C1 water pump leaks

[Larry P.]

I can't get my water pump gaskets to stop leaking. After I jack the motor up and get the bolts started real good, my logic was to let it down so the weight is where it will be and then tighten. Should I tighten all the bolts and then let it take the weight or should it matter. My last attempt has the water streaming out the top left bolt hole.
LP

[Roy B.]

Re: C1 water pump leaks

Tighten them before leting it down

[John H.]

Re: C1 water pump leaks

Larry -

Are both sides of the engine mount bracket smooth and free of any pits in the gasket area? Use fresh gaskets (two on each side of the pump) with a film of sealer on both sides of both gaskets, and use thread sealer on the bolts.

It's easier to load and secure the "sandwich" if you use two threaded studs, one at the top hole on each side, load the "sandwich" of parts over the studs, install the two lower bolts, then remove the studs and replace them with the upper bolts; prevents wiping sealer off the gaskets or damaging them while you're trying to manipulate all the parts and get the bolts started.

[Bernard M.]

Re: C1 water pump leaks

Larry,

Be sure to use thread sealant on the bolts. Three of the four pass through into the water jacket and may leak unless sealant is used.

Regards, Bernie

[Larry P.]

Re: C1 water pump leaks

Is the Permatex sealer ok to use on the threads or do I need something else?
LP

[Larry P.]

Re: C1 water pump leaks

John,
Should I use two gaskets at all locations, 8 gaskets?
LP

[Bernard M.]

Re: C1 water pump leaks

Larry,

I use the high temperature thread sealant made by Permatex. It comes in a small tube.

Bernie

[John H.]

Re: C1 water pump leaks

Nope - four gaskets - one on each side of the engine mount bracket (two on LH side, two on RH side).

[Rob Dame]

Re: C1 water pump leaks

I don't know if you are using repro bolts but it seems like i remember hearing that some of the repro bolts are too long and will not tighten up.