Weber swap on an '85 GL wagon. It runs really lean and i cant figure out where the air leak is happening. I have all the vacuum ports sealed off and I am going to get a can of brake cleaner to try and find the culprit.
is there any other things I am missing?
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Guest Message by DevFuse
massive air leak
Started by
Markus56
, Aug 26 2009 09:08 PM
5 replies to this topic
#2
monstaru
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- Members
- 4,162 posts
bought AND built?
- OlyWa
Posted 26 August 2009 - 10:00 PM
you have to touch your right nipple to the left ventricle on the carb,and it will work.......:lol:sorry, couldna resist.
make sure your mounting surfaces are not the culprit as well.old vacuum hose gets hard sometimes, and it will not seal.the cool thing is this stuff is usually cheap.so replace if you have any doubts.
it can be a huge pain in the rump roast to figure this out. just have patience...it will work out mang...cheers, brian
make sure your mounting surfaces are not the culprit as well.old vacuum hose gets hard sometimes, and it will not seal.the cool thing is this stuff is usually cheap.so replace if you have any doubts.
it can be a huge pain in the rump roast to figure this out. just have patience...it will work out mang...cheers, brian
#3
Markus56
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- Members
- 783 posts
Professional Hack
- Havre, Montana
Posted 26 August 2009 - 10:08 PM
I already did the ventricle thing and danced the weber dance. nothing. 
there aren't any vacuum lines left. the beauty of the weber
there aren't any vacuum lines left. the beauty of the weber
Edited by Markus56, 26 August 2009 - 10:12 PM.
#4
nolicense
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USMB Regular
- Everett
Posted 26 August 2009 - 10:35 PM
have you put a vacuum gauge in there, too see if it is exactly a vacuum leak? theres been a few times working on cars where people say its a vacuum leak and then I hook up my vacuum gauge and its got a steady needle.
#5
Markus56
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- 783 posts
Professional Hack
- Havre, Montana
Posted 26 August 2009 - 10:55 PM
no, but i blocked off the most of intake with my hand and it ran fine then. And it is running really lean. So I am assuming that there is too much air, hence a vacuum leak. And it is idling at around 2000-3500 rpm, so it is bypassing the idle circuit, so changing the fuel/air mixture won't do anything.
#6
4x4_Welder
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- Members
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Just a guy
- Rexburg, ID
Posted 26 August 2009 - 11:58 PM
Brake booster, PCV are the first things that pop to mind. Also, if you ditched the EGR, make sure to use a block-off plate, don't just leave the valve in place disconnected.
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