The pulley just exaggerates any wobble on the crank, making it easier to spot.
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Originally posted by Error404 View Post
Andy yes I have found not all shells are equal, so you have a bit of variation to play with.Current-2004 Impreza PPP wagon
Sold-92 3B coupe-RS2+, 996s, konis, rear torsen, forged rods........
Sold ABY-stock
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Cheers Hamish
Originally posted by andy10v View PostTrial and error with plastiguage? And then swap tight-loose?Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
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Originally posted by Error404 View Post
Fit the caps and torque them, then measure the bearing tunnel with an inside micrometer or a telescoping gauge. Then measure the journal. The difference is going to be the bearing thickness plus the oil clearance. Then measure the thickness of all the shells and match them up as closely as you can to the cap/journal requirements. Then you can test fit the bearings in the tunnel and measure again the inside diameters to check. You can then use plastigage as a final stage during test fitting to check your work but it is really not designed as a measuring tool.Current-2004 Impreza PPP wagon
Sold-92 3B coupe-RS2+, 996s, konis, rear torsen, forged rods........
Sold ABY-stock
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Originally posted by Error404 View Post
I measured the pistons and weighed them, matching them up with their respective rods. The pistons are within 0.012mm of each other so I will get the block bored to suit the largest piston - better to have a tad too much clearance than not enough. Worth noting that they averaged around 81.94 so just building it going by the box spec would have meant some of them were only running 0.055mm bore clearance - bad news! Always check!
Have you measured the actual cr those pistons give? Those look like the 8.0 cr pistons?
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Originally posted by JariP View PostHave you measured the actual cr those pistons give? Those look like the 8.0 cr pistons?sigpic
1991 Audi S2 3B - 2.5 Stroker engine
1997 A6 2.5TDi quattro avant - C4
1976 RD250E / 350LC cafe racer
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Originally posted by JariP View PostAre you sure the 0.012mm difference is in the pistons themself or is it just the difference in skirt coatings? I think there's a note in some Wossner prochure that says the pistons are measured without the skirt coating. And measuring with coating gives you false readings.
Have you measured the actual cr those pistons give? Those look like the 8.0 cr pistons?Panthero Coupé quattro 20vt
Indigo ABY coupé
Imola B6 S4 Avant
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