New Water Pump
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Logistics Pro
Joined: Aug 2009
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From: Arizona
New Water Pump
Finally installed my new FoMoCo water pump I bought a couple years ago after snooping around with my new inspection camera and finding the telltale trail out of the weep hole. Only problem is a slight leak at the billit stat housing as I didn't have a new gasket for the 203 thermostat (stat is only a few months old) and even put a dab of water pump sealant on but still leaked. I'll head out to O'reillys tomorrow to see what I can get.
I also changed the idler pulley and the tensioner. I got the USA made Dayco tensioner but I noticed it is a good bit smaller than the OEM, anyone notice that?
The fan nut was a buggar till I remembered my home made pulley holding tool. I made that in a barn with a cutting torch and a grinder 2,500 miles from home when I had to change the pump on my old 6.9 about 25 years ago. Just flipped it over and drilled/cut to fit the 7.3. Not pretty but a lifesaver.
I also changed the idler pulley and the tensioner. I got the USA made Dayco tensioner but I noticed it is a good bit smaller than the OEM, anyone notice that?
The fan nut was a buggar till I remembered my home made pulley holding tool. I made that in a barn with a cutting torch and a grinder 2,500 miles from home when I had to change the pump on my old 6.9 about 25 years ago. Just flipped it over and drilled/cut to fit the 7.3. Not pretty but a lifesaver.
More Turbo
Joined: May 2016
Posts: 717
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Nothing wrong with homemade Tools! Necessity is the Birth of Invention. Sure beats the Mortgage I paid the Bread Trucks over the years!
3 years on the shelf eh? Never got around to it? Or, just stocked Item?
I used Black RTV on every T-Stat housing I ever worked on with no come-backs (on those anyway
)
I don't believe the Tensioner Pulley being smaller is in any way an issue. So, Long as the Spring is in Good Shape.
3 years on the shelf eh? Never got around to it? Or, just stocked Item?
I used Black RTV on every T-Stat housing I ever worked on with no come-backs (on those anyway
)I don't believe the Tensioner Pulley being smaller is in any way an issue. So, Long as the Spring is in Good Shape.
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Logistics Pro
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
Nothing wrong with homemade Tools! Necessity is the Birth of Invention. Sure beats the Mortgage I paid the Bread Trucks over the years!
3 years on the shelf eh? Never got around to it? Or, just stocked Item?
I used Black RTV on every T-Stat housing I ever worked on with no come-backs (on those anyway)
I don't believe the Tensioner Pulley being smaller is in any way an issue. So, Long as the Spring is in Good Shape.
3 years on the shelf eh? Never got around to it? Or, just stocked Item?
I used Black RTV on every T-Stat housing I ever worked on with no come-backs (on those anyway
)I don't believe the Tensioner Pulley being smaller is in any way an issue. So, Long as the Spring is in Good Shape.
I carried a spare with me for travel in Mexico hence the storage time.
One thing that concerns me is RTV getting into the coolant passages of the oil cooler.
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Logistics Pro
Joined: Aug 2009
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From: Arizona
Well I gave up the billit housing and went back to the OEM stamped steel. The billit looks nice but I can't stand leaks and I don't want to keep putting silicone where it can get into the coolant and the oil cooler. New o ring, OEM housing, no sealant, 110 inch pounds, no leaks.
I love my 203 stat in the winter but not so much in the summer so I plan to change it semi-anually, no sealant will make it simpler.
I love my 203 stat in the winter but not so much in the summer so I plan to change it semi-anually, no sealant will make it simpler.
Lead Driver
Joined: Jan 2007
Posts: 6,708
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From: Kiowa CO
Interesting about the billet housings not sealing properly. I've had mine for a number of years after the stock stamped housing got warped and started leaking. I'll have to look at mine to see if there's any issues.
FTE Leadership Emeritus
Joined: May 2014
Posts: 27,346
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From: Lake Hartwell, GA
The billet housing on my truck and new water pump started leaking about a year after installation. It was an easy fix though, I put a very thin film of sealant on the outer surface area of the pump, let it sit for 5 minutes, then remounted the billet housing. It has been water tight for 2 years now.
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