PDA

View Full Version : SR20 Help


nismosil40zx
10-09-2005, 09:53 PM
Alright, this is what happened. I went out one night im my SR20det redtop powered S13. Raced a couple times and started to hear a knock of some sort. At idle it doesnt knock but when you rev it up it starts to knock. So we pull the cam off to check the lifters and see if there was air or anything in them to make them malfunction. That test came out ok no problems there. When we turned the car back on we felt alot of vibration coming from the chain. How could i ckeck that to see if it stetched or if the tension is broke and making it slap around in there. but without tearing the motor all apart.


Thanks

nismosil40zx
10-11-2005, 04:58 PM
Nobody has any good ideas?

fliprayzin240sx
10-12-2005, 01:02 AM
Well when it revs, does the knock stay consistent with the revs? If it does, it could be your bearings done. Id take the oil out and the bottom of the oil pan to see if you got brass shavings in it. If you got chunks or lots of shavings, then yah your bottom ends done. Stock rod bearings suck!!! I went tru 3 block cuz of rod knocks.