730 Power steering problem

128 · Feb 12, 2017

I have an interesting problem with the power steering on my 730. It is gaining fluid from somewhere. The oil looks similar to the power steering fluid so thats no help. I do have to add engine oil occasionally but how would that end up in the power steering pump. Any ideas are appreciated.

DONMYEIL · Feb 12, 2017

The vent pump on the Governor end of the fan shaft needs rebuilt . This pushes engine oil into the steering pump .

128 · Feb 12, 2017

OK, thanks, makes perfect sense.. Any advice for this??? Or is it pretty straight forward?

Bob · Feb 12, 2017

Also, there's a double seal or two seals back-to-back in the PS pump.

Mite B some issues there.

Dan in Ohio · Feb 13, 2017

I agree, my 70 gas std was doing the same thing. Rebuilding the power steering pump solved the problem.

ET · Feb 13, 2017

My 620 did the same thing, rebuilding the power steering pump fixed the problem. The seal on the drive shaft side is a suction seal, when things go bad it pulls engine oil into the system.

128 · Feb 13, 2017

ok, looks like I will be rebuilding the power steering pump. Thanks much for all the help.

workstinks · Feb 22, 2017

Does somebody sell a rebuild kit or do you have to buy by line item?

buickanddeere · Feb 23, 2017

Could try a John Deere dealer .

jd2cylman · Feb 23, 2017

There used to be a rebuild kit. I always ordered individual parts, then I found the kit and started using it. I ordered one kit and the next time I went to order one, they were NLA. It's a shame too. The kit was nice. It had all the parts needed to overhaul the pedestal. No seals for the P/S pump tho...

730 Power steering problem

128

New User

DONMYEIL

Member

128

New User

Bob

Well-known Member

Dan in Ohio

Well-known Member

ET

Well-known Member

128

New User

workstinks

Member

buickanddeere

Well-known Member

jd2cylman

Member

Similar threads