AMC Rambler 1965 Operating manual

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INDEX
Technicql
Service
Mqnuql
, A-ericqn Motors Corporolion
iAulomolive Technicol Service
n 3280 South Clement Avenue
AM-65.4004
Milwoukee, Wisconsin 5320 1
TITHOGRAPHED IN U.S.A.
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ENGINE - 6 CYLINDER - L-Heod ond O.H.V;
195.6 Cubic Inch Displocement (
ENGINE - 6 CYLINDER _ O.H.V
232 Cul>ic lnch Displocement
COOLING
ELECTRICAL
FUEL _ CARBURETION _ EXHAUST (
(
TUNE-UP
(
CLUTCH
(
TRANSMISSION
(
OVERDRIVE
FLASH-O MATIC TRANSMISSION (
SHIFTING
BRAKES AND WHEELS _ HUBS AND DRUM (
REAR AXLE.PROPELLER SHAFT
FRONT SUSPENSION-STEERING GEAR (
(
WEATHER EYE
ALL SEASON AIR CONDITIONING (
HEAVY DUTY AND FLEET EQUIPMENT
BODY
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FOREWORD
The service proceduies ond specificotions contoined
in this monuol ore outlined for the I965 Rombler Amer-
icon Series.
The speciflcotions ond oc!lustments contoined in this
monuol were in effect ot the time of publicotion. Amer-
icon Motors reserves the right to discontinue models.
chonge speciflcotions or design, without notice or incur-
ring obligotion.
The brond nomes mentioned in this monuol ore to
be construed os ond/or their equivolent. They ore not
intended os odvertising moteriol but os specified type. {
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1ENGINE
I95.6 Cubic lnch L-Heqd qnd Overheqd Vqlve
aPoge
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.10
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- - :-., ?:MOVAL
- . ::.. 3ASKET INSTALLATION
: -' l:; -::D AND GASKET
:: _. _: ::',., SHAFT ASSEMBLY
- - '. : -: :- AND BEARINGS
PISTON PINS
CONNECTING RODS
CRANKSHAFT
REAR MAIN BEARING OIL SEALS . ..
VIBRATION DAMPER
STARTER RING GEAR
CLUTCH SHAFT PILOT BEARING . . .
LUBRICATION SYSTEM
OIL FILTER
POSITIVE CRANKCASE VENTILATION
SPECIFICATIONS . . .
DIAGNOSIS
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6 Cylinder L-Heod Engine
ENGINE IDENTIFICATION
he engine code number is locoted
:- c nochined surfoce on the upper
,e{: front corner of the dngine block.
The letter "A" included os port of
'Le number identifies the engine os the
'?5 6 Cu ln. 6 Cylinder L-Heod; letter
C" os the 195.6 Cu. ln. Overheod
' c '.e Engine (Fig. l). FIGURE 1 - Engine Code Number
Locolion - L-Heod Shown
6 Cylinder Overheod Volve Engine
Letter ldentificotion, Size of
Bore, Moin Beorings ond
Connecting Rod Beorings
ln the mochining of cylinder blocks
ond cronkshofts, it is sometimes neces-
sory to mochine the cylinder bores to
.0 10" oversize, ond the cronkshof;
moin beoring iournols or cronk pins tc
.010" undersize.
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These engines ore morked with o
three letter code, stomped below the
engine code number. The letters ore
decoded os follows'
First Letter Size of the Bore
Second Letter . . Size of the Moin
Beorings
Third Letter . Size of the Connecting
Rod Beorings
ENGINE
I95.6 Cubic lnch L-Heod ond Overheod Volve
compressor ond brocket ossembly ond
condensei.
Disconnect oll wiring, tubing, hoses
ond linkoge, which ore connected to
the body.
Disconnect exhoust pipe f rom ex-
houst monifold.
Support engine with lifting fixture.
Remove reor crossmember.
Disconnect front motor support
cushions from the engine.
Move engine forword ond upword
wh'ile supporting the propeller shoft.
ENGINE MOUNTING
Resilient rubber mounting cushions
support the engine ond tronsmission ot
three points. A cushion is locoted ot
eoch side on the center line of the en-
gine, with the reor supported by o
cushion between the tronsmission ex-
tension housing ond the reor engine
support crossmember. Removol or re-
plocement of ony cushion moy be oc-
complished by supporting the weight
of the engine or tronsmission ot the
oreo of the cushion.
