valve stem seals popping off
Posted: Sat Apr 18, 2015 1:32 am
hi,
trying to get rid of the blue smoke-problem, i changed the valve stem seals. While dismantling, i noticed that a few stem seals were loose on the valve, i.e. not seated on the valve guide any more.
I was confident, that most of the smoke-problem would have been gone after fitting new stem seals, namely these:
http://www.onlinecarparts.co.uk/reinz-7440095.html
I mounted them with the valves staying in the head and pressurized cylinder, but noticed, that they would start to to slip off the valve guide a bit, soon after they were seated at the correct height. Why the hell would they not want to stay on the valve guide? trapped air?(very unlikely... )
However, i finished the work double-checking that they were all seated correctly before reassembling the valvetrain, etc.
In the first minutes of the engine running, i was happy because there was no blue smoke any more, but it came back after a few kilometers
I'm going to have a look at the stem seals again, repeating the job if necessary.
Has anyone have had similar problems? Any tips how to get them seals staying on the valve guides? (maybe i will try to "glue" them in using high-temp sealant)
cheers
martin
trying to get rid of the blue smoke-problem, i changed the valve stem seals. While dismantling, i noticed that a few stem seals were loose on the valve, i.e. not seated on the valve guide any more.
I was confident, that most of the smoke-problem would have been gone after fitting new stem seals, namely these:
http://www.onlinecarparts.co.uk/reinz-7440095.html
I mounted them with the valves staying in the head and pressurized cylinder, but noticed, that they would start to to slip off the valve guide a bit, soon after they were seated at the correct height. Why the hell would they not want to stay on the valve guide? trapped air?(very unlikely... )
However, i finished the work double-checking that they were all seated correctly before reassembling the valvetrain, etc.
In the first minutes of the engine running, i was happy because there was no blue smoke any more, but it came back after a few kilometers
I'm going to have a look at the stem seals again, repeating the job if necessary.
Has anyone have had similar problems? Any tips how to get them seals staying on the valve guides? (maybe i will try to "glue" them in using high-temp sealant)
cheers
martin