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Re: starting the engine [message #321736 is a reply to message #321702]

Sun, 06 August 2017 23:15

mrgmc3

Messages: 210
Registered: September 2013
Location: W Washington

Karma:

Senior Member

For cold start problems you can check 2 main issues relatively easily with the hatch open and air cleaner lid removed and the engine OFF.;
1) choke operation - before you touch anything else, while the engine is still cold, simply press the gas pedal one time all the way to the floor. The choke plate should fully close. If the choke plate is even partially open you have some linkage adjusting to do. If it does not close fully it will be very hard to start COLD (engine is at ambient temp).
2) check for fuel in the float bowl. You can do this by pressing the gas pedal and looking down the primary bores of the carburetor, but NOT while cranking! Just with the engine off you should see two small streams spray as you move the pedal - assuming your accelerator pump works properly. If there is no "pump shot" either the bowl is empty, the accelerator pump is bad or both. The fuel can "go away" from the float bowl for two reasons; a) the engine was very hot last time you shut it down or it's been several days - in either case the contents of the float bowl evaporated. b) the well plugs on the underside of the float bowl leak and the contents drip into your intake manifold (can be fixed with epoxy). In either case you must crank for several seconds to fill the bowl back up. Running the electric pump for 5 -10 seconds before cranking will help wth this.
Finally I would not recommend cranking the engine for more than 10 seconds at time with a 20 second wait before recranking. Cranking longer will overheat the starter and shorten its life.

Chris Geils - Twin Cities / W Wa 1978 26' Kingsley w/ very few mods; PD9040, aux trans cooler, one repaint in stock colors, R134a, Al rad, Alcoas, 54k mi

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[Message index]

		starting the engine By: kstockwell on Sun, 06 August 2017 13:55
		Re: starting the engine By: shaunone on Sun, 06 August 2017 14:18
		Re: starting the engine By: kstockwell on Sun, 06 August 2017 14:26
		Re: starting the engine By: Carl S. on Sun, 06 August 2017 14:49
		Re: [GMCnet] starting the engine By: James Hupy on Sun, 06 August 2017 14:51
		Re: [GMCnet] starting the engine By: kstockwell on Sun, 06 August 2017 20:16
		Re: [GMCnet] starting the engine By: k2gkk on Sun, 06 August 2017 20:25
		Re: [GMCnet] starting the engine By: kstockwell on Sun, 06 August 2017 20:38
		Re: [GMCnet] starting the engine By: k2gkk on Sun, 06 August 2017 22:24
		Re: [GMCnet] starting the engine By: Richard Denney on Sun, 06 August 2017 22:57
		Re: starting the engine By: mrgmc3 on Sun, 06 August 2017 23:15
		Re: [GMCnet] starting the engine By: ljdavick on Mon, 07 August 2017 01:14
		Re: starting the engine By: Chris Tyler on Mon, 07 August 2017 04:24
		Re: [GMCnet] starting the engine By: Bruce Hart on Mon, 07 August 2017 06:13
		Re: [GMCnet] starting the engine By: kstockwell on Mon, 07 August 2017 07:15
		Re: starting the engine By: JohnL455 on Mon, 07 August 2017 08:56
		Re: starting the engine By: kstockwell on Sun, 13 August 2017 14:11
		Re: starting the engine By: kstockwell on Sun, 13 August 2017 14:35
		Re: [GMCnet] starting the engine By: Keith V on Mon, 14 August 2017 09:00
		Re: [GMCnet] starting the engine By: kstockwell on Mon, 14 August 2017 14:45
		Re: [GMCnet] starting the engine By: Keith V on Mon, 14 August 2017 15:20
		Re: [GMCnet] starting the engine By: kstockwell on Mon, 14 August 2017 18:00
		Re: [GMCnet] starting the engine By: 77Royale on Mon, 14 August 2017 15:34
		Re: [GMCnet] starting the engine By: kstockwell on Mon, 14 August 2017 18:25
		Re: [GMCnet] starting the engine By: k2gkk on Mon, 14 August 2017 16:21
		Re: [GMCnet] starting the engine By: kstockwell on Mon, 14 August 2017 18:02
		Re: [GMCnet] starting the engine By: k2gkk on Mon, 14 August 2017 20:35
		Re: [GMCnet] starting the engine By: Keith V on Tue, 15 August 2017 08:43
		Re: starting the engine By: JohnL455 on Tue, 15 August 2017 08:44
		Re: [GMCnet] starting the engine By: bdub on Tue, 15 August 2017 09:23
		Re: [GMCnet] starting the engine By: kstockwell on Wed, 16 August 2017 06:14
		Re: [GMCnet] starting the engine By: kstockwell on Wed, 16 August 2017 06:18
		Re: [GMCnet] starting the engine By: Richard Denney on Wed, 16 August 2017 07:03
		Re: [GMCnet] starting the engine By: USAussie on Wed, 16 August 2017 07:19
		Re: [GMCnet] starting the engine By: kstockwell on Wed, 16 August 2017 08:16
		Re: starting the engine By: jhbridges on Tue, 15 August 2017 11:05
		Re: starting the engine By: 77Royale on Wed, 16 August 2017 07:27
		Re: starting the engine By: kstockwell on Wed, 16 August 2017 19:17
		Re: starting the engine By: jhbridges on Thu, 17 August 2017 08:15
		Re: starting the engine By: kstockwell on Thu, 17 August 2017 10:11
		Re: [GMCnet] starting the engine By: James Hupy on Thu, 17 August 2017 10:26
		Re: [GMCnet] starting the engine By: jimk on Thu, 17 August 2017 11:02
		Re: [GMCnet] starting the engine By: kstockwell on Thu, 17 August 2017 11:29
		Re: [GMCnet] starting the engine By: kstockwell on Thu, 17 August 2017 17:35
		Re: [GMCnet] starting the engine By: James Hupy on Thu, 17 August 2017 18:00
		Re: [GMCnet] starting the engine By: kstockwell on Thu, 17 August 2017 18:19
		Re: [GMCnet] starting the engine By: James Hupy on Thu, 17 August 2017 18:25
		Re: [GMCnet] starting the engine By: kstockwell on Thu, 17 August 2017 18:35
		Re: [GMCnet] starting the engine By: kstockwell on Thu, 17 August 2017 18:34
		Re: [GMCnet] starting the engine By: kstockwell on Sun, 20 August 2017 08:05
		Re: [GMCnet] starting the engine By: James Hupy on Sun, 20 August 2017 09:00
		Re: [GMCnet] starting the engine By: kstockwell on Sun, 20 August 2017 09:29
		Re: starting the engine By: kstockwell on Sat, 19 August 2017 15:16
		Re: starting the engine By: C Boyd on Sat, 19 August 2017 19:00
		Re: starting the engine By: kstockwell on Sun, 20 August 2017 07:42

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