Letter "4"
Letter "B"
Letter "C"
.. .. . Stondord
.0I 0" Undersize
, .010" Oversize
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FIGURE 2 - Engine Mounting
--O o
ENGINE REMOVAL
Remoyp hood ossembly; mork hinge
locotionrbn hood ponel to oid in os-
sembly.
Remove the bottery.
Droin the cooling system, engine ond
tronsmission lubricont.
Remove oir cleoner ond rodiotor
core. Where so equipped, remove the
power steering pump, oir conditioning
CYLINDER HEAD AND GASKET
Whenever o L-Heod engine cylinder
heod is removed, inspect the studs to
moke sure thot they ore tight in the en-
gine block. lf the studs ore removed,
they should be seoled with compound
upon replocement.
After thoroughly cleoning the top
surfoce of the block ond bottom sur-
foce of o cylinder heod, inspect eoch
for smooth flot surfoces with o stroight
edge.
Apply AM i?er{ect Seol" Seoling
Compound or equivolent to both sides
of the cylinder heod gosket.
Core must be used when plocing the
gosket over the studs on o L-Heod en-
gine to see thot the threods of the studs
do not domoge the gosket.
To focilitote Overheod Volve cyl-
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inder heod instollotion, o poir of guide
pins moy be fobricoted from cylinder
hecC cop screws by cutting off the
hexogon heod ond cutting o screw
i're. slot in the end.
- g"fen the cop screws or stud nuts
:? 'c 62 Foot Pounds of torque with o
-..'trJe wrench, following the sequence
s^:.r'n in Figures 3 ond 4. ln oll coses
-echeck lo torque specificotions with
=1."
ot normol operoting tempero-
Front
FIGURE3 * L Heod EngineCylinder
Heod Torque Tightening Sequence
1-17/32" 3-l 1-17 /32"
Stud Nut Type
FIGURE 4 - Overheod Volve Engine
Cylinder Heod Torque Tightening
Sequence ond Bolt Length Chort
ROCKER ARM AND SHAFT
ASSEMBLY
OverheodVolve Engine
The entire rocker orm ond volve os-
sembly is lubricoted by oil, under pres-
sure from the oil pressure gollery, di-
'ected through the opening provided
r rhe cylinder heod, then through the
:':-t rocker orm shoft".s0pport block.
- e 'ocker orm shoft is of one piece
:: ^s"r:ction. Therefore, the complete
,-:t' c-d rocker orm ossembly moy be
':-': . eC ofter the hold down bolts ore
":'':.:i
--: -::ker orms ore retoined on the
, -:'- . . r snop ring, thrust woshers,
r-l ..:.: ".:sher on eoch end of the
:rr:' =;,': 5 rllustrotes the ossembly
secr.e':3:i'he rocker orms on one
enc of':e s.c{i.
The:::<e- crm shoft must be in-
:': led '... 'i the rocker orm lubricoting
3 :c es locoted to the bottom of the
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ENGINE
195.6 Cubic lnch L-Heod ond Overheod Volve
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FIGURE 5 - Rocker Arm Shoft Assembly Sequence
(One End Shown)
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VALVES
Volve Adiustments
For peok performonce ond economy,
the volve cleoronce should be odiusted
every 8,000 to 12,000 miles (Figs.
6,7, 8 ond 9).
FIGURE 6 - L-Heod Volve Adiustment
(Cold Setting - lntoke, .016";
Exhoust, .01 8")
I nto ke
Exhoust
FIGURET-L-HeodVolve
Arrongement
FIGURE 8 - Overheod Volve
Adiustment with Engine "Hot" ond
Running, lntoke .012" - Exhoust.0l6"
Exhousl
FIGURE 9 - Overheod Volve
Arrongement
Volve Springs
Whenever volve springs ore re-
moved, they should be tested occord-
ing to the specificotions listed below
using o volve spring tester (Fig. I0).
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FIGURE l0 - Volve Spring Tester
Any spring not within the following
specificotions should be reploced.
L-Heod
Free Length
Volve Open
Volve Closed
25lzz"
75-82Lbs. @ 17|rc"
37-41 Lbs. @ 1y4"
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4
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Front
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Overheod Volve
Free Length 23h"
Volve Open I 15- l25 Lbs. @ 1 ?,r,r"
Volve Closed 65-70 Lbs. 62 lt3 rr"
It is not necessory to remove the c'vl-

inder heod in order to remove o volve
spring on the Overheod Volve Engine.
First remove ihe spork plug from the
cylinder thot requires o volve spring
replocement ond insert o 14 mm.
threod size odopter.
