It is - but it didn't spin up. The important metal bits inside my well have not smashed into each other, at least not with any force.
I'd (personally) consider it a wise investment to test it with replacing the timing chain. Worst case, you're out $120. Best case, you're not out the cost of a new engine/car.
Yeah, maybe I can get lucky
I suspect you'd be more likely to be lucky when the timing snapped on ignition. If the engine wasn't spun up and running, that's a whole lot less force. For $120? I'd take that chance. Especially with a Jag.
I've worked on a Jag that'd bent the valves, sent the head off to a machine shop, this was a straight 6 hemi and it came back without the dual overhead cams timed for installation. You had to have two guys, one turning each cam to get the alignment marks in the proper place while making sure the intake and exhaust valves didn't collide with each other, and then clamp the cams in place while you put it on the block and reinstall the chains. I don't remember how many chains there were, though.
I guess so. I'll see what I can do. I need a vehicle
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