Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

Go to Thread: PreviousNext
Go to: Forum ListMessage ListNew TopicLog In
Goto Page: 12Next
Current Page: 1 of 2


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Electric water pump, Rover V8
Posted by: Roverbeam
Date: June 09, 2021 06:19PM

Hi, Iím slowly making a build plan for the engine in my garage. My plan is to make it as affordably full-race as my resources allow, without making it undrivable for weekend jaunts in the country.

I havenít torn the motor apart yet, so can anyone familiar with the stock WP picture how it could be deleted? Just a blanking plate, or remove the guts of the pump and put the old cover back on? Iím attracted to the HP savings, as well as easier small-car packaging by mounting the WP remotely. (With an electric fan, Iíll just have the alternator and oil pump on the front of the engineÖ)

Reasonable idea, or any thoughts against?
Thanks!
-Chad


40indianss
don foote

(83 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: 40indianss
Date: June 10, 2021 01:44AM

I have a 4.6 with the intermediate cover and am considering using a pierburg electric water pump so as not to use the serpentine belt. I was thinking about gutting the old water pump also. Will keep watching your efforts as a possible solution fo my situation


turbodave
dave cox

(101 posts)

Registered:
04/30/2018 03:00PM

Main British Car:
SD1

Re: Electric water pump, Rover V8
Posted by: turbodave
Date: June 10, 2021 08:48PM

The pierburg CWA 200 with the Tecomotive controller would be my choice. Both are excellent.


waterbucket
Philip Waterman
England
(107 posts)

Registered:
07/30/2011 01:08PM

Main British Car:
1972 MGB GT

Re: Electric water pump, Rover V8
Posted by: waterbucket
Date: June 11, 2021 03:31PM

I bought a brand new Pierburg CWA 200 water pump a couple of weeks ago for just £89 (about $125) search on ebay under "BMW electric water pump" there were two brand new genuine pumps for less than some used ones. Here is some useful info regarding them;
[www.miataturbo.net]
and from Tecomotive;
[tecomotive.com]
[tecomotive.com]



Edited 1 time(s). Last edit at 06/11/2021 03:48PM by waterbucket.


turbodave
dave cox

(101 posts)

Registered:
04/30/2018 03:00PM

Main British Car:
SD1

Re: Electric water pump, Rover V8
Posted by: turbodave
Date: June 15, 2021 11:32AM

Was that a genuine Pierburg you got for $125? That's a heck of a deal!


waterbucket
Philip Waterman
England
(107 posts)

Registered:
07/30/2011 01:08PM

Main British Car:
1972 MGB GT

Re: Electric water pump, Rover V8
Posted by: waterbucket
Date: June 17, 2021 02:09AM

Despite what some on the other forum might think I do not spend all of my time on Ebay, but I have a slowly diminishing list of parts that I still need and in the UK it's the place to go. Health and safety regs have effectively closed down the "pick and pull" scrapyards to be replaced with on the shelf second hand parts, already cleaned with prices to match.
A Pierburg water pump was one of the things that I wanted and one day I was looking and there were two genuine pumps not Chinese copies, one with a slightly damaged power socket was £89 + £5 shipping, the other was in an auction and I got it for £99 including shipping and it included a new thermostat assembly. Despite carefull wrapping it arrived with exactly the same damage to the connecter socket!


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Re: Electric water pump, Rover V8
Posted by: Roverbeam
Date: November 04, 2021 09:15AM

I wonder if Meziere will sell their Buick water pump backing plate separately?

For a remote pump (Iíve now got a Pierburg/Tecomotive combo, thanks to your recommendations), running a pair of water hoses to the holes provided seems like a neat solution. Or just cut the plate out of alum plate and drill/tap the needed holes, for that Ďfabricatedí vs Ďstore boughtí lookÖ

[www.meziere.com]



40indianss
don foote

(83 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: 40indianss
Date: November 04, 2021 10:31PM

Roverbeam can you post photos of your modifications and assembly mounted to the front cover. I still would like to convert my 4.6 to the pierburg pump. Seems to be a less cumbersome solution


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Re: Electric water pump, Rover V8
Posted by: Roverbeam
Date: November 05, 2021 10:41AM

Nope, it's all still a collection of parts and plans.
I did draw it though, based on the Rover cad model posted in the "pub" forum on this site. This is the stock water pump deleted, and something like the Meziere backing plate installed, to which the remote water pump's outlet will be plumbed, into the two large holes shown on the blue plate:
Meziere WP backing plate.jpg


DiDueColpi
Fred Key
West coast - Canada
(1333 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Electric water pump, Rover V8
Posted by: DiDueColpi
Date: November 05, 2021 01:44PM

If it where my engine, I would build a block off plate out of 1/4 inch aluminum. Simple enough to do at home with a jigsaw and a metal blade. Rub some candle wax on your cut line and it will cut like butter.
I would then give it a single inlet located in the center, (where the center of the impeller used to be). The contours in the timing cover will evenly distribute the coolant to the west and east sides of the block.

