782 gas/oil coming from breather
 

I bought a 782 that I previously owned. While it was owned by someone else they put another fuel pump on it and now when it starts oil/gas comes out of the breather hose and floods out the carb. I’m assuming they put the wrong fuel pump in it?

What fuel pump did they put in it ??

:bigthink:

That I’m not sure. I’m assuming an aftermarket

I would assume bad float, maladjusted float,.

As long as it is a low pressure pump it should not force fuel past the float.

Lets see a pic of it

How about a picture ??

:TTWWP:

I'm thinking if the tank is full and the tractor is parked on a slope nose downhill, it should run without a fuel pump. So I'd bypass the fuel pump and see if the problem persists.

I'm not too familiar with a 782, but in most equipment that indicates the needle valve is not closing.

Bad needle valve, stuck float, float not floating are some of the possible causes.

:IH Trusted Hand:

Bcdsfcret
 

I think you have two different problems
1. Your needle and seat in the carb is leaking.
2. The reed valve under the breather tube coming from the valve lifter is bad.
On all my 782s I install a fuel shut off valve just before the fuel pump. If you don't shut off the fuel all the fuel will fill up your engine crankcase with gas.
If the reed valve is bad your engine builds up internal crankcase pressure and will
blow oil out the breather tube.
Brian
:American Flag 1: