21192093 Adjusting Screw | Genuine Volvo Penta Part

🔧 Product Description

Genuine secondary adjusting screw used in the mechanical governor and fuel-control assembly of the Volvo Penta D1-30F marine diesel engine.

🚤 Compatibility

Typically suits:

• Volvo Penta D2-40F
• Volvo Penta D1-30F

• Engine Family: D
• HP Range: 30-40 HP

⚙️ Key Features

• Confirmed D1-30F application
• Secondary governor adjustment point
• Correct OEM thread and contact profile
• Used with the matched D1-30F spring and lever system
• Factory adjustment procedure required

🔌 Function

The screw sets the assigned governor linkage, spring preload or engine-speed stop.

⚠️ Common Signs of Failure

• Incorrect engine speed
• Governor hunting
• Loose adjustment
• Damaged screw or contact surface
• Linkage failing to reach its stop

🛠️ Service Notes

• Note and record the existing setting before disturbing anything, so you have a reference to return to if needed
• Release the lock nut fully before turning the screw, then reset the lock nut and re-check the setting — tightening the lock nut usually moves the adjustment
• Set to the clearance or position given in the workshop manual for your engine using the correct feeler or gauge; do not judge the setting by feel
• Inspect the tip and the threads and renew any screw with a worn, mushroomed or picked-up tip, because a worn tip makes the setting drift in service
• Never use an adjusting screw to force a component into position, and carry out a hot re-check after running if the manual for your engine calls for one

📦 Condition

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