Aluminium vevhus (Motorblock)

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Älvis
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Location: Västerås
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Aluminium vevhus (Motorblock)

Post by Älvis »

Hej!

Hur vet man att ett vevhus är aluminium eller Magnesium när det är en -68:a :?:

Ska finnas både och det året.
912, -65 6401 Slate gray /White int. (Karman)#450527, Barn find
912, -66 6603 Golfblau /Black int. (Porsche)#351843, Barn find
911L -68, Silbermatallic / Red Recaro Sport lether int. Resturation.
911T-72 6262 Hellgelb / Black int, Resturation
zithlord
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Joined: Tue Jan 02, 2007 1:49 pm
Location: Asker Norge

Post by zithlord »

The type numbers were the same for the 1968 engines with both the sand cast aluminum crankcase and the die cast magnesium crankcase. For the US cars the Type numbers were 901/14 for the manual transmission at 901/17 for the Sportomatic transmissions. These would be last numbers of the sand cast series: 901/14 3280631, 901/17 3380148

Beside the serial number the best way to tell is by looking at the crankcases. The sand cast aluminum crankcase has a rough sand cast finish and has sort of a bright silver look. The sand cast aluminum crankcases also had fins on the bottom of the crankcase, which the magnesium crankcase did not have. The die cast magnesium crankcase has a very smooth finish and a modeled gray color. The gray is the Dow Corning finish that Porsche used to slow down the corrosion process.

John
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Älvis
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Tack

Post by Älvis »

Tack!

Då har jag antagligen Aluminium.

S/N 3180095

och under oljekylaren är det grovkornig gjutning och ljusa silver look
912, -65 6401 Slate gray /White int. (Karman)#450527, Barn find
912, -66 6603 Golfblau /Black int. (Porsche)#351843, Barn find
911L -68, Silbermatallic / Red Recaro Sport lether int. Resturation.
911T-72 6262 Hellgelb / Black int, Resturation
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