Hi all,
I’ve got a 1275 L reg Sprite with a HIF38 Carb, Electronic ignition and stage one kit.
I’ve noticed that I’ve got the diagnostic socket with the black nipple cover on it on the bulkhead on the drivers side, under the bonnet. Is this of any use or is it just a common wiring loom? I understand from the Haynes that it is only the SPi and MPi that has one?
Cheers
could be converted back to carb. Have you got a catalyist?
> Hi all,
I’ve got a 1275 L reg Sprite with a HIF38 Carb, Electronic ignition and stage one kit.
I’ve noticed that I’ve got the diagnostic socket with the black nipple cover on it on the bulkhead on the drivers side, under the bonnet. Is this of any use or is it just a common wiring loom? I understand from the Haynes that it is only the SPi and MPi that has one?
Cheers
that was the time when they started the SPI’s… on the cooper first i think… but the wiring loom was standard for all models i think… ANORAK!!!
Most after 1992/3 went to catalytic converters, which also meant injection not carb, because the carb would run rich and knacker the cat up.
> could be converted back to carb. Have you got a catalyist?
Its a straight through Maniflow system, no cat.
Thanks biggav, so I could expect some more oddities!
RSP coopers 89/90 were on carb and built in limited numbers… after that, rover began producing a cooper as normal factory build but gave it a 1.3 injection engine. I think that the coopers were the only cars to get an injection engine initially, as time went on, carbs were phased out as were automatic gearboxes and other bits so in the end weather you had a mini or a cooper, you basically had the same engine.. just the trim level was a bit different. ie minilites, stripes and white roof, badges etc.. for this reason, many people call the RSP Carb model the last of the REAL coopers.
Unleaded engines became a legal requirement in 1989 and Cat’s i think from 1994ish… all of the model ranges were re-hashed across the board to make systems work in the short term… out of interest, your fuel tank… does it have a little flap inside the neck and go psssst when you take the cap off?
you missed out the coopers like mine
not a RSP or a injection
> RSP coopers 89/90 were on carb and built in limited numbers… after that, rover began producing a cooper as normal factory build but gave it a 1.3 injection engine. I think that the coopers were the only cars to get an injection engine initially, as time went on, carbs were phased out as were automatic gearboxes and other bits so in the end weather you had a mini or a cooper, you basically had the same engine.. just the trim level was a bit different. ie minilites, stripes and white roof, badges etc.. for this reason, many people call the RSP Carb model the last of the REAL coopers.
Unleaded engines became a legal requirement in 1989 and Cat’s i think from 1994ish… all of the model ranges were re-hashed across the board to make systems work in the short term… out of interest, your fuel tank… does it have a little flap inside the neck and go psssst when you take the cap off?
Not sure about that, will check in the morning and let you know…
> you missed out the coopers like mine
not a RSP or a injection
right… your’s is one of the last “real” coopers is it not?
> > you missed out the coopers like mine
not a RSP or a injection
right… your’s is one of the last “real” coopers is it not?
Yes the 1990/91 Mainstream Mini Cooper (came with a cat and an HIF44 carburettor as standard).
But it runs so much better with the cat removed and being a carb model means it doesn’t need to retain the cat.
Post 1992 1275cc engined non-Cooper models also had cats, but with the HIF38 carburettor as standard.
But I believe all Mini models got fuel injection by 1995?
> Most after 1992/3 went to catalytic converters, which also meant injection not carb, because the carb would run rich and knacker the cat up.
fail…my K reg 1275 mayfair had a cat, it was running a HIf38 which i believe was put on instead of a 44 for “ecconomy” had exhaust gas analiser pipe in the engine bay on the standard exhaust…that all got buggered off when i changed it all!! hahah
> > Most after 1992/3 went to catalytic converters, which also meant injection not carb, because the carb would run rich and knacker the cat up.
fail…my K reg 1275 mayfair had a cat, it was running a HIf38 which i believe was put on instead of a 44 for “ecconomy” had exhaust gas analiser pipe in the engine bay on the standard exhaust…that all got buggered off when i changed it all!! hahah
Only the 1990 RSP Cooper LE and 1990/91 Mainstream Cooper came with the HIF44 carb as standard.
All other post 1992 non-Cooper models came with the HIF38 until they switched to fuel injection around 1995?
thats fair enough then, was it for ecconomy reason? or i just been told otherwise
> thats fair enough then, was it for ecconomy reason? or i just been told otherwise
I imagine Rover didn’t see the need to fit the HIF44 as the HIF38 would do the job just as well on a standard 1275cc engine?
