10 replies to this topic

[mininut37]

Hi all,

I've got the opportunity to purchase a 1275 engine with manual gearbox. I'm having trouble identifying where it's from and what spec it is.

The code is 12H 293f. This doesn't show on the guessworks engine decoder. 292 and 294 are both listed, and they are auto boxes. The one I'm talking is manual.

It also has an 11 stud head, and no separate tappet chest covers.

I'm thinking its a standard ADO16 1275 and not 1300GT. Anyone know anything more?

Thanks

Alex

[nicklouse]

Do you have photos?

[mininut37]

Unfortunately not

[Spider]

It's a Transverse 1275, (originally)  fitted with Twin Carbs, Crankcase Breather to PCV, Exhaust Emission, a C40 Dynamo, Standard Ratio All Synchro Gearset with Remote Control.

[DeadSquare]

It's a Transverse 1275, (originally)  fitted with Twin Carbs, Crankcase Breather to PCV, Exhaust Emission, a C40 Dynamo, Standard Ratio All Synchro Gearset with Remote Control.

The Oracale has spoken.

[Spider]

The Oracale has spoken.

 

Gword help us !   

[Itsaminithing]

It's a Transverse 1275, (originally)  fitted with Twin Carbs, Crankcase Breather to PCV, Exhaust Emission, a C40 Dynamo, Standard Ratio All Synchro Gearset with Remote Control.

Which car/model did it come off??

12H293f isn't on the ADO16 engine list, spent 30mins chatting with someone who has a MG & a GT & the most that we could find out that was that it was a High Compression 1275 with twin carbs.

[Spider]

Which car/model did it come off??

12H293f isn't on the ADO16 engine list, spent 30mins chatting with someone who has a MG & a GT & the most that we could find out that was that it was a High Compression 1275 with twin carbs.

 

I don't know hence why I didn't say. I have a BMC paper list of Transverse A Series Power Units.

My best guess though is it was fitted to a GT1300 or the equivalent MG Model.

I'd also say, with that combination of ancillaries, it was only in production for a short time.

 

12 is a 1275 engine (most likely 'standard' compression ratio)

 

H is Transverse 

 

The code " 293 " is a combination of the composition Yd + Re + Ub + Te

These decode to;-
Yd    Mechanical Fuel Pump
Re    Exhaust Emission Control
Ub    Lucas C40 Dynamp
Te     Standard Ratio, remote control gearbox - all-speed synchromesh

The code F deciphers to Carburetor Crankcase Ventilation and Twin Carburetors

I have also seen over the years many various 'lists', seldom complete. Even this one I have I've found has stuff missing.
 

[Itsaminithing]

Confusing isn't it!!

 

You could be right about the compression-

11 stud head is indicative of a high compression engine ....but Exhaust Emission Control suggests a standard compression lump, poss an export version.

A late Austin America would fit the bill, except as far as I know they were only available with a single carb.

 

I did wonder if the plate was worn & it was actually 12H298f (from memory a MG 1300, Riley 1300 or maybe early 1300GT) but they had a close ratio gearbox so that doesn't fit either!

 

 

[Spider]

The double coding system they used I find quite clunky to use. I'm not sure that it's necessarily confusing, but we have a missing link here.

 

298 would decode to Ub + Xf + Xe

 

Ub       Lucas C40 Dynamo
Xf        I don't have that one, though I wonder if this might be a typo and should be Sf which is Crankcase Ventilation Control ?

Xe       Close Ratio Remote Control Gearbox - All Synchro

 

I have the 12H family in that listing as having been fitted to;-

 

Austin 1300
Morris 1300
MG1300
Wolseley 1300

Riley Kestrel 1300

Princess 1300

 

As it's a BMC listing, it predates the 1275 GT and later Minis that were also fitted with 12H engines as well as the Metro Range. It's also a UK domestic listing, so doesn't include the models made for export, like the Austin America.

 

I have a factory Australian 1100 / 1100S Workshop Manual, which includes UK made cars. According to that, the 11 stud heads were fitted to engines having 8,8:1 CR ('Standard' Compression Ratio) and 9.75:1 CR (High Compression). We had a model here called the 'Morris 1100S' which is a misnomer, as these were fitted with 1275 engines. Later we had a model they badged as 'Morris 1300', however that was pretty much the 1500 range car, but fitted with the 1275 Auto.

 

As a 'by the way', the Low Compression Engines were 8:1,,,,,, (I shake my head). These weren't fitted with the 11 stud heads.
 

[mininut37]

It could have been an 8 ot a 3 as the plate was dirty! Thank you for these replies, it's a bit of a mystery.

If I buy the engine I'll update with more info