Replacing Radiator Hoses on 1997 4wd hardbody - Nissan Forum
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#1 Old Feb 11th, 2008, 02:25 PM
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Replacing Radiator Hoses on 1997 4wd hardbody

I'm going to buy replacements at Advance Auto, and going to go with either the Goodyear or Gates hoses. I'm trying out what I need to purchase.

The lower hose is the problem, and it has a slow coolant drip. But since I'm going to rip off one and dump in fresh coolant, I might as well do the upper too. Oh, while I'm doing this, is the thermostat easily accessible?

Advance lists many choices for the lower hose:

Part No. 21873
Gates Rubber Prods. Molded Coolant Hose
Radiator Coolant Hose: Lower; Without Power Steering; 1-Piece Hose

Part No. 21873
Gates Rubber Prods. Molded Coolant Hose
Radiator Coolant Hose: Pipe To Radiator; Lower; With Power Steering; 2-Piece Hose; Cut To Fit

Part No. 24022
Gates Rubber Prods. Straight Coolant Hose (Standard)
Straight Coolant Hose (Standard): Engine To Pipe; Lower; With Power Steering; Cut To Length, 3"

Part No. 25384
Gates Rubber Prods. Flexible Coolant Hose (Standard)
Flexible Coolant Hose (Standard): Lower; Without Power Steering; 1-Piece Hose


Part No. 52023
Goodyear Radiator Coolant Hose
Radiator Coolant Flex Hose: Lower (1 Piece)

Part No. L61293
Goodyear Radiator Coolant Hose
Radiator Coolant Hose: Lower (1 Piece)

Part No. L61293
Goodyear Radiator Coolant Hose
Radiator Coolant Hose: Lower (2 Piece) Cut To Fit.:
------------------

Sooooo, if memory serves me, coming off the engine, there is a short length of hose (a couple inches long) which connects to the longer hose, which in turn plugs into the radiator. I'd need p/n 21873 "Pipe to radiator" and 24022 "engine to pipe." Correct?

Mr. Pete
1997 Hardbody 4x4
1989 Prelude 2.0 Si
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#2 Old Feb 21st, 2008, 07:38 AM
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well, I now know why the hose was in two pieces. It was such a pain in the ass, that the original mechanic simply gave up and spliced a new hose-end onto the old one. The old hose-end was the failure point. Well, I think it was. More on that later. The service manual confirms it's a 1-piece unit, but the location of the hose-clamp.

Last weekend when I took to wrenching, I simply could not get a good angle on the hose-clamp as it was hidden behind the power-seering pulley. This was after ripping out the fan, radiator, raditor-shroud, and etc. After thinking to myself, "A dremel would be a good way to cut off this clamp," I saw the coolant-inlet.

I unbolted it instead. It's probably a good thing I did. For one, the inlet was pitted to hell, so that might have been the failure point. Also, it gave me a good opportunity to check the thermostat. The stamping on it read "96." So apparently it's the original piece, and long-overdue for replacement.

I ordered an OEM inlet and thermostat, and those should be in in a day or two. Hopefully by this weekend.

So, the purpose of this post is: Anyone replacing a lower radiator hose: just unbolt the coolant-inlet off the engine and replace the thermostat at the same time. You'll save yourself a big headache.

Mr. Pete
1997 Hardbody 4x4
1989 Prelude 2.0 Si
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