While looking into the oil fill of my 94 pickup with a 2400 I noticed a rather large piece of plastic laying inside the motor that had come from somewhere else inside the motor I would guess. I was able to retrive it through the fill hole. I then removed the cover to inspect farther. Timing chain seems to be tight and no other plastic is present. A little investigating on the net leads me to believe that it is part of some sort of timing chain guide. If that is the case shoud I tear down now to avoide a real problem? 137K on the motor but runs awesome. Any and all advise will be greatly appreciated. I am not much of a mechanic.....Thanks

The chain is known to stretch a bit and rub against the timing cover, that would be my guess. Get that chain replaced soon if that's the case.

Brent

Yep, chain guides do wear. I would have it checked out as soon as possible, as the loss of a chain guide means that the chain is going to move around too much and could jump a tooth. You should be able to get a timing chain kit (or at least the needed parts: upper & lower sprockets, chain, tensioner(s), front main seal, and chain guides) to do the replacement yourself. You could tear it apart (as per the manual) and see what parts need replaced first.

I did the chain on my old 280z in a couple of days on a weekend.. the thing had nearly eaten through the guides and the sprockets were so worn that the teeth were razor sharp (they should be almost square!).

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"I'm just a bill... on Capitol Hill.."

I know this is alittle off topic, but what is the replacement interval for the timing chain on the Z24.

"Try not. Do or do not. There is no try"...Yoda