wr 450 crank question?
Posted August 20, 2007 - 04:27 PM
Hi, does anyone know if i can replace just the cam chain sprocket on the crank shaft?
My dealer said i would need to buy half a crank and get it pressed on to my half.
Has anyone had to do this?
Posted August 20, 2007 - 11:47 PM
Posted August 21, 2007 - 03:10 AM
This engine is a good advert for regular maintenance, i bought the bike cheap in a pretty bad state knowing it needed a bit of work, it had quite a few trick bits on it and the guy had powder coated the frame so i thought this would offset the cost of the rebuild.
When i opened up the engine i was shocked, it looked like the cam chain had been slipping and the piston had been left way past its service limit.
two cams mashed
crank sprocket mashed
barrel worn through coating
head journals dont look good
Hundreds of pounds of damage caused by a £20 cam chain and £100 piston
I plan to rebuild it slowly over the winter with a big bore, hot cams etc etc so ive got monster spare engine.
Posted August 21, 2007 - 05:45 AM