21 replies to this topic

[feybrand]

what year did the change from a to a+ engine happen
i need to know as i have a 1980 engine with no stiffening ribs on that i thought was an a series but when i tried to order a new gearbox the bloke swore blind that that year is a a+ engine

[feybrand]

does anyone have a rough idea so i can get it ordered

[liirge]

they changed over in 1980

[Mini-Mad-Craig]

998 Plus

The A-Plus version of the 998 cm³ motor was produced from 1980 until 1992.

Applications:

* 1980–1982 Mini 1000/City/HL, 39 hp (29 kW) at 4750 rpm and 52 lbf·ft (71 N·m) at 2000 rpm
* 1980–1982 Austin Allegro, 44 hp (33 kW) at 5250 rpm and 52 lbf·ft (71 N·m) at 3000 rpm
* 1980–1990 Austin Metro, 41 hp (31 kW) at 5400 rpm and 51 lbf·ft (69 N·m) at 2700 rpm
* 1982–1988 Mini HLE/City E/Mayfair, 40 hp (30 kW) at 5000 rpm and 50 lbf·ft (68 N·m) at 2500 rpm
* 1981-1986 Austin Metro HLE 46 bhp (34 kW) and 52 lb·ft (71 N·m)
* 1988–1992 Mini City/Mayfair, 42 hp (31 kW) at 5250 rpm and 58 lbf·ft (79 N·m) at 2600 rpm

[Ethel]

The A+ was launched with the Metro in the back end of 79. I think the rollover to the Mini will have been a bit vague, they probably just phased it in as the stock of A parts was used up.
They only difference that matters for an engine swap is the transfer gears.

A+ transfer housings have 3 bolt holes for a Metro engine mounting on the back.

[feybrand]

ho do i work it out then the engines a 1980 850 and is a smooth block (no stiffening ribs on the back) so i presumed it was an a series but now im not so sure

[Ethel]

Thinking about it, it will have been '80 I can remember it been launched while I had my first job.

850's never went in Metros so no reason for them to produce any A+ ones

As I said, your best clue is the Metty bolt bolt holes.

[Guess-Works.com]

Don't think any 850's were produced in A+ format...

Just checked parts catalog, a big clue is the dizzy drive and that was only ever referenced as the A series version on the 850, so I'm 99% sure the 850 was only ever produced in A series form, and even checking Metro parts this also reference only the A series dizzy drive for the 850 metro.

Edited by GuessWorks.co.uk, 11 August 2009 - 03:58 PM.

[feybrand]

why would i be looking for metro bolt holes on a mini did they put the holes on all a+ engines
also im a novice so whats a transfer housing is that the bit on the back of the box where the rods go into

Edited by feybrand, 11 August 2009 - 03:57 PM.

[feybrand]

niether did i but now both the bloke at minispeed and at minisport reckon it should be an a+

[Guess-Works.com]

Note there is a difference between the engine being A+ and the gearbox.... ALL metro's will be fitted with an A+ gearbox, regardless of the series of the engine, because the A+ transfer case has the engine mounting for the metro on it... an A series transfercase, and hence gearbox, cannot be installed in a Metro.

Edited by GuessWorks.co.uk, 11 August 2009 - 04:03 PM.

[feybrand]

i havent got a metro and the engines out of a mini so how do i work out for definate what ive got

[huntface]

I doubt it would be an A+ 850 as the 850 was discontinued in October 1980

[huntface]

i havent got a metro and the engines out of a mini so how do i work out for definate what ive got

Have you got the engine number? I think Guessworks has a page where you can decipher the number

[feybrand]

i always thought it was an a series its just the so called experts when i try to order a gearbox they claim it should be an a+