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Water pump explosion 900 1993

Ok well my day today went:
Wake up and drive to work...

Drive home from work...

Drive to HomeDepot which is like 3 miles from my house...

Walk out from HomeDepot and my water pump like blew up...

I have a 1993 944 N/A with 193K Miles on the car, and 110K Miles on the 1995 Engine that was JUST Installed 2400 miles ago. What is up with that, did someone F'UP.. I am more than a little annoyed at this. What appears to have happened is the seal on the top part of the water pump blew out. The seal almost looks like the kind that is on the larger round end of a watering hose. Does this mean a faulty gasket? Or something more serious?

I bought the car because the guy said that he was sort of rebuilding a volvo engine with less miles on it, and putting it in the car i bought. I know for a fact that the engine that is in there had an almost new water pump installed.

Any help would be great.. Because if it is more serious i just might have my uncle whos a lawyer get my money back... I bought the car from a Volvo shop with the verbal reassurance that the car will last FOREVER... which i didnt care about.. i needed something to get me around college for 3 more years. Not something that was going to blow up in a month and a half.

Any help would be great... Because i really DONT want to get rid of my brick. I have grown rather fond of it.

Tonka








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I'd blame the installer of the water pump .... 900 1993

Not knowing anything else about the situation other than what you described, I'd say that the person who installed the water pump goofed (or your more colorful expression :-) ! Although I have to admit that it wasn't necessarily incompetence -- it's just hard to do properly, and he could have innocently just goofed the job.

That seal for that part of the pump that goes up into the head is widely recognized as a bit tricky -- not only forcing the pump upward to push it in, but also ensure that the seal slides in without curling over and failing down the road. A properly placed seal will last for years (decades, even) -- a poorly placed seal will typically fail shortly, just as you experienced.

Frankly, I don't use a sealant/adhesive (although others do) -- I prefer to trust the seal itself, but I smear silicone (the slimy, slippery form of it) thinly on the seal so that it slides in smoothly without distortion.








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Water pump explosion 900 1993

I knew there was a reason that i bought the car where i did.. I just got a call from the owner of the shop, whom i bought the car from, he said he doesnt know why but the upper O ring gromet or something just gave way. While looking over sometings noticed a pink tinge in the coolent, so he flushed everything and bought me a new radiator and is installing that right now, because i guess the transmission fluid is cooled by the radiator; just another part of it and it broke.. Everything FREE OF CHARGE!! His ending words to me are.. trust me now this car is going to last you forever!! We will see. I think this is a happy ending to a bad few days.

Thanks again for the kind advise!
tonka








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Water pump explosion 900 1993

"so he flushed everything and bought me a new radiator and is installing that right now, because i guess the transmission fluid is cooled by the radiator;"

I'm sorry to bring you possible bad news when everyting seemed so right... But in my opinion there is a danger that the transmission has been contaminated with coolant.

If the tranny cooler (in the right radiator tank) was leaking tranny fluid into the coolant, the fluid flow will reverse with the engine off. This is because the coolant system's 12-15 psi pressure takes time to drop as it cools, but the tranny fluid pressure quickly drops to zero with the engine off. The pressure difference would push coolant into the tranny cooler until the pressures equalized. How much contamination is anybody's guess

If it were my car, I would want the tranny fluid flushed completely — not just a quick 2+ quarts drained from the pan — hoping the tranny has not been damaged already.

You could probably do the flush yourself, using a fairly simple procedure that is well-known here.
But who is responsible?
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.








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Water pump explosion 900 1993

I am not sure why i didnt really think of that.."But in my opinion there is a danger that the transmission has been contaminated with coolant."

While its more than likely that it did, Randy.. the guy who owns that shop and did the work today said that there was not much transmission fluid left.. Which is another problem in itself. So i am thinking.. well hoping that the tranny fluid is all that was moving around.

Any ideas of what i should do? I really like the car.. ive never had a volvo never really thought i would ever want or have a volvo. But now that i do, i reallly like it. I think i am a brickaholic...

Problems i have are i can certainly do the tranny flush myself.. BUT its cold in the northeast and i do not have a garage. P.S. i am a poor college student so i cant really afford to go and have a flush done.








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Water pump explosion - and tranny fludh? 900 1993

The tranny flush procedure is pretty cheap and takes only a bit of time. Helps to have a helper, too. Look in the FAQs for more.

This information is what I know works for my 1988 244, you should check FAQs and also check other answers here.

Need to have:

(1) 12 quarts of ATF of the correct type. Look in your Owner's Manual.

(2) Containers for 12 quarts of used ATF. Should need 10, but more is safer. Six or seven empty 2-liter cola bottles WITH CAPS will work.

(3) Clear tubing of about 3/8 inch inside diameter, outside that will stick into the 2-liter bottles. A clamp for the tubing.

(4) Wrenches to remove one of the ATF lines into the radiator.

(5) A funnel to pour ATF into the tranny dipstick tube.


The process is to let the tranny pump itself. Takes, I am told, 30 minutes or so.


Remove the upper of the two ATF lines into the readiator. Use TWO wrenches, one on the fitting into the radiator, one on the fitting on the line. Squeeze the wrenches together to get started. You want to avoid applying torque to the rad fitting, it's a weak spot.

Stick one end of the tubing onto the radiator fitting, clamp it. Stick the other end into the first 2-liter bottle.

Start the engine and watch the fluid in the 2-liter bottle. It is QUICK, which is why a helper at the key is a good thing. The 2-liter bottle holds 67 ounces, 2 quarts is 64 ounces, so stopping the engine early is better than too late.

Add 2 quarts of new ATF. Cap the 2-liter bottle, move the hose to the next one.

Repeat until the ATF coming out looks a nice cherry red new. That time, add only one quart, it is better to not have the tranny overfull. Top it up after the car has been driven at least 30 minutes to get the ATF heated and moved through the tranny. Check on the dipstick at the hot fluid line.

Close things up. Take the old ATF to a parts house or whatever place will accept it for recycling.

Pretty easy, hunh?

Good Luck,

Bob

:>)








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Water pump explosion 900 1993

Don't panic yet-- it might be as simple as a $3 seal kit from the dealer. Perhaps the shop would be willing to install it for you if you let them know what has happened-- be calm and pleasant about it and they might just fix you up with no static...

Of concern is whether the car overheated without you noticing (does the temp gauge seem to work right normally?). Giving the cooling system a general inspection wouldn't hurt.

My money is on the bad seal-- they are kinda easy to mess up, and the procedure for installing the pump is a little different than many others, with the process requiring upward levering to seat the seal into the head.

In any case this isn't likely to be a deal-breaker-- post back and let us know what fixes things!

Good luck!








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Water pump explosion 900 1993

You have received sound advice from Herb Goltz; Over the years I have tried to deal with people in a firm factual way when facing a confrontation. By threatening the guy up front with a lawyer, you might succeed in having him dig in his heels and not do anything for you; play the lawyer card if he is unreasonable.

Have him check all the cooling system components, including the thermostat and as suggested, the operation of the temperature gage.
'97 960 115k miles








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Water pump explosion 900 1993

Thanks for the great advice.. I would not use my lawyer unless things got really bad. I dont think this guy is that kind of a person, However i am no longer sure how quality his work is. This is not the first thing i have had to go back for and have him fix.. So i just need to know if this is the iceing on the cake or not?

When i bought the car he "forgot" to tell me that it is a salvage title. So i just dont know what to think.







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