Petcock rebuild info.

[lee]

In a recent post I think by Stanly Steamer the question of different size holes in the spacer that
holds the valve seal and the vacuum diaphragm came up.  Maby everyone already knows this but
I figure it can't hurt to say it.  There is no difference in the size or shape of the holes in the spacer.
However there is a difference in the size of the nipples on each side of the vacuum diaphragm.
The side with the large nipple goes into the spacer.  The spring perch connects to the side with
the small nipple.  I don.t think the diaphragm  would even stay in the spacer if it was put together
wrong, but it would certainly pull out in short order if it did.  Hope this helps someone.

[hubcapsc]

In a recent post I think by Stanly Steamer the question of different size holes in the spacer that
holds the valve seal and the vacuum diaphragm came up.  Maby everyone already knows this but
I figure it can't hurt to say it.  There is no difference in the size or shape of the holes in the spacer.
However there is a difference in the size of the nipples on each side of the vacuum diaphragm.
The side with the large nipple goes into the spacer.  The spring perch connects to the side with
the small nipple.  I don.t think the diaphragm  would even stay in the spacer if it was put together
wrong, but it would certainly pull out in short order if it did.  Hope this helps someone.

It sure helps me! Thanks!... I knew that the big diaphragm flap was different on each side, so I always
try to "put it back like it was"... If you are correct (and I bet you are) this information makes it
possible "get it right" without having to remember how it was and without searching
the tech archives for pictures... just pay attention to the nipples...

-Mike

[Stanley Steamer]

In a recent post I think by Stanly Steamer the question of different size holes in the spacer that
holds the valve seal and the vacuum diaphragm came up.  Maby everyone already knows this but
I figure it can't hurt to say it.  There is no difference in the size or shape of the holes in the spacer.
However there is a difference in the size of the nipples on each side of the vacuum diaphragm.
The side with the large nipple goes into the spacer.  The spring perch connects to the side with
the small nipple.  I don.t think the diaphragm  would even stay in the spacer if it was put together
wrong, but it would certainly pull out in short order if it did.  Hope this helps someone.

It sure helps me! Thanks!... I knew that the big diaphragm flap was different on each side, so I always
try to "put it back like it was"... If you are correct (and I bet you are) this information makes it
possible "get it right" without having to remember how it was and without searching
the tech archives for pictures... just pay attention to the nipples...

-Mike

I guess that might explain a lot!!.....I normally pay VERY close attention to nipples...just not ones on a diaphragm....DOHHH, you know what I mean.... ... ...