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-   -   Alusils with no cross hatch pattern (http://forums.pelicanparts.com/porsche-911-technical-forum/405506-alusils-no-cross-hatch-pattern.html)

peppy 04-23-2008 06:57 AM
Alusils with no cross hatch pattern
 
I know that it is a big gamble to reuse alusil cylinders, but I do not see any cross hatch pattern on the cylinders. Is this real bad?
http://forums.pelicanparts.com/uploa...1208962614.jpg
http://forums.pelicanparts.com/uploa...1208962625.jpg
http://forums.pelicanparts.com/uploa...1208962640.jpg

Porsche-O-Phile 04-23-2008 07:14 AM
Normal AFAIK - it just means they haven't been re-honed recently.

john walker's workshop 04-23-2008 07:20 AM
they don't have hone marks. you can ruin them by honing them improperly. they really don't need honing at all. just check for round and taper and ring them. or do a search for a past thread about honing alusils for about a thousand different opinions.

peppy 04-23-2008 07:24 AM
What is AFAIK?

Thanks!!!

Porsche-O-Phile 04-23-2008 07:28 AM
Sorry, "as far as I know".

All the alusil bores I've ever seen on 944/951/968 engines look glass-smooth like that.

Porsche-O-Phile 04-23-2008 07:28 AM
Sorry, "as far as I know".

All the alusil bores I've ever seen on 944/951/968 engines look glass-smooth like that. Only newly-rehoned cylinders have the cross-hatch.


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