Waterpump failure

SD diesels were widely available in the US in the 1981-86 Datsun/Nissan 720 pickups, and in Canada through '87 in the D21 pickup.

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philip
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Re: Best quality

#16

Post by philip »

Your partsman is going to examine the manufacture.

You're looking for the 'O' around the 'N' cast on the pump

Image

Image

(this is excessive play yet ... it had not leaked ... yet)
Last edited by philip 16 years ago, edited 1 time in total.
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"
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asavage
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#17

Post by asavage »

Philip's 1982 WP:
Image


=======================================================


Here's a SD WP I bought on eBay a few months back. It has a cast-iron body but does not impress me as a very good casting. In the last pic, note the bearing cartridge's wire clip to retain it in the housing -- and about 8mm clearance to the front! To me, that means the cartridge could slide to the front 8mm before the clip is effective.

I don't have an OEM WP handy (gave one to TDI_Joe, recycled the other one), but if someone has an OEM one off and loose, would you kindly send me a pic of the bottom (where the clip is shown on the last pic below)?

(click on any image for larger)
Image Image Image Image Image
Last edited by asavage 16 years ago, edited 1 time in total.
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
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asavage
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#18

Post by asavage »

According to Nissan FAST parts lookup program, the Water Pump for a 1982 (SD22) is:

(click on any image for larger)
21010-31W26, $173. One assumes this is for a new (not rebuilt) pump.
Image



The part No. is different for 1984 (SD25):
21010-09W25, $171.

Image
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
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asavage
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#19

Post by asavage »

asavage wrote:NAPA NWP559198 is out of stock -- I just checked.
The parts man I gave the part number to, he wrote down the wrong number.

So, the water pump (correct number: NWP 559198) is on its way to me from Portland -- I will receive it tomorrow Wednesday. I will take a picture of it and post the picture.

The fan belt is here in town already.

The extra water pump gaskets are a bit harder to find; he is working to find them. That may require an additional day or two.
Image
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asavage
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#20

Post by asavage »

Gaskets are on their way too.
Land-Rover SI
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Woooot

#21

Post by Land-Rover SI »

WOw.. thats such good news.
plenzen
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#22

Post by plenzen »

Is that a bearing clip/retainer or the top coil of the spring for the mechanical seal?

Paul
Retired Pauly
Problem with being retired is that you never get a day off.
1987 D21-J SD25 KC
KJLGD21FN
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asavage
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#23

Post by asavage »

Image
plenzen wrote:Is that a bearing clip/retainer or the top coil of the spring for the mechanical seal?
Looks to me to be a retaining clip.
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philip
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#24

Post by philip »

asavage wrote:.... snip---Looks to me to be a retaining clip.
This is the genuine Japan "N" item.
Image

This is the "N" item "clip" port.
Image
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"
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asavage
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#25

Post by asavage »

Got the WP, belt, gaskets today.

(click on any image for larger)
Image Image Image Image Image

The water pump is NAPA NWP 559198, $67, and looks a lot better than the other new WP I showed upthread. It comes with the fan clutch mounting studs and a block gasket.

WP-to-block gaskets are Fel-Pro 35353, $2 ea.
Image

Belt (non-A/C, non-PS) is 25-9375, $12.
Regards,
Al S.

1982 Maxima diesel wagon, 2nd & 4th owner, 165k miles, rusty & burgundy/grey. Purchased 1996, SOLD 16Feb10
1983 Maxima diesel wagon, 199k miles, rusty, light yellow/light brown. SOLD 14Jul07
1981 720 SD22 (scrapped 04Sep07)
1983 Sentra CD17, 255k, bought 06Jul08, gave it away 22Jun10.
Land-Rover SI
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I cant wait

#26

Post by Land-Rover SI »

Wow Al.

This looks so good. I can promise that Shreck will be so happy...

Yes my Land-Rover has it's own name :oops:

He is green.. like the swamps and scares the paint and chrome of all the fancy BMW.s , Audi and Mercedes because he is build like a tank :twisted:
zen
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Location: london uk

#27

Post by zen »

dont you find the sd22 is far to gutless for the landie??

( ithought my sd33 was far to gutless for mine before turboing etc)
turbo it

(sd33t home turbo set up if anyone is interested..)
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asavage
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#28

Post by asavage »

61 HP isn't enough? ;)

I've hauled some pretty good loads in my 720s. Fast is not always of prime importance. Economy is pretty good with the SD22.
Land-Rover SI
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Strong enaugh

#29

Post by Land-Rover SI »

About horsepower.

The original engine from 1956 had mearly 50 Hp.

The thing that makes my car get around in mother nature so perfectly is the gearbox, the low weight and short distance between the axels.

The weight of my 86" L-R is about 1600 KG ( about 3400 pounds )

When i now have 61 Hp with the enourmus Nm from a diesel engine i dont need anything more.

My car is not made to go 100 mph on the highway but i can do 5 mph in any terrain at nearly any angle.
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philip
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#30

Post by philip »

zen wrote:dont you find the sd22 is far to gutless for the landie??

( ithought my sd33 was far to gutless for mine before turboing etc)
It's about gears, Zen.
-Philip
Passed 08May2008
My friend, you are missed . . .

1982 Datsun 720KC SD-22

"Im slow and I'm ahead of you"
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