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H20 Water pump conversion

To: "Steve Allen" <dumpdude@pon.net>, <datsun-roadsters@autox.team.net>
Subject: H20 Water pump conversion
From: "The Belgian Roadster" <chriss@euregio.net>
Date: Wed, 6 Jun 2001 18:47:24 +0200
Hi all,
As told, I finally had time to compare both water pumps.
Click the link to see by yourself the differences.
http://www.schauff.be/water_pump.htm
Right one, with the bolt close to the hose connexion is 21010-20H25
former partnumber of
21010-78200...78202...78203...78225...78226...J5125 these normaly fits
the R16 engine(This is the number from www.carparts.com)
This waterpump was also used on Datsun 230 with H20 engine.
Left one, with the pipe is H20-Urvan build for high rmp partnumber
21010-R9025....R9026
The distances between the bolts are the same for both pumps.
Main difference is on the backing plate.
As you can see H20-Urvan has only one hole, more like U20, but does
not fit U20 because of bolt pattern.
Second difference is H20-Urvan is build for use with a visco-clutch
vent (that's why it has studs in front).

-----Urspr|ngliche Nachricht-----
Von: "Steve Allen" <dumpdude@pon.net>
An: "The Belgian Roadster" <chriss@euregio.net>
Gesendet: Dienstag, 5. Juni 2001 05:43
Betreff: Re: H20 Water pump


> Chris,
>
> Could you provide me with the part number for the H20-Urvan water
pump? I stroked my R16 to a 2 liter using the H20 crank. It would be
worth it to see if
> the water pump would bolt up to my R16. OEM pumps cost around
$120.00 USD for th R16. Thanks.
>
> Steve
> 67.5 stroked 2 liter
> 66 x 2
> RP, CA
> 311 Skid Marks

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