[Myrddin]

Prior to the introduction of the "EVO" engine in 1986, oil leaks were common. The differential expansion of different metal types on either side of the seal caused damage in a short time frame.

[Niteflyr]

Prior to the introduction of the "EVO" engine in 1986, oil leaks were common.

My '03 Twin Cam 88 is as dry as a powder house...:o)

[ColdWater]

>Prior to the introduction of the “EVO” engine in 1986, oil leaks were common. <

With the “EVO” engine, oil leaks are ....

http://www.google.com/search?hl=en&source=hp&q=harley+evo+engine+oil+leaks&aq=f&aqi=&aql=&oq=&gs_rfai=