Blown Motor Concerns
Posted March 24, 2002 - 04:13 PM
1st. On the rod where the wrist pin runs there was some very slight scoring. Probably only a couple .001's deep but just enough to feel. Is this going to be REAL expenxsive in the future? Anyone else notice this on theirs during rebuilds. It looks like a lack of oil to the wrist pin where it runs in the rod.
2nd on the crankshaft itself right where the rod connects both sides of the crank are colored from heat (tinted blue). The crank is blueish for probably 1" in each direction in diameter from the rod. Anyone else seen this?
Any bets or opinions on if my bottom end is going to self destruct too? Should I have bit the bullet and done the bottom end also?
BTW I've been running Mobile 1 15/50 for the past 1.5 years and change it religiously at least every third ride but usually every other ride.
Posted March 24, 2002 - 05:04 PM
Posted March 25, 2002 - 05:52 AM
I am on my third top end and anticipate replacing both the rod and camchain on my next freshen up.
Posted March 27, 2002 - 05:56 AM
The gun metal blue you see on the crank is from inductive hardening process in the crank pin area. This is normal manufacturing process and nothing to worry about.
Posted March 28, 2002 - 04:36 PM
Thanks for the info guys!!