The Triumph Dolomite Club - Discussion Forum
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Electric water pump
http://forum.triumphdolomite.co.uk/viewtopic.php?t=36052
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Author:  new to this [ Sat Aug 01, 2020 8:24 pm ]
Post subject:  Electric water pump

How do most people mount a electric water pump / do you have to trim the subframe

Dave

Author:  Carledo [ Sat Aug 01, 2020 8:48 pm ]
Post subject:  Re: Electric water pump

You don't "mount" it as such, you just let it hang off the hoses! (it's not at all heavy) I have one so fitted on the drive, i'll take a pic or two tomorrow.

Steve

Author:  sprint95m [ Sun Aug 02, 2020 11:26 am ]
Post subject:  Okay........

Quote:
How do most people mount a electric water pump / do you have to trim the subframe

Dave
Although compact in size, it is heavy, so a Stewart pump has a mounting flange
for attachment on to a bracket.
Said bracket needs to be attached to the engine block.
You do not have to modify the body or subframe.

(There may be a bracket available off the shelf for a slant four but I haven't looked
because I think it is easy enough to make one (and I have plenty of suitable s/h steel.)



Ian

Author:  Carledo [ Sun Aug 02, 2020 8:24 pm ]
Post subject:  Re: Electric water pump

Ok so it depends whose pump you use, the Davis Craig pump is quite happy unsupported!

Steve

PS sorry, forgot pix had a lot on my mind with RBRR being postponed till next year as of today!

Author:  gmsclassics [ Mon Aug 03, 2020 7:48 am ]
Post subject:  Re: Electric water pump

As Steve said, Davies Craig pump doesn't need any further support than the hoses. Pic below is from my race car (which got driven very hard) and this is the bigger EWP115 model. If you want to see how hard it was driven, search YouTube for 'Dolomite Sprint No 20'.
Geoff

Attachments:
photo 4.JPG
photo 4.JPG [ 120.19 KiB | Viewed 386 times ]

Author:  new to this [ Mon Aug 03, 2020 11:00 pm ]
Post subject:  Re: Electric water pump

Hi can any one tell me the water flow direction for the Sprint

thanks Dave

Author:  sprint95m [ Tue Aug 04, 2020 11:35 am ]
Post subject:  Yes.....

Quote:
Hi can any one tell me the water flow direction for the Sprint

thanks Dave
From the bottom of the radiator to the water pump.



Ian.

Author:  new to this [ Tue Aug 04, 2020 4:28 pm ]
Post subject:  Re: Yes.....

Quote:
Quote:
Hi can any one tell me the water flow direction for the Sprint

thanks Dave
From the bottom of the radiator to the water pump.



Ian.
Ian

I need a bit more information than that :D :D am i right in thinking , comes out of water pump cover to heater,round heater and back through thermostat back in radiator to complete the cycle

Im going to try a new set up Ford Essex belt driven pump , i know its been done on the Stag

Author:  Carledo [ Tue Aug 04, 2020 8:21 pm ]
Post subject:  Re: Yes.....

Quote:
Quote:
Quote:
Hi can any one tell me the water flow direction for the Sprint

thanks Dave
From the bottom of the radiator to the water pump.



Ian.
Ian

I need a bit more information than that :D :D am i right in thinking , comes out of water pump cover to heater,round heater and back through thermostat back in radiator to complete the cycle

Im going to try a new set up Ford Essex belt driven pump , i know its been done on the Stag
No it goes the other way, from stat housing, through manifold then to heater and back to water pump housing. If you fit an electric pump, the heater return needs to be tee'd into the bottom hose between the pump and the rad or the heater won't work. You can see this return pipe in the pic of Geoff's race car.

Steve

Author:  sprint95m [ Tue Aug 04, 2020 9:51 pm ]
Post subject:  Hmm.....

Quote:
Im going to try a new set up Ford Essex belt driven pump , i know its been done on the Stag[/color]
I'll be interested to see how you get on with this Dave.

The person who developed the Stag conversion posts on the Sideways forum,
from pictures he has posted there I concluded that there isn't enough room on a Sprint
to get the pump sufficiently low to work efficiently?


On the heater supply question, I stick by my previous answer of having the feed from the cylinder head.
This gives more heat and an easier plumbing solution for an EFI set up.



Ian.

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