Subject: Re: Petcock gaskets?
Author: Bruce Giller
Date: Feb 21, 2002, 8:01 AM
Post ID: 1709691291
Fred,
I've made these from a sheet of Viton (1/8" thick, I think) and used
hole (hollow) punches (3/4" and 7/32") to make the appropriate holes in
the right locations using an old gasket as a template. Mine have been
in my bike over a year with no leaks. My petcocks are the aluminum
sugar cubes.
I do have another used gasket that is different (Rich P., are they from
a chromed brass unit?) - different thickness and location of the two
holes. Looks more like the dreaded 'smiley face'. Tomorrow I'm off to
the same supplier of my Viton to see if they have some thinner Viton so
that I can make some of these.
I can take a digital picture of both gaskets and sent them to you and
you can see if they are like yours. I've got a bunch of spare
aluminum-style gaskets for $.50 each. If I find some thinner Viton, the
chromed-style will be the same. I'm trying to make enough for a one-way
ticket to Dublin for some fresh Guinness.
re: leaking rear main seal. Now I believe, after taking everything
apart, that my rear main seal was never leaking at all. All the oil
that was dripping out of the clutch drain slot was coming from the hose
that connects the crankcase to the air breather box. The OD of the tube
is 18 mm (.70") and the connecting hose is 3/4" (.75") and my hose
clamps apparently did not seal all that well even though they were
snugged down tight. Visited about 5 auto parts hoses along with foreign
car dealers looking for some oil-resistant (basically fuel line) 18 mm
fuel line with sad results. My current idea is to wrap plumbers Teflon
tape around both tubes to take up the extra .05" to prevent any more leaking.
But it was fun popping off the rear main bearing carrier with my never
used harmonic puller. It was much harder getting the seal out of the carrier!
Bruce
'72 Eldo
Fred Sahms wrote:
| Somebody on the list (I think) made up some of these. There are two different sizes, one for the aluminum sugar cubes and one for the chromed brass sugar cubes. I have a pair of both, and would prefer to use the chromed brass ones as they're prettier. Mark at MG Classics had some of the gaskets but is out. Anyone know where they came from? |