Quick T5 install questions

Hg80Design · Apr 19, 2009

I have two quick questions.

Can anyone tell me how to visually verify a 28 or 50 oz flexplate. Pretty sure it is a 28 but would still like to know for sure. I have rebuilt 79 302. Weight on the flexplate measures 4" in length. Flexplate is identical in size to my 157 flywheel.

I also want to verify the Pilot busing is installed where I have it mocked up. See picture. Is there any special way to install this or just tap it in until its flush?

Thanks in advance.

BarnStang · Apr 19, 2009

Is there a Ford part number on the flexplate? Or is it aftermarket? Generally the weight would be smaller on the 28oz imbalance part. Also see if you can find an aftermarket part number and Google that.
If you haven't drifted that pilot bushing in yet, pull that out and get an 87-93 Mustang roller pilot bearing.

Rusty67 · Apr 19, 2009

I agree on the pilot bushing. You shouldn't run one. Pilot bearings are much better and they are super cheap as it is.

As far as the flex plate, I don't know how you are going to run a T5 with a flex plate ? Flex plates are for use with automatic transmissions. You need a flywheel which you can bolt a clutch to.

If you are just using the flex plate for mock up purposes and yer not going to actually start the car with it, then the imballance on it doesn't matter.

Get the part number off of it and we can provably tell you what it is.

Hg80Design · Apr 19, 2009

I am not going to be using the flexplate to run the car with a T5. I have both 28 and 50oz flywheels. I am unsure of which flywheel to use. I was told if I can identify wether my flexplate was 28 or 50 I could use the corresponding flywheel. sorry for the confusion

The only numbers on the existing flexplate are:

0170121

Thanks for the heads up I will pick up a pilot bearing as soon as possible.

BornInAFord · Apr 19, 2009

Nothing definitive, but the flexplate picture shows what looks like a 28oz weight (based on typical weight length--I don't have a 50oz picture, but my 50oz flywheel weight is considerably longer). Also, if your internals on the 79 302 are stock, you will have a 28oz imbalance, requiring a matching flywheel.

Daniel

Rusty67 · Apr 19, 2009

The flyhweels should have the Ford part numbers cast into the non-friction side of the flywheels.

GNGREN · Apr 20, 2009

BornInAFord said:
Nothing definitive, but the flexplate picture shows what looks like a 28oz weight (based on typical weight length--I don't have a 50oz picture, but my 50oz flywheel weight is considerably longer). Also, if your internals on the 79 302 are stock, you will have a 28oz imbalance, requiring a matching flywheel.

Daniel

+1
It looks just like the one I pulled off my 67 a few weeks ago. You also might want to take care of that oil leak while you are working back there.

D.Hearne · Apr 20, 2009

Hg80Design said:
I am not going to be using the flexplate to run the car with a T5. I have both 28 and 50oz flywheels. I am unsure of which flywheel to use. I was told if I can identify wether my flexplate was 28 or 50 I could use the corresponding flywheel. sorry for the confusion

The only numbers on the existing flexplate are:

0170121

Thanks for the heads up I will pick up a pilot bearing as soon as possible.

Use the flywheel with the smaller counterweight. That bushing is backwards, unless it's a Boss 302 extended bushing. Bushing or bearing makes no difference, the input shaft spins at nearly the same speed as the flywheel 99.999% of the time. Just make sure to give it a shot of grease to keep it lubed.

Quick T5 install questions

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