S2000 Under The Hood S2000 Technical and Mechanical discussions.

Snapped idler gear/cam chain sprocket bolt

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Old 01-23-2011, 03:21 PM
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Ok so it was nice out yesterday and had the time so I went ahead and took the old head off took a pic.. the cylinder walls look a little rougher then I remember when i had my k20 honed but then again I dont know how it looks after its been ran



Didnt have a new headgasket so couldnt put the new head on.. got it ordered and it should be in by wendsday so hopefully ill have it back together this coming weekend
Old 01-29-2011, 05:06 AM
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So I got working on the S yesterday and got everything back together.. took me a little while and it got dark so had a light and finished up and fired it up.. Its still making a tapping noice from the front of the valve covor, Im starting to think its the TCT thats doing it maybe













I got a video but dont know how to post it?
Old 03-22-2015, 10:57 AM
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Bring it back!

Driving down the road and hear something metal fall in the engine bay and then under the car. Shut it down and pull off right away. Popped the hood, saw that this cam sprocket bolt broke off. Removed valve cover (will post a pic), the sprocket is still on there, it dipped about 1mm but is held by the washer. It did begin to chew into the valve cover a tiny bit, there are some shavings. The motor ran fine when it fell out and I noticed no sounds or sputters, no cel, and no smoke.

Can I just replace this bolt or is the damage already much greater than I think?

Thanks
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