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benoz
 Post subject: engine number question
PostPosted: Sun May 20, 2007 1:00 pm 
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1098cc
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Joined: Fri Jul 15, 2005 8:13 pm
Posts: 1674
Location: Bunbury/Barrow Island
could someone ID an engine number for me #12HD09 1319**?

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slinkey inc
 Post subject:
PostPosted: Sun May 20, 2007 3:04 pm 
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1275cc
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Joined: Wed Jun 14, 2006 9:45 pm
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Location: Adelaide, SA
12HD is listed as a 1300 Metro engine, eg. 1275.

Post 1970, 12H would mean 1275cc, east west. Not entirely sure about the D but it appears to be the type of 12H, not sure exactly what it is though.

<edit> Forgot to say, as this is important, I could not find 12HD09, I could find 12HD24 from a Metro 1300 HLE and 12HD26 from a pre-89 leaded fuel MG Metro.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)


Last edited by slinkey inc on Sun May 20, 2007 3:07 pm, edited 1 time in total.

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9YaTaH
 Post subject: 1275
PostPosted: Sun May 20, 2007 3:06 pm 
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Joined: Sun Apr 11, 2004 11:32 am
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Location: Sthrn HiLoLands, NSW, Australia
1275cc solid wall block??

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slinkey inc
 Post subject:
PostPosted: Sun May 20, 2007 3:11 pm 
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Found it!

Metro 1.3 Saloon 12HD09, 9.75:1 compression, year 1989.

Would be a solid back 1275 as said above, I am lead to believe that ONLY Cooper S 1275s had removable tappet covers.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)
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benoz
 Post subject:
PostPosted: Sun May 20, 2007 4:32 pm 
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Joined: Fri Jul 15, 2005 8:13 pm
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Location: Bunbury/Barrow Island
thanks for that slinky!8)

If anyone knows anything about the relative merits of this engine I'd appreciate letting me know but sounds OK so far!

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Mike_Byron
 Post subject:
PostPosted: Sun May 20, 2007 4:41 pm 
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1275cc
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Joined: Mon Sep 19, 2005 4:57 pm
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Slinky
Just to clarify - all pre A plus small bore motors had removable tappet covers.

Of the the 1275 (big bore range) range only the Cooper S type range had removable tappet cover. This did include the exotic purpose build engine range like the 970, 1071 as well as the 1275.
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drmini in aust
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PostPosted: Sun May 20, 2007 7:36 pm 
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All smallbore A+ motors had the removable tappet covers too.

Trivia- some may ask why are these covers called `tappet covers'?
The name goes back to the old side valve engines (before OHV)- where the tappet adjustment was a screw and locknut in the top of the cam follower, which pushed the valve open directly. :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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slinkey inc
 Post subject:
PostPosted: Sun May 20, 2007 9:31 pm 
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1275cc
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Yeah sorry, i was a bit missleading, I did mean 1275 only, not talking about smallbores.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T 8)
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