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Registered
Join Date: May 2006
Location: San Jose, CA.
Posts: 247
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cleaning pistons and cylinder
They are very heavily greased and difficult to get off. What is the best way to clean the pistons and cylinder. Can I use something like simplegreen and hot water?
Thanks John |
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11-11-2006, 09:19 PM
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Registered
Join Date: Jan 2001
Location: So. Cal.
Posts: 9,118
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I would think about taking them to a decent machine shop. They would do a really good job.
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Marv Evans '69 911E |
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11-11-2006, 10:03 PM
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Registered
Join Date: Mar 2005
Location: Northern CA
Posts: 4,703
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there were some threads on this on the engine bbs...some chemicals...soaking overnight and all comes off easily
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Sold: 1989 3.2 coupe, 112k miles |
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11-12-2006, 06:34 AM
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Somatic Negative Optimist
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Re: cleaning pistons and cylinder
Quote:
What are you cleaning? Just the outside (Fins) of the cylinders? To get the cylinders off, you'll need a long 10mm Allen for the barrel-nuts. Are you dismantling the engine? If so, take everything apart and bring the parts to a shop that has a parts washer, you'll like it! 
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats.  Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
Last edited by Gunter; 11-12-2006 at 07:03 AM.. |
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11-12-2006, 06:59 AM
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Registered
Join Date: May 2006
Location: San Jose, CA.
Posts: 247
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I disassembled the cylinder and piston. The piston are very dirty, lots of carbon buildup on the top and lot s of gunky oil deposit on the rings. Some of the oil deposit on the ring has been caked on and is difficult to remove. I don't want to use a screw driver on it, but a plastic card or brush is not hard enough to scrape it off. I've use brake cleaning spray on it to take off the grease but, no use on the hard stuff.
Thanks John |
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11-13-2006, 07:50 AM
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MBruns for President
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berryman's chem tool and a stiff nylon brush. Let the tops soak in over night (actually a few nights makes it easier) keep all your pistons and cylinders numbered so you keep them together and in order.
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Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2 |
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11-13-2006, 08:09 AM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
Posts: 56,277
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Take them to a machine shop. For cheap they'll give you parts that are clean as new.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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11-13-2006, 08:54 AM
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Somatic Negative Optimist
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John:
Machine shop is your best bet. Not only will they clean the stuff, they'll check to make sure that the P/C's are in spec. Very often, the land for the first ring gets hammered and becomes too wide. If that happens, you'll have to make a choice. If the cylinders are Mahle (Nikasil) and in spec, you can go with new JE pistons. I hope you don't have KS (Alusil) P/C's.
__________________
1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats. Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ".
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11-13-2006, 09:04 AM
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ME 262 (SOLD)
Colibri
Gas Mizer
Mileage King
Dog Bus
Gone to California
Turbo
