 Case inspection, align bore or not |
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| 930cabman |
 Oct 16 2022, 05:52 PM
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Advanced Member  Group: Members Posts: 3,064 Joined: 12-November 20 From: Buffalo Member No.: 24,877 Region Association: North East States 
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Recently I had my local good guy machinist make a steel inspection shaft to pickup the main bearing bores leaving a thou or so clearance. Seems to make sense, similar to installing the crank with new bearings and making sure the crank spins smoothly (easy). The next part of the plan would involve fabricating another gauge to pickup the cylinder mounting surfaces. Sure this can all be done with indicators, but I am trying another tack with this process. Thoughts?
I also use Plastigage to check actual (after crush) clearances Working a 2.7 911 cases I have found the main bearing bores become elongated due to many heat/loading cycles. This is very common to this magnesium case and keeps guys like Ollies in business. Is this elongation also common to our VW/914 cases TIA |
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Posts in this topic
930cabman Case inspection Oct 16 2022, 05:52 PM
Montreal914 :popcorn: Oct 16 2022, 08:06 PM r_towle First, find the bearings you can actually purchase... Oct 16 2022, 09:03 PM
930cabman
First, find the bearings you can actually purchas... Oct 17 2022, 04:52 AM barefoot
First, find the bearings you can actually purcha... Oct 17 2022, 06:56 AM 930cabman
[quote name='930cabman' post='3036374' date='Oct ... Oct 17 2022, 10:03 AM Superhawk996
[quote name='930cabman' post='3036374' date='Oct... Oct 17 2022, 02:01 PM 930cabman
[quote name='930cabman' post='3036402' date='Oct ... Oct 18 2022, 07:45 AM Superhawk996 More info use as you see fit.
Align boring is u... Oct 18 2022, 08:37 AM Superhawk996 Regarding crush: the other post you posted to is ... Oct 18 2022, 11:49 AM 930cabman thank you for the information from King Bearings, ... Oct 18 2022, 12:58 PM  |
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