<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"></head><body dir="auto"><div dir="auto">Carl, thanks for that tip. I'm not sure I fully understand the procedure. So I will try to play back what I think you said. Starting with a small drill bit drill the side of the nut about 1/2 way between the edge of the nut and the threads. A little closer to the edge of the nut. The use progressively larger bits until running into the threads. Then the nut should be easier to split with a chisel.</div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto"><br></div><div id="composer_signature" dir="auto"><div style="font-size:85%;color:#575757" dir="auto">Sent from my Galaxy</div></div><div dir="auto"><br></div><div><br></div><div align="left" dir="auto" style="font-size:100%;color:#000000"><div>-------- Original message --------</div><div>From: szabelski@wildblue.net </div><div>Date: 11/25/20 7:21 PM (GMT-07:00) </div><div>To: Antique Tractor Email Discussion Group <at@lists.antique-tractor.com> </div><div>Subject: Re: [AT] 1935 JD B Testing progress. </div><div><br></div></div>Dean, If you run into an issue where you can’t get the nut buster onto the nut, try drilling the nut off. Start with your smallest drill and drill a hole about half way though one side of the nut, drilling a little closer to the side of the nut then the threads. Keep increasing drill size until you get close to the threads or until you break out of the side of the nut. Then you should be able to split the nut with a chisel and not a lot of hammering. The nut may not fully split, but you should be able to turn it off with little effort.<br dir="auto"><br dir="auto">Carl<br dir="auto"><br dir="auto"><br dir="auto">----- Original Message -----<br dir="auto">From: Dean VP <deanvp@att.net><br dir="auto">To: 'Antique Tractor Email Discussion Group' <at@lists.antique-tractor.com><br dir="auto">Sent: Wed, 25 Nov 2020 20:46:09 -0500 (EST)<br dir="auto">Subject: Re: [AT] 1935 JD B Testing progress.<br dir="auto"><br dir="auto">I think I found the real problem on my 1935 JD B today. I applied 30 psi of<br dir="auto">air pressure to the carburetor inlet side of the manifold and air was<br dir="auto">rushing out the exhaust pipe with all valves closed. Apparently I have a<br dir="auto">rust out in the manifold or a blown gasket between the input and exhaust<br dir="auto">side of the manifold. Started pulling the head today and have everything<br dir="auto">loose except the water hoses. Will soon have everything off to see if<br dir="auto">anything is visible. I was hoping I wouldn't have to remove the manifold.<br dir="auto">The manifold studs will not come out without twisting off. I'm going to try<br dir="auto">to use a nut buster on the top nuts and see if I can get the nuts off<br dir="auto">without breaking the studs. Then try to remove the manifold. Was hoping I<br dir="auto">wasn't going to have to do this but I'm glad I found the problem. Will<br dir="auto">probably be looking for a new reproduction manifold or good used one.<br dir="auto">Leon??? Real progress today.<br dir="auto"><br dir="auto">Dean VP<br dir="auto">Apache Junction, AZ<br dir="auto"><br dir="auto">-----Original Message-----<br dir="auto">From: AT <at-bounces@lists.antique-tractor.com> On Behalf Of Dean VP<br dir="auto">Sent: Tuesday, November 24, 2020 9:35 PM<br dir="auto">To: 'Antique Tractor Email Discussion Group' <at@lists.antique-tractor.com><br dir="auto">Subject: Re: [AT] 1935 Testing progress.<br dir="auto"><br dir="auto">The later JD All Fuel JD B's, which had higher HP, had a compression of<br dir="auto">70psi. Haven't found a reference for the earlier JD B"s. But it surely<br dir="auto">wouldn't be higher than 70. The difference between cylinders of 7 1/2psi is<br dir="auto">pushing the limits of acceptability. These tests were with the tractor<br dir="auto">cold. The compression test is supposed to be run when the tractor is a<br dir="auto">running temperature. The next test to run is the manifold leakage test. Then<br dir="auto">I probably will install the magneto and carburetor and get it running so I<br dir="auto">can do a high temperature compression test. I may just pull the tappet<br dir="auto">cover and see if the lash is set right on the valves first. Now that I have<br dir="auto">the right tools to do the testing I Can make some progress. <br dir="auto"><br dir="auto">Dean VP<br dir="auto">Apache Junction, AZ<br dir="auto"><br dir="auto">-----Original Message-----<br dir="auto">From: AT <at-bounces@lists.antique-tractor.com> On Behalf Of Dean VP<br dir="auto">Sent: Tuesday, November 24, 2020 7:43 PM<br dir="auto">To: 'Antique Tractor Email Discussion Group' <at@lists.antique-tractor.com><br dir="auto">Subject: [AT] 1935 Testing progress.<br dir="auto"><br dir="auto">Was able to get the 1935 JD B out of storage and since I had the carburetor<br dir="auto">and magneto removed during the winter storage we just pulled it to new<br dir="auto">location for the winter. Since we were pull moving anyway I asked my friend<br dir="auto">to pull me in gear about the distance of the two blocks with the plugs out<br dir="auto">to get the oil pressure built up for the compression pending compression<br dir="auto">testing. Then hooked the compassion tester and 7/8" to 154 MM adapter up<br dir="auto">and had him pull me a 100 feet or so in gear and tested compression on each<br dir="auto">cylinder. Thew results were not as expected. Got about 62 1/2" psi on the<br dir="auto">left cylinder and about 55 psi on the right cylinder. I expected a much<br dir="auto">larger difference between the two. Not sure what it should be but sone<br dir="auto">reason I expect 70 psi but I don't remember where that came from. But the<br dir="auto">7 1/2psi difference by itself tell me I need to tear into this tractor., I<br dir="auto">don't think. Tomorrow I can do the manifold air pressure test. If I can<br dir="auto">complete that. He results o<br dir="auto"> f that test will determine what I test next,<br dir="auto"><br dir="auto"><br dir="auto">Dean VP<br dir="auto">Snohomish, WA 98290<br dir="auto">"Socialism is a philosophy of failure, the creed of ignorance, and gospel of<br dir="auto">envy, its inherent virtue is the equal sharing of misery."<br dir="auto">..Winston Churchill...<br dir="auto"><br dir="auto">_______________________________________________<br dir="auto">AT mailing list<br dir="auto">AT@lists.antique-tractor.com<br dir="auto">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com<br dir="auto"><br dir="auto">_______________________________________________<br dir="auto">AT mailing list<br dir="auto">AT@lists.antique-tractor.com<br dir="auto">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com<br dir="auto"><br dir="auto">_______________________________________________<br dir="auto">AT mailing list<br dir="auto">AT@lists.antique-tractor.com<br dir="auto">http://lists.antique-tractor.com/listinfo.cgi/at-antique-tractor.com<br dir="auto"></body></html>