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Brick*Racer
 Post subject: 12YD
PostPosted: Tue Apr 08, 2008 7:37 pm 
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848cc
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Location: VB country
Just got a quick question as im a little baffled. Is the 12YD motor a 1275cc found on late model clubmans or is it a 1100s motor found on the rovers as i have found conflicting advice both on this site when i did a search and also on the net and all this confusion is making my head hurt :shock: :shock:

Cheers
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drmini in aust
 Post subject: Re: 12YD
PostPosted: Tue Apr 08, 2008 7:41 pm 
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Location: near Baulkham Hills, NSW
Brick*Racer wrote:
Just got a quick question as im a little baffled. Is the 12YD motor a 1275cc found on late model clubmans or is it a 1100s motor found on the rovers as i have found conflicting advice both on this site when i did a search and also on the net and all this confusion is making my head hurt :shock: :shock:

Cheers


12YD/Ta/H is a later Morris 1100S, 1275cc.
The changeover for cranks small journal/ large journal is 12YD/Ta/H10487 - 12YD/Ta/H10488

Earlier small J ones were 12Y/Ta/H prefix.

I have a few examples.... :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:


Last edited by drmini in aust on Tue Apr 08, 2008 7:46 pm, edited 1 time in total.

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Brick*Racer
 Post subject:
PostPosted: Tue Apr 08, 2008 7:45 pm 
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Cheers Doc

Then which ones were on the 1275LS clubby's, were they the 12H motors?
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drmini in aust
 Post subject:
PostPosted: Tue Apr 08, 2008 7:47 pm 
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Not seen one lately but yes I believe so.
They were UK built motors, basically same as a UK 1275GT.

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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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Morris 1100
 Post subject:
PostPosted: Tue Apr 08, 2008 7:53 pm 
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A lot of the engine number guides on the net are wrong about the Australain engine numbers.
The 1275LS got an engine with 12H902UH******, they never got 12YD/Ta/H. It was impossible! But a lot of websites will tell you differently.

The 1275LS motor is similar to an Austin Allegro but with a pollution air pump.
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Brick*Racer
 Post subject:
PostPosted: Tue Apr 08, 2008 8:05 pm 
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Morris 1100 wrote:
A lot of the engine number guides on the net are wrong about the Australain engine numbers.
The 1275LS got an engine with 12H902UH******, they never got 12YD/Ta/H. It was impossible! But a lot of websites will tell you differently.

The 1275LS motor is similar to an Austin Allegro but with a pollution air pump.


So I'm learning. :evil:

Thanks for all your help guys
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Mick
 Post subject:
PostPosted: Tue Apr 08, 2008 8:20 pm 
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Location: Under the bonnet son!
Morris 1100 wrote:
The 1275LS motor is similar to an Austin Allegro but with a pollution air pump.


Were the LS engines mechanically fuel pumped or otherwise??

I have a plate on the pump hole, and a PO fitted a facet down aft.

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drmini in aust
 Post subject:
PostPosted: Tue Apr 08, 2008 8:27 pm 
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LS all had a mech pump. :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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Morris 1100
 Post subject:
PostPosted: Tue Apr 08, 2008 8:33 pm 
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drmini in aust wrote:
LS all had a mech pump. :wink:
Yep. :D
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Timinik
 Post subject:
PostPosted: Thu Jul 24, 2008 10:38 am 
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So the 12YD engine is the morris 1100s one?
My mini K has one fitted in it,, and its been hurting my head too!
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1018cc
 Post subject:
PostPosted: Thu Jul 24, 2008 10:42 am 
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WHOLLY THREAD REANIMATION BATMAN! :P

Better this way than starting a new thread though IMHO.

Morris 1100 wrote:
Used in Morris 1100S and probably early 1275 Moke

:wink:

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Timinik
 Post subject:
PostPosted: Thu Jul 24, 2008 10:50 am 
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1018cc wrote:
WHOLLY THREAD REANIMATION BATMAN! :P

Better this way than starting a new thread though IMHO.

Morris 1100 wrote:
Used in Morris 1100S and probably early 1275 Moke

:wink:


Search button is there for a reason... :wink:
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1018cc
 Post subject:
PostPosted: Thu Jul 24, 2008 10:58 am 
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Timinik wrote:
Search button is there for a reason... :wink:


BEST.......

QUOTE......

EVER!

:mrgreen:

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Wombat
 Post subject:
PostPosted: Thu Jul 24, 2008 11:58 am 
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Son's Moke has a 12YD/Ta/H motor - but it's a transplant - other numbers don't match and it has drum brakes :?

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Morris 1100
 Post subject:
PostPosted: Thu Jul 24, 2008 4:47 pm 
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A Moke will not have been made with a 12YD/Ta/H motor.
It is a Morris 1100S motor and nothing else. :wink:
The D refers to a variant only used in the 1100S
The Ta refers to the remote control centre change gearbox that was not fitted to the Moke (they have a U instead of a Ta)
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