Carburators

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Model T Ford Forum: Forum 2014: Carburators
Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis strickland on Tuesday, August 05, 2014 - 11:54 am:

Just changed from vaporizer to carb. Starts up and runs for about five minutes then quits. Intake manifold at carb is very cold. Is this normal? Thanks for any help you can give me.


Top of pagePrevious messageNext messageBottom of page Link to this message  By Seth from NC on Tuesday, August 05, 2014 - 12:06 pm:

Dennis, first of all, welcome to the board!

Are you new to T's?

Tell us about your T: what year is it, what body style, did the car run before you made the switch? If not, how long has it been since the car was driven?

What carb did you switch to?

Running for a bit then quitting sounds like a fuel delivery problem. I'd take a peek in gas tank and see what it looks like in there. Remove and clean out your sediment bulb and then blow out your gas line. Make sure the brass screen in the sediment bulb isn't clogged up. Also, if you are getting any trash at all in there make sure that you remove and clean out the fuel bowl on the carb.

If the car hasn't been run in a while and you swapped to the carb and filled the tank up with gas, any new gas with ethanol will eat the varnish from the old gas out of the tank and it'll clog up the sediment bulb, the fuel line, and the carb. It won't do any permanent damage and eventually will just clean the tank and everything out really well. Except in the mean time you'll need to keep taking things apart to check and get any crud out.

Keep us posted with any and all information and the board will get this thing licked for you in no time.

Welcome to the affliction!


Top of pagePrevious messageNext messageBottom of page Link to this message  By Mark Strange on Tuesday, August 05, 2014 - 12:09 pm:

Try installing a heated air pipe to the carb inlet if you don't already have one:

pipe


Top of pagePrevious messageNext messageBottom of page Link to this message  By Henry Petrino in Modesto, CA on Tuesday, August 05, 2014 - 12:32 pm:

Given it runs for 5 minutes then quits, I'd check for fuel flow. The first thing I'd check is the vent hole in the gas tank cap. Then I'd check the sediment bowl screen.


Top of pagePrevious messageNext messageBottom of page Link to this message  By G.R.Cheshire on Tuesday, August 05, 2014 - 12:36 pm:

Dennis, you said you switched from a vaporizer to another carb. but you didn't say what type of carb.the cool intake at the carb. is normal if you are not using a heat pipe such as the one shown in marks picture above. If you swapped out for one of the "modern" (alias lawnmower) carbs sold by the vendors then it will not run properly without a fuel pump which is why I threw the one I had on my "T" away it looked like this


Top of pagePrevious messageNext messageBottom of page Link to this message  By dennis strickland on Tuesday, August 05, 2014 - 04:13 pm:

Thanks for all the advice. my car is a 1923 roadster that somebody had put a vaporizer on. It has been running for 2 years but not very good. I have put a Kingston carb on it now. It has new gas tank. carb was made from 2 carbs. I hate to buy a new one since it runs smooth before it quits. Thanks, dennis


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