Nanorios Posted April 10, 2018 Share Posted April 10, 2018 My 1936 Buick shuts off when swithing gears (high RPM) only seems to have the problem once engine gets warm and cars been running for a while.almost sound like car runs out of gas I have plenty of gas and fuel pump is good ..any help would be gretly appriciated Link to comment Share on other sites More sharing options...
pont35cpe Posted April 10, 2018 Share Posted April 10, 2018 First thing I would check is when it quit, remove air cleaner and check to see if accelerator pump squirts gas in the throat of the carb. Link to comment Share on other sites More sharing options...
Morgan Wright Posted April 10, 2018 Share Posted April 10, 2018 Make sure the choke is open all the way when the engine warms up. It should be wide open. Sounds like you aren't getting enough air. Link to comment Share on other sites More sharing options...
pont35cpe Posted April 10, 2018 Share Posted April 10, 2018 If it was choking itself, it would be blowing black smoke out the tail pipe. Link to comment Share on other sites More sharing options...
BuicksBuicks Posted April 10, 2018 Share Posted April 10, 2018 Have a look at the sediment jar on your fuel pump. If it has a lot of rusty junk in it, that same sediment may have worked its way into the carburetor and simulate a "no gas" condition. What I'm getting at is that if your gas tank has not been serviced and lined for use with modern ethanol fuels, you may just have an internally rusted gas tank. Ethanol contains water and that water will rust your tank. Its a problem that drove me nuts for the first few months of driving my new '37. Link to comment Share on other sites More sharing options...
Spinneyhill Posted April 11, 2018 Share Posted April 11, 2018 The other thing that happens when rust flakes hit the carburetor is that one gets stuck in the float needle valve and the engine drowns in petrol. Any rough running before it stops? Is it easy to start again? Link to comment Share on other sites More sharing options...
Nanorios Posted April 11, 2018 Author Share Posted April 11, 2018 Thanks for all the replys ...tank was just boiled and carburater was just rebuilt Link to comment Share on other sites More sharing options...
1939_Buick Posted April 11, 2018 Share Posted April 11, 2018 1 hour ago, Nanorios said: ...tank was just boiled and carburater was just rebuilt So we have the cause? Were the fuel lines replaced? Link to comment Share on other sites More sharing options...
Spinneyhill Posted April 11, 2018 Share Posted April 11, 2018 2 hours ago, Nanorios said: Thanks for all the replys ...tank was just boiled and carburater was just rebuilt And the carb. was rebuilt by someone that knows them? What about my questions above. Any rough running before stopping? Is it easy to restart? Link to comment Share on other sites More sharing options...
Nanorios Posted April 11, 2018 Author Share Posted April 11, 2018 1 minute ago, Spinneyhill said: And the carb. was rebuilt by someone that knows them? What about my questions above. Any rough running before stopping? Is it easy to restart? No rough running before stopping ..and after stopping takes a few minutes then will restart then will take off fine and once I go to put in 2 second gear dies out again Link to comment Share on other sites More sharing options...
Nanorios Posted April 13, 2018 Author Share Posted April 13, 2018 On 4/10/2018 at 8:14 PM, Spinneyhill said: And the carb. was rebuilt by someone that knows them? What about my questions above. Any rough running before stopping? Is it easy to restart? I think it's the flap that the idle screw sits on that's the problem ..when car warms it looks like that flap either stays open or shut can't tell Link to comment Share on other sites More sharing options...
Morgan Wright Posted April 13, 2018 Share Posted April 13, 2018 You didn't answer whether the accelerator pump was working. Link to comment Share on other sites More sharing options...
Spinneyhill Posted April 13, 2018 Share Posted April 13, 2018 (edited) How much do you have to increase the idle speed to stop this happening? Coils sometimes play up like this when they get warm. Can you try a spare? You might have to explain the "flap the idle screw sits on". It should not move? A picture would be very helpful. Edited April 13, 2018 by Spinneyhill (see edit history) Link to comment Share on other sites More sharing options...
Nanorios Posted April 16, 2018 Author Share Posted April 16, 2018 On 4/12/2018 at 7:10 PM, Spinneyhill said: How much do you have to increase the idle speed to stop this happening? Coils sometimes play up like this when they get warm. Can you try a spare? You might have to explain the "flap the idle screw sits on". It should not move? A picture would be very helpful. Sorry It's actually the manifold not carb Link to comment Share on other sites More sharing options...
Nanorios Posted April 16, 2018 Author Share Posted April 16, 2018 On 4/12/2018 at 7:03 PM, Morgan Wright said: You didn't answer whether the accelerator pump was working. Yes accelerator pump is working Link to comment Share on other sites More sharing options...
Morgan Wright Posted April 16, 2018 Share Posted April 16, 2018 If shifting gears is the only reason it stalls I guess you need to tell us: 1. Does it happen when you are going downhill and shifting? If it stalls when you shift going downhill, then it's your tranny. If no: 2. Does it happen when you are going uphill and don't shift? If you stay in first gear all the way up the hill, then when you shift, it stalls? It's your tranny. 3. There is no number 3. It's your tranny. Link to comment Share on other sites More sharing options...
Gary W Posted April 17, 2018 Share Posted April 17, 2018 Do you have a two-stage fuel pump on this car? Link to comment Share on other sites More sharing options...
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