Home › Forum › Ask A Member › 55 RDE-17, 25 hp, Power Head O-rings, etc › Re: 55 RDE-17, 25 hp, Power Head O-rings, etc
July 9, 2018 at 5:54 pm
#79279
The 25hp has bronze bushings in the small end of the con rods. They eventually did wear, but if it passed the "clunk" test, don’t worry about them. Heck, be glad it doesn’t have the first attempt at needle bearing wrist pins, that fell apart.
BTW, most of the wear in the 10hp was the wrist pin bore in the pistons. On the 25 most of the wear was in the rod bushing. In the case of the 10hp, extreme wear in the piston let the wrist pin fall out.