Fred
need a little engine help
Thread Starter
Melting Slicks
Joined: Dec 2000
Posts: 2,130
Likes: 1
From: mesa,az
need a little engine help
built a little 327 for my 65 vette. Forged SJ crank, scat I beam rods, 11-1 TRW pistons, probe 1.6 shaft rockers, lunati solid flat tappet cam. 292 heads with 2.05/ 1.6 valves. I degreed everything, checked P/V clearance etc.... Ran the engine about an hour on my test stand. everything fine. I put a couple hundred easy miles on it yesterday. today I dropped the hammer a couple times, shifting at 6800 RPM etc. i pulled of the highway and the idle wasn't right. drove a mile and realized the engine was getting hot. popped the hood and i had thrown the belt. easy fix but now The passenger side pipe has a flat pop, like I have a dead cylinder or something. pulled the plugs and the all look the same. whats my next diagnostic step.
Thread Starter
Melting Slicks
Joined: Dec 2000
Posts: 2,130
Likes: 1
From: mesa,az
well compression is all the same across the bank. 180 # within a # or 2. I did find that a wire had come off the alternator but i don't see how that would account for the sound. I will pull the valve covers and take a look in the AM. the plug wires look good. Because I have no patience I pulled the valve cover tonight. nothing jumps out at me.
Last edited by panchop; Mar 19, 2007 at 11:37 PM.
Instructor
Joined: Jun 2006
Posts: 140
Likes: 0
From: Bergen, Norway
At the distributor mark all four wires that goes to the right side of the engine with masking tape, pull them out of the dist. cap and gently push them back in their place but not to tight. Start the engine and let it idle, with an insulated pair of pliers or similar gently remove each one of the marked wires and listen for a change in the idle rpm and sound. If one gives no change you have a dead cylinder and can investigate directly to this very cylinder starting with compression(which I believe you have already done) Good luck!
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