The HIF38 was equivalent to the HS4 and the Mini 1275GT came equipped with the HS4 carb throughout it’s production life.
If you upgrade the engine for greater performance, then fitting an HIF44 or twin-carbs would be the best move then.
> > RSP coopers 89/90 were on carb and built in limited numbers… after that, rover began producing a cooper as normal factory build but gave it a 1.3 injection engine. I think that the coopers were the only cars to get an injection engine initially, as time went on, carbs were phased out as were automatic gearboxes and other bits so in the end weather you had a mini or a cooper, you basically had the same engine.. just the trim level was a bit different. ie minilites, stripes and white roof, badges etc.. for this reason, many people call the RSP Carb model the last of the REAL coopers.
Unleaded engines became a legal requirement in 1989 and Cat’s i think from 1994ish… all of the model ranges were re-hashed across the board to make systems work in the short term… out of interest, your fuel tank… does it have a little flap inside the neck and go psssst when you take the cap off?
Not sure about that, will check in the morning and let you know…
Yes there is a non return flap in the neck with two circular holes either side, whats the significance of that?
The carb loom was different to the injection loom
The injection diagnostic socket is on the injection engine loom.
The diagnostic socket you are talking about will be green and be for the 3AS alarm sytems, as and when fitted. If there was no alarm, a link box the same shap as the alarm ECU would be plugged in in its place.
> RSP coopers 89/90 were on carb and built in limited numbers… after that, rover began producing a cooper as normal factory build but gave it a 1.3 injection engine. I think that the coopers were the only cars to get an injection engine initially, as time went on, carbs were phased out as were automatic gearboxes and other bits so in the end weather you had a mini or a cooper, you basically had the same engine.. just the trim level was a bit different. ie minilites, stripes and white roof, badges etc.. for this reason, many people call the RSP Carb model the last of the REAL coopers.
Unleaded engines became a legal requirement in 1989 and Cat’s i think from 1994ish… all of the model ranges were re-hashed across the board to make systems work in the short term… out of interest, your fuel tank… does it have a little flap inside the neck and go psssst when you take the cap off?
Only the MPi engines whether Cooper or Non Cooper, were all the same. The Cooper SPi is a subtley different engine and gearbox to the Non Cooper SPi and always has been
> Post 1992 1275cc engined non-Cooper models also had cats, but with the HIF38 carburettor as standard.
But I believe all Mini models got fuel injection by 1995?
In Germany by 1992, directly after the Mainstream Cooper. 63HP Cooper and 53HP non-cooper
> > Most after 1992/3 went to catalytic converters, which also meant injection not carb, because the carb would run rich and knacker the cat up.
fail…my K reg 1275 mayfair had a cat, it was running a HIf38 which i believe was put on instead of a 44 for “ecconomy” had exhaust gas analiser pipe in the engine bay on the standard exhaust…that all got buggered off when i changed it all!! hahah
I dont get what the fail is for?
> > > Most after 1992/3 went to catalytic converters, which also meant injection not carb, because the carb would run rich and knacker the cat up.
fail…my K reg 1275 mayfair had a cat, it was running a HIf38 which i believe was put on instead of a 44 for “ecconomy” had exhaust gas analiser pipe in the engine bay on the standard exhaust…that all got buggered off when i changed it all!! hahah
I dont get what the fail is for?
coopermpi is denying that cats were fitted with cats. That statement is incorrect.
All 92 onwards cars were fitted with cats, only the Coopers had injection, all other models were fitted with the HIF38 carb up until 1995 where they all were injection. All cars were fitted with a radiator overflow expansion tank and carbon emissions canister. 1992 was also the year that they dropped the 998 engine in favour of the 1275, so all cars from 1992 had the 1275 (1.3) engine. All non Cooper engines were rated at 53hp and the coopers and extra 10 giving 63hp. All non cooper transmissions used the 3.1:1 final drive and the Cooper used a 3.2:1 final drive. All subframes 92 onwards were different from previous, the front stretcher bar wasd the same as that on the Auto subframe, angled to move it forward a little. The engine mounting holes were moved forward 12mm to give clearance for the HIF38 carb on the bulkhead (not the popular misconception that it was for the injection manifold!)
Much of this came about at the same time to satisfy the new emissions standards and simplify the production.
