Walk me through troubleshooting a knock
My dad built a 383 for me before he passed away last year, so I have lost my dad and my mechanic. Hopefully, you guys can walk me through this one.
I changed the oil after the first 500 miles, it has about 750 on it now. Anyway, I have been starting it about every week just to let it run, the last time I started it I heard a knock from the left side. I checked the oil and it was about 1 quart and 1/2 low and black (I was surprised). I put more oil and the knock quieted down. After it warmed up, it went away or at least I couldn't hear it. The next day, I started it up and heard the knock, but it seemed to go away again when it got warm. I have good oil pressure.
My first thought would be that I have a bad lifter. My question would be how would you go about troubleshooting, I haven't even pulled the valve cover yet, I have been a little worried about what I may find.
I had read that you could pull the spark plug to eliminate any issue with the upper valve train.
Anyways, where do I start to troubleshoot.
On a side note: I doubt this is related, but I never felt like my cousin and I got it tuned right. I always, had a bunch of white smoke on start up, if I get on it again a bunch of white smoke, spark knock under acceleration, sometimes a hesitation at WOT when reving in the garage. Here are some specs on the motor.
Camel Hump Heads - 194 valves with 62 CC heads - 3782461
Comp High Energy Dual Energy Cam - High Energy Cam Dur Int. 268 Exh. 268 Lift Int. .454 Lift Exh. .454
Edelbrock Perfomer - High Rise
OC Nodular iron crank
5.7 OC re-con rods with ARP bolts
Hypereutectuc TRW flat top pistons
Moly rings & bearings
Balanced, Including new flexplate & balancer
Saturday Night Special. 1600-1800 rpm
1968 SS Camaro 383 (Sold) :-(
1967 Chevelle SS 396 Convertible (project not started - REAL 138 car)
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Last edited by jhilts; Feb 22nd, 07 at 11:55 AM.