my rb20 knockin wtf???? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Bigsyke · 05-30-2009, 02:30 PM

Maybe you have an oil restriction somewhere? Are you sure its an internal knock? what kind of mounts do you have? I would start from the basics on everything, Go through every bolt on the car and recheck the torque. Check and see if the engine isnt vibrating against something that may resonate like an internal knock.

Then check your oil, filter...drain the oil on a super long plastic container (storage containers at target) to see if there is any shavings, Id suggest in a Magnetic drain plug. Check compression, leakdown, pressure test the radiator etc, check timing. Maybe try a clean/rinse cycle with a bottle of AutoRX to see if compression changes.

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05-30-2009, 02:30 PM	#26
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	Maybe you have an oil restriction somewhere? Are you sure its an internal knock? what kind of mounts do you have? I would start from the basics on everything, Go through every bolt on the car and recheck the torque. Check and see if the engine isnt vibrating against something that may resonate like an internal knock. Then check your oil, filter...drain the oil on a super long plastic container (storage containers at target) to see if there is any shavings, Id suggest in a Magnetic drain plug. Check compression, leakdown, pressure test the radiator etc, check timing. Maybe try a clean/rinse cycle with a bottle of AutoRX to see if compression changes.