 Cylinder boring, Sizes? |
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| Black22 |
 Dec 13 2011, 06:28 PM
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Senior Member  Group: Members Posts: 886 Joined: 1-November 07 From: Creswell, OR Member No.: 8,290 Region Association: Pacific Northwest  |
I heard people here say that boring out your 94mm cylinders is probably a better bet than buying new, possibly sub-par due to metals used, cylinders. What about the 93mm cylinders? Would the cylinder walls be too thin? Am I wrong in assuming all cylinders are cast the same thickness and then bored out to specific sizes before distribution?
I have a 1.8 that I'm taking to a 1911. I was going to wait until the motor gave out. Well it still runs strong and is very peppy, but I just spun a rod bearing and she's knocking pretty bad after a decent drive. (IMG:style_emoticons/default/barf.gif) Already have a new crank ands pistons, just need to know if I have the Mahle 93mm stock cylinders, should I bore them out or buy new 96mm AA cylinders? |
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| r_towle |
Dec 13 2011, 09:39 PM
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Custom Member Group: Members Posts: 24,705 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States 
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QUOTE(Black22 @ Dec 13 2011, 07:28 PM)  I heard people here say that boring out your 94mm cylinders is probably a better bet than buying new, possibly sub-par due to metals used, cylinders. What about the 93mm cylinders? Would the cylinder walls be too thin? Am I wrong in assuming all cylinders are cast the same thickness and then bored out to specific sizes before distribution? I have a 1.8 that I'm taking to a 1911. I was going to wait until the motor gave out. Well it still runs strong and is very peppy, but I just spun a rod bearing and she's knocking pretty bad after a decent drive. (IMG:style_emoticons/default/barf.gif) Already have a new crank ands pistons, just need to know if I have the Mahle 93mm stock cylinders, should I bore them out or buy new 96mm AA cylinders? you can bore the 1.8 ones out. I believe Rimco, near you, does this and has for a few years. Rich |
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Posts in this topic
Black22 Cylinder boring Dec 13 2011, 06:28 PM
jcd914 1.8 cylinder should be fine to bore out for the 96... Dec 13 2011, 07:19 PM Jake Raby Boring cylinders requires a torque plate to mimic ... Dec 13 2011, 09:10 PM Jake Raby Rimco did a good job with this before Todd left...... Dec 13 2011, 09:49 PM Cap'n Krusty Whatever you do, be sure to buy the correct piston... Dec 14 2011, 10:43 AM
Black22
Whatever you do, be sure to buy the correct pisto... Dec 14 2011, 11:14 AM 76-914
Rimco did a good job with this before Todd left..... Dec 14 2011, 08:53 PM Black22
Rimco did a good job with this before Todd left.... Dec 14 2011, 08:58 PM Jake Raby
[quote name='76-914' post='1588915' date='De... Dec 14 2011, 10:13 PM Black22
[quote name='76-914' post='1588915' date='D... Dec 14 2011, 11:14 PM |
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