 2.0 Crankshaft Measurments, Lapping Diameter?? |
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| pilothyer |
 Mar 16 2015, 12:10 AM
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Member  Group: Members Posts: 838 Joined: 21-May 08 From: N. Alabama Member No.: 9,080 Region Association: South East States  |
I am looking at the Porsche 914 Factory Manual Volume 1 (914-4 Engine & Clutch) On page 6.3-2/2 There is a chart on reconditioning of crankshaft which gives the crank pin diameters for the mains and the conrods. The first on the list is a new or normal main bearing pin which has a rated diameter of 60 mm, then it shows a measurement called lapping diameter one being 59.990 mm the other 59.971 mm.
I would like to know what the lapping diameter is, what is meant by "lapping dia." ? |
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Posts in this topic
pilothyer 2.0 Crankshaft Measurments Mar 16 2015, 12:10 AM
sixnotfour lapping = polish Mar 16 2015, 09:35 AM
r_towle
lapping = polish
licking if you are a dog....
P... Mar 16 2015, 12:10 PM pilothyer Thanks for the responses, Can I assume then that a... Mar 16 2015, 12:46 PM rgalla9146 Yes Mar 16 2015, 08:10 PM pilothyer Thanks :) Mar 17 2015, 08:42 AM  |
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