Cooper S running on
Discussion
(Or is it Dieseling)
I've been running around in my friends 1275, 1972 Mini Cooper S for a day or two, shaking it down ready for an outing on the Rally of the Tests at the end of this month.
One irritating problem which has been present on this Car for the time I've known it, is it's tendency to run on after the ignition has been cut.
I notice in the manual that the Coopers should have a valve to prevent this, (bracketed in to the right hand side of the engine bay). Question is, are these engines prone to this (hence the valve) what causes it and is it something I should try and resolve?.
The Engine seems to run fine, though it does seem a bit lumpy at idle and doesn't clean up until gets above 2000rpm, not sure if this is linked or just a bit of a balance issue on the carbs.
Carbs are the twin SU set up inch and quarters I believe.
I've been running around in my friends 1275, 1972 Mini Cooper S for a day or two, shaking it down ready for an outing on the Rally of the Tests at the end of this month.
One irritating problem which has been present on this Car for the time I've known it, is it's tendency to run on after the ignition has been cut.
I notice in the manual that the Coopers should have a valve to prevent this, (bracketed in to the right hand side of the engine bay). Question is, are these engines prone to this (hence the valve) what causes it and is it something I should try and resolve?.
The Engine seems to run fine, though it does seem a bit lumpy at idle and doesn't clean up until gets above 2000rpm, not sure if this is linked or just a bit of a balance issue on the carbs.
Carbs are the twin SU set up inch and quarters I believe.
Actually I'm saying it ran fine, what actually happened is it started loosing Oil Pressure mid way through he second day, even though the levels were fine. By the end of the third day we had zero pressure and a louder and louder transmission whine. Eventually (As I understand it) an idler gear failed and the layshaft snapped.
I expect the Oil pump failed, but what surprises me is that the top end didn't go first, I can only assume that the Oil stayed in the lower part of the system and was in effect causing too much drag by pooling around the Gears.
I expect the Oil pump failed, but what surprises me is that the top end didn't go first, I can only assume that the Oil stayed in the lower part of the system and was in effect causing too much drag by pooling around the Gears.
I will make sure the Garage has looked at the pick up.
Wasn't my Car or my decision, but I guess considering the cost of entry and the commitment we had made to do it, one might be prepared to take the risk that it was a sender error.
It's the second time the Driver has entered (my first) and he was determined to get to the finish as last year the Diff blew on the first day, he agree with the organisors that he would go back home get another of his Cars (he has a few) then knocked the sump plug off it!. It's rare that you break two Cars on one Rally!
At least this time we got a finish, though I had to use a bit of 'rallymanship' to achieve it.
Wasn't my Car or my decision, but I guess considering the cost of entry and the commitment we had made to do it, one might be prepared to take the risk that it was a sender error.
It's the second time the Driver has entered (my first) and he was determined to get to the finish as last year the Diff blew on the first day, he agree with the organisors that he would go back home get another of his Cars (he has a few) then knocked the sump plug off it!. It's rare that you break two Cars on one Rally!
At least this time we got a finish, though I had to use a bit of 'rallymanship' to achieve it.
To be honest I think he was working on the theory the engine was going to need a rebuild anyway so why chuck the cost of the entry away with a certain DNF when we could well have got it to the finish and to all intents and purposes did do. Only on the last test did the sound become blindingly obvious that some major was afoot mechanically.
Bear in mind Engine maladies aside this event cost the thick end of £4000.00.
Bear in mind Engine maladies aside this event cost the thick end of £4000.00.
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