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Small question on my crank rod
Posted: Fri Nov 12, 2004 11:17 pm
by cannondale440
Heres alittle update of my engine tear down and inspection. Is that discoloration from heat in the first pic? The next two are supposed to show small end freeplay on the rod.
Posted: Fri Nov 12, 2004 11:26 pm
by cannondale440
messures to be about 1.75mm of free play
Posted: Fri Nov 12, 2004 11:27 pm
by blaze#52
the discoloration could be from heat, the rod is supposed to have side clearence on it, the spec it .002 to .018" clearence with a service limit of .040, it is it out i would send it out and have it updated with the z400 bearing.
Posted: Sat Nov 13, 2004 12:00 am
by dalewannbe
definitely send it off to get the z bearing or you could have timbo stroke it
Posted: Sat Nov 13, 2004 2:36 am
by cannondale27
Give it my hammer test.Set crank on a rag on your bench turn it to TDC then lightly holding the rod straight up with two fingers take a rubber mallet and tap the small end of the rod.Note the sound it makes if mettalic clang fix the crank.If a dull thud(sound of rubber mallet)it is good to go as long as it is in sync,true and to correct width.Looks like a brand new crank to me so it would be cheap to have z400 bearing installed if it is still god yet.
Posted: Sat Nov 13, 2004 11:59 pm
by comander420
you should have seen my crank, it was black halfway up the rod, I'm sure mine is junk. looks like you cought yours in time before it got really damaged
Posted: Sun Nov 14, 2004 12:44 am
by dalewannbe
comander, post some pictures of your rod - ya that don't sound good does it? the rod out of your dale.