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How to remove crank pulley on 1994 Isuzu trooper

Iam changing water pump and timing belt

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Posted on Jan 02, 2017

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dttech
  • 4803 Answers

SOURCE: Trying to change the water

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.

Posted on Feb 20, 2011

Testimonial: "Thanks for the help-I will definately give that a try... :)"

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1 Answer

How to change a timeing belt on a 1994 isuzu trooper


  • Pop the hood and locate the belt tensioner on the front of the engine, which has a square hole in the middle of it. Stick the end of the 1/2-inch breaker bar into the hole and turn the bar counterclockwise to release tension on the belt. Then pull the old belt off of the pulleys and remove it from the engine.

  • 2

    Open the owner's manual and locate the belt routing diagram for the engine. If you can't find the owner's manual, there is a sticker under the hood that shows the routing diagram as well. Start installing the belt around the pulleys according to the diagram until you can't pull it any further.

  • 3

    Pull the breaker bar again, turning it counterclockwise, and put the belt around the tensioner. Then release the tensioner and visually inspect the belt to make sure it's not twisted or bent any odd directions, and make sure that the belt is sitting squarely in each pulley. If not, pull up the tensioner with the breaker bar again and adjust as necessary.

Jan 12, 2012 | 1994 Isuzu Trooper

1 Answer

How to timing the belt of isuzu 4jx1



stevenhurc_29.jpgbefore you remove belt time mark on cam gear as well as crankshaft pulley, the timming mark on the pump drive gear (lower gear in this picture) will not line up but thats ok line up the mark on pulley to rear cover at about 12 O clock when the belt is off.

Sep 08, 2011 | 1999 Isuzu Trooper

1 Answer

I have a Isuzu rodeo 1994 3.1 in I can't find the


The timing marks are stamped into the head and in the cam pulley, also on the crank and the case, find them and paint them white so you can see them, the new belts have the marks on the belt, they will line up, If they don't , you got it wrong, You can do this without spinning the cams or crank and losing the marks, as long as the belt marks line up, you will be all set. Put the pin in the tensioner before removing the belt. Did you change the water pump? And I think the engine is 3.2L. Get it in there and pull the pin, It should be right on. Turn over the engine by hand a couple times to make sure it comes around on the marks. If it is wrong, it will go about 11 or 12 miles, and you will need a new engine. Hope this helps.

Jun 04, 2011 | 1994 Isuzu Rodeo

1 Answer

Changed water pump in 1994 Isuzu Trooper and also changed timing belt. But now it will not start. Just turns over and over. How do you set timing or is that the problem?


Yes the problem is the timing. Align the crankshaft at top dead center. Then align the camshaft so that the valves corresponding to cylinder number is in fully closed in its travel.

May 24, 2011 | Isuzu Trooper Cars & Trucks

2 Answers

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.

Feb 20, 2011 | 1991 Isuzu Trooper

1 Answer

Which pulley is the idler pulley on a 2001 isuzu trooper 3.5L,DOHC motor?


stevenhurc_2.jpg 1=crank
2=alternator
3=idler tensioner
4=IDLER
5=fan idler
6=air cond compressor
7=accessory drive belt(serpentine belt)
8=power steering pump

just in case this is the timming belt and pulleys

stevenhurc_3.jpg

Jan 31, 2011 | 2001 Isuzu Trooper

1 Answer

Hi ive got a 1996 isuzu bighorn ive attempted to change the timing belt but the injector pump pulley moved when i took the belt off. i put it back where i thort it was and tried a tooth either way but no...


Timing belt installation

1. Ensure locking bolts located correctly [4] & [5] in the picture below:

tdisline_32.jpg
CS = Crankshaft
CA = Camshaft
IP = Injection Pump

2. Ensure timing marks aligned [10].
3. Fit timing belt in clockwise direction, starting at crankshaft sprocket.

NOTE: "ISUZU" lettering on belt should be readable from front of engine.

4. Slacken tensioner pulley bolt [9]. Push tensioner pulley against belt.
5. Ensure belt is taut between injection pump sprocket and tensioner pulley as well as crankshaft sprocket and camshaft sprocket.
6. Position tensioner lever [8] against tensioner pulley housing.
7. Remove locking bolts from sprockets [4] & [5].
8. Apply a load of 10 ... 12 kg to tensioner lever. Use spring balance [11].
9. Tighten tensioner pulley bolt to 80 Nm.
10. Turn crankshaft slowly 45 degrees anti-clockwise. Use spring balance to tension belt.
11. Repeat tensioning procedure at 45 degrees intervals for one anti-clockwise turn of the crankshaft.

NOTE: DO NOT turn crankshaft clockwise during tensioning procedure!

12. Fit tensioner lever to original position. Tighten nuts [12].
13. Install: Injection Pump flange [6], Camshaft sprocket flange [7], and water pump pulley.
14. Install components in reverse order of removal & refill coolant.

tdisline_33.jpg
PLEASE DO RATE MY RESPONSE. THANKS!

Nov 27, 2010 | 1996 Isuzu Trooper

1 Answer

How do i replace a water pump on a 1994 mazda protege


1.u need to jack the car up so u can take the passenger tire off. align the crank timing mark to top dead center with the front timing belt cover. 2. u need to loosen the crank bolt with am impact wrench, or secure the flywheel and lossen the crank bolt .3. u need a 10mm short 1/4 inch socket/or wrench inch to loosen the (4) water pump nuts. 4. i now recommend u loosen the alternator, u do not need to remove it. 5. if u have air-conditioning..i suggest u leave it on. remove the belt 6. powersteering can be loosened as well, 7. once u remove the crank pulley..u can take the 10 mm blots out of the timing belt/water pump covers.u will also need to support the engine(under the oli pan is ok) and remove the upper passenger side motor mount. 8. u will now see the timing belt. u need to remove it by loosening the tension pulley (14 mmm bolt) .u should make sure the crank is tdc. but u just need to make sure that when u re-install the new timing belt(whichu better do when u do a water pump)...,make sure the exhaust and intake cam shaft pulleys are aligned.(exhaust pulley is front side of car, intake is rear.)(e-for exhaust,i -for intake....they're aligned at center of each other (center of engine)now i must take a pee,brb in a minute. remove timing belt now 9. remove (5) 12 mm bolts from water pump. clean surface. 10. re-install in complete reverse order.i do recommend u use a black rtv gasket sealer on ur water pump gasket.(screw manufacturers statements on this use). tart with taking your two belts off, remove motor mount, remove power steering pump, crank pulley,next remove timing belt covers along with tensioners. Remove valve cover. timing belt tensioner, now you have access to the water pump. remember your timing marks before you remove. When installing timing belt hold camshaffts with vise grips to align. installation opposite of removal.



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

Jan 31, 2010 | 1994 Mazda Protege

1 Answer

Cam belt timing 1994 Isuzu trooper big horn


no timing, cam belt must be installed corectly inorder to have right timing.

Oct 03, 2009 | 1994 Isuzu Trooper

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