Le Roy engine swap

[Anonymous-0]

I have a field chopper with 4 cyl Le Roy gas engine as power unit. I'm wondering if block assembly of Le Roy is inter-changeable to use in Allis Chalmers WD-WC-WD45 Series tractor. I would expect to use Allis Chalmers tractor fly wheel radiator exhaust manifold, etc to complete installation. Any information would be appreciated. Thanks.

 

[Jerry Coulter]

I put a LeRoi in my WC years ago, it fit right in. I didn't change the manifold. It really powered up the mix mill, but the extra stress ate up the transmission shaft that drove the PTO.

 

[greygoat]

Allis Chalmers built engines for LeRoi. They
were the same as WC, also used in cotton pickers
and small road graders. See the book, "Allis
Chalmers Construction Equipment" from library
or bookstore for details

 

[Tradititonal Farmer]

I have swapped them with no problem LeRoi engines tend to burn more fuel and the internatals are different from the AC set up.

 

[Anonymous-0]

thanks for replies on Le Roi engine. I see there is a plate stamped with bore and stroke listed as 4 x 4 1/2 on side of engine . Allis Chalmers lists that spec. for wd 45 Engine is also set up with magneto. I removed valve cover to look at valve rocker assy and noted the valve springs and what looks like rotator assy are substantially bigger and heavier compared to standard AC head I have on work bench perhaps intake valve size is larger and that would probably account for slightly higher fuel consumption . I hope to get the timing correctly set and crank it up
Engine was last run in late 1960's