carb rebuild question, throttle bearings Options

[tat2dphreak]

ok, my set of weber 40s... they are old(built in the early 80s by his estimation). my mechanic cannot replace the throttle bearings and thus, they do not idle right once the engine gets warm, it's like they are always slightly "cracked" open, when warm.

is there a place that can rebuild these and make them "new" again? or is it time to start carb shopping?

fron what I understand, the new carbs have a plate on the front, and one on the back that can be removed to replace the throttle shaft bearings, but this set only has 1 plate, so the bearings are not replaced(at least by normal means)

[tat2dphreak]

since the car is dry-docked, maybe I'll try to pull the shafts and check and see if the bearings are fitting tight... are there any "watchout" things that might keep me from getting it back together correctly?

[Van]

since the car is dry-docked, maybe I'll try to pull the shafts and check and see if the bearings are fitting tight... are there any "watchout" things that might keep me from getting it back together correctly?

It's pretty straight forward.

Remember to be careful not to bend that throttle shaft - it's a bitch to straighten! That also goes for the end nuts. If you can, hold that round washer part (and the linkage arm at the other end) with pliers so you don't put a "twisting" motion on that shaft.

When you put it together, remember the accelerator pump linkage... the first time I put a carb back together, I forgot it and had to pull the throttle shaft out again.

When you put the butterflies back in, slide both into the shaft (they only go in 1 direction - on my 44s, the stamping (78 degrees) is visible from the bottom (if I recall). it'll be obvious if it's not right, because the screw holes won't line up. Anyhow, put the screws in loosely, make sure you "close" the throttle so the butterflies are seated properly in the bores, then tighten the screws. It might take a few tries - so be patient. When you get it right, they close with a most satisfying "snap"! Also, you can't see any light around the edges when you hold it up to the light and try to look through.

Obviously, if you feel you need to force something, you might be doing it wrong - so stop and get a 2nd opinion.

Let us know how it goes!

Here are some pages you might find useful:

http://www.rescue912.com/spider/WeberIDF_Rebuild/

http://www.aircooled.net/gnrlsite/resource...8idarebuild.htm