Mailbag: Troubleshooting Timing Problems on a Pontiac 400 ... Q: I have a 1980 Pontiac Firebird with a 400 cubic inch engine out of a 1978 Trans Am. The engine was built with parts from two different 400s, and the timing has never been right. The timing marks on the harmonic damper don’t line up properly with the pointer, and I’ve reset the distributor several times but it never lines up either. Pontiac Street Performance cam timing marks I repeated the degreeing process numerous times and each time I hit the 106 degree mark. This told me it was good to go and the cam was as manufactured. Race ahead to 2008 where I swapped in a p 276AH 10 bracket racing cam. With a new chain and timing gear mounted, I discovered the valve train was off. Timing Marks Hitman's Pontiac Trans Am Site This is a new motor, pontiac 400, for the life of me I could not get this thing to even sputter! after exhausting all of he little tips and tricks people have given me, I figured I had nothing to lose by tearing it down to double check the timing marks. I found that my dots are both striaght up and would like them to point at each other. Timing on a 400 Pontiac Canadian Poncho Timing on a 400 Pontiac Members Login; Login with Facebook ... I ran my 455 without vacuum advance for many years, i finally hooked it up to help with the idle due to a lumpier cam. Edited by BILTIT at 14:16, 2008 08 14 ... I think I found out the problem.My cam is worn flat on the exhaust valve on #5 cylinder. Timing Chain Repair Guide AutoZone The V6 engine has two timing marks on the harmonic balancer. A one inch long, thin scribe mark is used for strobe light timing. Another mark, four inches back, has a wider slot and is about one half inch long. This mark is used for magnetic pick up timing. Pontiac Engines Where should your timing mark be on a Pontiac 326 ... Where should your timing mark be on a Pontiac 326? It is located on the harmonic balancer. ... the starter on all Pontiac 326 455 engines are on the drivers side of the engine. Pontiac Street Performance timing advice it was way off the timing tab indicator when i brought the engine to TDC set the timing @ 12 deg. initial after installing new balancer reset idle runs great! i also have the unilite distibutor with vac. adv. never modified it, it does the job but my engine is a 389 30, mild cam mag. rockers, maybe a mod. is in order like brian suggests, being a 455 the tuneup certainly would be different, and ... Wear is the timing marks on a 1977 Pontiac 400? Answers Wear is the timing marks on a 1977 Pontiac 400? The timing marks are at the front passanger side of the engine on the timing chain cover. It helps to mark the line on the balancer with chalk or ... Pontiac 400 that is about to make me pull my hair out. OK, I have a Pontiac 400 that is about to make me pull my hair out. Rebuilt 400 stock internals comp cam something like (NOT EXACTLY!!) 246 269 with .444 .455 lift. High energy p cam, I think. Small not lumpy. Hurricane intake Rochester carb rebuilt HEI distributor. Quick ratio rocker arms with polylocks lashed ½ turn past “0” lash. Timing for a Pontiac 400? | Yahoo Answers I have a 67 Pontiac Firebird. It has a 400 ram air engine with an HEI distributor, 8.8mm plug wires, new timing chain, etc. The whole motor is rebuilt and the cam is now an Edelbrock performer cam with an Edelbrock performer intake and a thunder series carb. The cam has a .470 lift and a 320 duration i think. What degree to i adjust my timing to with the vaccum advance?

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