M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => Engine + Driveline => Topic started by: gtijon86 on February 11, 2009, 04:29:43 PM
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Okay so i was driving down the road the other day when i heard a loud squeal from my engine, then it suddenly stopped. Turns out my water pump had seized and the belt broke. I let it cool off and limped home without overheating. When i got home I began to pull the cooling system apart for an overhaul while i had it drained. Now for the problem; after removing the 3 10mm bolts and one 6mm hex bolt from the water pump i started to thread the bolts through the 2 flanges for removal. Right when it felt like the pump was going to give both flanges broke. I have since tried using a prybar on each side of the pump as well as removed the radiator and condenser from the front of the bay to try pulling through the grill. I even attached a come-along to the tree in front of my car and tried pulling it out with that. With the car in gear and the e-brake on the car actually slid forward with no movement whatsoever from the pump. Am i totaly screwed or has this happened to anyone else and you figured out how to get it out? Thanks and all advice is greatly appreciated.
Jon
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Sounds like you should try to cut the shaft and just try to get the pump out in pieces.
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What a nightmare.
If the car is still able to be started and ran for a breif moment, Strap that pump to the tree and fire up the engine and jerk that bitch in reverse. Either the come along is going to break or the water pump is going to exit the block.
Can't say thats sound advice, but you obviously have a difficult situation.
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Just wack the crap out of it with a hard hammer. Use the pry bar, wedge it behind the pulley flange and then hit it. Or use a very large chisel and try doing the same. Just be very careful not to damage the block. Good luck
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Whack the crap out of it with a heavy rubber mallet and pry bar. Some heat from a torch wouldn't hurt either. Be safe.
Just wack the crap out of it with a hard hammer. Use the pry bar, wedge it behind the pulley flange and then hit it. Or use a very large chisel and try doing the same. Just be very careful not to damage the block. Good luck
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I like the tree idea. Just have someone video tape it....
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Try packing it in dry ice and then hitting it with a pry bar. Try to apply force to two sides at the same time.
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why is the WP so hard to remove - and is there any concern w/ the above methods as far as cracking the front timing cover or possible causing any further damage to the front of the block?
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I think that if you lose the tabs they provide for pressing it out, it would be pretty hard to remove.
why is the WP so hard to remove - and is there any concern w/ the above methods as far as cracking the front timing cover or possible causing any further damage to the front of the block?
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why is the WP so hard to remove - and is there any concern w/ the above methods as far as cracking the front timing cover or possible causing any further damage to the front of the block?
It's held in there by a rubber o-ring gasket. It could also be held in by corrosion, if the cooling system has been severely neglected. In the op's case, I suspect the latter.
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I had a similar stuck water pump with broken flanges. I was not successful with the mallot/hammer methods. I used a large pipe wrench on the water pump housing and was able to slowly break it free by rotating it back and forth slightly (about the axis of the pump shaft). Make sure you cleanup the engine block surface to remove any corrosion/build up and hone any highspots/marks made from the earlier removal methods.
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Thank you everyone for your input. So what had apparently happened was the bearing in the front of the housing failed which allowed for play in the shaft. When the bearing got bad enough the impeller contacted the block and seized the pump. After laying into the pump with a 25 pound hammer the housing finally gave and i was able to remove the pump in pieces. Unfortunately when i was reinstalling the hose from the radiator to the water pipe the pipe cracked so now i am just going to redo the ENTIRE cooling system. Oh and while i was doin all of this i pulled my AC since the compressor was bad. 43lbs gone.
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if doing the whole system includes the radiator, pelican parts
for me anyway, i just replaced my radiator and they were the cheepet and included the resavoir. the bleed screws , other companies did not include the resavoir
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if doing the whole system includes the radiator, pelican parts
for me anyway, i just replaced my radiator and they were the cheepet and included the resavoir. the bleed screws , other companies did not include the resavoir
Thanks. I have found pelican to be a great parts source and highly informative as well. I also use vertex automotive, a porsche and bmw tuner located in miami, since i can pick up locally. Now that i know how bad the wear has gotten on my car it has become a full rebuild and i will be making a thread to continue this. Thank you everyone for your input. :D
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Okay so i was driving down the road the other day when i heard a loud squeal from my engine, then it suddenly stopped. Turns out my water pump had seized and the belt broke. I let it cool off and limped home without overheating. When i got home I began to pull the cooling system apart for an overhaul while i had it drained. Now for the problem; after removing the 3 10mm bolts and one 6mm hex bolt from the water pump i started to thread the bolts through the 2 flanges for removal. Right when it felt like the pump was going to give both flanges broke. I have since tried using a prybar on each side of the pump as well as removed the radiator and condenser from the front of the bay to try pulling through the grill. I even attached a come-along to the tree in front of my car and tried pulling it out with that. With the car in gear and the e-brake on the car actually slid forward with no movement whatsoever from the pump. Am i totaly screwed or has this happened to anyone else and you figured out how to get it out? Thanks and all advice is greatly appreciated.
Jon
I am having the very issue of the water pump refusing to come out. what worked best for you?
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The only thing that actually seemed to make any progress was to make solid downward blows on the flange that the pulley bolts up to. Be careful not to hit the crank pulley or timing cover. After a few solid blows the housing broke apart. Just make sure you have all of the pieces and flush everything out well.