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Schleprock
Join Date: Sep 2000
Location: Frankfort IL USA
Posts: 16,639
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Quote:
Nikasil BMW M60 V8 engine block info
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Kevin L '86 Carrera "Larry" |
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01-08-2005, 04:20 PM
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Join Date: Oct 2003
Location: Bremerton, WA
Posts: 378
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So if there were to be a suggestion out there on a serviceable set of cylinders would you hone with the “grape “style and use the paste or just one or the other?
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1983 911SC 1977 911S "parting out" |
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01-09-2005, 10:10 AM
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Banned
Join Date: Feb 2003
Location: So California
Posts: 3,787
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I would suspect the results to be the same with either hone. We need to finish the experiment and hone and analyze a cylinder with a grape style hone just like was done with the paste.
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01-09-2005, 12:23 PM
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Location: City of Seattle, WA
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So, I guess PBH never got an alusil from Jerry and sent it to the old-timer, then to Rondinone to have Rondinone measure and EM it? I know, lots of work and lots of links in the chain, but it would be cool to see.
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Andy |
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03-07-2005, 11:08 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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No one ever sent me anything. I am still willing to cough up the $15 or whatever if anyone wants to send me a cylinder and someone will measure it.... There isn't even a first link in this chain
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-07-2005, 11:13 AM
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Join Date: Mar 2002
Location: Grove City, OH
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I have a spare used one for the experiment. PM me an address and I will send it out. Thanks for doing this!
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AKA: Dr Evil on the 914World forum, need your tranny rebuilt, or want a "How to rebuild your transmission DVD" set? PM me. -74 914 with 74 2.7 CIS -74 VW Bus with modified 3.1 corvair engine and 3.0 CIS fuel injection system. -74 BMW R90 |
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03-07-2005, 01:49 PM
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Location: City of Seattle, WA
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I guess to be very consistent it should be one from Jerry st. germaine's set that rondinone used, but that set was pitted and such a wreck I wouldn't think of actually re-ringing them, so maybe it would be better to use a half-decent one like mike presumably has.
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Andy |
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03-07-2005, 02:29 PM
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Have you guys read Henry Schmidt findings in this thread. Just thought I'd add the link since his data and testing is important to this thread.
do I need to hone this? |
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03-07-2005, 04:10 PM
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Location: City of Seattle, WA
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Simon, it's very good info but Henry tested Nikasil cylinders, not Alusil. Still worth linking to, no doubt.
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Andy |
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03-07-2005, 07:08 PM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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Can someone measure one if I get it prepared?
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-08-2005, 03:47 AM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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I can do the measurements. If you don't mind destroying the cylinder we can take a look with the electron microscope. Otherwise we'll have to settle for a profilometer measurement, which will accurately profile the cylinder wall. Galling will be evident either way, microscopy is easier to interpret.
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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03-08-2005, 09:07 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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I'll PM Mike 95925 and see if he can mail it to me....
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-08-2005, 09:33 AM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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My cylinder arrived from Mike95125 today!! Now I feel like a bit of an idiot, shouldn't it be measured before and after 'honing'? I was thinking that he could hone just the bottom 1/2, but that really won't work, since the upper 1/2 should be worn as much.
Rondinone, any suggestions? Should I send it to you for pre-inspection?
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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03-24-2005, 06:33 AM
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Join Date: Mar 2003
Location: Darnestown, Maryland
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Anybody see the post on the carbon pistons?
I don't know the technology, but it might be an option for those with worn cylinders to go oversized. If we extend the life of what we have maybe some day there will be a solution so we can keep the alusil cylinders!
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Bill Miller 81 Targa Guards Red 3.6, M&K 1 out, S4 brakes 83 ROW CAB Rubinrot Metallic (RIP) |
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03-24-2005, 06:50 AM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
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My only concern is that carbon pistons won't transfer heat. Since air cooled cars use the oil to draw away heat via the pistons, that heat most likely will get soaked by the heads and cylinders only. It doesn't sound healthy for the motor. I can definitely see the advantage with water cooled cars.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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03-24-2005, 07:50 AM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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You can send it to me, I'll profile what I can and return it to you. PM me for my address. Thanks,
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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03-25-2005, 06:32 PM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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OK I finally measured the compression. 6k miles post rebuild with the AN-30 treatment, all cylinders between 150 and 155 warm. That's almost exactly what it was before the rebuild.
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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04-08-2005, 06:15 PM
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Slumlord
Join Date: May 2001
Location: Canada
Posts: 4,983
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Rondinone: It's still underway, just too busy at work....
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84 Cab - sold! 89 Cab - not quite done 90C4 - winter beater |
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04-09-2005, 01:27 PM
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Join Date: Mar 2004
Location: City of Seattle, WA
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good job keeping this moving forward, guys!
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Andy |
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04-10-2005, 12:39 PM
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Who is John Galt?
Join Date: Jun 2003
Location: Knoxville, TN
Posts: 638
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that's fine. Get it to me when you have time. Thanks,
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'79 911sc Targa '02 slk230 kompressor '84 Tamiya Falcon A democracy cannot exist as a permanent form of government. It can only exist until the voters discover that they can vote themselves largesse from the public treasury. From that moment on, the majority always votes for the candidates promising the most benefits from the public treasury with the result that a democracy always collapses over loose fiscal policy, always followed by a dictatorship. The average age of the world's greatest civilizations has been 200 years. |
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04-10-2005, 05:00 PM
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1978 Porsche '78SC Coupe 3.0
