Author Topic: Question about bearings and crank dimensions  (Read 1385 times)

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Offline Porschedave

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Question about bearings and crank dimensions
« on: March 20, 2013, 09:44:00 AM »
Hi Folks
What oil clearance can I expect between the crank main bearings and the crank journals? The bearings are new and sized to match the machined crank. With my measurements I get 3 thou and this seems consistent with Jim Martin's engine-build resource but I thought that I'd ask around before I assemble this engine (for my '65 notch restoration).
Thank you.
Dave

Offline jim martin

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Re: Question about bearings and crank dimensions
« Reply #1 on: March 24, 2013, 08:50:51 AM »
sounds like your on the right track,always happy to hear someone assembling there own motor , if you have any concerns contact me and i will be glad to help




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Offline Porschedave

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Re: Question about bearings and crank dimensions
« Reply #2 on: March 24, 2013, 10:06:43 AM »
Hi Jim
Thank you for your post and offer to help. I have read your engine-build thread a number of times and in fact am following all of the instructions regarding measurement in preparation for assembly. After a bunch of time I think that I have successfully measured the bearings in the case, the journals and compared the two as well as the cam and the oil pump. I still have to do measure the rods. I have weighed them and selected a set that is pretty close to the same weight and thenI think that I am good to assemble. This is for a type 3 engine, 1776 with a full-flow setup.
Thanks again for your for offer and for the build sheet.
Dave
http://www.thesamba.com/vw/forum/viewtopic.php?p=5600139&highlight=#5600139