Anonymous

Rocker cover gaskets for v8

The all purpose forum for any TR7/8 related topics.
Post Reply
Brianc
Rust Hunter
Posts: 203
Joined: 15 Nov 2015 20:59

Rocker cover gaskets for v8

Postby Brianc » 19 Aug 2018 20:44

Going to fit my newly polished covers - any advice on the best type of gaskets to use?

Also what sealent if any would you use?

Many thanks

FI Spyder
TRemendous
Posts: 8790
Joined: 03 Jul 2006 19:54
Location: Canada

Re: Rocker cover gaskets for v8

Postby FI Spyder » 20 Aug 2018 15:34

Some people swear by silicone gaskets, some people swear at them. Don't know why they work for some and not others. Speaking for my experience on the slant 4 (a valve cover gasket is a valve cover gasket) I've used the original cork gasket, sprayed weak side (meaning the valve cover side) with red tacky gasket sealer from a can and left the engine side bare. Never had a leak in 11 years. This year I pulled the valve cover to repaint it and replaced the gasket with another cork gasket using the same spray. After the first use I had a leak from the rear. What I should have done is taken it through a heat cycle and retightened when hot. I did this after first check (run) after noticing the leak and the leak stopped, not reappearing.
- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 2013 Volt - Yellow TCT

darrellw
Swagester
Posts: 550
Joined: 25 May 2011 18:44
Location: USA
Contact:

Re: Rocker cover gaskets for v8

Postby darrellw » 20 Aug 2018 19:00

I use the rubber Land Rover gaskets.

They have a nice feature of having a metal spacer to keep you from over tightening them.

They have a not so nice feature of a metal spacer that can fall inside your engine and do a number on your cam.

That said, I still use them, just now make sure all of the spacers are accounted for. I glue them to the rocker cover with RTV.
Darrell Walker
66 TR4A IRS-SC CTC67956L
81 TR8 SATPZ458XBA406206
Vancouver, WA, USA

saabfast
TRiffic
Posts: 1845
Joined: 03 Feb 2006 08:17
Location: Royal Tunbridge Wells

Re: Rocker cover gaskets for v8

Postby saabfast » 20 Aug 2018 19:35

I do it the old fashioned way on a slant 4, cork gasket with grease 'seal'. Always a bit worried about RTV, on Saab engines you always use anaerobic sealant (Loctite 518 or equal) as bits of RTV can break away and block things. As I understand it the anaerobic stuff only goes off in the joint (metal to metal on Saab sumps etc, no gaskets) and any minimised excess breaks down in the oil as it does not set, although the oil is fully synthetic which might make a difference. It is pretty expensive although you need very little in the joint.
Alan
Saab 9-5 2.3t Vector Auto Estate Stage 1
Saab 9-3 2.0 SE Turbo Convertible
'81 TR7 DHC
Image

Cobber
TRemendous
Posts: 2319
Joined: 19 Sep 2005 10:03
Location: Australia
Contact:

Re: Rocker cover gaskets for v8

Postby Cobber » 21 Aug 2018 04:16

I don't appove of the fashion of using bloody silicone muck all over engines, as the excess can ouze out and break off, travel though out to lubriction system and block off something important. I've seen it happen! :shock:

On cork gaskets I use permatex No. 3 aviation grade non-hardening gasket sealer.
I paint it onto the gasket with the brush attached to the lid of the bottle.
As it's non-hardening you can get the gasket and sealant off with realative ease when next you need to pull the assembly apart again......no need for the jack hammer!
Image
https://www.permatex.com/products/gasketing/gasket-sealants/permatex-aviation-form-a-gasket-no-3-sealant-liquid-3/

I see that there are some health warning on this stuff now
Carciongenic and reproductive, so wear gloves etc and don't paint it on your pecker, but why would you.....it's non-hardening! :lol:
"Keep calm, relax, take a deep breath, focus on the problem & PULL THE BLOODY TRIGGER"

'80 Triumph TR7.
'73 Land Rover (Ford 351. V8).
'97 Ford Falcon Longreach 'S' ute,
'98 MG-F.
'69 Ford F250 pickup.
'83 Jaguar XJ6 Sovereign S3.

DNK
TRemendous
Posts: 2711
Joined: 16 Sep 2007 03:49
Location: USA
Contact:

Re: Rocker cover gaskets for v8

Postby DNK » 24 Aug 2018 14:14

darrellw wrote:I use the rubber Land Rover gaskets.

They have a nice feature of having a metal spacer to keep you from over tightening them.

They have a not so nice feature of a metal spacer that can fall inside your engine and do a number on your cam.

That said, I still use them, just now make sure all of the spacers are accounted for. I glue them to the rocker cover with RTV.


Ya can't have your cake and eat it too!!
Don
Stick a Wedge In It
80 TR7 V8 Kick in the pants

Post Reply

Who is online

Users browsing this forum: No registered users and 64 guests