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  #1  
Old 05-16-2010, 11:01 PM
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Engine: 2.4
2.4 water pump removal

I have a 98 sunfire with the 2.4 engine. The water pump is leaking from it's weep hole. I'm going to try and replace it. My question is after i get the timing chain cover off do i just remove the tensioner to get enough chain slack to remove the waterpump. Do the guides and chain have to come out also? I was going to put the crank timing mark at 12 o'clock, would that put the holes on the camshaft gears at six o'clock so i can put in the 8MM bolts to lock it in time than remove the tensioner? The engine has a little over 100k on it and has had regular oil changes and never abused. I was thinking that I would replace the tensioner but not the chain. I'm a decent backyard mechanic will this job be over my head. The local repair shops charge around $500 to do this job. Any help would be appreciated.
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  #2  
Old 05-16-2010, 11:17 PM
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the cam gears have line up holes in them that coincide with holes in the chain housing, line them up and put some bolts in them to line them up. then you can start screwing with everything. the timing mark on the crank (should be close to straight up at this point

you may be able to just loosen the tensioner to get enough slack for the water pump to come. im not totally sure on this though as every time ive messed with the timing chain ive always just completely removed it.

you'll be able to handle it... id pick up a haynes manual just to be a nice go-to-guide though. take your time and keep things organized and you will be ok.
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  #3  
Old 05-16-2010, 11:29 PM
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I'd get a manual and do it step by step.trying to take short cuts to do the job could make the water pump replacment alot harder. I did one on a 2.4 cavarlair once and it was a. I'm glad I own a 2.3
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Old 05-17-2010, 02:51 PM
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water pump removal

thanks for the advice. I'm going to have a go at it. I just don't want to put $500 plus in a waterpump for a 12 yr old car. I'll let ya know how it goes. If anyone else who has done this job wants to give some advice that would help it will be appreciated. You mentioned that maybe I could just take the tension off the chain to get the WP out, how would you do that , by depressing the plunger and hold it there? Thanks
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  #5  
Old 05-17-2010, 06:25 PM
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well we need to know exactly what style tensioner you have. there are two..

one style you stick a flat blade screw driver into a hole and 'ratchet' it down. the other style requires you make a small holding strap out of like a piece of clothes hanger. its tiny, maybe less than a 1/2 inch long, you bend it to hold it together. its hard to explain, the haynes manual should explain both ways in greater detail with pictures as well.
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Old 01-13-2011, 12:40 PM
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Model: alero
Engine: 2.4L
Question Water Pump Replacement

I have the same problem- fluid leaking from the weep hole of the water pump in my 2.4L engine. Thinking about trying to replace the water pump myself. How did it go for you? Any recommendations or lessons learned? Thanks!
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  #7  
Old 01-13-2011, 05:48 PM
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Engine: W41 Quad4 swap
and dont get cheap at very least replace the chain, upper guide, and tensioner/or shoe



:edit: respond to old thread fail
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Old 01-14-2011, 01:19 PM
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Water Pump Replacement

Thanks for the response but your message was cut off. Missed everything before "... and don't get cheap". Could you resend?
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Old 01-14-2011, 05:47 PM
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that was it lol, i was adding to what was already said.
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