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1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#1
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Hi folks,

So after studying the manual and watching Ross' many helpful videos, especially this one:

https://www.youtube.com/watch?v=-MMpGPeswaI

I checked the endplay before disassembly using the method here around 11:00 in another one of Ross' videos:

https://www.youtube.com/watch?v=UNbjh_4eYF4

I found it be between 0.024 and 0.025, which is 0.010 too much (spec 0.010 to 0.015). So I will have to deal with that.

My biggest difficulty is that for the life of me I have not been able to separate the second turbine from the first turbine after removing the bolts. No amount of "tapping with a plastic hammer" in the manual seems to work. Any experience any of y'all want to share?

Apart from that, I have made progress in disassembling my converter. I have found it to be in reasonable shape so far, with a couple of mysteries.

1). When I took the turbine assembly out and exposed the clutch assembly, I found one of the clutch pressure plate spacers to be "hanging out" on the wrong side of the pressure plate, and in none-too-good shape. After removing the pressure plate I found two more spacers where they ought to be, but the 4th spacer either was forgotten or escaped as it's compadre had been attempting to do for some time.

2) I measured the piston rings as per the manual and found the large piston ring gap to be 0.019, which is out-of-spec compared to the manual's specified 0.004 to 0.013. So I will have to deal with that.

3) Does anyone know the code for the balance lugs? I think I have it right, but there is a chance I mixed up some of the balance lugs that were installed in 2 pieces at each location. I have the "thick ones" marked, but the thin ones which were underneath were not marked and I might have mixed them up. The locations were factory marked "A", "H", and "K", which I believe corresponds to the required thickness. As "A" was a single thin lug, I am o.k. there, but could have mixed up the thin lugs which were installed underneath the thick lugs in the "H" and "K" locations (see attached photo), which are fortunately very close to one another. Does anyone know what the codes correspond to?

4) The direct-drive clutch is pretty hard, I cannot dig my fingernail into it. So that needs to be relined.

5) Where according to the parts book I expect to find #3.618, ball-bearing assembly, I find instead a bronze thrust washer assembly with some vertical tabs (pictures enclosed). Maybe there is a service bullet I missed.

Thanks for your interest,

Jerome

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Posted on: 2020/11/28 0:25
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#2
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Have never quite figured out which ones got the ball bearing thrust and which ones the thrust washers.

To get the turbines apart, hold the whole assembly in the air by the reactor shaft with one hand and give a fairly sharp blow downward on the outer rim.

Posted on: 2020/11/28 7:38
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#3
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I wonder if this could be the bulletin in question re the change in thrust bearing.

Attach file:


pdf Size: 675.73 KB; Hits:

Posted on: 2020/11/28 9:51
Howard
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#4
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Thank you, Ross, that worked. As you said in your video, sometimes violence is the answer. Now I can see the "thrust washer with ears", which looks like it's in good shape.

Thank you Howard for pointing out the service bulletin. At least it goes some ways towards explaining things.

Posted on: 2020/11/28 10:40
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#5
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Well, I found the 1953 Service Bulletins where the Reactor Thrust Ball Bearing is replaced by the thrust washer, and the 1954 Service Bulletins where the thrust washer is re-replaced by the ball bearings.

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Posted on: 2020/11/29 6:46
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
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Thanks for finding that. My first thought is that the sequence was cost reduction>>service problem>>remedial action.

Yet, the vast majority of trans that have been through here over the years have the two steel washer and bronze washer combo and that is not usually a problem area.

Posted on: 2020/11/29 6:59
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Re: 1953 Ultramatic Torque Converter, Remove the 2nd Turbine? Plus some mysteries
#7
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Thanks for that insight, Ross. It sure looked like it wasn't a problem area, so that helps me decide what to do.

Posted on: 2020/11/29 11:30
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