Re: Re: Re: Help with J.D. BO
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Posted by Dave Wickman on June 08, 1998 at 08:30:44:
In Reply to: Re: Re: Help with J.D. BO posted by Jeff D. on June 05, 1998 at 23:25:16:
: : : Late last year we lost our tractor man,when he died not only did he leave us with the memories of a great man,he left us with a tractor in the shop.I dont beleive any man can rest properly with a project still in the shop.I've tried over and over to get it running right but nothing workes. please help me finish the work that my father in law (and my best friend) started and did not get a chance to finish. I have very big boots to fill and will take any help I can get. The tractor is a 1935 John Deere BO sn. 325502 Thankyou!
: : Jeff If I can be of some help please contact me and let me know what I can do for you. I know what You are going through! I am a fellow tractor collector and restorer myself, Have restored many J.D. Two cylinder tractors in the past sevral years including my 1938 J.D. BI. My love of this hobby and 20 years of J.D. dealer service experience I am sure I can be of some help. My B Indutrial has the same engine and basic Power Train as your B Orchard. I do alot of carb and mag work also. If you ever heard my BI run I wound not have to tell you that I can
: : make them run right! So if its information you can use, I would be more than happy to share what I know. Let that special memorey live on by finishing up this very special prodject. Good Luck!!! Dave W. Iowa : Dave:
: Thank you for your offer of help, I do need it. Last year he started restoring the BO, when he pulled it out of the pasture the engine was stuck and it was in bad shape. He went through everything and had never had any trouble with any other tractor he restored, but this one would not run right. When he last worked on it he was thinking that it might be the carb. so that was the first place I started I went through many times and found nothing wrong. next, since its runing rough, hard to start, and poping back through the carb. I thought it might be the timing, Iwent through the timing gears and they were all lined up and good, next we noticed that air was sliping into the manafold and took it in and got it surfaced. I thought for sure that got it but it dident. The next step I think is to take it all the way down and start over again. If you or anyone else have any other ideas please let me know. thank you! : Jeff:
Sounds like you have yourself a hairpuller, With the information you shared you already have covered the most obvious. Usally popping back through the carb is caused by the engine running to lean? Carb or an intake leak. Does the tractor idle and pop back only at higher rpm or does it do it all the time? Resurfacing the manifold was time well spent! This is a common oversight. Was the intake passage of the manifold inspected? It is rare to find this but I have seen it, the exhaust will burn its way or a hole into the intake causing exhaust gases to enter the intake passage and result is this problem. My first suggestion would be to recheck the valve cleances again and also check to see if possibly that there might be a valve hanging up? Maybe you can give me some more information like, Does the tractor run bad all the time or just when it is warm/cold? Will the tractor slow idle with the choke off? Does it gallope when it does idle? and if it does, Does it die when you hold the throttle shaht in a slow idle posistion? Can you make fuel mixture adjustment to the carburator and does the tractor engine respond to these adjustments. If any of these suggestions do exsist I would still suspect Carb, Manifold, or Valve failure. A few more questions and that is what do you have to do to get the tractor to start, Do you strart it by hand or do you pull it? Does the mag impulse and produce a good blue spark? What make and model of mag do you have on it? Usally if the tractor will start by hand the mag is not at fault, with maybe the rare exception of the condenser! Check out these suggestions and let me know what you find. The more information you can give me the more help I can be. Good Luck!!
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