Author Topic: water pump (Read 9622 times)

zukgod1 · « **Reply #15 on:** December 04, 2007, 08:50:40 am »

I replaced one just a bit ago with a cast impeller and it was kinda the same, as in it didn't protrude into the housing as far as the one I removed.
Seems to cool just fine but I was worried at first. It cant be as efficient as the one I removed. Bad part was the one I removed was fine but I was doing a timing belt and always replace the WP when doing the TB.

I have a spare water pump in my shed (new). Ya never know when you may need one. It's a cast one as well. I think it is a GMB.

rabbitman · « **Reply #16 on:** December 04, 2007, 11:52:02 am »

well my water pump is GMB but it's stamped, maybe they "upgraded" since I got mine a year and a half ago. :?
Well I never thought of that the hoses and block could have plenty of junk in 'em, and the nearest walmart is 100 miles away.

I used tap water.

Your supposed to wait 'till the engine cools to drain it ain't you? My bentley says it could warp the block.

I have a 180F t-stat which is 82.222222 Celsius, kinda cold I think.
Last winter I put in a 195F/90.5C t-stat in and the temp needle was at the bottom of the red. I couldn't stand lookin' at the gauge so I put the cold one back in. So now do I have a faulty gauge? Thanks for all the help, I'll do a flush as soon as I can.

zukgod1 · « **Reply #17 on:** December 04, 2007, 12:19:17 pm »

Well you can get a cheep o gauge for kicks to seeif your OE gauge is off.
I have one I keep just for this reason. hook it up and leave it under the hook, go for a drive stop and take a look.

rabbitman · « **Reply #18 on:** December 04, 2007, 06:46:01 pm »

Well I put a secondary water pump from a passat in the hose that goes from the head to the heater core. I figured this would help rule out my theory that the water is flowing to slow through the heater core. :roll: . I have it on a manual switch so I'll have a dead battery all the time.

. It's kind of a neat pump, the impeller is driven by a little motor via a magnet so the impeller can stall (like if I turn the heat off w/o turning the pump off) but the motor can still spin. :shock: I'll post my learnings after I test it out. nathan

Jolly1977 · « **Reply #19 on:** December 04, 2007, 08:20:00 pm »

Im sort of in the same boat. Noticed a puddle of antifreeze under my '80 Rabbit a couple of weeks ago. It was coming from the weep hole on the WP... If I knew then what I know now, I would have put the car in the paper for $500!

When I bought my first diesel car back in August, I thought the A/C was awesome. In fact the A/C was colder in my 27 year old car than it was in my 5 year old truck! Course, now im cursing the A/C to high heaven. I know VW makes some awesome cars, but really,,, you would have thought the engineers would have made something like a WP a little more accessible.

Anyway, I was finally able to take the pump off tonight, but I broke half of the bolts off in the process. Anybody know if you can heat the housing (its aluminum right?) side of the WP to try and remove those bolts while its still in the car? Im thinking they're really close to critical components like the IP and a seal for the intermeadiate shaft, so maybe not a god idea...

I think in the end I'm going to remove the IP to get to those bolts underneath. If I had it all over to do again, I think I would have gotten a quote from VW or some other mechanic to do it. Not worth the frustration...

Zulfiqar · « **Reply #20 on:** December 05, 2007, 02:04:02 am »

you can use those u shaped box/open wrenches - usually german made to access the bolts below the IP

Jolly1977 · « **Reply #21 on:** December 05, 2007, 07:31:49 am »

Anybody know a good place to get the pump and HOUSING?

rabbitman · « **Reply #22 on:** December 05, 2007, 12:04:07 pm »

http://www.vw-parts-direct.com

Get one with a cast impeller, you can tell by the pic unless you want to get the whole thing. good luck.

BleachedBora · « **Reply #23 on:** December 06, 2007, 12:34:22 am »

FWIW I can get the pump and housing, 037 121 010C, OEM GEBA or GRAF for $70 shipped....PM if interested

.
-BB

rabbitman · « **Reply #24 on:** December 08, 2007, 05:17:39 pm »

ok, the little secondary pump is installed in the coolant hose that goes to the heater core. It makes a big difference in how much heat comes out, turn it on, heat, turn it off, less heat. So the water pump isn't pumping hard enough. It's still not good enough so I'm putting in a headliner made of blue campers pad and cloth to make it look good, and hopefully keep some heat in.

jtanguay · « **Reply #25 on:** December 08, 2007, 08:14:52 pm »

Quote from: "rabbitman"

ok, the little secondary pump is installed in the coolant hose that goes to the heater core. It makes a big difference in how much heat comes out, turn it on, heat, turn it off, less heat. So the water pump isn't pumping hard enough. It's still not good enough so I'm putting in a headliner made of blue campers pad and cloth to make it look good, and hopefully keep some heat in.

how cold are we talking here? -15C should be absolutely fine with these cars. you either have a restriction in the system or need a proper thermostat. and if you didn't already know; only use distilled water in the cooling system.

i wonder why the water pump is acting the way it is... it almost sounds as if you didn't install the thermostat... although that would mean as little as no heat if cold enough.

-40C would be time to put cardboard in front of the rad... up in timmins while driving in -40C weather, our car died when i was a kid... turns out the distributor shaft snapped (some plastic piece shattered from getting too cold)

burn_your_money · « **Reply #26 on:** December 09, 2007, 09:41:42 am »

Also if you didn't know, don't drink that distilled water, it's gross.

I didn't need a piece of cardboard infront of my 92 TD at -40. I never had the heat cranked on that thing. I was running the hottest thermostat (92??)

jtanguay · « **Reply #27 on:** December 09, 2007, 11:15:26 am »

Quote from: "burn_your_money"

Also if you didn't know, don't drink that distilled water, it's gross.

I didn't need a piece of cardboard infront of my 92 TD at -40. I never had the heat cranked on that thing. I was running the hottest thermostat (92??)

no cheap distributors to crack... i remember having a super hot thermostat. heat cranked and the gauge still crept up! :shock:

distilled water is good for you. just imagine all those little stones in your kidneys from all the mineral intake from coffee & soda pop.

Slave2School · « **Reply #28 on:** December 09, 2007, 01:32:02 pm »

I wouldn't drink distilled water (especially not a primary source of hydration). Our body needs lots of minerals to properly function and some of us wouldn't get that unless we drank good ol ground water.

burn_your_money · « **Reply #29 on:** December 09, 2007, 02:46:32 pm »

I just mean it tastes vile. I had to spit it out. They put some bittering agent in it or something.

I was using my friends garage and it was 3am and I didn't want to go inside and risk waking anyone up so I figured I'd drink some. Worst idea EVER.