Oil consumption problems
Discussion
I have mentioned this problem before, but had a new idea lately. My 500 is using a lot of oil, a lot meaning 3-4 liters on a 1000 km (600 miles) trip on the motorway, doing between 170-200 km/h. It's not that bad on short journeys, but still about 2-3 liters per 600 miles.
Before, I had a performance problem but this was solved by changing the cam (P404). With the new cam the in gear times were cut by 25% and acceleration times were way better than standard TVR measurements. So, very happy.
However, after taking the car on the long trip described above (2000 km in total), it felt a lot slower and was beaten by standard 500's on the Zolder circuit.
Now I was thinking: can it be that the high oil consumption has polluted the engine, injectors etc. and that performance has dropped because of that?
Any idea what needs to be done to correct the oil consumption and what the cost estimate is for that?
thanks guys.
Before, I had a performance problem but this was solved by changing the cam (P404). With the new cam the in gear times were cut by 25% and acceleration times were way better than standard TVR measurements. So, very happy.
However, after taking the car on the long trip described above (2000 km in total), it felt a lot slower and was beaten by standard 500's on the Zolder circuit.
Now I was thinking: can it be that the high oil consumption has polluted the engine, injectors etc. and that performance has dropped because of that?
Any idea what needs to be done to correct the oil consumption and what the cost estimate is for that?
thanks guys.
Gerjo,
I hope you are well ...... wait 'til you see my new brakes at Zolder next year !
The cinsumption you are talking about seems way too high for any 500. When running in my newly rebuilt engine it wan't doing that kind of conmsumption.
My gut feel is that you are losing performance and oil as it is being blown past the rings. You are probably also pressurising the sump with knackered rings.
For that consumption to be occuring you must be burning the oil unless you have a serious leak.
If the rings/bores are that worn you will lose compression and this will knock of performance. This is part of the issue with old engine, although mine was not using anywhere near that amount of oil.
Hard luck if it is the case, but you will have to have it rebuilt. I do agree that if there is that much oil being burnt then the engine stands little chance of producing any performance.
Get it sorted in time for Zolder !
I hope you are well ...... wait 'til you see my new brakes at Zolder next year !
The cinsumption you are talking about seems way too high for any 500. When running in my newly rebuilt engine it wan't doing that kind of conmsumption.
My gut feel is that you are losing performance and oil as it is being blown past the rings. You are probably also pressurising the sump with knackered rings.
For that consumption to be occuring you must be burning the oil unless you have a serious leak.
If the rings/bores are that worn you will lose compression and this will knock of performance. This is part of the issue with old engine, although mine was not using anywhere near that amount of oil.
Hard luck if it is the case, but you will have to have it rebuilt. I do agree that if there is that much oil being burnt then the engine stands little chance of producing any performance.
Get it sorted in time for Zolder !
johno said:
Hard luck if it is the case, but you will have to have it rebuilt. I do agree that if there is that much oil being burnt then the engine stands little chance of producing any performance.
Get it sorted in time for Zolder !
hi Johno,
Can't wait to see your new setup next year.
To rebuilt, what are we talking about and what would be a rough cost estimate?
Will it go bang if I wait a few thousand km's?
>> Edited by gerjo on Sunday 28th November 16:21
Gerjo,
If the engine is a bad as mine was (and it wasn't using oil) there is a good chance it won't last for too long .... on the rebuild front you will need to budget £4000 ..... That's how much mine was at V8D, although it was relined and needed a few other bits ...
You can get it done more cheaply than that, depending on what needs doing, but if you budget than, then you won't be left looking for extra ....
Cheers
Mark
If the engine is a bad as mine was (and it wasn't using oil) there is a good chance it won't last for too long .... on the rebuild front you will need to budget £4000 ..... That's how much mine was at V8D, although it was relined and needed a few other bits ...
You can get it done more cheaply than that, depending on what needs doing, but if you budget than, then you won't be left looking for extra ....
Cheers
Mark
2 Smokin Barrels said:
Sorry to hear this Gerjo, can't really ad anything to the comments so far except try a thicker mineral oil maybe.
Tim
Can't really agree with this. It must just mask an existing problem?
Or the oil could be to thin in the first place and that's the problem? Rovers are old technology, they like oil volume low pressure which means the thick stuff. My turbo engine preferred 20/50. Anything thinner used to make it rattle and mobile 1 was the absolute pits. I settled on kendal initially and then amsoil. Didn't have any consumption or noise issues after that.
Mind you, I did burst an oil cooler, revving the engine from cold on a winter's day but I was younger then
Boosted.
2 Smokin Barrels said:
Sorry to hear this Gerjo, can't really ad anything to the comments so far except try a thicker mineral oil maybe.
Tim
Can't really agree with this. It must just mask an existing problem?
I agree that there is possibly something wrong with the engine, but changing for thicker oil may help at least in the short term, especially if its oil getting past the rings.
Before replacing the cam, the engine was checked thoroughly, incl the compression; rockers were replaced as well as some other bits and pieces.
Strange thing is that my engine has always used a lot of oil, just more so lately. Performance has always been good before the worn cam and seemed to be o.k. again with the new P404. Just now, about 3.000 km after the cam replacement, the power seems to have degraded.
Strange thing is that my engine has always used a lot of oil, just more so lately. Performance has always been good before the worn cam and seemed to be o.k. again with the new P404. Just now, about 3.000 km after the cam replacement, the power seems to have degraded.
Out of interest what is the rough consumption for the 500?
When I ran mine on Mobil 1 it got through roughly a litre every 600-700 miles, though most of that was motorway driving.
Switched to Castrol RS 10/60 and it is now nearer 1 litre per 1500 miles, in same conditions. Oil pressure is up too, but that is obviously linked to higher viscosity.
Maybe I'm not caning it enough
Not sure if sustained higher speeds means it should drink more, though I guess the longer that the oil is well up temp and less viscous means more can seep away. Just a thought?
My ex had/has a Tamora and they recommended (in the handbook) the same oil for that (i.e. Mobil 1). It is still too thin for the Speed 6. It drank it down like pi55 cheap lager.
The fascination or mis-representation for Mobil 1 must come from years back when they sponsored or gave funds to the Tuscan Race series? There are better products out there for a Rover V8.
When I ran mine on Mobil 1 it got through roughly a litre every 600-700 miles, though most of that was motorway driving.
Switched to Castrol RS 10/60 and it is now nearer 1 litre per 1500 miles, in same conditions. Oil pressure is up too, but that is obviously linked to higher viscosity.
Maybe I'm not caning it enough
Not sure if sustained higher speeds means it should drink more, though I guess the longer that the oil is well up temp and less viscous means more can seep away. Just a thought?
My ex had/has a Tamora and they recommended (in the handbook) the same oil for that (i.e. Mobil 1). It is still too thin for the Speed 6. It drank it down like pi55 cheap lager.
The fascination or mis-representation for Mobil 1 must come from years back when they sponsored or gave funds to the Tuscan Race series? There are better products out there for a Rover V8.
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