8 replies to this topic

[a2lt16v]

998 gearbox onto a 1275

if yes any one know whats the best type of 998 garbox to use

they had different final drive values didnt they?

[Guess-Works.com]

basically there's no difference between a 998 and 1275 gbox... the differences are to do with the age of the vehicle.

If we just deal with Rod Change boxes, there are two basic sorts PreA+ and A+

A+ gearboxes are normally identified by a large diameter bearing for the idler and a grove down the middle of the gears, they also have a slightly different pitch angle of the gear, which is all to make the box quieter.

Pretty much all A+ boxes have the same ratios, with the only difference being the final drives (diff), which is age and source dependant..

A series boxes have a smaller idler bearing and no grove... and also have slightly different ratios to the a+

You also can get Close ratio boxes ( fitted to old cooper's and gt's )

Also look at thread....

http://www.theminifo...?showtopic=3851

You need a gearbox which has the same size idler bearing as the one pressed into your crankcase cover...

Large idler shaft diameter = .875"
Small idler shaft diameter = .750"

[Alex1380]

no they won't i can't remmber why but we were trying to put a 1100 gearbox on to a metro 1275 and it wouldn't gear together
ill find out why tonight and post again.

[Guess-Works.com]

They wont gear, generall means you were attempting to combine different pitch gears, I suspect the 1275 was a metro with an A+ Primary, and idler, and the gearbox was an Pre A+.

You cannot mix and match between A series and A+, unless you have the complete drop gears from one and the gearbox from another.

[a2lt16v]

dunno what it is its off a 998 1992 model and the little 998 block is warped so head gasket keeps going so i was gonna put a recon 1275 in it

but the gearbox on the 998 is good

[Guess-Works.com]

With that age, if you drop a 1275 from a metro, there will be no fitting problems at all...

If you do got that route, you'll obviously want a 1275 head aswell, so you'll also need a top radiator hose and bracket for a 1275 ( the angle is different to a 998 )

[a2lt16v]

cheapest i have found one reconditions is 450 with recon head to

all but no gearbox

what about the clutch

[Guess-Works.com]

take the complete flywheel/clutch from your 998 and stick on to the 1275, job done....

As for a recon engine for 450 ??? hmmm... You can get a morspeed 1293 kit for 350 notes... gives you 100 notes to find a head on ebay !!!

http://www.morspeed....engine_kits.htm

[a2lt16v]

is that enough money for one are they special heads

im only just into minis and got 1800 to do mine up and get girlfriend new engine

mine is have new floors sills and steps at moment then new rear panel then being sprayed and girlfriend (mini_claire) needs an engine