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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Valvetrain: Cams, Lifters, Pushrods, Rockerbox, Valves, Springs, Guides, Seals, Retainers, Seats » Valve Guide Seals « Previous Next »

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Rootintootin
Posted on Thursday, November 15, 2007 - 08:10 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'm finally getting around to replacing my guide seals. Both intakes are leaking pretty heavily. The rear especially, there was a 1/2" thick flow of crusty black goo all the way from the end of the guide in the port all the way to the valve seat. I was using about a qt. in 1K miles. When I pulled the seals, there were pools of oil under both lower collars.
The seals are a straight HD item, I think from '02 on up BT. I bought 2 from the local non-Buell HD dealer before I got a full engine set from a friend through the Drag catalog, which has Cometic Blue Viton seals, which I plan to use when I put the motor back together. The originals are black, don't know if by design or use, stock replacements are orange and Cometics are blue. A little more metal in the blues and they appear to be bonded to the lower collar.


Assorted Valve Guide Seals


Has anybody had any experience with the blue viton seals? My stock seals seemed to start leaking at about 12-14K miles
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Xldevil
Posted on Thursday, November 15, 2007 - 09:02 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I´m riding the blue viton seals as well.
I bought them from NRHS and they are made by James.
So far I´m satisfied but I can say nothing about their long time performance and reliability.I put only 1000Km on my speedo since the assembly.
I´ve had the same problems you mentioned with the OEM seals.
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Alessio66xb12r
Posted on Wednesday, November 21, 2007 - 04:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i used the black type on a 1200 sportster conversion i built few months ago and i noticed the same problem (oil leaking).
i'm running the blue viton type from "cometic gaskets" on my 88"xb and they seems to work better ( no leaking)...its all i can say but.. consider that the blue set is new the black one on the sportster has few thousands miles on it.
anyway i think the blue viton is better
bye Alessio
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