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Ford 4.2L V6 water pump question #5418957 05/02/20 08:43 AM
Joined: Mar 2014
Posts: 9
civhatch90 Offline OP
OP Offline
Joined: Mar 2014
Posts: 9
Coming back to this awesome resource as my very amateur skills assemble this back together.

1. Do I need to apply any silicone based gasket maker to any of the mating surfaces if there is a gasket already included? Attached picture for reference of what the gasket looks like.

2. Recommended torque specs are 15-22 ft/lbs. But what if there is fluid on the threads such as oil or whatever else may be around? Should the torque spec be lower?

Thanks for the help!

Re: Ford 4.2L V6 water pump question [Re: civhatch90] #5418965 05/02/20 08:58 AM
Joined: Oct 2014
Posts: 1,862
Jimzz Offline
Joined: Oct 2014
Posts: 1,862
I use a very thin layer of Ultra RTV to both sides. Holds the gasket in place when bolting up and will fill in any micro damage to the metals the gasket may not fill in well.

A small half oz package is more than enough to do the job.


Re: Ford 4.2L V6 water pump question [Re: civhatch90] #5418970 05/02/20 09:03 AM
Joined: Jan 2013
Posts: 3,945
WyrTwister Offline
Joined: Jan 2013
Posts: 3,945
I know nothing about that make & model engine , but I have installed my share of water pumps over , maybe 50 years .

Have never used a torque wrench on a coolant pump . Just tighten it until it is tight .

I commonly use non hardening Permatex to " glue " the gasket to the removable part . Let it " dry " long enough to hold the gasket in place while getting everything lined up & then start installing fasteners .

If you ever have to replace it again , you throw away the old pump and do not have to scrape sealant from the engine .

God bless
Re: Ford 4.2L V6 water pump question [Re: civhatch90] #5418991 05/02/20 09:25 AM
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Chris142 Online Content
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Make sure to clean all the old gasket off the timing cover being carefull not to gouge it. Nobody torques that stuff. Snug by hand.

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Re: Ford 4.2L V6 water pump question [Re: civhatch90] #5419007 05/02/20 09:44 AM
Joined: Jan 2012
Posts: 433
nobb Offline
Joined: Jan 2012
Posts: 433
All manufacturers never recommend any RTV on top of gaskets as that could cause sealing issues. They can even deny warranty claims because of it. So just make sure the surfaces are clean with no pitting, and install dry.

It also takes almost no time to get a torque wrench so why not do it property. Clean the threads as best as you can and torque to spec.

Re: Ford 4.2L V6 water pump question [Re: civhatch90] #5419030 05/02/20 10:08 AM
Joined: Dec 2005
Posts: 14,241
kschachn Offline
Joined: Dec 2005
Posts: 14,241
Yes, install it exactly as the manufacturer tells you to do so. Do you have a service manual? You may be able to find the information online, perhaps on Autozone's website.

1994 BMW 530i, 252K
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