[6pack] vacuum leaks

[Navarrette, Vance]

	Mark:

	Oooo, very astute. Wish I thought of that one. Yes, the vacuum retard might
be on its way out, and could indeed cause an unsteady idle. To test this idea
disconnect the vacuum line to the dizzy and cap it. The idle should be steady
and fast with the vacuum line plugged. The retard drops the idle by about 400
RPM when functioning, if I remember correctly.
	BTW, the later vacuum retard is NLA from the big three, last time I checked.
However the earlier vacuum retard was still available. If you do need a later
vacuum retard capsule, you can order the earlier one, and hacksaw the threaded
rod off of the unit. Other than the presence of the threaded rod, the old and
new retard capsules are identical, so cutting the rod off the earlier one
gives you a drop in replacement for the later style. Ask me how I know.

	Vance

    Vance Navarrette
    http://www.triumphowners.com/832

-----Original Message-----
From: 6pack-bounces at autox.team.net [mailto:6pack-bounces at autox.team.net] On
Behalf Of Mark Hooper
Sent: Friday, May 07, 2010 10:56 AM
To: 'oliver'; '6 Pack list'
Subject: Re: [6pack] vacuum leaks

Hi Oliver:

Are you sure it is not the vacuum retard? When there is only one unit on the
distributor, it is a retarding unit so far as I know. My idle was too high
until I replaced the part and then would idle down to the mid hundreds of
rpm.
I don't know if one can have an intermittent leak in the dizzy diaphragm. If
not, then one could do worse than looking at the brake booster and the input
to it.

Cheers,

Mark
1972 TR6 - triple Stromberg.