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Triumph TR6 - PDVA Lubrication

I'm ready to reassemble my PDVA with new O rings, courtesy of Steve Pike. I have not concluded yet DOT 4 or DOT 5 but need to lubricate the O rings on the shuttle in the PDVA. What do I do? Use red rubber grease. (Got a tub of it...anybody need any?) or is there another substance that'll work and not compromise the braking system? Or must this step await the decision on what brake fluid to use before I can complete the reassembly? Comments, suggestions, ideas all welcomed. Thanks.
db
Doug Baker

You use the fluid you will be using
DON KELLY

Don, Read my note. I DON'T KNOW what fluid I'll be using. You're telling me to wait until I decide standard DOT 4 or Silicone!!
db
Doug Baker

Yep, and I did read your note. I would just do it in Castrol now as I think the sili. won't be effected.
Though I did hear a report that Silicon is being phased out
DON KELLY

I have always used the red Girling brake grease for assembly, but I'm not sure if it is available any more. I know that TRF no longer lists it, Moss no longer lists it, Victoria British no longer lists it, same with Classic Sunbeam and a couple of others that I checked.

I did see that BPNW lists a brake grease:

http://www.bpnorthwest.com/.sc/ms/dd/ee/9764/Brake%20Grease%2025g%20Tube

I have no idea how it compares to the Girling stuff. Based on this little search exercise, here's to hoping what I have left is never misplaced and winds up being the proverbial lifetime supply.
SteveP1

Well, there's your answer Doug. It sounds like you have the magic stuff Steve speaks of.
Use the grease and Bob's your uncle
DON KELLY

Not nececssarily, I didn't say just any old tub of red rubber grease, I specifically stated the Girling red rubber grease. For this particular application it would probably work since the o-rings are EPDM material.

I would probably not use the big tub of red stuff directly on any Girling rubber bits though. I would want to make sure that there is no chemical compatibility issue as the Brit rubber goodies have traditionally been dicey in that area.
SteveP1

Sorry Steve, took it for granted that he had the Girling red
DON KELLY

Steve, Don,
What I have is Castrol Red Rubber Grease. Was in a plastic tub, but that shattered when I dropped in on the garage floor so now it's in a glass jar!!! And Steve, I've got LOTS of it so if you run short, give a holler. Got it from a supply house in England, so I hope that it's compatible with the o rings. Same place I got the copper grease antiseize. If you think not compatible, please advise. I used in on the brake calipers and it works wonderfully on my wife's swing on the deck which develops an annoying squeak of metal on metal one or twice a year.
db
Doug Baker

ALCON,
The Castrol Red Rubber Grease is a castor oil based lubricant primarily intended for rubber assembly where swelling of the rubber components is not desired. It's also Girling, at least according to some sources. It's available in 500ml tubs from Holden Vintage Cars in the UK. I got a tub, used about 0.5 ml so have a ton left, probably enough for the entire BB.
db
Doug Baker

Doug
You now how long ago it was I did my restore with the DOT 5.

It has never been changed (it could be said I am stretching this a little) I think if I had gone with DOT 4 it would have been changed by now and maybe more than once. I might also have changed a few brake parts by now.
If I had to do it again there is no question it would be DOT 5.

Use the red grease till you are ready for the fill.

Rick


PS I thought I convinced you to go syn-full many moons ago.
Rick Crawford

Don't do it,Doug. Chinese plot
DON KELLY

Rick, you'll have to forgive an aging mind. This one year adventure now going on five is causing recycle of some decisions long made!!
db
Doug Baker

This thread was discussed between 13/06/2011 and 17/06/2011

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