NOIE: Ihis odopler con be mode
from the body of o spork plug
from which the porceloin hos been
removed ond on oir hose connec-
tion threoded into the body of the
spork plug.
Mointoin oir pressure obove 90 Lbs.
in the cylinder while the volve spring is
being removed. The oir pressure will
hold the volve ogoinst the volve seot
so thot the volve lock ond the upper
retoiner con be removed (Fig. 11).
J_21931
FIGURE I I - Overheod Volve
Spring Removol
)-21073
FIGURE 12 - lnstolling Volve Lock -
l-Heod Engine
Volve Spring Position
When instolling volve springs, it is
importont thot the closely coiled end of
the spring be instolled toword the cyl-
inder heod os shown in Figure 13.
ENGINE
I95.6 Cubic lnch L-Heod ond Overheod Volve
Iocole
Close
Coils To
Cylinder
Heod
FIGURE l3 - Volve Spring Position
Volve Morgin
Correcl Volve Focing
lncorrecl Volve Focing
FIGURE l6 - Correct Volve Refocing
The L-Heod Engine exhoust ond
intoke volve seot ongle is 45o ond the
foce ongle is 44o The volve seot width
should be .078"-.093" for proper cool-
ing of the volve heods.
The Overheod Volve Engine exhoust
ond intoke volve seot ongle is 45o. The
exhoust foce ongle is 44tfo ond intoke
44o fhe volve seot width should be
.060"-,075" for proper cooling of the
volve heods.
lf the volve seot is too wide, it
should be norrowed by using the
proper ongle stones of l5o ot the top
ond 75" ot the bottom of the volve
seot.
Check the volve seot runout with on
occurote diol indicotor. The runout
should not exceed .0025" totol in-
dicotor reoding rFig. \7).
FIGURE I7 - Checking Volve Seot
Runout (Overheod Volve Design
Shown)
Volve Stem to Guide Cleoronce
Volve stem to guide cleoronce con
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FIGURE I4 - L-Heod Volve Assembly
Sequence
FIGURE l5 - Overheod Volve
Assembly Sequence
CAUI/ON: On the L-Heod Engine
moke sure that the springs ore
seofed in the counter bores of lhe
cylinder block to prevent excessive
weor on the valve slems ond vo/ve
guides.
Volve Refocing
It is importont when volves ore re-
foced thot lust enough metol be
ground off to cleon up the foce.
A heovy volve morgin oids in the
dissipotion of heot ond helps ovoid
volve worpoge (Fig. l6).
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ce a'a:.a: a ,' one of two common
r-e'!::: -a .l !e siem con be meos-
u-:r ,'. -- tr :r ce. micrometer ond
--: r, :: -::s',;.eC with colibroted
s -:: ied with volve grinding
=-- :: by tool componies. By
- -3 :-e d ometer of volve stem
rreosrred from the size of pilot se-
leaed ro snugly fit in volve guide, the
oil cleoronce con be computed.
A simple method for Overheod
Volne design is to diol indicote the
loterol movement, represenling volve
guide cleoronce, of the volve stem
with volve instolled in its guide os
*rown in Figure 18. The volve must be
ofi its seot.
FIGURE '18 - Checking Volve Guide
to Slem Cleoronce on Overheod
Volve Design
The L-Heod Engine volve stem to
guide cleoronce is .0025" to .004",
ond the Overheod Volve Engine,
.00.]5" to.004" intoke volves ond
.442" to.004" exhoust volves.
Reploce the guides when these cleor-
rnces ore exceeded. Check volve stem
: icmeters ond guides to determine
,.^e'her or not proper stem to guide
: ::'once exists.
' c re Stem Diometers ore:
ENGINE
195.6 Cubic lnch L-Heod ond Overheod Volve
ond instoll the L-Heod volve guides
(Fis. 19).
Ai time of instollotion, drive the
guides flush with the guide bore open-
ing in the block. The guides must be
reomed ofter instollotion.
)-21751+
FIGURE 20 - lnstolling Overheod
Volve Guides
Com Lift
L-Heod
Com lift is o function of the com
shoft lobe dimensions.
Com lifts moy be checked with the
use of o diol indicotor instolled on
the top of the volve os shown in Fig-
vre 21. The engine is shown without
studs for illustrotion purposes only. Re-
movol of studs is not necessory for
this operotion.
FIGURE 2l - Checking L-Heod
Com Lift
Volve losh should be odiusted to
zero before ottempting io check com
lobe lift.