Live like you mean it.
Fred


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Re: Electric water pump, Rover V8
Posted by: Roverbeam
Date: November 05, 2021 02:48PM

I wondered at using a single hole too, as I stared at the timing cover. I just figured Meziere had a good reason for their two holes.

I showed it Ďblue anodizedí so it would be clear which part from the Meziere link I was copying. I agree, for a simple plate, just cutting it out (and maybe sanding the edges, and maybe running an 1/8Ē radius router bit around the edgesÖ) would be just fine.


DiDueColpi
Fred Key
West coast - Canada
(1333 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Electric water pump, Rover V8
Posted by: DiDueColpi
Date: November 05, 2021 05:24PM

Nope, Meziere has two holes as it was originally designed to fit the small block chevy.
If you are using the Pierburg pump it has one outlet and would be unnecessarily complicated to split the flow.
If you're going the router route, (I would!) use a ball mill or pointed bit and jazz it up some. Mill some lines, sign it, draw naked people.
Whatever floats your boat.

Cheers
Fred


40indianss
don foote

(83 posts)

Registered:
08/01/2013 04:35PM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: 40indianss
Date: November 05, 2021 10:06PM

That sounds like a simple remedy to not have to use the serpentine belt system. It also would clean up the front of the engine. Thanks to both for a solution. Now to get a pierburg pump and some aluminum


turbodave
dave cox

(101 posts)

Registered:
04/30/2018 03:00PM

Main British Car:
SD1

Re: Electric water pump, Rover V8
Posted by: turbodave
Date: November 07, 2021 04:02PM

Hey Chad, You may want to make some actual measurements of your block/heads instead of relying on that CAD model. My experience having measured parts of it and compared to actual blocks, is that its a representation, and not massively accurate.


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Re: Electric water pump, Rover V8
Posted by: Roverbeam
Date: November 07, 2021 05:34PM

Oh I get that! The Ďblue partí is just the (representative) outline of the cad modelís water pump. Itís not what I would use to get a part made from Send-Cut-Send, nor would I print and stick it to a sheet of aluminum as a cutting guide. Thanks for looking out for me though!



67Alpine
Michael Morgan

(4 posts)

Registered:
09/16/2021 02:37PM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: 67Alpine
Date: June 12, 2022 08:14AM

Roverbeam, how did the project turn out? I too am planning to shoehorn a Rover 4.0 into an Alpine. (The engine is being built at the moment) I would love to hear more about issues encountered along the way.


Roverbeam
Chad McNeely
N.E. MO
(28 posts)

Registered:
06/09/2021 06:03PM

Main British Car:
Alpine S4 Rover 4.0

Re: Electric water pump, Rover V8
Posted by: Roverbeam
Date: June 12, 2022 09:54AM

Iím probably not far -if any- ahead of you. Iíve got 95% of my engine parts shopping list complete, the block and crank are still at the machinistís, and I havenít started the chassis mods (unless you count lots of hours scheming with cad software).

Iíve made a deal with my better half to finish a house project before devoting shop hours to the car build. So other than things that affect purchases or future plans (tearing down, cleaning and measuring, etc), Iíve just been shopping and scheming. Since I give myself a limited monthly budget for things like this, the longer I wait, the nicer the parts can beÖ


Old P5
Steve Robinson

(2 posts)

Registered:
07/02/2022 11:39AM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: Old P5
Date: July 02, 2022 11:52AM

After many years under a dust cover I've finally decided to get the thing running again. That said I've always intended to get rid of the engine driven pump and go electric, so this thread or any like it is of interest to me. Main annoyance will be that I'll need to come up with a solution for water to the offy manifold and the return from the heater. Any advice from anybody?


DiDueColpi
Fred Key
West coast - Canada
(1333 posts)

Registered:
05/14/2010 03:06AM

Main British Car:
I really thought that I'd be an action figure by now!

authors avatar
Re: Electric water pump, Rover V8
Posted by: DiDueColpi
Date: July 04, 2022 01:43PM

The fitting on the rear of the Offy manifold is hot water out to the heater core. The other heater line is the water return to the engine.
T it into the inlet side of the water pump or into the rad if you have an unused fitting on it.
The bypass port at the thermostat housing can be blocked as the electric pump has no need for it.


Old P5
Steve Robinson

(2 posts)

Registered:
07/02/2022 11:39AM

Main British Car:


Re: Electric water pump, Rover V8
Posted by: Old P5
Date: July 10, 2022 12:23PM

Thanks for the response. Appreciated. Given the extreme lack of space in the engine space, on reflection I've decided to just replace the standard pump for now. Curious thing though, when I removed the pump it appears that over the years the coolant has separated.... I know perceived wisdom is that this doesn't happen, but I'm seeing blueish crystals in the galleries. Anyone have a view on this and advice on getting rid of it?
Goto Page: 12Next
Current Page: 1 of 2


Sorry, only registered users may post in this forum.