Chris, if the backing plate can be removed
would you see any difference on the impeller?
I know that this has been a problem on some
L-series waterpumps if the impeller is made
from stamped sheetmetal or a real casting.
The stamped sheetmetal type has not been
okay on high output L-series engines.
Thomas
The Belgian Roadster wrote:
> 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
--
<><><><><><><><><><><>
Thomas in Sweden
Nissan Silvia #319
Nissan Silvia #293
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