Water pump to sump connection

Michael3006

New User
model 1520 tractor built August 4, 1992.
This Tractor is one of the long term problems in my work's repair shed, or so I am told. I did see it run well during the first few months of 2016. Then I was off work for an extended time, when I got back it was in pieces and the tale I was told was that it had overheated, and the valves had struck the pistons.
On examination and with the help of people here I was led to the ID plate and its meaning. I had originally thought it was a 1910.
I have started to put it back together just to see that all the parts are present and the only bits missing so far are a couple of valve spring retaining collets.
Now to the question.
WhenI looked at the water pump it had been coated with thick blue paint on the mating surface same as on the outside of the engine block, so when it was in place there was a layer of paint then the gasket then more paint on the mating surface of the block. Could this have allowed coolant to be forced into the oil sump? As their was a large volume of coolant in the sump when I checked.
 
This is the engine as it was when I got back to work, I posted it here before wrongly ID'd as a Ford Sibaura 1910. It will be a back burner project behind 4 others.
a247626.jpg
 
I don't think the paint on the back of the water pump could be the reason there was coolant in the oil sump. The parts drawing shows a metal plate behind the water pump and gasket and the only opening in that plate is the port for the coolant. And there's another gasket behind the plate. The only other port behind that plate is in the head and that has a welch plug in it. It looks like the only place coolant could go if anything leaked is to the outside.

parts drawing for oil pump, water pump and alternator

Since you say it overheated I would suspect that the head warped and/or the head gasket leaked, and that's how the coolant got into the oil.
 
Thanks for that diagram, I must have missed that plate behind the water pump, all the small parts have been shoved into a couple of 25 litre
plastic bins left at the back of the tractor. I appreciate it, you may have saved me an awful lot of effort for no benefit.
Mick
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top