Won't start, I am throwing in the towel
#2693252
08/31/19 08:11 PM
08/31/19 08:11 PM
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Joined: Aug 2019
Posts: 16 irvine, california
stephen
OP
member
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OP
member
Joined: Aug 2019
Posts: 16
irvine, california
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hi guys, need some serious help here.
1967 plymouth fury III 383.
one day driving down the road, a loud backfire then engine died, wouldn't start. so I had it towed home and have replaced the following since:
new distributor, new ignition coil, new fuel pump, new fuel filter.
still wont start. but I can feel it really WANT TO start, so close..... yet.....
I used the spark tester, has sparks to the plugs.
what am I missing? what else should I try?
please help.
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Re: Won't start, I am throwing in the towel
[Re: stephen]
#2693255
08/31/19 08:14 PM
08/31/19 08:14 PM
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Joined: Jan 2003
Posts: 20,185 Park Forest, IL
slantzilla
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 20,185
Park Forest, IL
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If the motor has a lot of miles on it I would guess the timing chain skipped a tooth.
"Everybody funny, now you funny too."
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Re: Won't start, I am throwing in the towel
[Re: slantzilla]
#2693256
08/31/19 08:17 PM
08/31/19 08:17 PM
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Joined: May 2019
Posts: 6,289 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,289
nowhere
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If the motor has a lot of miles on it I would guess the timing chain skipped a tooth. That was my first thought as well.
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Re: Won't start, I am throwing in the towel
[Re: mopars4ever]
#2693262
08/31/19 08:33 PM
08/31/19 08:33 PM
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Joined: May 2019
Posts: 6,289 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,289
nowhere
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skipped a tooth means time for a new timing chain and gears If you are lucky, if not it means bent valves.
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Re: Won't start, I am throwing in the towel
[Re: Powerflow]
#2693288
08/31/19 10:51 PM
08/31/19 10:51 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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You might do a compression test, easy & non invasive. The socket for the crank priorly mentioned is 1&1/4". As said I would ask for some help. Holler how it turns out.
live every 24 hour block of time like it's your last day on earth
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Re: Won't start, I am throwing in the towel
[Re: slantzilla]
#2693299
08/31/19 11:11 PM
08/31/19 11:11 PM
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Joined: Nov 2005
Posts: 1,943 San Angelo, Texas, U.S.A.
1968RR
top fuel
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top fuel
Joined: Nov 2005
Posts: 1,943
San Angelo, Texas, U.S.A.
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If your timing chain jumped, you may start losing teeth on your torque converter/flywheel (if you have an automatic transmission) when your engine backfires. If this starts to happen don't waste your time and assume that it is a starter issue. Unfortunately, I'm speaking from experience... Good luck.
"When I'm in a slump, I comfort myself by saying if I believe in dinosaurs, then somewhere, they must be believing in me. And if they believe in me, then I can believe in me." - Mookie Wilson
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Re: Won't start, I am throwing in the towel
[Re: Alaskan_TA]
#2693325
09/01/19 12:54 AM
09/01/19 12:54 AM
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Joined: May 2006
Posts: 1,757 Phila
PhillyRag
top fuel
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top fuel
Joined: May 2006
Posts: 1,757
Phila
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Remove your distributor cap so you can see the rotor. Get a breaker bar & find a socket the right size for the harmonic balancer bolt inside the crank pulley. Rotate engine just until you see the rotor end move. Then change directions, if you can turn the engine several degrees before the rotor starts to swing back, your timing chain and / or pulleys have worn to excess. Best 1st move to make IF you KNOW that motor has many miles on it, OR even if you don't. A true roller chain/gear would have to wear alot before skipping. Those plastic coated teeth gears, not so much. When those plastic pcs. break off the gears, they usually fall into the oil pan. Drain some oil & see what's there.
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Re: Won't start, I am throwing in the towel
[Re: Sniper]
#2693378
09/01/19 09:58 AM
09/01/19 09:58 AM
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Joined: May 2006
Posts: 2,046 ky.
kenworth_goose
top fuel
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top fuel
Joined: May 2006
Posts: 2,046
ky.
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If the motor has a lot of miles on it I would guess the timing chain skipped a tooth. That was my first thought as well. Skipping one tooth will not make it not run! I would say it has jumped timing but not just one tooth.
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Re: Won't start, I am throwing in the towel
[Re: kenworth_goose]
#2693381
09/01/19 10:11 AM
09/01/19 10:11 AM
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Joined: May 2019
Posts: 6,289 nowhere
Sniper
master
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master
Joined: May 2019
Posts: 6,289
nowhere
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If the motor has a lot of miles on it I would guess the timing chain skipped a tooth. That was my first thought as well. Skipping one tooth will not make it not run! I would say it has jumped timing but not just one tooth. One tooth, two teeth, ten teeth, point is it needs to be checked and fixed regardless of the number of teeth it may have jumped.
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