OMT V20230511 User manual

Valve Spring
Compressor
Instructions
Safety Information
Specications
• The instructions provided herein are only for general information. ALWAYS perform all repairs in full compliance
with your vehicle’s service manual. After any repair, test your engine and vehicle in your workshop and at low
speed before returning to normal use. Failure to do so may result in serious property damage, and severe
personal injury.
• DO NOT allow children or those unfamiliar with this product and its compatible valve springs to use it. Do not
use while under the inuence of alcohol, drugs, or any medication that negatively a󰀨ects your judgment or
reexes. Keep children and bystanders away during use.
• Keep your work site clean and well lit. Cluttered and dark work areas invite accidents.
• For best results, keep the kit clean and dry. Remove any uid, oil, or grease before and after work, particularly
from the handle and ttings.
• ALWAYS use personal protective equipment (PPE) suitable to your task. Always wear ANSI-approved eye
and hand protection while using this product. Nonslip footwear is also highly recommended. Other equipment
such as ear, head, and body protection may also be necessary depending on your work and other equipment.
• Dress properly for automotive servicing. Do not wear loose clothing or jewelry and keep hair, clothing, gloves,
hoses, and tools away from any moving parts during use.
• ALWAYS know and understand the specic safety warnings and instructions for your vehicle before using
this kit. Use the correct adapters for your vehicle. Make sure the parking brake is activated before beginning
any work. Use with jack and jack stands able to fully support the necessary weight. Never touch any heated
surface with exposed skin.
• Do not overreach. Keep proper footing and balance at all times.
• DO NOT use excessive pressure with this product and do not force it or its attachments.
• Maintain this product. Check for misalignment, binding, wear, or other damage before use. If any damage is
detected, repair or replace the problematic components before further use. In a large shop, mark such tools
DO NOT USE until they have been repaired. Only replace components with identical parts.
Warning!
V20230511
Material AISI 1045 Steel
Adapter Diameters 16 mm, 19 mm, 23 mm, 25 mm, & 30 mm
Adapter Length 1.8 in. 4.5 cm
Extension Bolt Lengths 3 & 4.4 in. 7.5 & 11.2 cm
Max. Jaw Opening 9.4 in. 24 cm
Case Dimensions 14×2.4×9.1 in. 35.1×6×23 cm
Lapping Tools Length 8.7 & 9 in. 22.2 & 22.8 cm
Suction Cup Diameters 0.6, 0.7, 1.1, & 1.4 in. 15, 19, 28, & 35 mm
Net Weight 5.1 lb. 2.3 kg

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SCK-N001-00 SCK-N001-BL Rev. 11 May 2023
Maintenance
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• Clean the tool with a soft damp cloth using a
mild detergent or solution after use. Do not
rinse it or use abrasive cleaners or caustic
chemicals.
• For best results, lubricate the tool with high-
quality anticorrosive oil between uses.
• Check the parts of the tool periodically for
any wear or damage. Repair or replace any
problematic parts before further use.
• If the tool will not be used for an extended
period of time, clean and lubricate it and store
it in a cool dry place inaccessible to children.
Parts List Operation
No. Name Qty.
A T-Handle Bar 1
BC-Clamp 1
CT-Handle Bolt 1
DLong Extension Bolt 1
EShort Extension Bolt 1
FCollet Adapters 5
1. Position a dowel or socket on the valve spring retainer.
Make sure the dowel or socket is similar in size to the
retainer and not positioned on the valve. Tap the top of
dowel or socket with a hammer. This loosens the valve
collets from the spring retainer.
2. If applicable, remove the clip from the valve collets.
3. Determine which valve spring adapter and extension
bolt best t the application, ensuring the adapter does
not interfere with the valve collet. Thread the adapter
onto the extension bolt.
4. Thread the extension bolt and T-handle bolt into the
C-clamp.
5. Position the cup on the end of the T-handle bolt against
the valve from beneath. Position the compressor with
the adapter centered squarely on the spring retainer.
6. Turn the T-handle bolt clockwise using the T-handle bar
to compress the valve spring and expose the collets.
7. Remove the collets. Loosen the T-handle bolt to
release pressure on the compressor and remove the
compressor tool. The valve spring assembly can now
be removed from the cylinder head.
8. To lap the valves, use a metal brush to remove any
incrusted carbon and clean the valve and its seat. Add
a small amount of grinding paste around the outside
of the valve and attach the lapping tool with the best
matching suction cup to the head of the valve. (A bit
of grease or water can help the suction cup produce
a strong seal with good grip.) Insert the valve back
into its port. Quickly but evenly rotate the lapping tool
between your hands and listen for the change in tone
from a grinding sound to a smooth one. Once the tone
has changed, partially remove the valve and apply a bit
more grinding paste. Reinsert the valve and continue to
quickly and evenly rotate the lapping tool until both the
valve head and seat are equally shiny without any dull
patches. Clean the valve and port.
9. Install new valves, retainers, springs, and collets/
keepers (or reinstall the old ones) by reversing the
procedure for removal. Be careful to replace all parts
in the exact ports and positions from before. A bit of
grease can help hold collets/keepers in place during
reassembly. Be sure all parts are well seated and hold
properly before releasing tension and moving on to
your project.
Included but Not Pictured
Lapping Tools × 2
Gloves × 2