22037554 Tool | Genuine Volvo Penta Part

🔧 Product Description

Valve-spring compressor used to compress the valve spring and expose the collets/keepers so the retainer, spring, valve-stem seal and valve can be serviced.

⚙️ Key Features

• Volvo Penta workshop designation for GM EN-38606 / J-38606
• Compresses valve springs squarely
• Provides access to valve keepers and retainer
• Suitable for valve-stem-seal and valve service
• Use with the correct cylinder-head adapter and support
• Engine type: Volvo Penta GM-based marine petrol V6 and V8

🔌 Function

Compresses the valve spring while controlling the spring retainer, allowing safe removal or installation of the valve keepers.

⚠️ Common Signs of Failure

• Bent compressor frame
• Damaged forcing-screw threads
• Worn spring-retainer cup
• Tool slips or will not remain square
• Cracks around pivot or reaction points

🛠️ Service Notes

• Special tools are matched to particular engine and drive families — check the tool against the procedure in the workshop manual for your engine before ordering, as an almost-right tool will damage what it touches
• Use the tool only for the operation it was designed for, and do not add bars, extensions or leverage to make it reach further or pull harder than intended
• Inspect before every use and retire anything cracked, bent, spread at the jaws or worn in the threads rather than persevering with it
• Clean, dry and lightly oil the tool after use and store it where the working faces cannot be knocked out of true

🔄 Supersession & Cross Reference

Other-Brand OEM Numbers

• GM: EN-38606
• GM: J-38606
• GM / Kent-Moore: EN-38606
• GM / Kent-Moore: J-38606

Aftermarket / Verified Equivalents

• Related off-head compressor: Volvo Penta 885128 / GM EN-8062

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging