Triumph Sports Cars

engine swaps and other performance upgrades, plus "factory" V8s (Stag and TR8)

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cdooley
Charlie Dooley

(1 posts)

Registered:
06/21/2011 06:51PM

Main British Car:


Positive valve seals on the TR8 V8
Posted by: cdooley
Date: June 21, 2011 07:00PM

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?
Triumph TR8.JPG


mgb260
Jim Nichols
Sequim,WA
(1958 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: Positive valve seals on the TR8 V8
Posted by: mgb260
Date: June 21, 2011 07:11PM

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.


bsa_m21
Martin Rothman
Vancouver, Canada
(204 posts)

Registered:
01/06/2009 11:41AM

Main British Car:
1980 TR7V8 Rover 3.9L

authors avatar
Re: Positive valve seals on the TR8 V8
Posted by: bsa_m21
Date: June 22, 2011 11:11AM

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.


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(5735 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Positive valve seals on the TR8 V8
Posted by: BlownMGB-V8
Date: June 22, 2011 11:39AM

I like teflon seals on the intakes and umbrella seals on the exhaust. Even valve guides need a little lubricant.

JB


roverman
Art Gertz
Winchester, CA.
(2973 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: Positive valve seals on the TR8 V8
Posted by: roverman
Date: June 22, 2011 12:23PM

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.


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