Valve stem seals
05-13-2002, 10:16 PM
#2
Melting Slicks
Member Since: Dec 2000
Location: Union Ontario
Posts: 2,635
Likes: 0
Received 0 Likes
on
0 Posts
Re: Valve stem seals (Armstrong)
There are many choices: o-rings, umbrellas, and Crane makes a positive lock style seal that doesn't require machining.
The think the final ones are the best but have a set of umbrellas installed because I wanted to get my heads reassembled to get my engine back together.
The think the final ones are the best but have a set of umbrellas installed because I wanted to get my heads reassembled to get my engine back together.
05-13-2002, 10:28 PM
#3
Advanced
Member Since: Oct 2000
Location: MHT N.H.
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
Re: Valve stem seals (MikeC)
Just ordered a set of viton seals. Better than umbella seals,those are the best to get without machining the heads. Have heard very good comments about them on this forum. $14.95 plus s+h. Will give phone # and part # if interested. John
05-14-2002, 05:53 AM
#5
Safety Car
Re: Valve stem seals (Armstrong)
Definatly get positive locking seals. The ones that lock down over the guide. Might be a good idea to check the outside diameter of all your guides before ordering. If anyone has changed guides in the past then the O.D. could have changed. I had to buy two sets for one particular engine of mine because someone had replaced the exhaust valve guides with ones that were different diameter than stock. I suppose if they've never been changed then just order for your specific aplication. Nevertheless its a good idea to make sure what you have before ordering. There are a # of different sizes out there in use.
05-14-2002, 08:17 AM
#6
Advanced
Member Since: Oct 2000
Location: MHT N.H.
Posts: 85
Likes: 0
Received 0 Likes
on
0 Posts
Re: Valve stem seals (Jvette73)
Jvette73 is correct on the getting right size. Got mine from Competition Products. Can call their tech line and make sure you are getting the correct size.Tech line #1-920-233-1355. I have s/r world tourqer II heads which take the 11/32 size. Part #5325. Good Luck! John :D
05-14-2002, 03:31 PM
#7
Burning Brakes
Re: Valve stem seals (Armstrong)
Get positive lock seals. I got felpro seals from Auto Zone and they looked exactly like the seals I removed, which I believe to be original seals, but cannot be certain. The exhaust seals are different from the intake seals. Exhaust are kind of like a one piece plastic/teflon coated type seal, while the intake seals are the positive seal with the rubber clamped on with steel snap rings.
These seals were exactly same as I removed, and installed on my 624 heads without any problem what so ever. In addition, to these seals, you also install the small O-ring type seal on the valve stem.
These positive seals appear to be much better / and perhaps longer lasting than the black rubber umbrella seals.
These seals were exactly same as I removed, and installed on my 624 heads without any problem what so ever. In addition, to these seals, you also install the small O-ring type seal on the valve stem.
These positive seals appear to be much better / and perhaps longer lasting than the black rubber umbrella seals.