Roiote the engine until com lobe
being checked hos the bosic circle
(opposite nose of com) under the volve
toppet. Set diol indicotor to zero. Ro-
tote engine to o point where moximum
upword movement of the volve occurs.
Reod the diol indicotor trovel. lt
should be .340" lor oll com lobes, in-
toke ond exhoust.
NOfE, frue volve lift is o resu/f
of com /obe dimension minus yolye
Iosh.
A defecttve com will resu/f in ex-
cess of minus .006" from the spe-
cified dimension.
Overheod Volve
Com lift moy be checked witL' '-=
use of o diol indicotor instoliec c- '::
of the volve rocker orm ca ,:- -:
screw (Fig. 22).
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.3407"-.3412"
.3407"-.34)2"
o lve a 11tt
.J+ I -.J+2
.340s"-.3415"
r,: --: --- !'L::,sl vo/ve sfem is
'tr::-:: ,---: :-'i' with its diom-
e':' :: -g .--: e- io lhe volve
::_
3. - 112q-O l s used lo remove
o
NOIE, Irue volve ltft is o '::
FIGURE '19 - lnstolling L-Heod
Volve Guide
The Overheod volve guides ore re-
moved with Tool J-l429-0\. Use Tool
J-2\7 54 for instollotion.
The guide must be instolled so thot
the top is locoted 23/e:" obove the sur-
foce of the lower spring seot.
Tool J-2 1754 when used ond driven
until bottomed estoblishes the required
23/a::" guide height (Fig. 20).
Volve guides musi be reomed ofler
insto llotion.

6
FIGURE 22 - Checking Overheod
Volve Com Lift
the cam lobe dimension, multi-
plied by lhe rocker orm rotio,
minus volve losh.
A defecfive com will resu/t in ex-
cess of minus .006" from lhe spe-
cilied dimensions.
To check for com lift the volve losh
should be odiusted to zero before ot-
tempting to check com lobe lift.
Rotote the engine until com lobe
being checked hos the bosic circle
(opposite nose of com) under the volve
toppet. Set diol indicotor to zero. Ro-
tote engine to o point where moximum
upword movement of push rod occurs.
Reod the diol indicotor trovel. lt
should be .262" for the intoke volve
com lobe, .263" exhoust volve com
lobe.
Volve Timing
Volve timing is determined by the
relotion between the sprocket on the
comshoft ond the sprocket on the
cronkshoft.
When instolling new ports, line up
the morked teeth, odiocent to eoch
other, on o center line drown through
the center of the comshoft ond the cen-
ter of the cronkshoft (Fig. 23).
FIGURE 23 - Ploce Morked Teeth
on Cenler Line When lnstolling
Sprockets ond Choin
ENGINE
I95.6 Cubic lnch L-Heod ond Overheod Volve
Before instolling the timing choin
cover, check the correct instollotion of
the timing choin; locote the morked
tooth on the comshoft sprocket ot op-
proximotely the one o'clock position.
This should ploce the morked tooth of
the cronkshoft sprocket where it be-
gins to mesh with the choin (Fig. 24).
FIGURE 24 - Correct Timing Choin
lnstollotion
Count the number of links between the
morked teeth of both sprockets. This
should be 9tl links or 19 pins. Eoch
link consists of two pins.
Volve timing moy olso be inspected
by locoting the No. 6 piston on T.D.C.
in flring position. Then set volves on
the No, 1 cylinder to .003" cleoronce.
Slowly rock the cronkshoft bock ond
forth.
lf timing is set properly, the exhoust
volve should open before the D.C.
mork on the vibrotion domper lines up
with the pointer. Note this distonce.
The intoke volve should open on equol
distonce o{ter the D.C. mork posses the
pointer.
lnloke Opens T.D.C Exhousl
Closes
Volve losh
..le"
lntqke Closes Exhoust Opens
FIGURE 25 - L-Heod Volve Timing
Diogrom
TIMING CHAIN COVER
The timing choin cover is provided
ko#n-r0 I
T.D.C
lntoke Opens Exhoust
Closes
Yolve losh
.o225"
lnloke Closes Exhoust Opens
FIGURE 26 - Overheod Volve Timing
Diogrom
with o rubber seol ond oil slinger to
prevent the leokoge of oil oround the
front cronkshoft pulley hub (Fig. 27).
