LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

What is leaking coolant?

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Old 12-09-2004, 06:05 PM
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Exclamation What is leaking coolant?

My radiator has a small leak but I went underneath the car today with it running and there seems to be a leak coming from behind the biggest pulley (underdrive?) but water seems to be leaking from that area and coming from above. i checked the water pump from what i can see from the bottom and top and no signs of a water leak. I am stumped! ...is it possible for the engine to leak water?
Thanks in advance!
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Old 12-09-2004, 07:39 PM
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Re: What is leaking coolant?

If its coming from behind that pulley, the wp is going bad, and leaking through the weephole onto your opti and behind the pulley.
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Old 12-10-2004, 12:26 AM
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Re: What is leaking coolant?

the water pump looks dry from top and bottom...
when water pumps leak do they leak from behind???
how much does one run for?
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Old 12-10-2004, 12:33 AM
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Re: What is leaking coolant?

This is where mine leaked from.

http://img9.exs.cx/img9/4077/dsc000051vl.jpg
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Old 12-10-2004, 01:22 AM
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Re: What is leaking coolant?

Maybe the pump is leaking from where it mates to the engine block. I've seen it happen before.
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Old 12-10-2004, 01:36 AM
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Re: What is leaking coolant?

mine leaked from the gaskets AND the WP driveshaft going into the block. the ball bearings for the rod were all over the place, making the rod extremely loose, causing the rusty leak you see in the picture.
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Old 12-10-2004, 04:48 AM
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Re: What is leaking coolant?

I saw the picture and i think thats where my water pump leaks from but i wont find out till saturday...
If its just the rod or gaskets can it be repaired and if so for how much???

Does anyone have shoebox'es website so i can check and see if he has directions on the removal of the water pump???

Thanks for the input guys!
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Old 12-10-2004, 02:14 PM
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Re: What is leaking coolant?

Ttt
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Old 12-10-2004, 02:28 PM
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Re: What is leaking coolant?

check with OReilly's for a reman stock WP for $110, lifetime replacement.

remove the intake elbow, MAF, cai - move the fans down - drain the remaining coolant from the radiator - start removing the bolts from the left side of the WP - remove the AIR pump bracket and the AIR pump in order to access the final bolts holding the WP
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Old 12-10-2004, 02:58 PM
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Re: What is leaking coolant?

Sounds Easier Than I Thought...
Thanks A Lot...
By The Way...never Heard Of O'riley...is This A Good Distributor???
Is There A Website????
Thanks!
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Old 12-10-2004, 03:02 PM
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Re: What is leaking coolant?

its a local parts store. check whatever store is local to you.
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Old 12-10-2004, 04:41 PM
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Re: What is leaking coolant?

So Any Water Pump Is Fine....make Or Place Of Purchase Doesnt Matter Right As Long As I Get It With A Lifetime Warranty...i Havent Heard Of An Orileys Here In My Area...
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Old 12-10-2004, 05:30 PM
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Re: What is leaking coolant?

its not 'any' WP, its a stock replacement WP for an LT1 engine. you can buy a new one for $150+ or buy a reman one for less. The remanufactured WP's work just as well as the new ones.
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Old 12-11-2004, 03:26 AM
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Re: What is leaking coolant?

Thanks for the info...
Ill just go with a reman since i am pretty broke.....
thanks!
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Old 12-11-2004, 03:47 PM
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Exclamation Re: What is leaking coolant?

I removed the 4 bolts but the water pump wont come off???
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