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Registered User
Join Date: Sep 2011
Posts: 17
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WTB 95mm piston
New to me project 1979 928. Because of low compression I did take engine apart and found two pistons had land area between top two ring groves broken. I did buy a set of 95 mm pistons off ebay but one was damaged at bottom of skirt. Because pistons do not match (one flat top and one dished top) I do not know if I could combine 4 flat top with 4 dished top. One other option would be to have bottom skirt welded back on but not sure if that could be done. What I would like to do is buy additional 95 mm dish top piston and put in with the ebay set. I think the dish top pistons are in 1980 - 1982 928 and they are #2 pistons. sahlhom@gmail.com
  
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11-03-2011, 05:11 PM
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PCA Certified D.I.
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I have a full set of 81 (USA) pistons still on the rods, I think. Email me at Sepiantony2@bellsouth.net. I'll be at the other house tomorrow and try to take pics if I remember it. Make offer + shipping. I'll sell one or all.
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11-12-2011, 06:03 PM
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Registered User
Join Date: Sep 2011
Posts: 17
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One more try find a piston with tolerance #2 from 1980 928 (should be from m28/13 or m28/14 engine). Thank you.
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12-17-2011, 06:02 AM
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Network Native
Join Date: Jan 2007
Location: SoCal
Posts: 10,349
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Check with 928 International |Porsche 928 Parts | New, Used and Rebuilt before sale is over (ask or mention 1/2 price in order).
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12-19-2011, 02:30 PM
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Registered User
Join Date: Sep 2011
Posts: 17
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Thanks for the suggestion but 928 international does not have 95mm tolerance #2 - it must be a rare piston size for 1980.
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12-22-2011, 03:29 PM
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Registered User
Join Date: Sep 2011
Posts: 17
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bump - Car is still not together so still have a chance to find 95mm #2 tolerance piston.
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01-28-2012, 04:42 AM
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Registered
Join Date: Jul 2007
Posts: 241
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a few listings above there is an entire set of tolerance group 2 euro pistons, brand new- seems to be exactly what you are looking for
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02-25-2012, 07:18 AM
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Registered User
Join Date: Sep 2011
Posts: 17
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I did find a solution to the piston problem. I just want to Thank everyone for helping my solve this problem.
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02-26-2012, 05:51 AM
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Registered
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Those bores don't look right. Have they been sanded or the surface disturbed in any way. If so, that is bad. The bore surface is supposed to be smooth like this. Gunar
 
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82 928 Euro S 5 speed, sport seats,Moss Green/Champagne 04 996 C4S conv tip Polar Silver/Metropol blue |
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02-27-2012, 06:25 PM
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Registered User
Join Date: Sep 2011
Posts: 17
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They do make flex hone now for nikasil engines.
EngineHones.com Your Hone Solutions Supplier Nikasil Flex-Hones (Aluminum Oxide) Nikasil Applications Hones are made with a softer material, Aluminum Oxide. These special hones are required for todays coated aluminum cylinders. These aluminum oxide hones are recommended for nikasil and chrome coated cylinder bores. |
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02-28-2012, 06:13 AM
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Registered
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Quote:
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82 928 Euro S 5 speed, sport seats,Moss Green/Champagne 04 996 C4S conv tip Polar Silver/Metropol blue |
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02-28-2012, 08:27 AM
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Registered
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Nikasil is a plating process. Alusil is cast into the cylinder or a (alusil) sleeve is pressed into place. Mercedes Benz Alusil Cylinder Conditioning - YouTube
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82 928 Euro S 5 speed, sport seats,Moss Green/Champagne 04 996 C4S conv tip Polar Silver/Metropol blue |
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02-28-2012, 08:32 AM
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Registered User
Join Date: Sep 2011
Posts: 17
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Ok - thanks for the info.
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02-28-2012, 03:59 PM
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Blue Streak
Burn notice
82 928S Euro 5spd
