I have visited a famous diesel lab in Rawalpindi to discuss the low diesel average in my Sunny 2.0D. The guy at the lab figured out that clutch plates/pressure plates are weak so they were not producing right pressure. He observed that my car generates more sound on 4th & 5th gear and it doesn't speed up (as it should have been). Although the pickup was Ok on the 1st, 2nd and 3rd gears but he has advised me to firstly get the clutch plates/pressure plates check & fix. According to him, the average will be a lot better once this is resolved. He said that if any further fine-tuning is required (in pump/injectors etc) then he can look into it after clutch pressure issue is resolved.
Other than the above method, what is the way to ENSURE that the clutch plates are faulty? Also, will I have to replace clutch plates/pressure plates & clutch bearing OR can the existing clutch material be repaired? Also let me know your thoughts that how much effect is made on the bad fuel consumption due to weak clutch system?
Just for information - my car has been driven around 130,000 Km till today. When I purchased this car around 1.5 years ago, its meter reading was 112,000 Km. At that time, I replaced the timing belts but I didn't carry out any work re clutch system. I assume that the clutch system is factory fitted. Can any body tell me what is the average life of clutch system in Sunny 2.0D?
Looking forward to see expert opinion from Xulfiqar & others. Thank you.