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| engine number question https://www.ausmini.com/forums/viewtopic.php?f=2&t=31932 |
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| Author: | benoz [ Sun May 20, 2007 1:00 pm ] |
| Post subject: | engine number question |
could someone ID an engine number for me #12HD09 1319**? |
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| Author: | slinkey inc [ Sun May 20, 2007 3:04 pm ] |
| Post subject: | |
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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| Author: | 9YaTaH [ Sun May 20, 2007 3:06 pm ] |
| Post subject: | 1275 |
1275cc solid wall block?? |
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| Author: | slinkey inc [ Sun May 20, 2007 3:11 pm ] |
| Post subject: | |
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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| Author: | benoz [ Sun May 20, 2007 4:32 pm ] |
| Post subject: | |
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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| Author: | Mike_Byron [ Sun May 20, 2007 4:41 pm ] |
| Post subject: | |
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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| Author: | drmini in aust [ Sun May 20, 2007 7:36 pm ] |
| Post subject: | |
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. 
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| Author: | slinkey inc [ Sun May 20, 2007 9:31 pm ] |
| Post subject: | |
Yeah sorry, i was a bit missleading, I did mean 1275 only, not talking about smallbores. |
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