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another silly eccentric question


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I just r/r my head and cant remember if the eccentric holes that you use all go the same way.I thought they all rotated so you are on the side of the lobe that goes with the nut.(imean it doesn't want to kick the feeler gauge out it pulls it inward/or tight....ward. sorry I looked this up and got drilled with popups.thanks all

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(exhaust side) the hole in the eccentric for the adjusting tool faces down

towards the exhaust manifold

(intake side) the hole in the eccentric for the adjusting tool faces up

towards the intake manifold

the eccentric adjusting holes face away from the cam

wheres yer repair manual?

'86 R65 650cc #6128390 22,000m
'64 R27 250cc #383851 18,000m
'11 FORD Transit #T058971 28,000m "Truckette"
'13 500 ABARTH #DT600282 6,666m "TAZIO"

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It would be tricky to get it wrong, but it's not impossible.

What's SUPPOSED to happen is that the holes are all pointing out,

away from the cam, as CD says, and you rotate them further out

to tighten the lash.

I tried reversing 'em once, and that just didn't work. Ok, it was accidental,

but I looked at it and thought, 'hey, I'll try this'. It failed. I couldn't get to the

adjusting holes.

A reground cam with oversized adjusters will have a different 'range' than

a standard one- depending on the size of the base circle, the adjusters

may be much farther 'around' on their clocking.

help any?


"I learn best through painful, expensive experience, so I feel like I've gotten my money's worth." MattL

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