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MG MGB Technical - Weber DGV Carb Gasket

I need to remove the Weber DGV carb from my 1970 MGB to reset the throttle plates, as it idles at 1500 with the throttle cable detached! Does anyone have the Fel-pro catalog number for this gasket? I'd like to source it locally.

Thanks,


Peter Van Syckle
Peter VanSyckle

Peter. Not sure that Fel-Pro makes such a gasket. The distributor for the Weber, in the US, is Redline. I have dealt with them in the past and consider the quality of their customer support to be in line with that of Moss about five years ago ( a very bad time). You might contact them and see what they are willing/able to supply.

Moss has made a very big "turn about", due to people such as us complaining and people such as Craig Cody and Kelvin Dodd taking such complaints to their management.

Perhaps, Redline will be as receptive as Moss was to customer imputs.

I have made my views to Redline quite positively. Mayhap you, and other Weber owners, could do the same and we might see the same turn around in customer service that we have seen at Moss. Customers, with a valid need/complaint, and an interested middle level management can make a significant difference.

Les
Les Bengtson

Les,

Thanks for your comments. I'll give them a call and report back.

As a continuation to my original post, the idle spped on this Weber has always been fast, and with the throttle cable disconnected it idles at 1300-1500 rpms. I'm assuming that either the throttle plates are off center and keeping the throttle open, or the linkage plate has somehow slipped and holds the throttle open by hitting the manifold or such,(not readily apparent).Timing seems fine, and it runs well. Since you have a lot of experience with Webers, do you think I'm on the right track?

By the way, I recall that one of your daughters is getting married. Please extend our best wishes to her and her fiance for a life of rapid accelleration, smooth idles, and a minimum number of bumps!

Peter
Peter Van Syckle

Peter. Many thanks. The wedding using wedding cars tonbridge was yesterday and today is a day of clean up and decompression for the wife and I.

As to your question, exactly which model do you have? Most of my experience is with the DGV, which has the manual choke. There is a fast idle cam, which never seems to work all that well, which affects the basic idle speed of the carb when engaged. If the linkage is not correctly adjusted it could hold the throttle plate open even when the idle adjustment screw is fully backed off.

It is also worthwhile to spray some carb cleaner around the base of the carb and see if there are any air leaks present.

The carb is only a minor bear to remove from the intake manifold. If neither of the above solve the problem, you might pull the carb and make sure the throttle plates will shut fully when the idle adjustment screw is fully backed off (i.e. out of contact with the throttle mechanism).

Les
Les Bengtson

Les,

Congratulations on the wedding. I remember telling my wife 21 years ago that the secret was not getting to the wedding day, it was getting to the day after the wedding.. I trust that all went according to plan.

The idle on the Weber is still high--about 1100 rpm. It rained like the dickens here today, so I did pull the carb off the manifold and it seemed as though the throttle plates were not quite closing fully (I could see a sliver of light between the plates and the body. I loosened up the screws, then let the plates seek their own best orientation, which still allowed for a little light to show around the edges. Buttoned everything back up with the old gasket intact ( new one is in order, but my impatience prevailed), and found no improvement with the idle speed screw fully backed off. The excess throttle cable is not causing the throttle lever to hang up. I even filed away a bit of the lower portion of the lever to provide additional clearance between it and the intake manifold.

I think the fast idle link may be the next likely culprit. Is there a means to adjust it?
Peter VanSyckle

Peter. For some reason, it was thinking you had the electric choke version. Hence, spent some time digging out my example. Rereading the post says you have a DGV, the manual choke model.

The electric choke model has a fast idle adjustment screw associated with the carb.

The manual choke version only has a cam and a linkage associated with the fast idle circuit. Have not played with it to try to adjust it since it does not get really cold here.

One problem I found with all of our manual choke Weber DGVs was that the arm that the outer sheath of the choke cable is clamped to interferes with the function of the throttle attachment plate that Redline supplies. This is the curved plate with several holes in it which bolts to the throttle shaft and you insert the piece to thread the inner throttle cable connects to. On all of our cars I had to remove the choke clamp and bend the arm upwards about 1/8" so it would not interfere with the throttle mechanism. You might wish to check this on yours.

Les
Les Bengtson

Hi,

Try that place:

http://www.royze.com/fuelsystem.htm


cheers,

JGC
Jean Guy Catford

The more general site:

http://www.royze.com/
Jean Guy Catford

Jean Guy:

Merci bien!

Peter
Peter VanSyckle

My pleasure.

JGC
Jean Guy Catford

This thread was discussed between 24/06/2006 and 30/06/2006

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