Cam chain tensioner problem

So after getting my engine mostly back together from a rebuild including D.I.D. camchain I adjusted the tensioner flush at TDC and proceeded to adjust the valves and set the timing, when I installed the tensioner cap I could feel it hit the adjuster bolt/stud and start to turn it, so I ran cap all the way in by hand until I felt the o-ring touch then took it off again, the stud had turn in 1 3/4 turns ( roughly 3mm) making the chain adjustment way too tight by that amount, this is a "D" type adjuster, the copper washer is there. I also noticed when installing the cam bearings that the chain is very tight ( yes, it is the right pitch for a 77 650D)
Anyway, I have seen this problem mentioned a couple times on the forums but no one ever responded and I cant seem to find anything relevant with the search. I dont want to run it that tight until it loosens up either.
Any suggestions? Machine a spacer for the cap? Kinda lost #$%@^

I had basically the same problem when I changed the camchain and chain guide on my 77D too. I got around it with this:

http://www.xs650.com/threads/what-have-you-done-to-your-xs-today.32082/page-90#post-460319

Thank you for that idea, kinda along the same idea as a spacer except with threads to lock it down. Dang I hate waiting for parts, might make a spacer in the mean time.

You may be able to find one at a well stocked auto supply store, muffler shop, or speed shop.

You shouldn't have to do this adjustment very often. Once every quite a few years to be honest. I would use a small dab of blue locktite to hold the threaded piece against turning by the cap. That should handle it.

xjwmx said:

You shouldn't have to do this adjustment very often. Once every quite a few years to be honest. I would use a small dab of blue locktite to hold the threaded piece against turning by the cap. That should handle it.

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The problem is the threaded stud is sticking out too far and the cap hits the end of it before sealing against the case, Anyway, Napa stocks an 02 sensor nut which I ground the points of the hex down enough to fit in the recess, along with a copper washer the problem is solved and there are still flats on the nut to tighten it with.
Thanks for the replies!

What you really want to do is upgrade that type D tensioner to a type E. If you watch eBay, you can usually find one for $20 or less.

5twins said:

What you really want to do is upgrade that type D tensioner to a type E. If you watch eBay, you can usually find one for $20 or less.

Click to expand...

Yep, will do !