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what the minimum clearance between head chambers 2 and 3

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volkmini

Post subject: what the minimum clearance between head chambers 2 and 3

Posted: Sun Apr 01, 2007 8:15 pm

848cc

Joined: Sun Nov 26, 2006 8:51 pm
Posts: 254
Location: Mornington

i have just got my head back from a port and polisher. he has done mini heads before so i think he knows what his doing. i had a good look at the clearances between chambers 2 and 3 and they seem pretty close. there is a very fine gab inbetween the chambers. does anyone know what the minimum clearance should be.
i can happily send you a picture if needed.
thanks

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Turbo 4agte 364WHP- 910nm Mini

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drmini in aust

Post subject:

Posted: Sun Apr 01, 2007 8:18 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39757
Location: near Baulkham Hills, NSW

Should be no less than the gasket is at that point.
:wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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volkmini

Post subject:

Posted: Sun Apr 01, 2007 8:23 pm

848cc

Joined: Sun Nov 26, 2006 8:51 pm
Posts: 254
Location: Mornington

what gasket has the smallest clearance.

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Turbo 4agte 364WHP- 910nm Mini

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drmini in aust

Post subject:

Posted: Sun Apr 01, 2007 8:31 pm

religious status

Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39757
Location: near Baulkham Hills, NSW

I use only the Payen BK450 `black' gasket, on a 1275.
Never had one burn out, even when for a while years ago I ran 2 gaskets to get the C/R down below 11:1.

The `copper' gaskets are not as well made since they took the asbestos out. So I don't use em. :wink:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:

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