Changing timing belt

[Ramblin Fever]

NICE truck!

[2eyefishclaw]

it is the tensioner that usually starts knocking when the seal gives out and all of the tensioners blood leaks out

[neogenesis]

Originally Posted by trooperbc

normally, on these engines the following are done at the same time
*timing belt
*timing belt tensioner (it's the thing that goes the most)
*water pump (it's behind the timing belt, so now's the time to do it)
*possible timing belt pulley if indicated (probably not)
*accessory (external) belts or serpentine belt, whichever you have

What's the average price if I order from St. Charles Isuzu? It's been slow getting a reply on part prices so just wondering if anybody remembers what they paid for.

Thanks.

[jimwelsh]

I can visualize changing the timing belt, which according to the manual, it is just a matter of lining up all the marks correctly. From the pictures, it looks relatively easy. What I can not visualize is how theTENSIONER ADJUSTER works. Apparently, it is hydraulic? How does it maintain pressure on the TENSIONER PULLEY? The manual is vague on this part, basically, it just tells you how to 'lock' it using a piece of piano wire.
Also, just for information, there is a company called Scarff Motors in Auburn Washington, http://www.isuzuparts.com, that sells the TENSIONER ADJUSTER for the 1999 Isuzu 3.2 for $62.86 plus shipping.

[trooperbc]

Originally Posted by neogenesis

...St. Charles Isuzu? It's been slow getting a reply

Thanks.

don't use that form they have on their site. i just used that myself for the first time figuring it was the fastest way. after a couple of days i called and talked to merlin -- he said they hardly look at that anymore and the best is to call. (they are open saturday morning, btw)
//bc

P.S.and i'm not where i can access my invoices to tell you about prices (besides my parts came from the local dealer back when... you can just get the prices from merlin and call him back again to order if you need to. i can tell you they are not cheap. i don't know, did i mention JLEMOND, who was an ex isuzu mechanic's instructor if i have that exactly correct, and also sells oem isuzu parts; very knowledgeable and helpful -- check the FAQ and email him if you like

[trooperbc]

Originally Posted by jimwelsh

...What I can not visualize is how theTENSIONER ADJUSTER works. Apparently, it is hydraulic? How does it maintain pressure on the TENSIONER PULLEY? ....

it just pushes against the tension pulley which 'pushes' against the belt. it's 'default' position is pushing out, applying considerable force to the belt via the tension pulley. it's purpose is to keep that belt at the correct (tight) tension. when the tensioner is shot (no hydraulic pressure), the pulley 'paddle' that the tensioner rod is pushing against gets to make one horrendous noise banging against that useless rod.

the new one will come with a pin installed. don't take it out until you have everything installed and ready to go and then remember to pull that pin then. if you do it first, you won't get everything installed -- to push that pin in you pretty much need to put it in a vice and crank and CRANK it back in. iirc jlemond said it was like 200 lbs of pressure. . .

hth

//bc

[surferfletch]

And there's no need to worry about pushing it back in if you're in there for a t-belt change. It should get swapped every time the belt is changed.

[2000Frontera]

Gathering all the bits to start this project. One thing I need is the torque limits for all the nuts and bolts I'll have to re-install.

Has anyone got all these? Is there a simple PDF file available which give all engine bolt torque limits?

Thanks,
Wayne.

[redbug]

I wonder if you will be able to find torque limits for those bolts? Perhaps an official ISUZU service manual might go into that detail...? If you can't find them, go with "tight".

[lewball]

Are there any diagrams available for alignment for a X22SE engine?

History: My original engine blew due to the timing tensioner recall - Engine was replaced via Isuzu Dealer (AWESOME CUSTOMER SERVICE BTW), but I've now got ~100,000 miles on the replacement engine and get a 'Check Engine' warning lite - Had it checked @ AutoZone - error message stated something about the 'cam' alignment sensor.

I have the parts (timing belt, tensonor, & both Idlers, water pump, complete engine gasket kit) but need to know the proper alignment sequence for Re-Install of the timing belt. I've looked and can't find the alignment sequence.

Also, before I dig into the front of this, and looking to be prepared, I've read something about 'lock-tite' on one of the water-pump bolts - which one?

I have a Serpintine belt, Should I acquire any other parts prior to dismantling? - Radiator Fluid Flush/ fluid?, ect.?

Help Please.... I'm not ignorant when it comes to repairs as I've done all of the regular maintenance to this wonderful 98 Amigo, but it's been almost 15 years since I've done a timing belt and I can't afford to be without my truck for an extended period of time.

- lewball