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#1 |
Registered User
Join Date: Sep 2017
Location: Riverton, Manitoba
Posts: 67
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Rochester 1 barrel carburetor leak
I put a carb kit in this Rochester 1 barrel carburetor and it's leaking around the gasket which seals the 2 halves. Is there some type of gasket maker silicone stuff that would stop the leak?
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#2 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,615
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Re: Rochester 1 barrel carburetor leak
Lower the float level.
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#3 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,396
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Re: Rochester 1 barrel carburetor leak
Bam! Done!
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__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#4 |
Registered User
Join Date: Sep 2017
Location: Riverton, Manitoba
Posts: 67
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Re: Rochester 1 barrel carburetor leak
Well that would be easy enough. I'll try it. Thanks
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#5 |
Senior Member
![]() Join Date: Dec 1999
Location: TX
Posts: 1,569
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Re: Rochester 1 barrel carburetor leak
Are you guys serious? Is it as simple as that? Mine leaks out the top parts seal and I have a rebuild unit that doesn't run very good that came with a double gasket there...but I didn't leave it on long enough to see if it leaked also. I just figured my gaskets were cheap...
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#6 |
Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,615
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Re: Rochester 1 barrel carburetor leak
Just a logical thing to do!
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#7 |
Who Changed This?
![]() Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,396
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Re: Rochester 1 barrel carburetor leak
Indeed! Double gaskets is an ate-up solution to a leak, if the float level is too high. That will change the float level, but also the metering rod calibration. Who rebuilt that carb?
__________________
~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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#8 |
Senior Member
![]() Join Date: Apr 2013
Location: Podunk, Texas
Posts: 748
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Re: Rochester 1 barrel carburetor leak
You should also make sure that the bowl and horn flanges aren’t warped from too much tightening over the years...old Rochester B carbs are known to have that problem...and don’t just flatten them on emery paper on glass...there is a thin sealing ring that you’ll sand off.
These guys were very helpful when I rebuilt mine: https://www.carburetor-parts.com/Roc...03_p_2743.html
__________________
"It is hard to search for a black cat in a dark room, particularly if it is not there. Especially if this cat is smart, brave, and polite." Sergei Shoigu, Russian Minister of Defense Last edited by jabborabbo; 10-31-2018 at 10:48 PM. |
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#9 |
Registered User
Join Date: Jan 2011
Location: Delaware and Long Island, New York
Posts: 3,455
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Re: Rochester 1 barrel carburetor leak
I purchased a new rebuild kit from Mike's, but have yet to install on my 67's B model Roch. Mine is very temperamental when it does leak, usually it's seasonal and hasn't leaked in the past year, yea, strange, hence the carb kit remains in the bag, in the glove box.
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