Slinger
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FIGURE 27 -Iiming Choin Cover
To prevent domoge to this seol, it is
importont thot the cover be properly
oligned when instolling the vibrotion
domper. This is occomplished by leov-
ing the cover to block screws loose
until the vibrotion domper hos been
portiolly instolled. Then tighten the
cover screws.
The replocemert of 'he oil seol moy
be occomplished wrthoul the removol
of the timing choin cover by using
Tools J-9256 Remover ond J-9'l63 ln-
sto ller.
Figures 28 ond 29 show the engine
FIGURE 28 - Removing Timing Choin
Cover Oil Seol wirh )-9256
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1 20 30',
100 30
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; 3URE 29 - lnstolling Oil Seol
with J-9163
-:--:.ed {or illustrotion purposes only.
:- t me of instollotion opply o light
::: cotion of seoler to the outer diom-
=-:r of the oil seol, ond lubricote the
.nner diometer.
CAMSHAFT AND BEARINGS
The comshoft is supported by four
steel shelled, bobbitt-lined beorings
which hove been pressed into the block
ond line-reomed. The comshoft beor-
ings ore step-bored, being lorger ot
the front beoring thon ot the reor, to
permit eosy removol ond instollotion
of the comshoft. All comshoft beorings
ore lubricoted under pressure through
drilled golleries in the cylinder block.
Comshoft End Ploy
The cleoronce between the comshoft
thrust plote ond the comshoft sprocket
should be .004" to .008".
OIL PAN REMOVAL
Remove the front springs, ond then
support the weight of the front of the
acr.
Support the front of the engine from
::cve the engine comportmeni.
?enrove the engine support cushion
:-:ching nuts ot the engine mounting
ENGINE
I95.6 Cubic lnch l-Heod ond Overheod Volve
Droin the engine oil, turn cronkshoft
so number one piston is on uPstroke,
ond remove the oil pon.
OIL PAN GASKET
INSTALLATION
Cleon the gosket surf oces of the
cylinder block, timing choin cover
spocer, ond oil pon.
lnspect the oil pon gosket surfoce
for distortion ot the bolt holes; if nec-
essory peen the offected oreos to moin-
toin o smooth surfoce.
Apply gosket cement to the block,
timing choin spocer plote, ond the cor-
responding gosket surfoces.
lnstoll the oil pon reor rubber seol
into the mochined groove of the reor
moin com.
IIT4PORTANT: THE SEAL MUST BE
INSTALLED SO THAT THE RUB-
BER SIDE SEAL PORTION IS
PRESSED FIRMLY BETWEEN THE
CAP AND BLOCK. DO NOT USE
CEMENT ON THIS SEAL.
Position the oil pon gosket on the
cylinder block moking sure thot the
tongue portion of the cork gosket en-
goges into the groove of the rubber
pon seol.
Position the front gosket of the oil
pon on the spocer plote.
Position the oil pon to the block, in-
stolling o bolt on eoch side finger tight.
lnstoll the oil pon bolts which en-
ter through the timing choin cover;
tighten 8 to II Foot Pounds torque.
Instoll the remoining bolts; tighten
from the center in eoch direction 8 to
'I I Foot Pounds torque.
PISTONS
The piston ls o three ring type utiliz-
ing two compression rings ond o three
piece oil control ring.
The pistons ore ground, hoving o
lorger diometer meosured ot right on-
gles to the piston pin hole ond contoin
o steel strut for structurol strength ond
controlled exponsion. When operoting
temperoture is reoched, the piston ex-
ponds to flt the bore uniformlY ond
provide correct operoting cleoronce ot
oll points.
When instolling the piston ond con-
necting rod ossemblies, core must be
token to locote them correctly in the
7
engine block. The pistons ore morked
with o notch on their top perimefer.
They must be instolled with the notch
toword the front of the engine.
Fitting Pistons
Pistons ore fitted so thot eoch piston
will support its own weight in ony por-
tion of the cylinder with oll porls cleon
ond dry. Piston to bore cleoronce is
.0006" to .0012".
Before fitting the pistons, check the
cylinder bores for out of round or
topered condition. This check is mode
with o cylinder gouge or diol indicotor.
lf the bore is found to be out of round
in excess of .004", it should be irued
up by honing (rigid type).
lf cylinder toper exceeds .009", bore
must be trued up ond oversize pistons
ond rings used.
Piston Removol
Piston removol is occomplished from
the top of the engine. However, be-
fore removing the pistons, the ring
ridges in,ihe cylinder bores must be
removedr(Fig. 30).
