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Old 07-12-2018, 09:17 PM
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Default 454 issues

Just got my 454 back from the shop from being built. Stock bore, aluminum heads and intake, mild cam and roller rockers, 10:1 compression. He put marks on the the distributor as to where the timing should have it crank up at. Problem is it won't crank just back fire. Through the carb then through the headers. We walked the spark plugs back and they are right. It's like you don't get the trying to crank sound just backfire or nothing. I NEED HELP!!!
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Old 07-12-2018, 11:22 PM
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Sounds like you got the dizzy in 180 degrees off. Rotor should be pointed to number 1 wire tower with number one cylinder at TDC compression stroke.
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Old 07-12-2018, 11:22 PM
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You can hook up your timing light and check the timing as you crank (turn over) the engine. If the engine still acts the same with the timing where it wants to be, then it may be a valve lash issue.
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Old 07-13-2018, 10:42 PM
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Whoever rebuilt the engine probably lined up the dots with the cam gear dot at the bottom of the cam gear which is TDC for # 6 cylinder. He then put the distributor in with the rotor facing # 1 cylinder. He should have rotated the damper one full revolution and then put distributor at # 1 ( the dot on the cam gear will be at the top of the cam gear and the dot on the crank gear will be at the top of the crank gear). 180 degrees off.
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Old 07-14-2018, 07:29 AM
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Quote:
Originally Posted by Al Loyrat View Post
Whoever rebuilt the engine probably lined up the dots with the cam gear dot at the bottom of the cam gear which is TDC for # 6 cylinder. He then put the distributor in with the rotor facing # 1 cylinder. He should have rotated the damper one full revolution and then put distributor at # 1 ( the dot on the cam gear will be at the top of the cam gear and the dot on the crank gear will be at the top of the crank gear). 180 degrees off.
That would do it too but you'd think a pro engine builder would get that right. Could just be the OP here just put the dizzy in at TDC #1 on the exhaust stroke not compression so I'd check that first.
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Old 07-14-2018, 09:25 PM
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Well, whoever put the distributor in wrong is dizzy. Maybe the engine builders name is Dizzy.
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