Trying to identify an engine

I have someone who is looking for a quote to restore a 1930 (we think) pickup, I'm trying to determine which engine is in it. Someone told me the Waukesha XA has no water pump, and the XAH does have one. I certainly don't see anything external to the block that looks like a water pump (I don't have the truck handy to see the other side of it)- but I'm thinking this is an XA:

Did these just have a convection generated current to run the water through the radiator? Also, this thing has been sitting parked for who knows how long- I've picked up several resources from elsewhere on the site as far as getting engine parts, but I'm thinking there's a good chance the transmission will have to be rebuilt/replaced (potentially a couple decades of sitting around without being coated in oil would seem to me as a potential danger to rust the bearings and maybe even gears to the point of seizing). Any tips on who would have parts/has experience rebuilding these?

Thanks in advance,

Tom

Tom

Most people who restore these old trucks do most of the work themselves as it is very hard to find anyone that wont charge an arm & leg to fix them.

This is what the engine should look like.

Yes the engine does not have a water pump it is what they call thermosiphon.

Trevor

try again

If the gear shift moves through the gears, there is a good chance that the transmission is OK, of course if it had high mileage it should be rebuilt, but transmission and engine bearings hold up well for a long time. Engines often get stuck from moisture coming in an open valve and causing rust in one or more cylinder walls. Jim

I have a 1928 international with the 6 cylinder and the motor was stuck for almost 20 year the person told me I bought the truck off . I used P B blaster spray and went through 3 cans and just kept on spraying the values and cylinder and it free it up plus the truck runs great. I hope the info helps.

What you have there looks like a 6 speed special. Does it have the 2 speed rear axle? The engine is definately a Waukesha Model XA. There will be a plate on the right side behind the carburetor. It may well run if you get the distributor and things tuned up. They are nearly indestructible. CAUTION don't turn the engine if the distributor is stuck as you will break the gears that drive it off the generator.