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Valve stem seals bad after 15.000 Km?
- Thread starter 240L31
- Start date
I have the Ford seals mentioned in this thread.
But I might not have done 15000 km.
Rings are a possibility too.
Improved L6 Valve Stem Seals
As discussed in a previous post, I'm using Schneider's #68022 Spring set as sold by MSA on my new P90 head. This spring/retainer combination is advertised to support in excess of .600" lift before coil bind, with reasonable valve seat pressures. However, this doesn't take into account the fact th...
forums.hybridz.org
But I might not have done 15000 km.
Rings are a possibility too.
Has the engine been rebuilt during your ownership?
My first 240 smoked badly on overun. Thought valve guides/seals but the engine was knackered. That started me on the modifying route and spending too much.
My first 240 smoked badly on overun. Thought valve guides/seals but the engine was knackered. That started me on the modifying route and spending too much.
240L31
Club Member
Wouldn't be continuing smoke be a symptom then?
The cylinders head wasn't rebuild by me but I installed it. So I don't really know which seals were used.
I think high vacuum with deceleration can draw oil in past the rings too, but aiui valve stem seals most likely.
You can probably change the seals without taking the head off, although might be easier to take it off anyway.
Ian Patmore
Well-Known Forum User
For me, a must to use the Ford valve seals for any performance L series and for times with long periods of not being used. The Viton seals are less likely to deteriorate, and are a shorter install height, so helps with any issues with a cam with some lift.
Can be ripped when installed, so care, I think they come with an installing sleeve.
Can be ripped when installed, so care, I think they come with an installing sleeve.
Huw
Club Member
Ford ones are good. Used a Felpro set last time around however, they come with a little plastic sleeve to stop the seal getting nicked as it passes over the collet slots. Easy to do the seals in situ with out removing the head If you need to do so.
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240L31
Club Member
I removed one valve stem Seal today. It's complete garbage, rock hard and almost 1mm widened.
Left is the one I removed, middle Victor Reinz replacement which I couldn't get seated on the valve guide and right the Ford viton seal which I found very easy to install.
I am quite confident that this will solve my issue.
Left is the one I removed, middle Victor Reinz replacement which I couldn't get seated on the valve guide and right the Ford viton seal which I found very easy to install.
I am quite confident that this will solve my issue.
