How to clean up the water pump/manifold hose fittings... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**COBALT** · 05-31-2002, 01:51 PM

Before I put brand spanking new radiator and heater core hoses in my truck I'd like to clean up the water ports on the manifold, and the water pump. They're rusted and corroted as hell, and would basically make these new hoses worthless.

Since the connections are dry now I thought I'd just pull out the dremel and see if I can clean them up. Any better ideas? It looks like the connections for the heater core on the manifold and the water pump can be replaced with some new brass pressure fittings. Should I just yank them and replace vs. trying to clean them up? There's tons of junk on the outside and in the opening...

speeddemon · 05-31-2002, 01:59 PM

If it was me I would go ahead a change them. They only cost a couple of bucks and you will have the peace of mind that they want leak. just my 2 cents

O'l Buck · 05-31-2002, 02:04 PM

You'd be ahead to change them, but if you want to clean them up, I've used a wire wheel on a drill to remove all the rust and corrosion from the outsides of the fittings, and a die grinder with a roll pin and a piece of emery cloth to clean up the inside.

**COBALT** · 05-31-2002, 02:07 PM

Damn it I WANT them to leak! LOL just kidding.

Seriously, I'll probably do what Ol' Buck suggested on the lower radiator hose fitting on the water pump, but I'll replace the one on the manifold and on the top of the pump to the heater core.

I should just be able to get these at freaking Home Depot and some thread compound right? Looks pretty easy, unless they're special fittings...

05-31-2002, 01:51 PM	#1
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	How to clean up the water pump/manifold hose fittings... Before I put brand spanking new radiator and heater core hoses in my truck I'd like to clean up the water ports on the manifold, and the water pump. They're rusted and corroted as hell, and would basically make these new hoses worthless. Since the connections are dry now I thought I'd just pull out the dremel and see if I can clean them up. Any better ideas? It looks like the connections for the heater core on the manifold and the water pump can be replaced with some new brass pressure fittings. Should I just yank them and replace vs. trying to clean them up? There's tons of junk on the outside and in the opening... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

05-31-2002, 01:59 PM	#2
speeddemon Registered User Join Date: May 2002 Location: lexington,South Carolina Posts: 158	If it was me I would go ahead a change them. They only cost a couple of bucks and you will have the peace of mind that they want leak. just my 2 cents __________________ 69-C10 LWB 71- fleetside shortbed It's a shame stupidity isn't painful Never play leapfrog with a unicorn

05-31-2002, 02:04 PM	#3
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	You'd be ahead to change them, but if you want to clean them up, I've used a wire wheel on a drill to remove all the rust and corrosion from the outsides of the fittings, and a die grinder with a roll pin and a piece of emery cloth to clean up the inside. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

05-31-2002, 02:07 PM	#4
COBALT Senior Member Join Date: Sep 2001 Location: Seattle, WA, USA Posts: 5,817	Damn it I WANT them to leak! LOL just kidding. Seriously, I'll probably do what Ol' Buck suggested on the lower radiator hose fitting on the water pump, but I'll replace the one on the manifold and on the top of the pump to the heater core. I should just be able to get these at freaking Home Depot and some thread compound right? Looks pretty easy, unless they're special fittings... __________________ '69 3/4 ton C20 2wd-350ci/TH400 '69 3/4 ton Custom 20 2wd-350ci/4sp Manual '99 2wd 5.7 Chevy Tahoe Seattle, WA.

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