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Allis Chalmers Discussion Forum
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advise

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Bob with a B

02-01-2007 13:36:35




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I just tried to start my B Allis,fresh overhaul,newsleeve and pistons,bearingss on mains and rods,she's a bit tight but not bad,can turn her over with the crank. The dang 6 volt starter doesnt have what it takes to get her started. What if I hooked a 12 volt battery directly to the starter bypassing the 6 volts system completly to get it started the first time? No help around to try to pull it. And its to icy to get any traction anyway. I know you are gonna tell me the engine is to tight and there is a prob,all clearances have been plastigauged and checked twice to be sure after it wouldn't start and are near perfect. Just the new pistons in the new sleeves are causing the drag I think ,could be a bad starter also?.

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wdTom

02-02-2007 19:20:36




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
About your clutch release problem, if the clutch shaft fits too tight in the pilot bushing in the end of the crankshaft it can cause this sticking that makes in impossible to get it into gear without grinding gears. Had this problem after switching engines around one time. Had ot emery out the pilot bearing in the crank. Doesn't take much to make it stick or run free. If the clutch seems to be releaseing I would check this out. Did you change the bushing in the crank? or something else in this area?

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steve(ill)

02-01-2007 18:21:58




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
there is a 3 inch hole under the clutch. look up and see if the clutch rod is pushing on the tangs and compressing the springs. if not, screw the rod out a few turns untill it pushes and compresses the springs. --- if it is pushing the springs and the plates are just "stuck", pull the starter and spray laundry soap and water all over everthing with a weed sprayer. flush with the garden hose after several minutes. the rear crank shaft seal leaks and over 60 years will make the cluthc sticky.

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Bob with an allis B

02-01-2007 18:11:55




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
Got her started..... .....whew ,Runs like a kitten purring,oil pressure right in the middle of the gauge,checked top end and lots of oil getting up there so almost all is good..... just the dang clutch won't dissengauge ,split it and find out why is only option left I guess



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chalmersbob

02-01-2007 18:35:19




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 Re: advise in reply to Bob with an allis B, 02-01-2007 18:11:55  
just start it in gear out in the open and drive around with the cluth pushed in hit the brakes often, should free up the cutch. my friend had the same problm with his ib and this worked for him. Bob



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BCnT

02-01-2007 15:08:48




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
i been running a 6 volt system on 12 volts for over 25 years...stick a battery in it and start it up...if it wont turn over on 12v i'd suggest getting starter tested



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BDT in Minnesota

02-01-2007 14:41:11




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
Sounds like your cables, starter switch, or the starter itself need some attention; namely a good clean out, along with brushes and bushings..If you can crank that engine with the hand crank, the starter should be able to crank it as well.



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Kent of SW MO

02-01-2007 14:38:36




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
Hook your two 6 volts in series,for 12 volt. Connect to the starter will twist her tail. Since you have a mag for ignition the increased voltage will not be a problem. A 6 volt starter will last a long time on 12 volt if use in short bursts. A engine with a 6 volt starter powered by 12 volt will start quicker also.

Kent



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old

02-01-2007 13:44:48




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
Mag or distubutor type ignition??? If its a mag you can hook it up to 12 volts and have no problems and you don't even need to wrroy about if its 6 or 12 volt. If its a distubutor type ignition yes you can turn it over by hooking it up to the starter only and that will spin it over good also.

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Bob with a B

02-01-2007 13:58:11




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 Re: advise in reply to old, 02-01-2007 13:44:48  
It's a mag



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old

02-01-2007 15:11:08




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 Re: advise in reply to Bob with a B , 02-01-2007 13:58:11  
Well then just take the 6 volt battery out and drop in a 12 volt battery spin it over and get it started. If you have lights just make sure you don't turn them on. It will not hurt the genny either since the chargeing system will just see it as an over charged 6 volt battery and not try to charge it

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Bob with a B

02-01-2007 13:41:01




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 Re: advise in reply to Bob with a B, 02-01-2007 13:36:35  
Oh yes, I have two brand new 6 volt batteries hooked to it,one as a jumper. Hooked to supply 6 volts.



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