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Old 04-27-2012, 11:22 PM
Pete Munroe Pete Munroe is offline
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Join Date: Mar 2003
Location: PVE, CA
Cobra Make, Engine: ERA 289 FIA #2027, 65' 289" PS wheels
Posts: 345
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All,

Finally got the main caps off.

Bearing #2 is fried...blackened, delaminating, slight bluing on the main cap edges.

Bearing #3 is seriously worn, but never broke up...seemed reasonable the side of the bearing had broken off and fallen to the bottom of the pan...but they didn't. The front and rear sides are worn down to the copper, the flat surface is scored into the copper at one edge.

Bearings #1 and #4 are moderately scored.

#5 is still in place, will put #1 back on and replace the pan to remove the engine and protect the lower end.

In the next day or so I'll put up a few photos of the #2 main and the #3.

Rod bearings are quite worn and not pretty.

At this point, I am thinking the crank will need to be turned, wondering if the main cap that is lightly blued will result in a need to be line-honed or bored.

Hope to get the engine on the stand in the next week or two.

The uneven wear on different bearings makes me wonder if the crank was ground properly to begin with.

Hope not too many more surprises...will follow up here as I try to figure out why main bearing #2 went south...

thanks, Pete
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