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Technical => Engine Tech => Topic started by: jpc647 on January 30, 2011, 07:40:16 PM

Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on January 30, 2011, 07:40:16 PM
As many of you know I've been chasing a problem with my temperature gauge in the car. I'm looking to install and aftermarket gauge semi-permanently to do some comparisons, but I don't have a place on the intake to install the sending unit for the gauge.

My only thought was to find a thermostat housing that has a pre drilled and tapped hole in it where I could put the sender. I called 2 parts stores today, and they didn't seem to know what I was talking about. Does anyone know where I can get one? I don't want an expensive billet aluminum or anything, looks don't matter too much, just need the extra hole. Anyone know?
Title: 5.0 Thermostat Housing with Extra Hole
Post by: hypostang on January 30, 2011, 08:57:56 PM
Auto Zone part number 814831 Compressor Works  brand

  Park Ave Store in  Worcester has one in stock
Title: 5.0 Thermostat Housing with Extra Hole
Post by: 1badcougar on January 30, 2011, 09:01:07 PM
I drilled and tapped my housing. I believe I tapped it with 3/8" pipe threads. I put my factory sender in the housing and my aftermarket gauge where the factory sender was.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on January 30, 2011, 09:12:29 PM
Quote from: hypostang;351283
Auto Zone part number 814831 Compressor Works  brand

  Park Ave Store in  Worcester has one in stock

Believe it or not, that's one of the stores I called.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on January 30, 2011, 09:12:54 PM
Quote from: 1badcougar;351284
I drilled and tapped my housing. I believe I tapped it with 3/8" pipe threads. I put my factory sender in the housing and my aftermarket gauge where the factory sender was.

Really!? It didn't crack? I figured it would have.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: hypostang on January 30, 2011, 09:31:11 PM
Quote from: jpc647;351288
Believe it or not, that's one of the stores I called.

I'm not saying they have rocket scientists behind the counter LOL ,, give them the brand and part number and you will get what you need
 and it is showing to be only $10 and change
Title: 5.0 Thermostat Housing with Extra Hole
Post by: 1badcougar on January 30, 2011, 09:31:52 PM
It did not crack because I did not over tighten the fitting into the housing (sealed it with silicone). I drilled the whole through where it looks as if there was to be a hole. Then I used the 3/8" or 1/2" pipe thread tap (don't remember which size). I was taught to run the tap in leaving 7 teeth showing at the top of the tap for pipe thread because these are tapered. I realize not everyone has access to pipe thread taps.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: Aerocoupe on January 30, 2011, 09:56:11 PM
If this is the one for an 87-95 Mustang 5.0 then O'Reillys has them as well.  Its a Murray brand with P/N 84884 and runs about $12.  Have one on both cars and they seal up and have the threaded hole in them you are looking for.

Darren
Title: 5.0 Thermostat Housing with Extra Hole
Post by: bigbada1 on January 31, 2011, 09:40:59 AM
Get one for an F150 5.0 they have the whole you are talking about
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jcassity on February 01, 2011, 08:31:37 AM
remove your single wire red slip on boot sensor and install the aftermarket sensor there.
this is just a test so why over complicate simple stuff.  you already know how the old one acts so why not just swap it out for temporary.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on February 01, 2011, 09:23:14 AM
Quote from: jcassity;351418
remove your single wire red slip on boot sensor and install the aftermarket sensor there.
this is just a test so why over complicate simple stuff.  you already know how the old one acts so why not just swap it out for temporary.

My thought was if I'm going to install it, I know there is a problem, I might as well make it permanent. Seeing as when I turn the blower motor on high, I can see the temp gauge move, I'm thinking it's probably not something with an easy fix, and may need to wait until it's warm out. In the meantime, I don't want to be without a temp gauge.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on February 01, 2011, 09:53:13 AM
... nevermind
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jcassity on February 03, 2011, 03:53:09 AM
cool, lets see what you find.
Title: 5.0 Thermostat Housing with Extra Hole
Post by: jpc647 on February 03, 2011, 08:24:45 AM
Quote from: jcassity;351676
cool, lets see what you find.

I will keep you updated. As soon as the snow stops, I need a day to shovel everything out, and then I can install it. But at this rate, it may be a couple of days. :/