Water pump bolts torque?

[bruceshibley]

Hi i am bolting on a new water pump today and do not know what to torque the bolts to. there are two sizes, one uses a 10mm socket and the other uses and 11mm socket. also should i use hyrlomar or some sort of sealant in between with the gasket? thnaks in adviance to anyone who can help me on this...

 

[Chris-St Louis]

There is one bolt has poured coolant out when you pulled it off. That bolt I usually put teflon on.
As far as how tight, Dunno the number off the top of my head, but it is very forgiving.
I tightened 100s of just to "Tight" and havent had any come back leaking.

 

[bruceshibley]

thnaks, i was thinking around 90-100 inch pounds. maybe a little more on the 11 mm ones. and i did think i should put some sealant on those threads. thnaks again for your help. but no hyrlmar on the gasket itself? or silicone?

 

[Chris-St Louis]

Nope.

Put the gasket on dry, it works well.

The Rover OE one is really nice, but I've used aftermarket gaskets with no problem.

 

[Jaime]

I just changed my water pump yesterday, and I used the old gasket, so I put a bead of Hylomar on it and so far no leaks.

Since these are steel bolts going into an aluminum block, I just tightened them to tight, but not really tight and put a dab of Hylomar on the threads to keep them from vibrating out.

I think the last time I used a torque wrench was on a cylinder head....

 

[DiscoDave]

18ft/lbs I think...... but I'll go and check....

 

[DiscoDave]

21 ft/lbs (28Nm) for petrol, 19 ft/lbs (26Nm) for diesel.
My manual also ways to use thread-lock on the long bolts for the petrol.