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Switching Engine Blocks On The Allis Chalmers B-10


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#1 trowel OFFLINE  

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Posted March 25, 2014 - 06:52 PM

Yeh, this generator was a nice find,

 

Switching cranks from the 23D in the Allis to the good running 233431 that had a bad Pincor gen-head.

Both cranks and rods were in good shape, the piston rings in the 233431 was in good shape but thinking a simple bore hone and new rings should be fine but more on that later.

 

Run in on the last picture, oil change next.

 

 

 

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  • boyscout862, New.Canadian.DB.Owner, Gabriel and 2 others have said thanks

#2 New.Canadian.DB.Owner ONLINE  

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Posted March 25, 2014 - 07:23 PM

Awesome idea, putting your old crankshaft in a replacement block.  Must remember that one.


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#3 petrj6 ONLINE  

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Posted March 25, 2014 - 07:30 PM

     The engine that was in it was to far worn out?  I knew it smoked but did not think it was that bad,  Good find on the other motor, I have friend with the exact same generator setup in his basement, he still uses it.


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#4 tractorskipper OFFLINE  

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Posted March 25, 2014 - 08:54 PM

Wow, wasn't that portable out door work bench kind of cold?

That swap should work fine.

I have a hardly used, B&S opposed twin16HP with that tapered shaft.  I saved the end of the gen shaft that fits it, just haven't come up with a project for it yet.

 

Skip


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#5 Gabriel OFFLINE  

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Posted March 25, 2014 - 09:00 PM

Looks good!


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#6 trowel OFFLINE  

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Posted March 25, 2014 - 09:52 PM

     The engine that was in it was to far worn out?  I knew it smoked but did not think it was that bad,  Good find on the other motor, I have friend with the exact same generator setup in his basement, he still uses it.

Scoring of the cylinder, heavy lip from ring travel, piston wobble led to some wearing of the piston skirt, ,010 overbore is needed, the block will be stripped, cleaned and completely rebuilt, the con rod and crank was changed at some point in it's life hence me swapping it out.

On saterday i should be snatching up another 23 engine for parts.

 

The 233431 engine is a 1966 with the newer magneto, will need rings at some point but everything internal is tight and in spec, run in this evening told me it is a good quiet engine, next step is re-ring the piston, hone the bore and it's ready for a lot of years of work.

 

 

Wow, wasn't that portable out door work bench kind of cold?

That swap should work fine.

I have a hardly used, B&S opposed twin16HP with that tapered shaft.  I saved the end of the gen shaft that fits it, just haven't come up with a project for it yet.

 

Skip

 lol,  so long as it is above 30 degrees im fine, im a field worker, most if not almost everything in done outside on a truck or trailer, natural for me i geass, lol,  car is in the shop up here anyways and did not want to pull everything out of the tractor shed for a few hour job, matter of fact i did not even bother with the ring compressor, just use my fingers and walk the piston into the bore, with new rings it is a little harder.






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