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Water Pump?

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Jman View Member Profile	Oct 25 2005, 09:48 PM Post #1
Full Member Group: Members Posts: 75 Joined: 20-February 05 Member No.: 6,606 Status: Location: Puyallup, WA Drives: 1994 Mitsubishi 3000GT	Water is GUSHING out from by my water pump while the car runs and after you shut it off it drains till its empty.. It cools just fine when there is water in it... Could the water pump be bad? Thanx

3000GT View Member Profile	Oct 26 2005, 02:27 AM Post #2
Full Member Group: Members Posts: 179 Joined: 17-September 05 Member No.: 15,544 Status: Location: USA Drives: 1994 Mitsubishi 3000GT	Wow, you're not driving it in this condition, are you? If your water pump went out, then you'll be able to hear its bearings make a grinding sound that will increasingly get louder as the bearings fail (especially at idle). Do you hear a grinding sound with the engine running? My best guess is that the water pump gasket or rear water pump O'ring failed and is letting the water escape. Did you have the pump changed recently? Some people have replaced the water pump and not put the rear O'ring gasket on properly (this will create a lot of water gushing as you had described). My recommendation is not to drive the car until the pump gets looked at or the source of the leak fixed. This is a good time to have the 60K service done on your car since you'll have to remove the timing belt to take off the pump anyway.

Jman View Member Profile	Oct 27 2005, 09:47 PM Post #3
Full Member Group: Members Posts: 75 Joined: 20-February 05 Member No.: 6,606 Status: Location: Puyallup, WA Drives: 1994 Mitsubishi 3000GT	I just changed the timing belt. Yeah I am driving it. I don't hear any grinding sounds.... When it starts to get over half way on the temp gauge I fill it with water.. I am gonna just order a new pump on payday... It will be $55 after tax for the pump and gasket...

TTAngel View Member Profile	Oct 28 2005, 08:01 AM Post #4
Wing Nut Group: Members Posts: 935 Joined: 16-June 05 Member No.: 10,897 Status: Location: Green Bay, WI Drives: 1995 Dodge Stealth RT/TT	If the bearings are failing in that pump your causing extra wear on your timing belt, which I believe is brand new... I am not sure what to say hear exactly...

toxicamerica View Member Profile	Nov 2 2005, 09:30 AM Post #5
Full Member Group: Members Posts: 96 Joined: 3-July 05 Member No.: 11,798 Status: Location: North West, Indiana, USA Drives: 1992 3000gt base	the water pump splits into two pieces which bolt into the block. When putting the housing and the actual pump together, use gasket sealer and also when you bolt the water pump onto the block, use gasket sealer. It sounds like a gasket let go. This time around make sure you clean all the surfaces and dry them first. Gasket sealer is your friend. Good luck!

3000GT View Member Profile	Nov 3 2005, 01:15 AM Post #6
Full Member Group: Members Posts: 179 Joined: 17-September 05 Member No.: 15,544 Status: Location: USA Drives: 1994 Mitsubishi 3000GT	When you replace the pump you will have two gaskets (a flat gasket and an O'ring type). When you remove the old pump you will see a water inlet tube that the pump slides over. The O'ring gasket slips around the tip of this water tube (look with a flashlight for any old O'ring gasket and remove/cut it from the tube). Slip the new O'ring gasket around the tube and seat it properly in the O'ring grove on the tip of the tube. When you place the new pump around the tube, push it strait in slowly with a little right and left twist so that you don't move the O'ring gasket from its seat. If you are using an aftermarket main gasket for the water pump, it's good to use a little gasket sealer. If you are using an OEM main gasket (great gasket), then there is no need for a sealer; put it strait on a clean surface. Do not us sealer (or get grease or oil) on the O'ring gasket, just coat it with water to help slip it in the pump. Use a green scrub pad to help remove some of the old gasket material (small stuff) from the engine block and wipe off with a clean rag. The bolts on the pump should be torqued down to 17 ft. lbs.

TTAngel View Member Profile	Nov 3 2005, 08:58 AM Post #7
Wing Nut Group: Members Posts: 935 Joined: 16-June 05 Member No.: 10,897 Status: Location: Green Bay, WI Drives: 1995 Dodge Stealth RT/TT	I typically use a razor blade to remove old gasket material, and use a BIT of RTV on the water pump gasket to get it to seal, because I DO NOT want to have to take the timing belt off a second time to mess with a gasket. Plus that water pump is a little whore to pull out of the engine. my 2 cents.

