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Valve Stem Seals - Dont Fit.


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Was replacing my stem seals today and the new ones do not fit snugly. They slide on and can slide right off again. This is not right. I purchased the set from FCP, called them and they said that the ones I have are the ones that everyone gets... essentially they are the correct part number.

I can read the numbers on the one that came off the head, they are: 866 NW 7-9.8/13.2-9 PFP 6069

Assuming the important part is: 7-9.8/13.2-9

That number translates to: 97531278 ...cant find anything that cross references other than one useless site here:

FCP parts I have: 027109675

Has anyone run into this? I am stuck

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There's only two styles (but different compounds of each), for early large stem & later smaller stem valves. Do you mean they are not snug where they press onto the guide, or around the valve stem? Either way, if they are loose, they are no good. I'd ask them to send another set.

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John I know this is a stupid question, and I feel like an ass for asking but....

are you sure your getting the seals all the way down? Using a deep socket, and sometimes a small mallet To tap them till they lock in?

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John I know this is a stupid question, and I feel like an ass for asking but....

are you sure your getting the seals all the way down? Using a deep socket, and sometimes a small mallet To tap them till they lock in?

Ha, fair question. Yes. I can set it on the end/tip of the guide, push it on with zero effort and pull it back off again. I have taken the head to two local shops and they wanted to test it too...same results. They agree the seals dont fit.

Lucky is sending me some to try. Hopefully they will work.

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Sucks dude, i got mine from Oreilly auto parts store they where made by rainz and i payed 8 bucks for all 20 also greens. They where a snug fit tho once u get them in you wont take them out without damaging them. 10k miles holding up good so far. Tognottis also has them, thats where i got all my rebuild parts for my engine.

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