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Tra-10D And An S-8D

1053 850 tra-10d s-8d engine swap pulley fit engine pto size

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#1 MyBolens1053 OFFLINE  

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Posted March 24, 2014 - 09:33 PM

Hello all,

 

Been a while since I have been up on GTT and it's getting close to planting season. So I come with a couple of questions.

 

My 1053 is down until I can get the crank and piston rod replacement for the TRA-10D Wisconsin motor.

The 850 is down until I can figure out why the clutch doesn't disengage. The 850 has a running S-8D Wisconsin motor and still mounted on the tractor.

 

I measured the footprint of both motors at 7 1/2" side to side by 4" front to back.

My TRA-10D has a 1" by 3"+  P.T.O. shaft. 

 

Does anyone know what the S-8D P.T.O shaft size is? I have looked through all of my manuals and can't find this spec.

 

Has anyone ever done this swap over? I only want to get the garden tilled and move the motors all back to where they belong.

 

ANY advice wil be helpful and appreciated.


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#2 farmerall OFFLINE  

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Posted March 24, 2014 - 09:51 PM

I think the crank is the same size between the two engines. At least they look the same to me. Overall the two engines are nearly the same other than the size of the piston and some other small differences. A lot of parts can interchange between the two. I would say the swap is pretty straight forward if both engines have the same ignition system.


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#3 MyBolens1053 OFFLINE  

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Posted March 24, 2014 - 10:10 PM

The key ignition looks to be the same wiring, Delco-Remy starter generator on both, points and condenser, coil, ... I think we have a match that will work. I am curious if the S-8D shaft center will be a the same height as the TRA-10D. Or will I need to adjust the spacer height?



#4 farmerall OFFLINE  

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Posted March 24, 2014 - 10:14 PM

The shaft height will be the same. Outside both engines are almost completely identical apart from the carb and a few small things. The main differences between the two are internal.


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#5 Bolens 1000 ONLINE  

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Posted March 25, 2014 - 08:17 AM

They will be a direct fit, just change over the pulley's and a few belt guards/sheet metal and you will be good to go.


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#6 boyscout862 ONLINE  

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Posted March 25, 2014 - 08:46 AM

It may be easier to just fix the clutch. My release forks wear alot at the pivot. Check these for wear. I figure a little welding can repair the wear. Good Luck, Rick
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#7 Bolens 1000 ONLINE  

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Posted March 25, 2014 - 08:48 AM

It may be easier to just fix the clutch. My release forks wear alot at the pivot. Check these for wear. I figure a little welding can repair the wear. Good Luck, Rick

 

:ditto: Even a a little slop in those yokes will cause the clutch to sag and not respond like it should.

I usually weld them and grind them down flat.


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#8 MyBolens1053 OFFLINE  

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Posted March 28, 2014 - 08:23 PM

:ditto: Even a a little slop in those yokes will cause the clutch to sag and not respond like it should.

I usually weld them and grind them down flat.

 

I spent a little time today on the 850 clutch system. I did find that the pedal bushing is a little sloppy and it looks like the yokes may also have some slop where the pins are.

 

I took some measurements for the clutch pedal bushing and I came up with the bushing needing to be a 5/8" ID x 1-3/8" length. Can anyone confirm this? If this is right TSC has this bushing fairly cheap.

Listed as:
S080208TSC
CAT. 0-1 L.A. BUSHING
TSC # 0268991

Bar code 0 87196 08208 9

 

About a $5.00 fix.

 

I saw on flea-pay a guy in NY selling the bushing with 2 washers and 2 cotter pins for $19.99 + $2.10 for shipping. I about choked on my coffee. I think I am in the wrong business. :rolling:



#9 Bolens 1000 ONLINE  

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Posted March 29, 2014 - 01:37 PM

I spent a little time today on the 850 clutch system. I did find that the pedal bushing is a little sloppy and it looks like the yokes may also have some slop where the pins are.

 

I took some measurements for the clutch pedal bushing and I came up with the bushing needing to be a 5/8" ID x 1-3/8" length. Can anyone confirm this? If this is right TSC has this bushing fairly cheap.

Listed as:
S080208TSC
CAT. 0-1 L.A. BUSHING
TSC # 0268991

Bar code 0 87196 08208 9

 

About a $5.00 fix.

 

I saw on flea-pay a guy in NY selling the bushing with 2 washers and 2 cotter pins for $19.99 + $2.10 for shipping. I about choked on my coffee. I think I am in the wrong business. :rolling:

 

I guess that was me! :D

There's more to the cost than meets the eye, those thrust washers are around $3.00 ea alone. If you dont need the washers drop me a PM. That bushing may fit from TSC but It looks to be a plain steel one which is not what Bolens used. The bronze are self lubricating and wont be Steel on Steel. 


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#10 MyBolens1053 OFFLINE  

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Posted March 29, 2014 - 06:54 PM

I guess that was me! :D

There's more to the cost than meets the eye, those thrust washers are around $3.00 ea alone. If you dont need the washers drop me a PM. That bushing may fit from TSC but It looks to be a plain steel one which is not what Bolens used. The bronze are self lubricating and wont be Steel on Steel. 

 

Hey Bolens 1000,

 

Not trying to take away from a man's table the need to eat. I guess I am still in the 1960's. My apologies for not reading the entire listing.

This whole economy thing sucks.



#11 Bolens 1000 ONLINE  

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Posted March 29, 2014 - 07:13 PM

Hey Bolens 1000,

 

Not trying to take away from a man's table the need to eat. I guess I am still in the 1960's. My apologies for not reading the entire listing.

This whole economy thing sucks.

 

That's alright, no hard feelings here.

My goal is to offer direct factory replacements that would have been used by Bolens themselves. Sometimes stuff thats a special size costs a bit more but there's not much you can do.


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#12 MyBolens1053 OFFLINE  

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Posted April 01, 2014 - 03:33 PM

Today's weather finally allowed me to put some mechanical time in on the 850. I did find that the yokes are worn. They are now in competent hands to weld and shape them back to new. I should have them back sometime tomorrow.  :rocker2:  I'm also looking to either move the S8-D to the 1053 or just clean this 850 up and use it as soon as the yokes are done I get them installed.

 

Now to see if I can attach a few hundred pics.  :deadhorse:

 

 

 







Also tagged with one or more of these keywords: 1053, 850, tra-10d, s-8d, engine swap, pulley fit, engine pto size

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