PS Pump...stump'd

[DTAYLOR]

So I buy the seal kit from CDan, and figure I'll just put new seals in it.

Now that it's time to do it, I wonder if it really needs it.

Has anyone else had a leaking PS pump? Did you do the whole seal kit or just the big o-ring that lies between the ft of the pump and the block?

My pump has given me no trouble with whining as seems common, so I don't want to borrow trouble.

My rig has 225k, and I'm doing a complete engine overhaul.

Thanks in advance!

 

[Romer]

A lot of times it's the hoses. Did you clean it off and verify it is the pump and where it is leaking. If it's a real slow leak, I personally would leave it alone.

 

[DTAYLOR]

Yah, I'm sure it's the pump. The biggest mistake I made on this was diagnosing it, and not recording the exact position of the leak, assuming it wouldn't be that difficult to re-seal.

If the hoses really are a "usual suspect", I'll replace them as well. Besides, new hoses and fittings will look real pretty under my newly (orange) powdercoated reservoir.

 

[Cruiser Jimmy]

I had a leaking PS pump. Search for rebuild power steering pump. I did a write up on it.

Here ya go. Someone FAQ'ed it.


https://forum.ih8mud.com/showthread.php?t=98211

 

[Scamper]

I don't think the big orqange o-ring is the greatest problem in terms of leaking--in fact, that o-ring shouldn't really get any PS fluid on it at all since it's external to the pump and fluid paths. It's mainly there to keep the crankcase oil in and the dirt out.

I think with 225K on your truck, I think the most likely place to get a leak would be the seal on the shaft which is behind the gear (you'll see that there's only one seal in your rebuild kit). If you're leaking here, the fluid will wind up in the crankcase. The other site I was told you'll find leaks is at the rear end of the pump; there is/are one or two o-rings that go on that end plate and if they leak, you'll get seepage at the rear of the pump.

 

[DTAYLOR]

J, great write up. One problem, mine is a 96 and different.

Scamper, you make good sense. No way the orange o-ring can leak a fluid it does not relate to.

My guess and best recolection is it was leaking at the rear of th epump, oh so slightly. Just enough to mess up my parking spot.

I guess I will just dive in. How hard can it be?

I'll do pics and a write up.

Thanks,

DTaylor

 

[Tools R Us]

It's not that difficult, just note, take pictures of how everything comes apart and reassemble the same way. Make sure to get the vanes in the same way they were, one edge is rounded and one is square.