B with issues

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   Hey all I'm new here but have gotten lots of knowledge from the discussionsin the past year. My question is I have an early OHV engine we have replaced the head gasket, valve train and carb all were shot. Also replaced coil plugs wires points condenser, basic tune up.with a light over haul. Now I got it running but it will only run 3-5 minutes then dies. Let it sit for 15 minutes and it will run another3-5 minutes and so on. The cab is still full of fuel still have full volts at the coil. Could it be a valve lash issue? I grasping at straws can't get anything to work. Any help is greatly appreciated and will to try any tips or suggestions. Thank you for all the help

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Allis in wyoming Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 12 Oct 2018 Location: Laramie Wy Points: 5	Post Options Post Reply Quote Allis in wyoming Report Post Thanks(0) Quote Reply Topic: B with issues Posted: 12 Oct 2018 at 10:31pm
	Hey all I'm new here but have gotten lots of knowledge from the discussionsin the past year. My question is I have an early OHV engine we have replaced the head gasket, valve train and carb all were shot. Also replaced coil plugs wires points condenser, basic tune up.with a light over haul. Now I got it running but it will only run 3-5 minutes then dies. Let it sit for 15 minutes and it will run another3-5 minutes and so on. The cab is still full of fuel still have full volts at the coil. Could it be a valve lash issue? I grasping at straws can't get anything to work. Any help is greatly appreciated and will to try any tips or suggestions. Thank you for all the help

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WF owner Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 5053	Post Options Post Reply Quote WF owner Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 5:19am
	Welcome to the forum!!! My guess would be either a bad coil or condenser. Most of the newer ones are made in China and the quality is not good. I went through 3 condensers on one of WD45's a few years ago, before I switched it over to Pertronix. If it has a distributer, it's either not a real early B or someone has switched it from a mag. I believe they switched production tractors from magnetos to distributers sometime in the early 50's. You should be able to tell the year by the serial number, right near the shifter. Edited by WF owner - 13 Oct 2018 at 5:20am

Dick L Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Edon Ohio Points: 5093	Post Options Post Reply Quote Dick L Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 7:06am
	As soon as it dies quickly pull a plug wire off and see if it will jump spark to the plug end. If you have spark it most likely will be a fuel obstruction somewhere. I have found obstructions in the sediment bowl neck that screws into the tank that would only let small a amount gas thru. Quick check for that is to remove the plug from the bottom of the carburetor to watch the flow. You need a steady flow of gas after the amount of gas the bowl holds comes out.

Allis in wyoming Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 12 Oct 2018 Location: Laramie Wy Points: 5	Post Options Post Reply Quote Allis in wyoming Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 7:56am
	Thanks guys, I will go back over the basics on it again today, I feel like I have been through the ignition and fuel system so many times it just can't be in there but it is the only areas that make sense. If I post the VIN would you be,able you be able to tell me what more about the tractor? This is my first Allis, we had Farmall on the farm/ranch in ND and grew up with an M. This little Allis is perfect for the small paddocks we have at our new ranch in Wyoming. I love the tractor but it seem more finicky than the on Farmall M. Thanks again for your help I will look over those areas again

WF owner Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 May 2013 Location: Bombay NY Points: 5053	Post Options Post Reply Quote WF owner Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 8:01am
	From the serial number, we can tell you the year it was manufactured, but not much more. Other than the very early (Waukesha engine)B, they all had basically the same engine.

chaskaduo Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 26 Nov 2016 Location: Twin Cities Points: 5200	Post Options Post Reply Quote chaskaduo Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 8:15am
	Rubber fuel line collapsing, gas tank cap not venting, crud sucking to the gas tank outlet then releasing after a bit ???
	1938 B, 79 Dynamark 11/36 6spd, 95 Weed-Eater 16hp, 2010 Bolens 14hp

wfmurray Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Sep 2009 Location: Bostic NC Points: 1225	Post Options Post Reply Quote wfmurray Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 9:29am
	My B cut off and it was etyhol gas had sealed screen in the sediment bowel.

Gerald J. Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Hamilton Co, IA Points: 5636	Post Options Post Reply Quote Gerald J. Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 9:30am
	6 volt coil and 12 volt battery? That 15 minute recovery time is typical for an overheating coil and also for a gas tank cap that isn't venting. A modern car cap won't vent. NAPA still sells venting caps. Maybe the shop manual will help: http://geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf Gerald J.

Allis in wyoming Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 12 Oct 2018 Location: Laramie Wy Points: 5	Post Options Post Reply Quote Allis in wyoming Report Post Thanks(0) Quote Reply Posted: 13 Oct 2018 at 10:50pm
	Thanks for all the great tips and help, and the manual! I didn't get to work on it today as there was a blizzard moving in tonight and I had to get the new hay shed enclosed before it hit. I will try all these tip in the shop tomorrow and let you all know if I find anything.

bradley6874 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 05 Sep 2010 Location: salisbury md Points: 1349	Post Options Post Reply Quote bradley6874 Report Post Thanks(0) Quote Reply Posted: 14 Oct 2018 at 6:03am
	When it cuts off does it stumble then die or just cut off try playing with the choke when it starts to die if you can keep it trying to run it's fuel if the choke doesn't change anything it's probly fire
	You can wash the dirt off the body but you can’t wash the farmer out of the heart and soul

Stan IL&TN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 13 Sep 2009 Location: Elvis Land Points: 6730	Post Options Post Reply Quote Stan IL&TN Report Post Thanks(0) Quote Reply Posted: 14 Oct 2018 at 10:41am
	If you can keep it running by giving it choke then also consider an intake leak. As things heat up a leak can form at the intake and it will start sucking in air. You can give it a little propane from a torch at the junction of the intake at the block and if the engine RPM speeds up then you have a leak.
	1957 WD45 dad's first AC 1968 one-seventy 1956 F40 Ferguson

Allis in wyoming Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 12 Oct 2018 Location: Laramie Wy Points: 5	Post Options Post Reply Quote Allis in wyoming Report Post Thanks(0) Quote Reply Posted: 14 Oct 2018 at 6:57pm
	Thanks for all the help and ideas, I took a hard look at it today and took off the oil line going to the,distributor housing, it was plugged solid, Cleaned it up and put it back together runs like a champ for the moment.

HoughMade Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 22 Sep 2017 Location: Valparaiso, IN Points: 710	Post Options Post Reply Quote HoughMade Report Post Thanks(0) Quote Reply Posted: 14 Oct 2018 at 9:39pm
	Seeing as how the early tractors with the same engine didn’t even have that oil line, it seems like that would not cause it to cut out, but here’s to hoping it runs fine for you.
	1951 B