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Chris,
The ES has two plates on the engine mount spaced just about the perfect width for the two bearing block plates. If there's any play in the assembly Lancair uses aluminum shims to make a tight fit. On the fastbuild ESs, the strut is already fit to the engine mount when the kit is delivered. Mine came with one shim.
Another issue I found was that the powder coat on the new strut extended slightly over the shoulder on the strut posts which might be susceptible to chipping away over time. So a tight fitting strut at initial installation could develop some play if the powder coat chipped away. I removed the powder coat from the shoulders of the posts and made sure my bearings were tightly seated against the shoulder on the posts. Then used shims to make a snug fit when I inserted the assembly between the plates on the engine mount. I had to gently tap the assembly into position.
Without the spacers that hold the bearings fully seated into the bearing blocks, a bearing could slip on initial installation if the strut/bearing block assembly was a little too wide. With the spacers, that can't happen. My assembly wouldn't even fit in the engine mount without chipping off the power coat from the strut post shoulders.
Mike Easley
Colorado Springs
ES
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