Dan,
I have a 72 and have also removed the air pump, gulp valve and plugged all
the holes. I don't have a problem like you mention, but in the past have
had my intake manifold work loose, which caused a leak and made it die and
run rough. The other problem that you might have is a leaky vacuum advance.
Mine leaks a bit and I haven't replaced it yet. If you have a vacuum tester
(makes a vacuum, not a gauge) you can check to see if the vacuum advance
will hold a vacuum. There is also the possibility that the plug(s) at the
ends of the intake manifold have developed a leak. I blew one completely
out once after I had set my valves and unknowingly stripped one of the nuts.
The nut loosened up and a large backfire blew the end plug right out onto
the firewall. Fortunately I was only a couple of blocks from home. Thought
I had really done it that time, but no harm was done.
When you are done with yours, come fix mine.
Dave 72 B
----- Original Message -----
From: "Dan Dougherty Sr." <globalrc@mindspring.com>
To: "MGS" <mgs@autox.team.net>
Sent: Wednesday, November 29, 2000 12:55 PM
Subject: 72 MGB-carbs, HIF type
> The patient is a 72 MGB with HIF carbs, most of the pollution is disabled,
> carbs rebuilt. Runs great, idles all day at a steady pace.....unless you
> drop the revs quickly. THE IT DIES....like when you come to a stop.
Restarts
> easily. Manifold vacuum fluctuates on a gauge. No vacuum leaks anywhere I
> can detect....been all over with spray. Any ideas? This one is bugging me.
> Yes, we soldered the butterflys. Dan
|