Question about 1986 Isuzu Trooper

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Trying to replace a water pump on 1986 trooper II how do you hold the flywheel to get the crank pulley off?

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Use an impact wrench, this eliminates the need to hold the flywheel steady.

Posted on Aug 01, 2010

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Trying to change the water pump on my Isuzu Trooper-1991, 4 cylinder...Removed belts and pulley, but having trouble removing LOWER (crank shaft pulley) pulley bolt, 15/16th I believe? How can I remove...


Sometimes you have to heat the head of the bolt with a torch the use an impact wrench to break it loose.

If you don't have access to the above, you can remove the starter motor and jam the flywheel with a screwdriver or something and use a long breaker bar on the crankshaft bolt. (Kind-of the hard way, but it can work)

If you are replacing the water pump, it is recommended that you also replace the timing belt and the belt tensioner pulley while you are in there. I also personally recommend replacing the camshaft, crankshaft, and oil pump shaft seals. This can keep you from having to go back in there because of an oil leak. If this is all done at the same time, there will be no need to go back in there for another 60,000 miles.

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Trying to loosen the crank shaft polly to change water pump


Hi,
You need to remove the bellhousing cover plate and put a screw driver into the flywheel ring gear to lock it from turning.

If you can get a friend to help you do it because the bolt holding the pulley on is very tight.

Hope this helps

Thanks
Jason

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When i change the timingbelt,How do i Time it?


Set your timing mark on outer cover to the flywheel timing mark on pulley(T mark), then take the covers off and look you will clearly see marks that line up on the cam pulley to block,crank gear to block, and water pump shaft to crank (separate belt replace both, and replace water pump in high mile cars. ) These marks will all line up when you rotate the motor to top dead center on the compression stroke..

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see this video http://www.youtube.com/watch?v=c_QfsWd379A

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