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How to loosen tensioner for timing belt isuzu bighorn 3.1 diesel please

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Use a wrench and push it down out of the way to switch belts

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How to remove and reinstall an alternator for 1992 isuzu bighorn deisel


loosen alternator mount bolt (2 i recall) and remove tension adjusting nut. then the drive belt should be slack. take off belt, disconnect vacuum lines and connector, then undo mounting bolts.
remove alternator.
reinstall is the reverse process.

Jun 22, 2014 | 1992 Isuzu Pickup

2 Answers

Replacing a timing belt


1. Remove the timing chain cover. Its usually a black plastic cover on the side of the engine.
2. Loosen the timing belt tensioner. Its cylindrical shape thing made of metal and timing belt run over it.
3. After loosening it you can remove the old belt and place new belt.
4. Tighten the belt tensioner and put timing belt cover back.
Done.

Oct 22, 2012 | 1992 Isuzu Rodeo

2 Answers

Need workshop manual isuzu bighorn 1996


1996 model Isuzu bighorn plaisir 3.1 D engineoil

Jan 14, 2012 | Cars & Trucks

1 Answer

Alternator belt diagram for isuzu bighorn


All above is Bull Sxxxt. Isuzu bighorn Alternator belt only drives water pump (fan) and alternator. Size of belt is 17x1000 and its a tight fit onto pulleys so it makes you think its wrong belt, but trust me its not. As if you get 17x1025 or 17x1050 belt you wont get it tight correctly due to not enough adustment on alternator. To change/adjust the belt very simple. Loosen 3 bolts (14mm socket) on power steering pump (its 2 belts that diving power steering and air con), loosen tensioner on p/s pump. Remove those 2 belt - to get access to alternator belt adjustment bolts. There are 2 bolts you will need to loosen One at the bottom of alternator (14mm socket and 25mm extension bar to get it easier) another one is 12mm on tensioner rail. Than adjust tension by screwing 12mm long bolt that mounted across the tensioner rail until you get tension correct. Correct tension is about 68kg. But i do it just to get it nicely tight without too much of sag. REMEMBER DO NOT OVERTIGHTEN the belt as you will crush berings on water pump or alternator.

Jan 12, 2012 | Cars & Trucks

1 Answer

Timing marks trooper 1985 mod dlx turbo diesel


Refer to Figures 1,2,3,4 when performing 17-step timing procedure for 1981-1985 Diesel Engines.

Fig 1. Injection pump and camshaft alignment marks - Diesel engine.

archaeology_66.jpg


Fig 2. Removing the timing belt holder - Diesel engine.

archaeology_67.jpg

Fig 3. Injection pump alignment marks - Diesel engine.

archaeology_68.jpg

Fig 4. Tensioiner Pulley Bolt Sequence - Diesel engine.

archaeology_69.jpg

Procedure - Timing Belt replacement.

1. Disconnect the negative battery cable. Drain the cooling system.

CAUTION
When draining the coolant, keep in mind that cats and dogs are attracted by ethylene glycol antifreeze, and are quite likely to drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantity. Always drain the coolant into a sealable container. Coolant should be reused unless it is contaminated or several years old.

2. Remove the timing belt cover. Remove the injection pump sprocket flange.

3. Using a prybar, remove the tension spring from the timing belt tensioner.

When removing the tension spring, avoid using excessive force for the spring may become distorted.

4. Remove the tensioner pulley bolt and the pulley.

5. Remove the timing belt and discard it.

To install:

6. Rotate the crankshaft to bring the No. 1 piston to TDC of the compression stroke.

7. Align the timing marks on the injection pump sprocket with the camshaft sprocket; the marks must be facing each other.

8. Using a new timing belt, install it in the following sequence: crankshaft sprocket, camshaft sprocket and the injection pump sprocket; the slack must be between the injection pump and camshaft sprockets.

9. Install the tension center and the tension pulley so the end of the tension center is fitted against both pins on the timing pulley housing.

10. Hand tighten the nut so the tension pulley can be rotated freely.

11. Install the tension spring and semi-tighten the pulley nut to 22-36 ft. lbs. (30-48 Nm).

12. Rotate the crankshaft 2 full turns clockwise to seat the belt and further turn the crankshaft 90° beyond TDC to settle the injection pump.

13. Loosen the tension pulley nut to take up the timing belt slack. Tighten the tension pulley nut to 79-94 ft. lbs. (108-128 Nm).

14. Install the injection pump sprocket flange; the hole in the outer circumference of the flange should be aligned with the triangular timing mark on the injection pump sprocket.

15. Rotate the crankshaft 2 full turns clockwise to bring the No. 1 piston to TDC of the compression stroke. Make sure the triangular timing mark on the timing sprocket is aligned with the hole in the flange, then, measure the timing belt tension; it should be 33-55 lbs.

16. Install the timing belt cover.

17. Connect the negative battery cable.

Jul 04, 2011 | 1995 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 loosen the belt to get it off of a 94 isuzu amigo


You have a couple of belts up front there, each has it's own tensioner, the power steering belt is adj by the power steering unit itself, you see that square hole in there, ? it is for a 1/2 drive breaker bar, the alternator is adj by the alternator, and the ac has an idler puller that rides up and down to adj the tension, you have to loosen the bolt in the middle of the idler. If you are talking about the timing belt, you have to get a pin, small, pull the tensioner back as far as you can and get the pin in the hole, the belt will come off. Do not pull the pin back out till the belt is set, then let her go. If your truck is starting to sound like a diesel and it isn't a diesel, it is the timing belt tensioner, they rattle like crazy. Hope this helps.

Oct 03, 2010 | Isuzu Amigo Cars & Trucks

2 Answers

How to adjust fan belt on izusu bighorn 3.1d


Find the tensioner. Tensioner is a pully to adjust the tension of the belt. Mostly the Alternator is the tensioner pully. Check it. ok

Mar 10, 2010 | 1996 Isuzu Trooper

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