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bdonally bdonally is offline
Registered User
Join Date: Dec 2001
Location: Off grid in Eastern ONtario
Posts: 209
Rod Bushings

I am bit confused with the wrist pin bushings.
As shown in the photos, the surface appears worn, partly bronze color and partly grey.
I have searched and haven't found any photos to compare.
The bushings measure within spec, 23.010 mm across the rod and 23.020 along it.
This results in 0.02mm clearance to the pins ( which are all 23.00), at the low end of the Porsche spec.
Seems to me if I have new bushing installed, the resulting clearance will be the same as I have now.
What should these bushings look like? Is the mottled appearance wear or a result of honing to size?
Any thoughts will be appreciated

Bob D.
'84 Carrera - MAF, Wong chip, RSR flywheel, ER bushings and other bits, CTR fiberglass F/R bumpers, 7/9 Fuchs, 22/27 TB, 22/21 SB, bunch of other little stuff
'69 Lotus 7 Series 3; '74 Fiat X1/9
'14 X5 diesel
Old 06-16-2018, 12:19 PM
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