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GMC V6 and V12 Engines Engine repair and rebuilding

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  #11  
Old July 12th, 2019, 01:03 AM
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Default Re: Carb rebuild

Thanks guys! ordering soon, will keep you up to date...
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  #12  
Old October 24th, 2019, 04:23 AM
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Default Re: Carb rebuild

UPDATE: Good, bad, uuugh-ly

Good: got the drive side wheel taken apart, repacking wheel bearings, got new brake shoes and springs, changing out hydraulic line too.

bad: replacement parts for brakes were incorrect, wait for new parts (small town delays).

uuugh-ly: started engine again and newly rebuilt carb that ran perfect 3wks before looked like a fountain of gasoline from same place as before... the accelerator pump rod hole.

Any suggestions on leak other than another rebuild of carb?
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  #13  
Old October 25th, 2019, 01:46 AM
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Default Re: Carb rebuild

You have a piece of trash under the needle. remove the fitting from the side of the carberator and clean out the trash that is on the face of the needle, change the fuel filter, and reassemble. the engine should run as it did for.
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  #14  
Old October 26th, 2019, 11:29 PM
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Default Re: Carb rebuild

Thank you but, where is this 'needle'? I'm not clear on part names...

ought was that this this a problem with one of the bearings or the float in some way, any possability there that would necessitate rebuile (again)?
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  #15  
Old November 2nd, 2019, 01:35 AM
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Default Re: Carb rebuild

you should not have to rebuild it again. Simply put, the inlet fitting that the fuel line screws into is the needle/seat on a WW Stromberg. Remove the fuel line, unscrew the fuel filter (if Equipped) then unscrew the fitting from the side of the bowl. Clean the rubber tip of the needle(clipped to the float) and clean out the inside of the fitting where the needle inserts into it. Reverse the process to reassemble, installing new fuel filter cartridge, and tighten up all connections.
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  #16  
Old November 2nd, 2019, 02:28 PM
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Default Re: Carb rebuild

Thank you, I will look forward to this next time I open the hood...

I know the fuel line was blown out through all areas revealing dust but after fuel flowed again, i didn't see any residue or signs of debris in the new filter. I think changing out filter and cleaning out the fuel line seat / needle is better than what i was expecting. Thanks again!
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