down for the count
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Senior User
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down for the count
so my truck has been acting up lately the starter has been grinding against the fly wheel when i try to start my truck so i haft to turn the engine a little bit to find the sweet spot on the fly wheel and than it will start talked to a mechanic and he says the crank shaft bearing have gone out causing movement between my fly wheel and engine so ill haft to replace those the rear main seal and oil pan gasket not to mention i have a oil leak somewhere in my engine I have a 2001 Ford F350 lariat cc lb 7.3 automatic
Post Fiend
Joined: May 2009
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From: Pea Ridge, AR
Are you sure it's not just a cracked/or worn flexplate? That's relatively common.
You don't actually have a flywheel with an auto. If your crankshaft bearing is that worn, you have more serious issues in my opinion.
You don't actually have a flywheel with an auto. If your crankshaft bearing is that worn, you have more serious issues in my opinion.
Cargo Master
Joined: Oct 2010
Posts: 2,089
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If your crank has that much play in it, the crankshaft pulley would look oval when running and there would be a nasty vibration.
Check your flex plate through the inspection cover. It will probably be a little snaggle toothed.
Check your flex plate through the inspection cover. It will probably be a little snaggle toothed.
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I replaced the starter Friday since the last stock stater wasn't engaging i replaced it with one from Napa i will take a picture of the teeth on the flex plate and post it
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Cargo Master
Joined: Oct 2010
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Why did you replace flexplate originally? Something is not right but I would really be surprised if its as bad as all that in the original post.
If the teeth were worn on the original starter with the new flex plate, it would damage flexplate.
If the starter is not always disengaging, it will damage flex plate.
If the number of teeth were wrong on the new starter, it could cause damage.
There are million things that can cause it but something is missing out of the information loop. The starter was originally a Ford but is now a Napa. Is there anything else you can think of to add? How is battery voltage when cranking?
Is it a 2 bolt or a 3 bolt starter and are all the bolts back in it? I ran into this one on a cat recently and the guy driving it knew better but was holding that heavy beast in with one bolt.....at the bottom.
We need our trucks to run and nothing is more frustrating when they do not run. I just do not want you to spend your money and be back here again so I am trying to pick you for more information.
If the teeth were worn on the original starter with the new flex plate, it would damage flexplate.
If the starter is not always disengaging, it will damage flex plate.
If the number of teeth were wrong on the new starter, it could cause damage.
There are million things that can cause it but something is missing out of the information loop. The starter was originally a Ford but is now a Napa. Is there anything else you can think of to add? How is battery voltage when cranking?
Is it a 2 bolt or a 3 bolt starter and are all the bolts back in it? I ran into this one on a cat recently and the guy driving it knew better but was holding that heavy beast in with one bolt.....at the bottom.
We need our trucks to run and nothing is more frustrating when they do not run. I just do not want you to spend your money and be back here again so I am trying to pick you for more information.
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Senior User
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i cant get the pictures off my camera but on the flex plate some of the teeth on the engine side are ground off the thickness of a quarter and in other spots they look brand new my previous flex plate broke right where the bolts mount the wheel to the engine it broke the wheel so it was a large disc and a small disc
Cargo Master
Joined: Oct 2010
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What I would want to know is this: Does the new flex plate spin true when running? If not, it could have been dicked up on the install whether it was bent or dowel pin missing out of tranny bellhousing.
I am not sure about the autozone flexplate how its made or its quality so no comment there on that or the converter.
Hopefully, overnight someone can offer another opinion or even a person to take it to near you. If I think of another idea, I will get with you.
The only other thing I have ever seen is the starter not fully engaging on some aftermarkets but you were having the issue with the Ford starter you stated.
I am not sure about the autozone flexplate how its made or its quality so no comment there on that or the converter.
Hopefully, overnight someone can offer another opinion or even a person to take it to near you. If I think of another idea, I will get with you.
The only other thing I have ever seen is the starter not fully engaging on some aftermarkets but you were having the issue with the Ford starter you stated.
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Senior User
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the factory starter was fine for awhile with the auto zone flex plate and tc there was the pin me and my dad did align the pin and made sure the transmission was aligned when we put moved it back into place