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EMPIImp69
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Joined: April 17, 2006
Posts: 3374
Location: Dirty Jersey
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 Posted: Tue Jan 19, 2016 2:52 pm Post subject: Case machining for larger cylinders |
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On a 1600DP AS41 case, in order to fit a 92mm or 94mm piston/cylinder, what does the OD size (in mm) of the opening in the case need to be so the cylinder slips in? Thanks
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Brian_e
Samba Member
Joined: July 28, 2009
Posts: 3284
Location: Rapid City, SD
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| Posted: Tue Jan 19, 2016 3:57 pm Post subject: Re: Case machining for larger cylinders |
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About .010-.013" larger then the bottom register of your cylinders. I have found AA cylinders slightly larger then old mahle's.
Brian |
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Rome
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Joined: June 02, 2004
Posts: 9637
Location: Pearl River, NY
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| Posted: Tue Jan 19, 2016 4:56 pm Post subject: Re: Case machining for larger cylinders |
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| Here you go. The case opening for "traditional" 92's would be the same as for 90.5; that is, 92 "thin walls". 92 thick walls would use the same case bore as 94's. http://www.geneberg.com/cat.php?cPath=1_31 |
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modok
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Joined: October 30, 2009
Posts: 26776
Location: Colorado Springs
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| Posted: Tue Jan 19, 2016 5:17 pm Post subject: Re: Case machining for larger cylinders |
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92 cylinder bottom 96mm
94 cylinder bottom is 97.3mm |
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EMPIImp69
Samba Member
Joined: April 17, 2006
Posts: 3374
Location: Dirty Jersey
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| Posted: Tue Jan 19, 2016 6:29 pm Post subject: Re: Case machining for larger cylinders |
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| Rome wrote: |
| Here you go. The case opening for "traditional" 92's would be the same as for 90.5; that is, 92 "thin walls". 92 thick walls would use the same case bore as 94's. http://www.geneberg.com/cat.php?cPath=1_31 |
Thanks, that's what I needed. Probably going to get thickwall 92s and bore to 97.25 or maybe use 94s.
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Greezy Joe
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Joined: April 12, 2010
Posts: 1534
Location: Crawfordville, Fl
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| Posted: Wed Jan 20, 2016 6:33 am Post subject: Re: Case machining for larger cylinders |
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When I use 94's I cut the case for 92's and have the cyl cut to fit the 92 spec. This way you have more sealing surface for the base of the cyl.
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