Allis B Starter Quandry
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=203506
Printed Date: 22 Nov 2024 at 10:16pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Allis B Starter Quandry
Posted By: LittleB
Subject: Allis B Starter Quandry
Date Posted: 04 Oct 2024 at 4:56pm
| The starter drive broke on my B. When I replaced it I noticed damage on the corners of the ring gear. Now the new starter drive doesn't always fully engage the ring gear. I noticed when reinstalling the starter that the alignment hole in the housing set the starter back by almost a quarter of an inch away from bottom out position toward the ring gear. Is this normal. If not can I fill the back end of this hole and redo the hole to push the starter forward. |
Replies:
Posted By: steve(ill)
Date Posted: 04 Oct 2024 at 5:09pm
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i have drilled new holes in the housing to ROTATE the starter to another postion. I have not seen one that was off on the DEPTH.... but i guess thats possible... YES, it should be the same as the OLD STARTER. another thing is the ENGINE always stops in the SAME POSITON ( 80% of the time)... so there will be 4-5 teeth in a row that show much more damage on the ring gear than the rest of the teeth.. You might need to rotate the ring gear on the flywheel or install a new gear if the teeth are rounded off too bad. ------------- Like them all, but love the "B"s. |
Posted By: dfwallis
Date Posted: 04 Oct 2024 at 5:24pm
I'd recommend as Steve says, but if something was to be modified, I might be more inclined to mod the starter itself. Perhaps there is a washer at the end of the throw mechanism that could be a little thinner. Perhaps the collar on the starter could be taken to a machine shop and shaved a tiny bit (I doubt 1/4 inch is a good idea). You want to keep it nice and square. And of course ensure that the starter mounting hole is thoroughly cleaned. If you mod the tractor, then you (or somebody) may be forced to create shims to return to the original depth in the future (not really that big a deal and probably not very likely). ------------- 1952 CA13092 |
LittleB wrote:Posted By: steve(ill)
Date Posted: 04 Oct 2024 at 6:41pm
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Yes, Gary is right.. i ment drill the taper hole in the Starter HOUSING, not the bell housing.. ------------- Like them all, but love the "B"s. |
Posted By: steve(ill)
Date Posted: 04 Oct 2024 at 6:48pm
Rereading you post, you might mean when you install the new starter, that there is a small gap between the bell housing and the starter case and it COULD be pushed in another 1/4 inch... YES, i have seen that.. What you want is for the distance from the end of the nose piece to the hole in the starter to be the SAME as the original... The starter does not necessarily push in as far as possible.. The taper hole is a Locater point.
 ------------- Like them all, but love the "B"s. |
Posted By: dfwallis
Date Posted: 04 Oct 2024 at 6:57pm
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Ah, I assumed that the starter would be against the end of the mounting hole, but if not, then "relocating" the lock screw hole in the starter might work fine. ------------- 1952 CA13092 |
Posted By: LittleB
Date Posted: 04 Oct 2024 at 7:46pm
| Steve the starter that you posted in the fixture shows to be much closer then mine. I plan to reposition the hole on the starter to move it to a more favorable position. There is more wear on one section of the ring gear. |
Posted By: LittleB
Date Posted: 04 Oct 2024 at 7:48pm
| I meant picture, not fixture. |
Posted By: steve(ill)
Date Posted: 04 Oct 2024 at 8:46pm
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how does the measurement from the nose to the hole compare with original starter ? ------------- Like them all, but love the "B"s. |
Posted By: LittleB
Date Posted: 05 Oct 2024 at 8:21am
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It's the same starter that was on the tractor when I bought it. My theory is and I'm not an expert, is that the old drive prior to breaking and damaging the ring gear wasn't engaging fully. I only noticed after replacing the drive, then reinstalling the starter that I needed to pull the starter back almost a quarter inch to align the bolt with the the starter hole. |
Posted By: ORBill
Date Posted: 05 Oct 2024 at 1:06pm
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LittleB I sent you a PM
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Posted By: dfwallis
Date Posted: 05 Oct 2024 at 1:41pm
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My CA has about 1/4 inch gap. I was surprised at how good a shape the ring gear was, but could be because we rarely had a functional battery and either hand cranked it or parked it on a hill. :) ------------- 1952 CA13092 |
Posted By: BrianC
Date Posted: 07 Oct 2024 at 8:42pm
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When I reworked the C 13 years ago, I noticed I had the failure to engage issue also. Just as you describe, a sometimes proposition. I did push it in some, hand cranked the engine to check for clearance. It did start working correctly. Who knows, rebuilt starters and such things change. I measured my gap for you, starter to bell housing it is .150. I did re-dimple the starter.
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Posted By: Steve in NJ
Date Posted: 08 Oct 2024 at 7:15am
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Sounds like a different nose cone was installed at one time or a reman Starter with the wrong nose cone. I've had Starters come in for repair that had the wrong nose cone installed sometime in its life which messed up the drive alignment. It happens sometimes especially with replacement Starters. The books aren't always correct. That's why I don't sell Starter and Gennie parts individually. To many variables in these old units..... Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |