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Re: [GMCnet] Carb / Vacuum issue [message #288603 is a reply to message #288598] Mon, 12 October 2015 18:00 Go to previous messageGo to previous message
k2gkk is currently offline  k2gkk   United States
Messages: 4452
Registered: November 2009
Karma:
Senior Member
Somebody else mentioned possible leaky float. Also the float height may be causing minor flooding!

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> Date: Mon, 12 Oct 2015 16:45:18 -0600
> To: gmclist@list.gmcnet.org
> From: brian@pimmlabs.com
> Subject: Re: [GMCnet] Carb / Vacuum issue
>
> JohnL455 wrote on Mon, 12 October 2015 14:24
>> I'm betting a float/needle seat issue. 1) how do you know the spec height number you are using is correct for this application? 2) even if set
>> correctly the needle seat can be slightly bad and cause flooding over. The primary rods properly in or stuck out in enrichment mode should not
>> matter at base idle. Are you sure your float is not gas logged?
>
>
> Early on the float stuck down and flooded over big time, gas flowing out the vent tube and puddling on top of the engine, I rebuilt the carb put in
> new needle and seat and float and it seemed to be better no more flooding over, I think it was drawing fuel from the primaries at idle after the
> rebuild, I hadn't even looked at it before the great flood. After the rebuild is when I found the water in the gas tanks so I drained and flushed
> them, added a 12 micron water separator/fuel filter and used it for the summer last year, a few short trips. This last winter I pulled the tanks and
> rebuilt the whole fuel system.
>
> I'm going to order another kit for it and see if the needle and seat may have been the culprit, I disassembled it today and they look new, nothing
> looks out of place or bad so far.
>
> --
> Brian & RaeDean
>
> 1973 26' #383
>
> Washougal WA

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