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 Post subject: Engine gurus please
PostPosted: Fri Nov 08, 2013 12:55 pm 
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Joined: Mon Jul 26, 2004 7:23 am
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Location: Sunny Shine Coast, Qld Australia
Just got the two engines down from my son's

12YD/Ta/H/7336 ---1100 or 1275??

and the Auto .. 12H169/H*******(unreadable) 1275 or 998?

Thanks guys

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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 1:00 pm 
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Pretty sure anything with 12H is a 1275. I can't find exactly what they are on this list (my usual resource for this type of stuff, other than Ausmini) But I profess to be the leading expert on NOT knowing this stuff :lol:

http://minis.com.au/page22/page22.html

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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 1:06 pm 
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Joined: Fri Mar 19, 2004 6:19 pm
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Location: near Baulkham Hills, NSW
12YD/Ta/H7336 is an 1100S manual, that one has small journal crank & rods.

12H/169/H is an early 1100S automatic. I have one here I've just converted for manual trans.

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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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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 1:45 pm 
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drmini in aust wrote:
12YD/Ta/H7336 is an 1100S manual, that one has small journal crank & rods.

12H/169/H is an early 1100S automatic. I have one here I've just converted for manual trans.


12YD/Ta/H7336 is an 1100S =1275cc

12H/169/H is an early 1100S = 1275cc

:D

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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 1:52 pm 
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9YaTaH wrote:
drmini in aust wrote:
12YD/Ta/H7336 is an 1100S manual, that one has small journal crank & rods.

12H/169/H is an early 1100S automatic. I have one here I've just converted for manual trans.


12YD/Ta/H7336 is an 1100S =1275cc

12H/169/H is an early 1100S = 1275cc

:D

Well, Derrrrr! :P

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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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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 1:56 pm 
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Location: Sunny Shine Coast, Qld Australia
9YaTaH wrote:
drmini in aust wrote:
12YD/Ta/H7336 is an 1100S manual, that one has small journal crank & rods.

12H/169/H is an early 1100S automatic. I have one here I've just converted for manual trans.


12YD/Ta/H7336 is an 1100S =1275cc

12H/169/H is an early 1100S = 1275cc

:D


:mrgreen: :mrgreen: :mrgreen: :mrgreen:

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 Post subject: Re: Engine gurus please
PostPosted: Fri Nov 08, 2013 7:36 pm 
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:D[/quote]
Well, Derrrrr! :P[/quote]

Don't you be derrring me Doc! :twisted: not every body knows the 1100S trick :lol: :arrow:

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 Post subject: Re: Engine gurus please
PostPosted: Sun Nov 10, 2013 7:38 am 
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9YaTaH wrote:
:D
Well, Derrrrr! :P

Don't you be derrring me Doc! :twisted: not every body knows the 1100S trick :lol: :arrow:



What is the 1100S Trick then?

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 Post subject: Re: Engine gurus please
PostPosted: Sun Nov 10, 2013 8:33 am 
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sitnlo62 wrote:
9YaTaH wrote:
:D
Well, Derrrrr! :P

Don't you be derrring me Doc! :twisted: not every body knows the 1100S trick :lol: :arrow:



What is the 1100S Trick then?

BMC in their infinite wisdom(!) back in the 60s decided to call a Morris 1100 (with a 1275 motor) an 1100S. It may have made sense in the 1275 Cooper S's heyday, but since then many people not in the know just assume an 1100S is 1100cc.
They should have called it a Morris 1300, as they eventually did (with the 1300 automatic) when the Morris 1500 arrived.

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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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 Post subject: Re: Engine gurus please
PostPosted: Sun Nov 10, 2013 9:18 am 
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Used to go to the wreckers and say 'how much is that engine in the Morris 1100?' I was getting them for between $100 and $150, back in 1985.

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