Hello to all of you in Chrysler/Dodge/Pymoth & DeSoto Land. Thank you Mr. Administrator who expedited my authorization.
Today's problem is identifying the 23 inch Dodge flat 6 that has replaced the OEM engine in my 1936 International Harvestor T-20 Crawler. This engine has been installed for many years going back to two previous owners. Now, the engine serial numbers appear to have been ground off of their rightful place on the left side of the engine near the #1 cylinder. I have examined the surface, free of paint, with a 10X glass and there are no numbers of letters remaining.
Since this is northern New Mexico, the donor vehicle may have been stolen hence the identifying numbers being ground off. There are clear wire brush marks on that surface.
So, I am searching for alternative methods of figuring out the engine model. On the right side at the bottom of the block is "D15". Now, there is a P15 and a D24. Does anyone know of a D15? Perhaps this does not mean anything.
The thermostat housing is a large bulbous thing like I have seen in photos of Chrysler Windsor. It is not at all like the Powerwagon thermostat.
Also, after brushing through many layers of engine paint, it appears the layer of paint closest to the iron is blue. Did Dodge or affiliates use a blue engine paint?
Any suggestions are appreciated. BTW, this engine has way too much power for this tractor. I have to really watch the RPM to keep it from flying down the field. While you probably don't often hear someone claim these old Dodge Flat six engines having too much power, remember that for me 7 to 10 MPH is about as fast as I want to go.
The OEM engine was a OHV 4 cylinder with 221 cubic inches, governed to 1,250 RPM. This flat six spins a bit faster. The installation is pretty neat meaning well done except they had to eliminate the oil filter to fit inside the frame. I suppose a remote filter and braided lines would be a good idea assuming the pump has sufficient pressure.
Thanks for reading this and I look forward to any thoughts you might have.