Rodney Bullock Posted December 11, 2006 Report Share Posted December 11, 2006 Well, went down to my garage todat to check my roof. decided to play with the Plymouth, cleaned the plugs and pumped the gas 6 times pulled the choke and it started right up ran it for 15 min and shut it down waited an hour and went to start it again and it started right up with no gas pumped in. I now have to find out why the plugs are sooted someone in a previous post said it was timing so I will test on advancing the timing alittle Is that right? these old cars what can you do! Quote Link to comment Share on other sites More sharing options...
De Soto Frank Posted December 14, 2006 Report Share Posted December 14, 2006 Sooty plugs ? When was the last time it went for a good long run on the road ? Frank McMullen Quote Link to comment Share on other sites More sharing options...
bob_amos Posted December 15, 2006 Report Share Posted December 15, 2006 Sooty plugs are a result of excess fuel. If you run it with the choke on and then shut it down before the heated engine, with the choke released, has time to burn that soot off you will find the plugs sooty. If you have released the choke and run it for some time and you still have the soot look for the reason for the excess fuel. High float level, internal leakge and high fuel pressure are just a few items that will give you this trouble. But in the end, soot is a result of the fuel ratio being lower than the desired 14.7 : 1 ratio. (14.7 being air and the 1 being fuel.) Quote Link to comment Share on other sites More sharing options...
Rodney Bullock Posted December 15, 2006 Author Report Share Posted December 15, 2006 When we correct a condition sometimes we forget to go back and right all things that were affected. This is my case now that the heat riser is working great, after the car is started the choke needs to be pushed in a little and must be monitered as the car warms. We must be aware of these things because automatic chokes do this for us with no thought, I am amazed that on my 1941 studebaker with automatic choke it gradually reduces idle until it's running perfect after 4 min. Why Plymouths did not use this system I will never know.........go figure:rolleyes: Quote Link to comment Share on other sites More sharing options...
De Soto Frank Posted December 15, 2006 Report Share Posted December 15, 2006 Plymouth was the base-model MoPar... an automatic choke was a "luxury item". Likewise, Chevrolets still had manual chokes up until they started being equipped with Powerglides in 1950; while Pontiac, Olds, Buick, Caddy all had autochokes during the same period. I grew-up with manual-choke cars in my family... Falcons still had them as late as '63... my Grandad's '65 Ford F-100 still had a manual choke... I think the first automatic chokes were introduced around 1933, usually only on high-end cars... The Sisson electric choke used by Chrysler Corp was one of the more reliable units of the 1934-1952 period. The next-best was the Carter Climatic Control, that lived inside the bakelite cap on the side of the carb air-horn. Glad your '40 is running better, Rodney ! Frank McMullen Quote Link to comment Share on other sites More sharing options...
bob westphal Posted December 15, 2006 Report Share Posted December 15, 2006 That's what I thought. You had flooded the engine with continued attempts to start it. The excess fuel evaporated over the period that you let the car stand. Running the engine for 15 min. won't be enough time to burn off any excess soot on the plugs. You will need to drive the car for awhile to completely clear the plugs. I wouldn't do anything to correct a possible problem until you determine that you actually have one. Drive it first! Bob Quote Link to comment Share on other sites More sharing options...
Rodney Bullock Posted December 15, 2006 Author Report Share Posted December 15, 2006 thanks fellas, happy holiday's after I play with this studebaker I am going on a long ride in the plymouth.. Quote Link to comment Share on other sites More sharing options...
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