Thread: P38 Water Pump Condition

Where exactly is the coolant coming out? If it's from the overflow that would indicate excessive pressure in the system.

I replaced my water pump last weekend, I was suspicious of it after the engine got rather hot after a very steep climb.

I now note that the difference in temp between the watchdog and gauge is down to about 2 degrees instead of 5, so it has made a difference.

You can take the poly-v belt off and check the water pump bearing, if there is any play it's worth replacing IMO

Steve

Hi Steve,

I should have been more specific, it's the plastic pipe from the top of the radiator to the exp tank, with the cap off at idle there's a very slow dribble.

With the belt on, I can feel slight play in the bearings, think you've answered my question think I will replace the pump a be safe. How long did the job take you Steve?

Gday Hammer.

I replaced mine a while back when I replaced the radiator, straightforward job..probably around 2 hours just takin it easy...one can't rush these things!

I got the spare one with a bunch of other spares & stuff from a bloke who no longer owned a Landy...the poor sod

Ping me a pm if interested.

Cheers.

Thanks Timmy,

Two hours is reasonable. Thanks for the offer but I have a Thor

No probs mate...I'm not sure if the water pumps are the same, they're the same block so I suspect they may well be, I just don't know it the pulley arrangement is the same.

I'm sure someone with such knowledge will chime in

Did a quick search, they're all the same.

image.jpg

The water pumps are all the same, though there are some with brass impellers.

2 hours is a good estimate, mine took a bit longer because someone had used gasket cement when the old pump was put on and it took some time (with kerosene and a norton soft abrasive wheel on a drill) to clean off the old gasket.

We2 used a light spray of hylomar when we put it back on but often i just use a dab of grease to hold the gasket in place while bolting it up.

That hose you refer to is the bleed hose, it seems normal for a small stream of coolant to come out of there

Steve

Good info there Steve.
Yep, I use the old grease on the paper type gasket trick too, I think it helps produce a good seal & of course makes it easier to remove next time....not like when someone has used an RTV sealant or something.
Also give all the bolt threads a good clean up with a wire brush, then use an anti-seize compound. And don't over tighten them, remember, it's only aluminium, use a torque wrench if you have one, can't remember the value, but it's not much, something like 16 ft lbs....