Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch

Posted by Loren on December 25, 2004 at 10:42:27 from (12.108.31.41):

In Reply to: Re: Re: Re: Re: Re: '78 Chevy K-10 blues (Roch. Ca posted by Bob S on December 24, 2004 at 18:48:35:

For starters, you do have an engine in proper state of repair, right? If it needs a bunch of repair you could be chasing your tail working on the choke/carb.
Cold means unstarted for the day, not a temp on the thermometer. Should really only be worried about this when getting the settings dialed in later. When you get it set up right it'll be good for pretty much all seasons or temps it is outside.
Ok, it sounds like you're telling me that if, say, you disabled the ignition and didn't pump the throttle, it would flood just cranking it? Or does it flood only after pumpng it? If it floods with just cranking the choke probably is not the culprit.
The mix screws will be close enough to run decent with 1&1/2 to 2 turns out from all the way in. Mix gets set only after fully warmed up and with a proper idle rpm. Say 500 to 750 rpm.
You say the problem started last winter. This fall before the temps dropped much, how did it run when warm? Is it very smooth idling or is there a roughness? I'm wondering about a bad valve. When you crank an engine ALL of the flow will be into the engine. Nothing to make or allow fuel to come up through the choke. Should pull all of it down, along with the gravity flow. Get my drift? Generally a bad intake valve will push fuel up out of the carb as that cylinder comes to compression. Valve leaks, pushing what's supposed to be compressed back out the intake.
Read your post again, realized I missed a bit. Choke about half way open sounds like it will indeed run. A wide open throttle setting will open the choke to clear the fuel. You may try holding the throttle all the way down to start it. Resist that urge to pump some more if it doesn't fire off. LOL If it's real bad you may have fouled the plugs to where it won't start right too. Be aware of that. I've had situations come to me that I had to change the plugs, block the choke open and first get it running, check for flooding with the choke still blocked, and do most of the adjustments, then do a prelim choke setting, let it sit over night and readjust for a final.
That'll give you more to go on for now. My head hurts this morning. Loren

Follow Ups:

• Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blues ( Bob S 21:27:20 12/25/04 (4)
  • Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 blu Loren 19:23:39 12/27/04 (3)
    • Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy K-10 Bob S 21:13:03 01/03/05 (2)
      • Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy Loren 19:48:51 01/04/05 (0)
      • Re: Re: Re: Re: Re: Re: Re: Re: Re: Re: '78 Chevy Loren 19:46:39 01/04/05 (0)

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