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Water Pump Installation

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nevets

nevets

Jedi Knight
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I am about to install my rebuilt water pump. According to the rebuilder (Michael Salter), if the mating surfaces are perfectly clean, sealant is not required. I see on a previous thread that some folks recommend using Permatex Aviation Sealant. I would hate to put everything back together only to discover a leaky interface. Just wondering what experiences others have had. Thanks!
 
You'll be using a gasket, right (I hope Michael wouldn't recommend not using one)? I've installed pumps both ways, with and without sealant, but I typically install using a light coat of Aviation Form-A-Gasket; It sets to a flexible glaze and, in many cases it makes the gasket easier to remove (sometimes intact). I wouldn't use an RTV/silicone sealant here, and definitely not one with 'adhesive' in the label.
 
Bob_Spidell said:
You'll be using a gasket, right (I hope Michael wouldn't recommend not using one)? I've installed pumps both ways, with and without sealant, but I typically install using a light coat of Aviation Form-A-Gasket; It sets to a flexible glaze and, in many cases it makes the gasket easier to remove (sometimes intact). I wouldn't use an RTV/silicone sealant here, and definitely not one with 'adhesive' in the label.
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I Will go along with BOB on the water pump installation Nevets.
 
Thanks for the replies. Yes, I will be using a gasket. Michael Salter included one with the rebuilt pump.
 
Hylomar is your friend ….the blue stuff .
 
More than one way to skin a cat...I've glued the gasket to the water pump with GaskaCinch with Hylomar between the gasket and block. I've also used Hylomar on the thermostat gaskets and the tank sender gasket without any problems. Having said that, I like Aviation Form A Gasket #300.

If gluing, always glue the gasket to the movable part.

I had a bad experience with Permatex Right Stuff - practically had to jackhammer to get it apart.
 
Steve had a bad experience with Permatex Right Stuff - practically had to jackhammer to get it apart.:
Yeah :
That's why we telling him to go blue.
 
My engine builder used it instead of a gasket on my BJ8's pan; said he didn't expect it would ever be removed. No sooner had I installed the engine than I clanged the pan on a high driveway; tried to weld in situ, made a mess. Took me days to get the pan off; had to saw it off with a serrated kitchen knife (broke one blade into the pan). My elbow hurt for months, I thought I'd permanently damaged it. Fortunately, I found a used pan on eBay that was in better shape than most I've seen, but was $300 (and I was glad to get it).

Did lots of internet searches on the 'right' stuff; found one photo where someone had used it on an SBC intake manifold. They hoisted the engine by carburettor studs and it hung in mid-air. My elbow is starting to hurt again just thinking about it.
 
I got the aviation sealant and will be installing the water pump later this week. Fingers crossed, no issues. Gotta get it back on the road to enjoy some sweet fall driving. Best time of the year for touring the countryside.
 
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