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Old 05-10-2012, 07:25 AM   #4
The Bavarian Butcher
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Joined: Sep 2009
Location: Atlanta, GA, USA
Oddometer: 3,576
Originally Posted by DiabloADV View Post
Some strangeness...

Pistons measure 93.3mm. Cylinders 93.7mm.

Book says R90/6 is 90mm. 100's pistons are 93.96mm (or bigger for overbores...).

So...what the heck do I have here...?

Any help....?
You had a 0.2mm gap all the way around? That seems high to me ... Both cylinders?

Not to be a jerk ... but are you sure you're reading your caliper right? If it is correct, then it's a WAY overbore on an R90 ... but I'll bet that it's a R100.set though.

Just tryin to help ...
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