scottbarbee
New User
Can anyone tell me if a w6 head was supposed to have valve seals
- Thread starter scottbarbee
- Start date
rustyfarmall
Well-known Member
Originally, No valve seals.
Janicholson
Well-known Member
None originally, but putting them in (Teflon type) is a very good idea. Even the umbrella seals are better than nothing Jim
Hendrik
Member
Jim, you and many others recommend mounting valve seals. Reasons probably being less oil consumption and reduced blue smoke due to worn valve stems and valve guides.
However, does mounting valve seals not make the wear problem worse? I mean, depriving the valve stems and guides from engine oil can only increase the wear rate, can't it?
Thanks, Hendrik.
However, does mounting valve seals not make the wear problem worse? I mean, depriving the valve stems and guides from engine oil can only increase the wear rate, can't it?
Thanks, Hendrik.
Janicholson
Well-known Member
Great question.
The seals (teflon) are a regulated oil feeding system. The teflon ring moves inside a groove in the Buna N part of the seal meetering specific amounts of oil into the guide. All auto makers use the regulated seal style. The umbrella style is much more casual and is just dependent on splash and mist to lube the guide. The umbrella style also end up expanding and floating on the stem as they get old. Not much help then. Jim
The seals (teflon) are a regulated oil feeding system. The teflon ring moves inside a groove in the Buna N part of the seal meetering specific amounts of oil into the guide. All auto makers use the regulated seal style. The umbrella style is much more casual and is just dependent on splash and mist to lube the guide. The umbrella style also end up expanding and floating on the stem as they get old. Not much help then. Jim
rustred
Well-known Member
none from factory and totally not needed. when the head is redone which includes new valve guides with a clearance of .0015 you will not be getting oil into the combution chamber. they do wear but oil consumption is not noticable due to guides. if the engine is using oil its overhaul time.
its not like a 350 cid chevy engine with hyd. lifters pumping oil over the valves. as this is where the seals are used. these old tractors dont have that much oil flying around up upstairs.
if you dont think so then pull a valve cover off a w-6 and a 350 chev and start it then your question is answered.
its not like a 350 cid chevy engine with hyd. lifters pumping oil over the valves. as this is where the seals are used. these old tractors dont have that much oil flying around up upstairs.
if you dont think so then pull a valve cover off a w-6 and a 350 chev and start it then your question is answered.
Janicholson
Well-known Member
Thanks. Real technology is a great idea put to use. Jim
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