BritishV8 Forum

General Category => Triumph Sports Cars => Topic started by: cdooley on June 21, 2011, 07:00:21 PM

Title: Positive valve seals on the TR8 V8
Post by: cdooley on June 21, 2011, 07:00:21 PM
Looking to install positive seals on my 1981 TR8 to prevent that cloud of smoke when you start up or change gears. Anyone have any luck with this?
TriumphTR8.JPG
Title: Re: Positive valve seals on the TR8 V8
Post by: mgb260 on June 21, 2011, 07:11:03 PM
Not TR8 but, have had good luck with Viton Perfect Circle type valve seals. Look on Ebay for Viton seals, come in different sizes. Guides need to be cut down. Mr Gasket makes a cutter for your hand drill. I just put them on the intake and use the O rings on the SBC exhaust valves.
Title: Re: Positive valve seals on the TR8 V8
Post by: bsa_m21 on June 22, 2011, 11:11:35 AM
Install new rover v8 (3.9, 4.0, 4.2) intake valves guides and seals.  Cheap and easy to do as they are a straight exchange. Change your exhaust guides while you are at it as they are probably worn also, but don't worry about seals. Intake sucks oil down the guide, exhaust blows up,  not down the guide.

M.
Title: Re: Positive valve seals on the TR8 V8
Post by: BlownMGB-V8 on June 22, 2011, 11:39:44 AM
I like teflon seals on the intakes and umbrella seals on the exhaust. Even valve guides need a little lubricant.

JB
Title: Re: Positive valve seals on the TR8 V8
Post by: roverman on June 22, 2011, 12:23:08 PM
Charlie, Valve seals will not replace worn away guides. Putting new seals on worn guides, will cause short term failure of the seals.  Good Luck. roverman.