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Posted: Sat Feb 02, 2008 5:36 pm
by stopping
Andrew re:
http://www.vwdiesel.net/phpBB/viewtopic.php?t=2412
I really can't see a down side to this idea of adding a new higher pressure line form the water pump. I think I will try it sometime.
Brilliant engineering Mr.Libby!
Posted: Mon Feb 04, 2008 2:24 pm
by libbybapa
I think I too will try it some time. Let me know what the results are if you get to it first. When I give it a go I plan on using a few temp senors in various places to gauge the water and oil temps pre and post re-routing.
Andrew
Posted: Mon Feb 11, 2008 12:06 am
by Reiney
I would be interested to know if anyone has checked the euro wiring diagram for the aux pump. Mine was disconnected when I got the motor but I do have an unused temp sensor near the head outlet. Of the three basic options: run pump when cold, run when hot, don't run at all, what's the consensus?
I have a thermostatically controlled oil/air cooler so I don't need the aux pump for cooling ...
Thanks!
Posted: Wed Feb 13, 2008 1:44 am
by jolotter
caveman wrote:I'm pretty sure all those pumps were used for an after run i.e. they would turn on after the vehicle was turned off in order to circulate coolant in the system so not to create any hot spots etc. they were installed in any vehicle where high load / high performance / hot under hood temps were involved. i would try to find a euro spec wiring diagram to see if it's not switched on that way
Correct. The pump is wired to run a short burst when the ignition is turned on, then is thermocontrolled to run above 107 deg C and lastly to run after ignition is turned off to prevent hot spots.
And Here's the wiring:
Johann
Posted: Wed Feb 13, 2008 2:31 am
by Reiney
Thanks a lot Johann!
That's exactly what I needed. Do you have the entire Transporter turbodiesel manual? I would like to try and find a copy.
Here are some pics from my recent '86 GL to 1.6TD conversion ...
http://pages.cthome.net/rasminko/overall.jpg
http://pages.cthome.net/rasminko/turbo1.jpg
http://pages.cthome.net/rasminko/pspump1.jpg
http://pages.cthome.net/rasminko/pspump3.jpg
http://pages.cthome.net/rasminko/intake.jpg
I've since added an intercooler but don't have pics of that yet.
Good luck w/ your conversion ...
Reiney
Posted: Sun Feb 17, 2008 10:49 pm
by stopping
Ok folks please excuse me if you've heard this one before but I have been churning this one over... even before this thread.
If I had one of those pumps I would try to use it in combination with my on board furnace as a block heater.
There are two options for this:
One is to make a manifold/ loop for the coolant and wrap it around the inner shell of the furnace and pump the water to and from the heater core line. (like the syncro but using the air furnace)
or the more elegant slightly less efficient (in terms of btu transfered) way would be to use the heater core as the exchanger for the engine. I think there might be some mods required in the air / heater box for this but I would use the pump in line with the heater core (front) so that the furnace is heating the coolant in the core as it goes though to heat you! Am I making sense? The idea is actually VW's (I think) since this seems to be how the syncro's aux. heaters work.
Posted: Sun Feb 17, 2008 11:23 pm
by Reiney
Yea,
I thought about doing exactly this using a 3-6 gallon RV hot water heater with the valves necessary to route the domestic hot water through a flat plate heat exchanger. Probably would need another of those small pumps for the domestic loop. Or, you could cut a hole in the hot water heater tank and put a copper coil in there.
My ultimate goal is propane-fired domestic hot water with a way to use this as an engine heater. Oh, yea, I need to heat a WVO tank as well ...
Still workin' this all out ...
Reiney
Posted: Wed Feb 20, 2008 10:40 pm
by jolotter
Reiney wrote:Thanks a lot Johann!
That's exactly what I needed. Do you have the entire Transporter turbodiesel manual? I would like to try and find a copy.
Reiney
I don't have the whole manual. I got these pages from a guy in Scotland I was sourcing parts from.
Does anyone have any thoughts on a local (North American) source for a similar coolant pump? Maybe a 12V fish tank circulator or from another vehicle?
Johann
Posted: Wed Feb 20, 2008 10:58 pm
by jolotter
I don't have the whole manual. I got these pages from a guy in Scotland I was sourcing parts from.
Reiney, is that a K3 Turbo on there? It doesn't seem to have any clearance issues with the LS motor mount. Correct?
I carefully rebuilt the K24 that came with my engine but have since come into 2 K3s although both are in need of some work. Arrgh.
Anyone want to buy a rebuilt K24?
Regarding the coolant pump, does anyone have any thoughts on a local (North American) source? Maybe a 12V fish tank circulator or one from another vehicle?
Johann
Posted: Wed Feb 20, 2008 11:16 pm
by Reiney
Summit Racing, (
http://summitracing.com) has electric water pumps but they're pricey .. $200-$300 and the ones in my catalog are all designed to bolt on to Chevys and Fords.
You might be able to use a 12V circulator pump designed for solar-powered heating systems. These can handle fluids up to 250 deg.F and move 3 - 6 gpm. I have access to these from one of my suppliers but they're not cheap either; usually around $175 - $275.
Might still be able to get the VW OEM pump; I can look for a part number on mine if you need it ...
R.
Posted: Fri Feb 22, 2008 3:38 am
by Fatmobile
My cousin works in a diesel shop, he gave me an eletric waterpump from something, maybe a cummins. Nice and small, fits in one hand.
Maybe you can get a used one cheap.
Posted: Thu Mar 27, 2008 7:54 am
by caveman
Go to a scrap yard and get a oem vw one from a VR6 or 1.8 T. That's i will do to get that oem "feel"
Re:
Posted: Mon Aug 01, 2011 3:49 pm
by avocado
As this link appears to no longer work, anyone have an idea what the modification mentioned here was?
Cheers,
Avo