FIGURE 30 - Ridge Reoming Prior
to Piston Removol
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o
ihe idler orm f rom the
r:- -. - 'Le front susPension cross-
-.^'..-:''cching bolts from the body
:'. '^' :-:ssrnember down to obtoin
...'i^.. t:- : i pon removol. Wood-
:- i.:::- : ::<s r-stolled between the
:':::-:-.3r cr^c ccdY side sill will os-
s:- - -clding ihe crossmember down.
Re,r ove the flywheel dust cover.
Foilure to remove the ridge,ot the
top of the cylinder bore will veiy often
result in piston ring breokoge ond
domoge to the piston groove lond.
oPISTON RINGS
A three ring piston is csej --=-;
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c-e iwo compression rings ond o three
o ece oil control ring.
Before ossembling the rings to the
piston, corbon must be cleoned from
ol ring grooves. The oil droin open-
lngs in the oil ring grooves must be
cleored. Core must be exercised not to
remove metol from the grooves since
this will chonge their depth; or from
the londs, since this will chonge the
ring groove cleoronce ond destroy ring
to lond seoting.
ENGINE
I95.6 Cubic lnch L-Heod ond Overheod Volve
Checking Ring GoP Cleoronce
Piston ring goP or loint cleoronce is
meosured in the bottom of the cylin-
der neor the end of the ring trovel
oreo (Fig.33).
t
2.771"
-L7U"
2.766"
2.756"
Diqmeter 'lst
ond 2nd Groove
Diomeler Third Groove
*r&
.091--8.
.080'\:
FIGURE 3l - Piston Meosurments -
Overheod Volve Piston Design Shown
Checking Ring Groove Cleqronce
Side cleoronce between lond ond
compression rings should be 002" to
.004". Roll the ring oround the groove
in which it is to oPerote. lt must fit
freely ot oll Points (Fig. 32)'
FIGURE 32 - Checking Ring Groove
Cleoronce
^-L-
FIGURE 33 - Checking Ring GoP
Cleqronce
Prior to instolling the Piston ond
connecting rod ossemblies into the en-
gine, the Piston ring goPs ore to be
orronged so thot the lf 'l compression
ring is 'l 80o from the Jf2 compression
ring gop. The oil control ring spocer
"*[ond"t goP is to be instolled ot
Ieost 90o from the ::2 comPression
ring gop. The oil control roil gops ore
to be instolled 90' from the sPocer
gop with ot leost 3Oo between eoch
roil gop.
FIGURE 34 - Gloze Removol
with Exponding TYPe Hone
Service Piston Ring Sets
For service ring replocement, follow
detoiled instructions enclosed in the
ring pockoge.
To squore the ring in the bore for
checking ioint cleoronce, ploce the
ring in the bore. Then, with o Piston'
prih th" ring down neor the lower
end of ring trovel oreo'
The comPression ring goP should be
.010" to .020".
When other thon stondord ring sizes
ore used, rings should be individuolly
fltted to their resPective bores'
Piston Ring lnstollotion
Removol of gloze from the cYlinder
woll for quicker ring seoting con be
occomplished by vorious methods' lf
the exponding tYPe hone, os shown in
Figure 34, is used, do not use more
thLn ten strokes (eoch stroke down
ond return) to recondition o cylinder
woll.
Successful ring instollotion depends
uoon cleonliness in hondling ports ond
while honing the cylinder wolls The
engine beorings ond lubricotion sys-
tem must be protected from obrosives'
Rigid tYPe hones ore not to be used
to remove cylinder gloze os there is
olwoys o slight omount of toPer in
cylinder wolls ofter the engine hos
been in service.
Rings must be instolled on the Pis-
tons with o ring instolling tool to pre-
vent distortion ond ring breokoge'
PISTON PINS
The piston Pins ore o Press fit into
the connecting rod, thus requiring no
locking device.
The piston pin is removed with Piston
Pin Remover J-21872 ond on orbor
oress.
The piston is Ploced on the remover
suooor; J-2187i'1 so thot the pin will
enter the suPPort when Pressed out
with the piloted driver J-2.l872-6 (FiS'
3s).
io instoll the piston pin, ploce the
piston pin pilot in the support o.nd-i1-
sert piston ond connecting rod' This
:lffi ff [:'Jr ;:1,.,"#?'''.ffi;:: €
into the connecting rod ond piston os-
sembly until the lower pilot enters the
.rooort ond the index mork on the
piiot is locoted ot the lower edge of
t
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