Re: [DML] Water Pump

[Martin Gutkowski <martin@xxxxxxxxxxxxxx>]

John

I am curious what you have to say to those who think the aftermarket 
pumps are not as good as OEM ones?

I'm not trying to start an argument, and I'm sure there'll be planty of 
happy customers with your pumps, but I know a lot of this comes down to 
driving style. Over here we can get away with long journeys at high 
speed (80+mph) and its on runs like this that the pumps work hardest. I 
am genuinely curious to hear your reaction, and any other experiences 
owners may have.

I know for a fact that one of the major vendors stateside started and 
stopped using those pumps several years ago because they proved to be 
less efficient. We have had a similar experience with aftermarket Volvo 
(4-bolt) pumps. I have chosen to write this e-mail because one of these 
cars came into our shop last week. It continually loses coolant slowly 
but has no leaks and the head gaskets are absolutely fine. I've seen 
this a couple of times. I've also seen a couple of cars with aftermarket 
pumps installed where the back plate works itself loose due to the 
replacement gasket shrinking. I have bought one of your pumps in the 
past and seen that they are identical.

FWIW, original pumps are still available brand new and they include the 
back plate already mounted. We've sold countless new Renault pumps and 
had absolutely no trouble with them. I've damaged a couple of pulleys 
getting them off old pumps but the only one that couldn't be repaired 
was stretched too far and took over 12 tonned to press it off! On that 
occasion, we sourced a new pulley from you. I'm not trying to bash your 
business, I just want to see what I can learn. I am certainly not trying 
to sell pumps - the exchange rate sees to that!

I am also slightly surprised by your comment:

"He also told me the trick to get the old pulley off without damaging it 
so that has been a big help."

There's no trick - just don't try pulling them off, instead the shaft 
must be pressed out. Have you been going this long without realising that?

I am sure your rebuilt pumps are built to a high standard and will work 
as good as new. In my experience, this will be better than the 
aftermarket units.

Martin
DMUK
http://www.delorean.co.uk/DMUK/newparts1.html#pump


John Hervey wrote:

>Group,
>I have found a water pump rebuilder that does exotic cars and has 
>agreed to rebuild the De Lorean pumps for me. We got all the parts
>and now have about 15 in the works and we are also cleaning up and re-
>plating the original pulleys. 
>Don't throw your old pumps away, I'll take and recycle them. 
>He also told me the trick to get the old pulley off without damaging 
>it so that has been a big help.
>As you know we also have the new 4 Bolt pulley water pump and pulley 
>in stock along with new pumps.




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