Mel16m View Member Profile	Nov 7 2005, 09:47 AM Post #8
Senior Group: Members Posts: 272 Joined: 23-August 05 Member No.: 14,501 Status: Location: Tarpon Springs, Fl Drives: 1994 3000GT VR-4	QUOTE(3000GT @ Nov 3 2005, 01:15 AM) When you replace the pump you will have two gaskets (a flat gasket and an O'ring type). When you remove the old pump you will see a water inlet tube that the pump slides over. The O'ring gasket slips around the tip of this water tube (look with a flashlight for any old O'ring gasket and remove/cut it from the tube). Slip the new O'ring gasket around the tube and seat it properly in the O'ring grove on the tip of the tube. When you place the new pump around the tube, push it strait in slowly with a little right and left twist so that you don't move the O'ring gasket from its seat. If you are using an aftermarket main gasket for the water pump, it's good to use a little gasket sealer. If you are using an OEM main gasket (great gasket), then there is no need for a sealer; put it strait on a clean surface. Do not us sealer (or get grease or oil) on the O'ring gasket, just coat it with water to help slip it in the pump. Use a green scrub pad to help remove some of the old gasket material (small stuff) from the engine block and wipe off with a clean rag. The bolts on the pump should be torqued down to 17 ft. lbs. [right][snapback]34316[/snapback][/right] :blush-anim-cl: do I smell plagarism? you changed your timing belt, did you do the water pump?? if it wasnt leaking before, and you didnt mess with it, that's wierd. Sometimes the o ring for the rear will be bad leak, take off the timing covers and see if you can find the source of the leak.... that would help, also, did you tighten all the clamps to the cooling system??

3000GT View Member Profile	Nov 7 2005, 08:06 PM Post #9
Full Member Group: Members Posts: 179 Joined: 17-September 05 Member No.: 15,544 Status: Location: USA Drives: 1994 Mitsubishi 3000GT	QUOTE(Mel16m @ Nov 7 2005, 09:47 AM) :blush-anim-cl: do I smell plagarism? you changed your timing belt, did you do the water pump?? if it wasnt leaking before, and you didnt mess with it, that's wierd. Sometimes the o ring for the rear will be bad leak, take off the timing covers and see if you can find the source of the leak.... that would help, also, did you tighten all the clamps to the cooling system?? [right][snapback]34663[/snapback][/right] Ya you smell plagiarism alright; right up my exhaust crack. Since you seem to enjoy sticking your nose up things, what you smell here is the sweet scent of experience for changing something as minor as a water pump on these cars. Now if you reply back telling me that changing a water pump on these cars is not a simple task, then I may just have more experience then you.

TTAngel View Member Profile	Nov 8 2005, 04:52 PM Post #10
Wing Nut Group: Members Posts: 935 Joined: 16-June 05 Member No.: 10,897 Status: Location: Green Bay, WI Drives: 1995 Dodge Stealth RT/TT	??? a water pump an easy job? if your doing it right it should not be an easy job. you have to re-do the tension on the timing belt. that alone takes no small amount of effort and time. Plus anyone who has ever pulled an old pump out of the engine knows they fight coming out like the irish fight over... anything. EDIT: unless your clamping the timing belt off on the cam gears, and then pulling it off the water pump, but that's kinda risky... I wouldn't do it. I'd take the time to do it right.

utiheadbanger View Member Profile	Nov 8 2005, 06:28 PM Post #11
Nissan Tech Group: Moderator Emeritus Posts: 1,984 Joined: 18-July 05 Member No.: 12,629 Status: Location: Bartlett, IL Drives: 2003 Mitsubishi Lancer ES	QUOTE Plus anyone who has ever pulled an old pump out of the engine knows they fight coming out like the irish fight over... anything. Ha...try a 1989 Chevrolet Cavalier Z28 2.8L V6...piece of ****. The timing cover had to come off, the belt had to come off, the pulley was in the way...this was all after the guy who's car it was didn't believe me on how to do it and called his buddy who's a "real mechanic". Just because I hadn't finished school yet doesn't mean that I didn't know how to do it, but I let him struggle until he asked for help!

3000GT View Member Profile	Nov 8 2005, 08:31 PM Post #12
Full Member Group: Members Posts: 179 Joined: 17-September 05 Member No.: 15,544 Status: Location: USA Drives: 1994 Mitsubishi 3000GT	At times like that I like to have AC/DC blastin', a 6-pack and a rubber mallet at the ready. You have to show da pump who da boss and how much you want that $50 core charge back.

utiheadbanger View Member Profile	Nov 9 2005, 05:05 PM Post #13
Nissan Tech Group: Moderator Emeritus Posts: 1,984 Joined: 18-July 05 Member No.: 12,629 Status: Location: Bartlett, IL Drives: 2003 Mitsubishi Lancer ES	Ha, like I said, it wasn't my car...I wouldn't be caught dead driving either a Cavalier or a GM product (a GTO being the exception because it's from Australia).

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