Hi, I need to change valve seals on my st1100L, because is consuming oil. Can you explain me how to do that? Thanks
St1100 valve seals
- Thread starter fpatrick007
- Start date
What is the mileage? I would do a compression test first to check piston rings and valve sealing. Not an easy job to change valve seals, you must remove the springs which means removing the whole head...unless you find a way to compress them from the top.
Given the current low prices of used parts for the ST's, I would imagine a good used set of heads to be less expensive than valve work on an existing set. Looks like they are running around $90 each ATM.
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=st1100+cylinder+head+-cover&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=st1100+cylinder+head
https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=st1100+cylinder+head+-cover&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=st1100+cylinder+head
OP
OP
1
About 92000 miles. First I will do a compression test as you say. Thanks
OP
OP
Thanks, maybe a good solution
also do a wet compression test.. seehttps://www.freeasestudyguides.com/compression-test-injecting-oil.html
Did you end up changing the valve seals ?
wjbertrand
Ventura Highway
When I changed the valve guide seals on my ‘93, there was no change in oil consumption. That bike tended to burn between 1/2-1 qt between 3000 mile oil changes. The problem must have been due to oil control rings as compression was in spec.
OP
OP
No, I am leaving it like it is. I dont have mechanic skils for that job and its to expensive for someone to do.