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Registered
Join Date: Jul 2005
Location: Canada
Posts: 254
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Dead Turbo Coolant Pump?
Hi guys,
I think I have a dead turbo coolant pump. Can someone confirm I have done the trouble shooting correctly? 1. Checked 7.5 amp fuse, OK. Replaced with a fresh one just in case. 2. Grounded coolant temperature sensor on top of turbo. Pump did not run. However, I could hear the relay click, then click again after about 30 seconds. 3. Ran 12 volts direct from batter to pump. Pump did not run. So, my guess is the pump is dead but the relay is OK?
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1987 951 ROW |
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10-11-2008, 02:00 PM
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Join Date: Dec 2005
Location: Seattle
Posts: 85
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Turbo Pump repair
Running 12 volts directly to it pretty much means it is bad. Some have been able to breathe new life into one by dissasembling it and freeing up the bearings.
Gook luck, Lou
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'87 944 na, sold to a friend '89 951, Weltmeister chips, 3mm WG shim, 968 CS sway bars, stock looking engine bay, just turned over 125K miles. I run Redline oil. |
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10-12-2008, 08:32 AM
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Location: Canada
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That's what I figured. I have a new one on the way, hopefully that will solve the problem.
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1987 951 ROW |
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10-13-2008, 10:44 AM
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Super Moderator
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everything you wanted to know about the turbo pump, and then some;
Turbo pump fixits
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-14-2008, 03:23 PM
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Awesome, that post on the pump should be a sticky or added to the 951 reference page!
Thanks, I too was dealing with this issue.
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87 944 - Daily Driver - Son took it and now brought it back |
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10-15-2008, 02:22 AM
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Super Moderator
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good idea, i'll add it to the 951 reference page.
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-15-2008, 08:31 AM
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Join Date: Jul 2005
Location: Canada
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Very nice!
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1987 951 ROW |
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10-17-2008, 10:06 AM
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Join Date: Sep 2003
Location: Houston
Posts: 105
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i bought a compatible mercedes one for under $65
nib |
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10-17-2008, 08:15 PM
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Super Moderator
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got a part number for the mercedes one?
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-18-2008, 07:15 AM
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Join Date: Sep 2003
Location: Houston
Posts: 105
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this is what I bought
PARTS Qty Description Brand Sku Price Total Vehicle:1980, MERCEDES BENZ, 300TD, 300TD / L5-3005cc 3 1 Electric Water Pump wagon; For Cars W/ Auto Climate Control;w/ 15mm Hose Connection W/ Cable;w/ 15mm Hose Connections & 13 Inch Cable Length;packing Size  iece; Years:; Per Car Qty:1; MTC/RONAK MBZ037173 $60.39 $60.39 http://www.hirschinds.com/ |
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10-18-2008, 06:03 PM
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Super Moderator
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wonderful, thanks! i'll link this info in the other thread.
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-18-2008, 06:20 PM
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Join Date: Jul 2005
Location: Canada
Posts: 254
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I installed the new pump last night, all went well, problem solved! Thanks for the help guys, I just missed out on the cheap Mercedes alternative, that would have been great. Oh well, 20 years from now when I need to replace it again I'll remember that.
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1987 951 ROW |
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10-23-2008, 06:17 AM
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1987 Porsche 944
