Bearing Clearance
#21
The min-max 0.00004" difference is not much less tight in my book. I found no other official specs after doing several web searches and found them to be similar for the original Buick 225. Recommended clearances seem to be unusually small compared to typical for some reason(?) and that's what our QC guy wants to check for. As No Doubt said once checked and final assembly done, "Either the crank turns or..."
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#23
Where did you find the a lot less tight clearance spec for the LR V8? We would like to see them.
The min-max 0.00004" difference is not much less tight in my book. I found no other official specs after doing several web searches and found them to be similar for the original Buick 225. Recommended clearances seem to be unusually small compared to typical for some reason(?) and that's what our QC guy wants to check for. As No Doubt said once checked and final assembly done, "Either the crank turns or..."
......
The min-max 0.00004" difference is not much less tight in my book. I found no other official specs after doing several web searches and found them to be similar for the original Buick 225. Recommended clearances seem to be unusually small compared to typical for some reason(?) and that's what our QC guy wants to check for. As No Doubt said once checked and final assembly done, "Either the crank turns or..."
......
#24
The following 2 users liked this post by Jeff Blake:
number9 (03-18-2018),
Sixpack577 (03-18-2018)
#26
Main bearings
Main bearing diametrical clearance . . . . . . . . . . . . . . 0.010 to 0.048 mm 0.0004 to 0.002 in
Oversizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.254, 0.508 mm 0.01, 0.02 in
Big-end bearings
Big-end bearing diametrical clearance . . . . . . . . . . . 0.015 to 0.055 mm 0.0006 to 0.0021 in
Oversizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.254, 0.508 mm 0.01, 0.02 in
End-float on journal . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15 to 0.36 mm 0.006 to 0.01 in
Main bearing diametrical clearance . . . . . . . . . . . . . . 0.010 to 0.048 mm 0.0004 to 0.002 in
Oversizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.254, 0.508 mm 0.01, 0.02 in
Big-end bearings
Big-end bearing diametrical clearance . . . . . . . . . . . 0.015 to 0.055 mm 0.0006 to 0.0021 in
Oversizes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.254, 0.508 mm 0.01, 0.02 in
End-float on journal . . . . . . . . . . . . . . . . . . . . . . . . . . 0.15 to 0.36 mm 0.006 to 0.01 in
4th edition is in the Range Rover section of Rave for those that have the whole enchilada.
Same specs made it into the General Data section of the RR Workshop Manual as well.
Specs in the Defender section even more generous.
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Last edited by number9; 03-18-2018 at 11:05 PM.
#27
#28
#29
The following users liked this post:
Sixpack577 (03-20-2018)
#30