2 litre TS CF3 motor overhaul
Have a 2003 2.0 TS that has now covered 136 000 km trouble free km’s – it has since new consumed lots of oil, which some owners have reported as a problem with the CF3 motors; apparently compliance with Euro 3 emmission specs robbed these motors of power and as part of a plan to counteract this, thinner rings were fitted to the CF3 motors.
Whilst my car is still running smoothly, I want to see if fitment of new rings will cure the problem and ideally would like to get away with a “rings and bearings”job, so am going to remove the head and strip the motor with the engine block in place to save some labour costs.
If what I have been told is correct, I expect the motor to have the thinner 2 mm oil rings and not the 2.5 mm ones of the older motors? Has anyone fitted the 2.5 mm rings to pistons from CF3 motors, by having ring grooves cut ? or if not a good idea, any recommendations about brand of rings that are better than OE ?