302 that vibrates
Posting Guru
Joined: Nov 2003
Posts: 1,071
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From: Concord, New Hampshire
sitting in nutral with the clutch in brng up your rpms slowly to about where it normally starts and see if it still does it, that way you dont have to leave the yard to find out where its comming from. and if it dosent i would lean to u joints like mentioned above.
Posting Guru
Joined: Nov 2003
Posts: 1,071
Likes: 1
From: Concord, New Hampshire
just wondering, is it possble to have the fly wheel on, and indexed wrong, thus causing the im ballance in it to work against you, like heavy side of the crank and the heavy side of the flywheel matching up, versus, heavy side of the crank matching with the light side of the flywheel??
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Junior User
Joined: Jan 2003
Posts: 50
Likes: 1
From: Beaumony, texas
When I replaced the balancer and while all the belts were off I started the engine and it still vibrates. As for the flywheel being indexed right, one or more of the bolt holes will not aline with the crank holes if its not indexed right. Does anyone know if theres a difference between auto flywheels and truck flywheels. I ask this because the casting numbers on the engine indicate that it is an auto engine and the casting number on the flywheel indicates it is a truck flywheel.
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Junior User
Joined: Jan 2003
Posts: 50
Likes: 1
From: Beaumony, texas
The engine is a 74 model, the flywheel is a 77 model and the balancer is a 74 model. The crankshaff is a 2MA. Everthing tells me you should use 28oz. flywheel and balancer. Do not know the history of this engine. The previous owner did not install this engine. Do not know how to get in touch with his previous owner.
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Joined: Jun 2002
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From: Dodgeville WI
I also had vibration problems when I put my 5.0 engine in my 1987 ranger,
since it was 10 hours of work to remove the cab and split the tranny off to get back to the flywheel I went with this,
http://cgi.ebay.com/ebaymotors/ws/eB...938588080&rd=1
5.0 Mustang ALUMINUM FLYWHEEL
that has the different Balances you can add and remove to get the best for your application. This way with everything back together and all I had to due was take off the dust shield and I could change the balance of the flywheel, and go with the setup that had the least vibration.
It is tough to know what is corrcect when you are not sure of what you have.
that was part of my problem also.
any just an idea for you. yes I know the aluminum is $$$$ but how much is it worth your time to keep taking everything apart and putting back together?
good luck with what ever you due.
since it was 10 hours of work to remove the cab and split the tranny off to get back to the flywheel I went with this,
http://cgi.ebay.com/ebaymotors/ws/eB...938588080&rd=1
5.0 Mustang ALUMINUM FLYWHEEL
that has the different Balances you can add and remove to get the best for your application. This way with everything back together and all I had to due was take off the dust shield and I could change the balance of the flywheel, and go with the setup that had the least vibration.
It is tough to know what is corrcect when you are not sure of what you have.
that was part of my problem also.
any just an idea for you. yes I know the aluminum is $$$$ but how much is it worth your time to keep taking everything apart and putting back together?
good luck with what ever you due.
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