A number of people have upgraded their 1.9 engines for 2.1 and have then had bottom end failures. It is necessary to maintain the 2.1 liter engines oil cooler when doing this. The 2.1's longer stroke seems to cause the oil to operate at much higher temps than the 1.9. Even with the oil cooler working, 260'F and up is normal at 4,000rpm. Most bearing or rod failures are not caused by normal wear. Something failed or wear was really excessive which would have provided much warning before parts started flying. Excessive oil temps will thin the oil out enough that oil can actually stop pumping at all. Hope this helps someone, Dennis |
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