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Message
I measure the thickness of the weight at 1.024" on the Series 4,
and 0.920" on the S5 counterweight.
Can anyone verify these dimensions? Rusty?
Good timing
Dave. I looked at the hanger for the S4 counterweight the other day, and
couldn't find it. Next, I looked in the junk parts box in the attic,
nope. Finally, while I was messing with the single rotor today,
I noticed a pile of parts that I had out when I was building the
single. Sure enough, it was in that pile.
So, attached
are a couple pics. My measurements are just a bit different from
yours, but you're correct on which one is which. I annotated the
measurements and weights on the first pic. The S4 also has an odd
milled area near the hub, which is visible on the second pic. I'm thinking
these may be cast, then either drilled or milled as needed to have the
correct stock balance for that series counterweight. Just a
guess though.
My other dilemma is my rear counterweight - I don't know which one I
have. Assuming Mazda used a similar method to change the weight on the
rear end there may be a measurable difference there as well.
Mine measures 0.550. I am hoping it is for a series 5 rotor.
Anyone have one around that they can measure?
You're one
your own there, because I don't have one anywhere. It would sure be nice
to be able to document the difference though.
Do you have
your engine off, and torn down? I'm dying to know what you
find.
Rusty (single
rotor stuff to follow)
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