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Old 12-19-2022, 09:19 PM   #4
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Join Date: Sep 2018
Location: Laval QC
Posts: 646
Originally Posted by Homeoboxter View Post
... Your bores seem damaged because of the pistons seized in the bores due to the lack of lubrication...
The pistons did not seize... they all slid out normally when I separated the cases

Originally Posted by Homeoboxter View Post
What do your pistons look like? The bores allegedly can be reconditioned to some extent with the Sunnen AN-30 compound, some people had good results with it. I`ve never tried it. The problem with this in your case is that the pistons have a ferrous/iron coating which may have been damaged because of the seizing. This may lead to aluminum-to-aluminum (since the bore itself is is Al-Sil) contact and subsequent seizing. If you have plenty of time you may try, I`d be very curious to see how it turns out. You may end up wasting your time though.

Check out these links: - Porsche Forum : View topic - Identifying bore scoring - with photos

You may consider Nickel Silicon Carbide plating, $750/bank.
The pistons seem to be OK, I'll have to do a closer inspection. I'll have a look at your links.
Arctic Silver 2000 Boxster S - bought with a broken engine, back on the road with the engine replaced
Green 2000 Boxster 5-speed and 1978 928 auto
1987 924S 5-speed (Sold) - Blue 2000 Boxster 5 spd (Sold)
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