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up-fixing der car(ma)
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Rusty cylinders
Digging through my garage I found a set of lightly rusted Biral 2.4 cylinders. Can these be reused? What do I clean them with? Hone after I suspect... How about the corresponding pistons ? BTW, I wasn't the one that made them rusty...
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03-07-2005, 05:45 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Soak them in evapo-rust. You'll be shocked at how good they look after. Just make sure you clean them first in the dishwasher...
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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03-07-2005, 05:54 PM
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up-fixing der car(ma)
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Cool. Where do I get this evapo-rust? Thx, SK
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03-08-2005, 12:02 AM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Here's the list of US distributors:
http://www.evapo-rust.com/usdistrib.html It is expensive, but reusable. You should be able to soak every rusty part you run across in this stuff. The best part is the stuff isn't corrosive, so you can leave the aprts soaking as long as you want.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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03-08-2005, 07:27 AM
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Registered
Join Date: Aug 2003
Location: New Zealand
Posts: 310
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Hi
Rust looks bad but isnt, use wire wool or a scotch-brite pad and any rust kill (which is usually 15% phosphoric acid), I'd hone afterwards HTH Neven |
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03-10-2005, 12:30 AM
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Try not, Do or Do not
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Bore them .040 oversize and buy JE pistons. The result is better than new.
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Henry Schmidt SUPERTEC PERFORMANCE Ph: 760-728-3062 Email: supertec1@earthlink.net |
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03-10-2005, 04:31 AM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Evapo Rust results are better than phosphoric acid, but reboring w/ JE pistons sounds like the ticket.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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03-10-2005, 05:48 AM
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up-fixing der car(ma)
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The JE/85mm deal sounds good, and I'd do it otherwise, but the pistons are some sweet 2.4S models (nice condition)... I found them in a 2.2T motor last summer, full of water. If possible, I'd like to use the 2.4S pistons with the cylinders.. Otherwise I'll just do the JE/thing and sell the pistons by themselves. What do you think?
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03-10-2005, 01:52 PM
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3 restos WIP = psycho
Join Date: Feb 2005
Location: North of Exit 17
Posts: 7,665
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Are the cylinders rusty inside and outside? I'd still try the evapo-rust and see if they are within spec. As I said before, it is non-etching, so it won't remove anything other than rust. A hone might prove them to be OK.
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- 1965 911 - 1969 911S - 1980 911SC Targa - 1979 930 |
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03-10-2005, 02:45 PM
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up-fixing der car(ma)
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They have aluminum outside, so just inside, yes. Thanks Kenikh.
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03-10-2005, 08:11 PM
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Try not, Do or Do not
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If the 2.4 "S" pistons are so nice, use these cylinders for a .040 over conversion and go on the search for more serviceable cylinders. You won't have to look for 2.4"S" cylinders just 2.2 or 2.4 biral cylinders.When you've purchased the newer cylinders look at the final results and use the ones you like and sell the other set.
That's my 2 cents worth.
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Henry Schmidt SUPERTEC PERFORMANCE Ph: 760-728-3062 Email: supertec1@earthlink.net |
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03-11-2005, 06:12 AM
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Porsche
Retor 911
Scarab
Riley
