i have a 28'1988 barth motorhome that has a coolant heating problem have did several things to it but yesterday i discovered the engine water pump must be turning backwards [wrong way]my question , does cummings have a pumps the turn right or left
some information about this problem owned this motorhome about 8 years comply refurbished, had a employee that worked with me, after about a year moved the unit to a garage, the previous owner starter this project cut many wires when he removing the generator, it has been very difficult for me to restore the wiring, the wires for the oil gages temp gages were cut i have restored most of the wiring , about two months ago i got in the mood to finish this project, took the motorhome for a short drive and it ran hot up to 300 degrees according to the temp ,according to my hand held them it wasn'that hot 240 deg at thermast area, installed new manuel temp gage and oil gage, removed thermostat,run in my garage at middle and get above 180 deg, keep thinking han air lock in system, yesterday i finally proved it was complex full of water, front radiator, removed per radiator hose an cranked eng, discovered water pump not pumping water, removed water pump an have decided water pump is turning wrong direction,so my question is ,does cummings have a right and left water pump thanks for your help jeyyy

You didn't state which engine you have. But assuming a 5.9L I would guess not. I don't think this engine was ever produced as a left turning engine and since I have never seen a water pump turn the reverse of the engine.

Second if the pump was not working you would be boiling the coolant in the engine big time.

Actually, the water pump on the 8.3 Cummins turns opposite the crank...



That being said, I don't think there were opposite pumps used on the 5.9

sorry but i didn't know which engine my coach until late yesterday, the original paper work showed a 5.3 but after searching thru the papers i have showed the engine and trainie was replaced in early 1990 with 8.3 engine . i have removed the water pump but don't see anything wrong with it,removed the water pipe so i can flush all, they all seem to be clean, i will purchase new water pump today and reassemble today, then run to see if i held the problem

This is interesting, keep us posted on your progress...

An '88 28 foot has the engine and trans replaced in 90? With an 8.3 and a "front radiator?"
That is the only 28 ft with an 8.3 engine I have heard about...

Completely refurbished but wiring is messed up?

The photo shown is a 1995 8.3 Cummins in my Barth. You can see the part number on the pump. I just replaced the water pump.

see here:

https://www.barthmobile.com/eve...1087061/m/5233972397

Yes it sure is. Cummins didn't make the 5.9 until 1989. I also wonder what model Barth it is? just curious.
kenny

excuse me, I need new glasses. 1984 was the first model 6bt.

Did you try calling your local Cummins store? The guys in Springfield, MA have been very helpful as long as I give them the serial # of the engine.

Good Luck!