The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: andy2565 on 01.02. 2011 18:22

Title: seals
Post by: andy2565 on 01.02. 2011 18:22

does anyone fit valve stem seals to their bronze guides,if so is it just to the exhaust guides ?

Title: Re: seals
Post by: renos-a10 on 01.02. 2011 18:45

first time i hear that.i think you can't.

Title: Re: seals
Post by: chaterlea25 on 01.02. 2011 19:20

Hi Andy,
The "normal" thing is to fit seals to the INLET valve guides,
 Not heard of doing it on the exhaust side  *conf*
Some guide sets are machined to take Triumph 650/750 seals, if not its easy to do in the lathe
HTH
John O R

Title: Re: seals
Post by: andy2565 on 01.02. 2011 20:02

cheers,i always remember someone telling me they fitted seals,why not both sides,is it to do with the exhausts running hotter ?

Title: Re: seals
Post by: BSA_54A10 on 02.02. 2011 10:29

The inlet sucks ( oil down the guide )
the exhaust blows ( combustion gasses into the head )
No need to seal the exhaust.