Rebuilding Webbers on 2.0

[BReyes]

Just bought Wayne's book.

What should I do to make sure it's done right. What tools do I buy, and which processes should I put priority on to ensure success. Or should I take to Dave White to ensure they provide the highest performance, and they're jetted right?

Thank you.

Regards,

[jpnovak]

Bernard, First you need to disassemble the carbs. There are exploded diagrams on the Pelican tech articles. I suggest doing one side at a time. remove the jets and such and note their numbers and sizes.

Once the bodies are torn down, clean them in a parts washer or other solvent. you can use simple green or other water based cleaner but don't soak the bodies for long periods of time without washing them thoroughly. Use an air compressor to blow out all passageways. Keep washing/blowing until they all come clean. Do the same with all the jets and internal parts.

If the throttle shafts are tight (slight click is OK, rocking is not) they can be reassembled with new gaskets and correct jets. Wayne's book has a good section on setting the float bowls and tuning. Good luck. Let me know if that engine fires.

[911pcars]

From past threads, some theorize Simple Green is suspect when used with aluminum (do a search). I'd suggest regular carb. cleaner. It's pretty potent. An overnight soak, then rinse with hot water along w/compressed air should result in a like-new finish.

Sherwood

PS: I also recommend the Weber Carb book by Pat Braden for pics and good info.

[BReyes]

the (exploded) diagram in the 101 projects for 911 book is miniature. The print is pretty small too (and I have good eye sight). Haven't had a break from work to play with the carbs yet.

I know they are stuck, and will be looking closer at them, just don't know how soon.

Oh I see a recommendation for a Pat Braden book.

What tools do I order to accomplish this?

Oh well. I am off to Sebring for HSR!

Regards,

[911pcars]

"What tools do I order to accomplish this?"

Bernard,
Besides basic hand tools, you'll need a synchrometer to adjust/match air flow, a float gauge (maybe two) and some basic mixture/idle speed adjustment procedures. Should be plenty in the threads and elsewhere.

Sherwood

[Rich76_911s]

Send me a pm with your email address and I'll send you a pdf file of the weber manual for 40 IDA-3C's. It is not the end all be all of information, but it might help a little.

Rich

[BReyes]

The carbs do do not appear damaged (no evidence of worn bushings that could cause the valves to score the housings). I'm off to order a Webber gasket set (then the tools:s and fg).

Thank you,

[304065]

Tons of detail on this in the factory workshop manual, too.

Sherwood, I agree with you that Simple Green can be bad for Al if left too long-- the mil-spec test is 168 hours of immersion without corrosion. I wouldn't hesitate to immerse my own 40IDAs in it overnight, though. The advantage is it can be thrown down a municipal sewer when you are done.

http://consumer.simplegreen.com/cons_faqs.php

[Early_S_Man]

Bernard,

You can find a scan of t he Weber service manual at Ernie Wilberg's site ... be sure to copy the highest-resolution pics!

http://www.pbase.com/911r