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> Rebuilding My Weber 40s ?
kenshapiro2002
post Aug 12 2009, 07:15 AM
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Can a "shade tree" mechanic like myself do this without a major cluster F*#k? I know how to label, sort and be meticulous, and how to do one at a time. On a scale of 1-10 (1 being an oil change and 10 being clutch replacement in an XKE!) whattaya think?
Ken

P.S. Bought the car after it had sat for years. Rode it home from CT to MD and it ran fine for about 150 miles. Then it began to act fuel starved under any load...up hills, accelerating, etc. It gets worse day by day. I've changed fuel filter (pretty clean actually), plugs and wireset. Should I clean idle jets first...before attempting this? Any chnace I'll get the thing running again if I do this?
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aircooledtechguy
post Aug 12 2009, 09:25 AM
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Of course you can do a basic cleaning and rebuild. TC is right about needing a professional machine shop if the shafts are worn, but short of that you should be able to do it all.

If you are concerned about messing up putting them back together, simply do one at a time. Then you have a complete example if you get stuck or forget where something goes. Also prior to removing the mixture screws, gently bottom them in the holders to count the # of turns so you can get them back to their original settings which can make starting the car easier later as it helps to have a starting point for tuning.

I use carb cleaner in the spray cans to get any big stuff off. Then I soda blast everything to get it all clean without having to worry about getting media stuck in the small passages. Soak everything for a few minutes in warm water, blow it out with air and they will look brand new and be completely clean.

Re-assemble in reverse order (IMG:style_emoticons/default/biggrin.gif)

You definitely need to invest in a carb syncrometer in order to get them dialed-in correctly.

I would rate this job (without shaft replacement) at around a 3-4. TOTALLY do-able.
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kenshapiro2002   Rebuilding My Weber 40s ?   Aug 12 2009, 07:15 AM
carr914   First, if they 911 six cylinder carbs, get yoursel...   Aug 12 2009, 07:48 AM
tat2dphreak   I agree with TC on the -6 carbs, but I'm suspe...   Aug 12 2009, 08:01 AM
kenshapiro2002   Bearings and all should be good. The car was ...   Aug 12 2009, 08:49 AM
r_towle   Yes you can do it. I wont say it easy, but it real...   Aug 12 2009, 08:07 AM
kenshapiro2002   Thanks...just ordered the book. Now a syncro tool ...   Aug 12 2009, 08:47 AM
jmill   You can do it. The book will tell you how to set ...   Aug 12 2009, 09:14 AM
aircooledtechguy   Of course you can do a basic cleaning and rebuild....   Aug 12 2009, 09:25 AM
MDG   Yes you can, Ken. I did my 40 IDA 3C's over th...   Aug 12 2009, 09:50 AM
jmill   Bought this book 20 years ago. Hasn't failed ...   Aug 12 2009, 09:57 AM
kenshapiro2002   Thanks guys...your help is invaluable! Ken   Aug 12 2009, 10:01 AM
kenshapiro2002   BTW...how can I be 100% sure these are Weber 40S (...   Aug 12 2009, 10:07 AM
r_towle   BTW...how can I be 100% sure these are Weber 40S ...   Aug 12 2009, 04:31 PM
neil30076   BTW...how can I be 100% sure these are Weber 40S...   Aug 12 2009, 04:49 PM
kenshapiro2002   FINALLY...found it...very low on on of the barrel ...   Aug 12 2009, 04:59 PM
neil30076   FINALLY...found it...very low on on of the barrel...   Aug 12 2009, 05:08 PM
kenshapiro2002   Auto Atlanta wants $40 per kit and I know I...   Aug 12 2009, 05:12 PM
jmill   You can use 40 Weber gaskets on a 44. You just ha...   Aug 12 2009, 10:18 AM
tat2dphreak   You can use 40 Weber gaskets on a 44. You just h...   Aug 12 2009, 10:20 AM
kenshapiro2002   Very helpful...thanks. You can use 40 Weber gask...   Aug 12 2009, 10:25 AM
jmill   The 40 and 44 have the same carb body. The only d...   Aug 12 2009, 10:40 AM
tat2dphreak   http://www.aircooled.net/new-bin/viewprodu...81220...   Aug 12 2009, 11:14 AM
r_towle   redline weber. Rich   Aug 12 2009, 05:16 PM
kenshapiro2002   www.webercarbdirect.com sells the kit for $18...   Aug 12 2009, 05:18 PM
neil30076   www.webercarbdirect.com sells the kit for $1...   Aug 12 2009, 05:20 PM
Gint   www.webercarbdirect.com sells the kit for $18...   Aug 12 2009, 05:38 PM
kenshapiro2002   Makes sense. Bought them from Weber Carb Direct si...   Aug 12 2009, 05:44 PM
jmill   Remember that you can never have too many gaskets ...   Aug 12 2009, 05:59 PM
kenshapiro2002   Love the advice and experience I'm getting her...   Aug 12 2009, 06:30 PM
tat2dphreak   yes the AA kit is double the price of weber... jus...   Aug 12 2009, 08:34 PM
jmill   Love the advice and experience I'm getting he...   Aug 12 2009, 10:08 PM
kenshapiro2002   You guys are MUCH better than either of my ex wive...   Aug 12 2009, 10:42 PM


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