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How do I remove waterpump on a 98 grand am 2.4liter twin cam

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  • Cars & Trucks Master
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You really should buy a manual for this job because you have to remove the timing belt to remove the water pump. And if you don't get it back into the right position, it could ruin the engine. And if you do it, Since your in there, I recommend you get a timing kit and replace it also.

Posted on Nov 16, 2014

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Posted on Jan 02, 2017

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SOURCE: need info on replacing the waterpump on a 1999

I HAVE THE SAME CAR AND THAT WATER PUMP IS VERY HARD AND COMPLICATED TO INSTALL IT IS TIED IN WITH THE TIMING CHAIN AND YOU HAVE TO TAKE OFF THE PASSENGER SIDE TIRE, THE MOTOR MOUNT, THE TIMING COVER AND THE MANIFOLD,THE COOLANT RESERVOIR, AND YOU MAY NEED TO BUY A NEW TIMING CHAIN AND GEARS. YOUR BEST BET WOULD BE TO TAKE IT TO A PROFESSIONAL FOR A QUALITY GUARANTEE. I WORKED ON VEHICLES MY WHOLE LIFE IM A MECHANIC NOW AND I HAD TO TAKE IT TO SOMEONE WHO HAS SPECIFICALLY DONE THAT CAR AND WATER PUMP BEFORE.

Posted on Apr 29, 2009

SOURCE: Do I have to change my timing belt when I replace

If the belt hasn't been changed in a while, it's a good idea to do it while you're in there -- it'll save a lot of labor later -- check owner's manual for belt change interval.

Charlie

Posted on Sep 05, 2009

oneStan
  • 431 Answers

SOURCE: changing rod bearings

You'll find that once you've removed the connecting rod cap, that you can easily replace that one of course, so take a small screwdriver and use it to push up on the other bearing, on the side that doesn't have the notch, you should be able to also push up a hair on the rod to get a little slack, but the bearing will slide around the crank and you just reinsert the smooth part first, kind of just the opposite of what you just did to reinstall. center the bearing in the rod, pull the rod flush with the crank and reinstall the lower cap and torque to specificatioin.

Of course, lots of oil on the bearings & crank, if there is damage to the crank, you may want to turn it enough with the cap & rod not on it to polish it a bit with emory cloth.

Clearance shouldn't be a factor but you must torque to the exact specs to get the correct "crush" on those bearings and provide proper contact, while not being too tight to cause immediate breakdown by not letting the oil pass & lubricate the crank.

Hope that sheds some light on it. Crank bearings can be changed the same way.

good luck.

Posted on Feb 22, 2010

  • 326 Answers

SOURCE: need to check the timming on a 98 grand am 2.4L

by check timing do you mean base ignition timing or cam timing ,base ig. timing is handled by pcm not adjustable cam timing can be checked by removing all necessary components to gain access and remove timing belt covers rotate engine till #1 cylinder is @ tdc on compression stroke and check to see if all timing marks line up

Posted on Mar 17, 2010

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Hello emissionwiz it looks that you know about this vehicle. I just purchased a Daewoo Lanos 2001. They advised me that the timing belt broke and that the tension pulley broke. I went to a u pull yard and...


if the timming belt broke when the engine was running most of the time the valves get bent and leak (head off repair) you could check this once you have replaced the belt before you start remove rocker cover and check for gaps between cam lobe and valve bucket when lobe is not pushing bucket down if there is a gap valve is bent.
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on single cam engines you lock the tensioner with pin and loosen water pump and turn to obtain correct belt tension then release lock pin in tensioner and check that marks on tensioner align up if not turn water pump to get correct. some times this then causes the seal on the water pump to fail if its been there for some time because they corrode in block and its only a "O" ring so you might need a waterpump and "O" ring and coolant use grease on waterpump and "O" ring to make sealing and turning if needed eazier.

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