Weber 40IDA - Where to buy parts? Leaky accelerator pump cover

[Locker537]

Thank you Paul, Larry, and John for your help and guidance.

After exchanging emails with Larry and getting a rebuild kit and the necessary parts ordered, I felt comfortable tackling the job of flattening the covers. The only task I've done on Weber carbs is cleaning the idle jets. In fact, this is the first car that I have owned that is carbureted.

Removing the covers is straightforward. I did need to remove the accelerator linkage bracket, or at least loosen it, to gain the clearance to remove the cover. Once at the workbench, I used a granite sample from when we added a breakfast bar to the kitchen as a known flat surface. I checked the granite it starrett straight edge.

The cover is clearly bowed. You can see light shining through.

I "painted" the surface to be sanded with black Sharpie. This helps me see my progress as I sand the cover using 400 grit sandpaper.




I re-assembled and checked for the leak by running the fuel pump, working the accelerator, and waiting over night. The leak is very gradual seepage, and the next morning it was evident my work did not fix the issue.

I disassembled again and checked the pump body as well as the cover. The pump body had a slight "rock" to it when checked on the granite block. I repeated the process and sanded the body and sanded the cover a little bit more.


Again, I reassembled, ran the fuel pump, worked the accelerator, and waited to see if there was any leakage. Fortunately, there was not.

I assumed that the gas that I essentially dumped into the engine would have evaporated over a couple days, but when I started the car for the first time I was greeted some about a minute worth of white wispy smoke. I probably should have pulled the plugs to allow the gas to evaporate, or figured out a different way to test for leaks, but I did not want to start the engine with a potential leak.

Car ran fantastic though! Again, thanks for all the help.

(Hmm, photo uploads to pelican still don't see to be working)

[colingreene]

I have gotten a lot of parts from Pierce manifolds.

[bertsboat]

Larry, you OK? Are you still in business and if not where do we get Weber parts now?
Hope all is well and Merry Christmas!
Bert with the Gulf Blue 74 Carrera

Originally Posted by l_turn9

Thanks for suggesting they contact me, Paul.

Locker537 - I can provide any IDA parts you might need, from diaphragms to complete pumps as well as rebuild kits, jets, venturi's, etc. If the cover is only warped a small amount, using a mirror or small sheet of glass, so you will know you are working on a flat surface, then do as another Pelican suggested and work with 1000# (some people like different grits) sandpaper to flatten the cover. Work slowly, checking your progress every few minutes.

All of the parts you might need, if any are damaged, are readily available. Unless you have a unusual situation, the pumps usually come apart pretty easily, but we never know what people might run into.

re the danger of driving with leaking pumps - fire is possible - which would change a small inconvenience into a major repair job.

LarryT
Youroil.net