10-04-2022, 12:34 AM
In the far off days when decokes were routine it was often claimed that some customers reported a decline in performance, presumably due lowered c.r.
In the 1960s my RP burned a lot of oil but near every use involved over a mile flat out and a 120 mile mostly flat out open road run most weekends. The top speed used to rapidly fall from 50 to little more than 45. A decoke immediately restored althought the carbon was not enormous. I can only presume the breathing was restricted. Did not notice the effect with later head or other makes.
It is claimed that any water entering cylinders causes carbon to disappear.
In the 1960s my RP burned a lot of oil but near every use involved over a mile flat out and a 120 mile mostly flat out open road run most weekends. The top speed used to rapidly fall from 50 to little more than 45. A decoke immediately restored althought the carbon was not enormous. I can only presume the breathing was restricted. Did not notice the effect with later head or other makes.
It is claimed that any water entering cylinders causes carbon to disappear.