The cam chain tensioner is a spring-loaded plunger that bears against a reinforced section of a rubberized blade. The first 1200s had a metal plate fitted to help position the blade against the blade. I imagine there were some problems with this because the manual advises that it should be removed.
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| Cam tensioner unit is visible in lower right corner of the blue box. The problem metal plate is the cadmium plated part that is visible around the plunger |
I tried refitting it at first to understand what the issue was. It was tough to get it around the blade because the rubber had swollen.
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| The end of the camchain tensioner is visible in the center |
3 comments:
All looks pleasingingly lovely.
What's that cage gizmo (with 4 fingers) round your cam chain tensioner? No such on mine.
I see no sprung loaded plunger on the end of your tensioner rod. Have you removed it or was it simply not present.
Ta
If you fill the holes for the cam cover bolts in the top of the cam caps with oil, it'll get forced down through the cam journals when you refit the cover bolts. Nice way to ensure lube on first start up me thinks.
The cage gizmo is the thing that must be removed and consigned to the bin. It's what I described in my post as a metal plate but 'cage thingy' is a much better way to put it.
There is a spring-loaded plunger but it isn't very visible. The plunger is prevented from retracting by a ratchet mechanism that engages with teeth machined into on side.
I know what you mean about being able to used the cam cover bolts to force oil into the cam journals. It's also a really good reason to make sure the bolts are completely clean before refitting them.
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