Weber idf cleaning and rebuild
Stuff I used: Berrymans Chemical Dip, Gumout carb cleaner, little carb brushes, and a guitar string.
I have finally had enough of these carbs. So I thought I would go through the simple process I did for cleaning and rebuilding them.
I disassembled everything except for the throttle plates, throttle springs and lever.
Berrymans is fairly nasty stuff, so I recommend gloves and a mask, but more importantly do it outside.
It comes with a little basket for dipping the parts.
I started with all the small stuff – emulsion tubes, idle jet holders, etc. (Not the jets. I simply got new ones.)
20 minutes soak time was enough, then follow it with Gumout Carb Cleaner . The Berrymans will leave a fine gooey film . On the larger pieces a toothbrush with the carb cleaner is a good idea.
Then the larger pieces : top section (float , needle valve and seats removed, only the cast aluminum.
And the bottom large pieces. ~ 20 minutes each followed with Gumout.
I bought all new jets, needles and seats, that little return valve on the bottom on the bowl (forget what it is called – pump exhaust?) …
After that I went at all the pieces with a set of carb brushes . The pump jet hole is pretty small, so I cleaned it with a .018 guitar string.
Now this part was interesting to me.
I then took the carb base and sprayed Gumout into all the small holes I could find. It was a good way to see what hole leads where. Spray a hole in the top and then seeing the cleaner come out another hole in the bottom of the bowl gave me a much better idea of what goes on in the carb. (A lot better than trying to follow the book's description. I am gradually learning how these things work.)
But even better was seeing the cleaner come out of the hole on one side of the carb body but not the other. Finding those clogged passageways.
I did find a clogged Idle jet , clogged passage ways associated with the idle jets in the carb body, and a small crack in one of the jet holders….
I have been having problems with these blasted carbs since I got the car 3 years ago. They have been working OK, but they never felt quite right.
I always assumed something was varnished in the carb bodies since the car sat for so long unused in Miami. And I was correct!
After all that , (about of day of work), the car runs better than it ever has.
Not a big deal. Wear a mask and gloves , and do it outside.
Oh yeah. That blurry photo is a paper jig I made for measuring the float height and drop.