302 CI Vibaration
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302 CI Vibaration
Hey guys,
I have a 302 Ci in a 68 Cougar. The problem I am getting is that I feel vibrations when driving on smooth roads. I do remember my Flywheel being to small to catch the teeth of the starter. I went ahead and bought a bigger Flywheel. My concern is would I get a vibration if the weight balancer is off mark. Just curious, I can not seem to stop the vibration.
I have a 302 Ci in a 68 Cougar. The problem I am getting is that I feel vibrations when driving on smooth roads. I do remember my Flywheel being to small to catch the teeth of the starter. I went ahead and bought a bigger Flywheel. My concern is would I get a vibration if the weight balancer is off mark. Just curious, I can not seem to stop the vibration.
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Originally Posted by HemiEater
does it vibrate just sitting in one spot or just when you are driving it?
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Originally Posted by HemiEater
what year is the engine and what year flywheel did you buy....?
got any casting numbers?
and does it run on all 8 ?
got any casting numbers?
and does it run on all 8 ?
Silly me, sorry bud. I don't know the year, i know it's a stroked 302 to 347 but i still say it's a 302. But, i have no idea i will look for any casting numbers tonight and let you know. It runs on all 8, but what the hell could it be, a crooked driveshaft, it can't be cuz when it turns in the morning it shakes too much. It's not normal. All i did was changed the tranny, torque converter and flywheel. Could it be that the Flywheel that is bolted wrong on the bell-housing which will cause an inbalance.
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Originally Posted by HemiEater
you might have a 50oz flexplate on a 28oz crank...if it's a stroker most of them are balanced to 28oz so you would need a 28oz flexplate. Do you remember what flexplate you bought.
The flexplate i have now does weigh more then the original one. But the original one would not be big enough to catch the teeth of the starter to crank the motor. So, i had put in a larger flywheel to accomadate that. I guess i was wrong. Something is Fishy, what do you think.
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Postmaster
Joined: Jun 2005
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they make 158 and 164 tooth flexplates (I think I got those right) both 50oz and 28oz balance you just need to find out what you have. Do you still have the old FP if so look for date code stamped into it.
where did you get the 164 tooth flexplate you have in it now?
all 302 up to like 1980 were 28oz along with most stroker cranks
after 1980 they came out with the 5.0 ...50oz balance...and you can't mix them up.
where did you get the 164 tooth flexplate you have in it now?
all 302 up to like 1980 were 28oz along with most stroker cranks
after 1980 they came out with the 5.0 ...50oz balance...and you can't mix them up.
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Elder User
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Originally Posted by HemiEater
they make 158 and 164 tooth flexplates (I think I got those right) both 50oz and 28oz balance you just need to find out what you have. Do you still have the old FP if so look for date code stamped into it.
where did you get the 164 tooth flexplate you have in it now?
all 302 up to like 1980 were 28oz along with most stroker cranks
after 1980 they came out with the 5.0 ...50oz balance...and you can't mix them up.
where did you get the 164 tooth flexplate you have in it now?
all 302 up to like 1980 were 28oz along with most stroker cranks
after 1980 they came out with the 5.0 ...50oz balance...and you can't mix them up.
Best regards
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Joined: Jul 2007
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I have a few questions:
are the stock cranks set for a certain balance weight, and then you require both the harmonic balancer, and flexplate to match?
or, are the stock cranks set to one imbalance, and then you have either 50oz/28oz balancer / flexpate?
are the stock cranks set for a certain balance weight, and then you require both the harmonic balancer, and flexplate to match?
or, are the stock cranks set to one imbalance, and then you have either 50oz/28oz balancer / flexpate?
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Joined: Dec 2001
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From: Louisville,Ky.
They should match. If 50oz imbalance, then the balancer and flexplate must be 50oz. The cranks are set at one imbalance. So it sounds like you need a 28oz balancer and a 28oz flexplate. If you are using the Cougar balancer, then it is already 28oz. 82-up HO engines were 50oz imbalance. Most stroker cranks that I have seen are 28oz.
