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Isuzu Trooper: Timing Belt Problem

16 messages,  Last post on Nov 20, 2009 at 5:12 PM

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What is this discussion about? Isuzu Trooper, Engine, SUV

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#1 of 16 1995 Isuzu Trooper Timing Belt Problem by quimozabi Jan 10, 2007 (2:36 pm)
I change the Water pump of a 1995 Isuzu trooper and I change the Timing Belt wrong. I know it for the strange sound that it makes in the engine.   Do the valves of this SUV get damage?   How can I change It?   Can I find the user manual of this SUV some where? Replies to this message: trooperman2010 (Jul 09, 2007 1:21 pm)
#2 of 16 2000 trooper timng belt by trooperguy2 Jul 07, 2007 (6:15 pm)
I have a 2000 trooper w/ 80000mi., guess I need to repl. belt. can it be done by the home mechanic? does this engine have an interference engine? 3.5 liter. Water pump have to come off when doing? trooper guy2
#3 of 16 Re: 1995 Isuzu Trooper Timing Belt Problem [quimozabi] by trooperman2010 Jul 09, 2007 (1:21 pm)
Replying to: quimozabi (Jan 10, 2007 2:36 pm) hello im currentlly restoreing a 92 trooper and have the timing belt in view its definetly a oneday job if you want it done right and i definetly recommend takeing the radiator out first it gives you tons of room and its not that difficult to do as to the valves.. it can damage them depending on how far off the timing is but i think its safe to assume your ok because it wouldnt run if its to far off. manuels are semi ok to find i bought and recommend a chiltons manuel at advanced auto parts... Good luck
#4 of 16 to trooperman 2010 [quimozabi] by trooperguy2 Jul 09, 2007 (3:43 pm)
Thanks quimozabi, when doing the timing belt, does replacing the water pump at the same time make sense? I was told this on my Isuzu P'UP '93 that I had. Had it done too when having the belt repl. But checking the owners manual, it says the timing belt should be done at 100K miles. Mine is at 80K, and thefactory had the engins repl. when the truck was 1 yr. old. approx. 12000 mi. So I guess I have a few years to go before I get to 100K, but notice the warrenty, which is out of date now, required to change at 60K. Big difference. I think I will do myself in a couple of years.Will take your advise, get a real manual, Chiltons. Good luck with the rebuild, trooperguy 2
#6 of 16 timing belt by shonie65 Sep 10, 2007 (4:04 am)
i have an m reg isuzu trooper duty 3.1 and the red light on my dash is on which says t belt! what do i have to do dont have a clue about cars and sick and tired of being conned at the garages!!!!!!! Replies to this message: greasemonkey27 (Oct 01, 2007 1:13 pm)
#7 of 16 Re: timing belt [shonie65] by greasemonkey27 Oct 01, 2007 (1:13 pm)
Replying to: shonie65 (Sep 10, 2007 4:04 am) If t-belt light is on, then you definitely need to change it. If you look in your service pack you will find that t-belt change also time sensitive. Sounds like yours is well overdue.
#8 of 16 back fire/no power by changus02 Oct 10, 2007 (6:28 pm)
I recently rebuilt the engine on my 1998 trooper and am 99.9% positive I have the timing belt in the right position. I have no power and backfire when i push the throttle until about 2000 RPM. any suggestions? Replies to this message: valentius (Nov 20, 2009 5:12 pm)
#9 of 16 1994 Trooper Timing Belt Replacement by wboomer61 Oct 27, 2007 (12:16 pm)
Have a 94 Trooper 3.2. Changing the timing belt. Cannot get the crankshaft pully bolt to break loose. Any advise/ Help! Also is it possible that the belt slipping has bent the valves? The truck would not start. Replies to this message: atfdmike (Oct 29, 2007 11:36 am) chaison (Nov 14, 2008 4:07 pm)
#10 of 16 Re: 1994 Trooper Timing Belt Replacement [wboomer61] by atfdmike Oct 29, 2007 (11:36 am)
Replying to: wboomer61 (Oct 27, 2007 12:16 pm) I have the same model, DOHC. The bolt is a bear to loosen. I use an impact but I had to remove the radiator to use it. I have since seen where if you CAREFULLY use a long breaker bar and wedge it against the frame or other hard point and then quickly bump the starter it will break the bolt loose. I suggest unplugging the connectors to the coil packs in order to assure the engine does not start. I have seen this done but not on an Isuzu, but I see no reason it would not work, as it is a right hand threaded bolt. Also, the harmonic balancer is a slip fit so it will usually come right off if you are careful to use a remover or carefully apply even pressure to it on opposite sides. Good luck   This engine is a non interference engine, according to the experts. There is a warning in the manuals, but I am pretty confident that you should not have any damage unless you really over revved it or drove it a long time with it mis timed, .....which usually cannot be done as the engine will run poorly if at all. One guys opinion.

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