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Jul 21st, 2025 | | | | Joined: Jan 2009 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 246 | I have a 1953 Chevy truck with a 235 engine one barrel carb and it seems to be having a hard starting after it's been idling a while I'm not sure if this is vapor lock or its heat soaking but if it is any suggestion on how to make this any better ? | | | | | Joined: Aug 2012 Posts: 1,214 Shop Shark | | Shop Shark Joined: Aug 2012 Posts: 1,214 | Might be SOP. I find that my old carb equipped engines need more air than fuel to start once they're warmed up.
If you still have the stomp starter, try using your heel to open the throttle while your toe pushes the starter. Don't pump the carb, open it while it's cranking.
Good luck
Dave | | | | | Joined: Feb 2000 Posts: 4,886 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 4,886 | Look at the post about three or four down from this one, "Rochester Model B Question" . Yours is probably related.
| | | | | Joined: Jan 2009 Posts: 246 Shop Shark | | Shop Shark Joined: Jan 2009 Posts: 246 | Ok I will try that . What is a Sop ? | | | | | Joined: Sep 2001 Posts: 29,262 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,262 | possible SOP meanings Standard (Standing) Operating Procedure? With a warmed engine: - Slowly push the pedal to floor and then release. - Give just a little throttle (or, no throttle, depending on your engine). - Turn on the ignition key and push the starter pedal. | | | | | Joined: Nov 2002 Posts: 2,715 Carburetion specialist | | Carburetion specialist Joined: Nov 2002 Posts: 2,715 |
Good carburetion is fuelish hot airThe most expensive carburetor is the wrong one you attempt to modify. If you truly believe "one size fits all," try walking a mile in your spouse's shoes!The Carburetor Shop | | | | | Joined: Aug 2012 Posts: 1,214 Shop Shark | | Shop Shark Joined: Aug 2012 Posts: 1,214 | Interesting, didn't know there were so many uses for SOP.
Don't recall anyone using it for anything other than standard operating procedure. Must be a military thing......
If all the above fails you can try this:
SLowly floor the pedal (as Carbkings article says to avoid squirting fuel into the carb)then while cranking slowly let up on the pedal. I've used that procedure successfully before too.
Good luck
Dave | | |
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