1 Output Shaft, Rivets & Anti-backlash Mechanism ... Again Fri Jun 29, 2018 11:49 am
Kafflut
Silver member
The rattle is only at low revs. It seems to come from the rear, not the timing chain end. When I pull the clutch lever it is less noisy, but still there. At higher revs, I'd say anything over about 1700, it goes away.
A very useful article : http://www.ibmwr.org/ktech/output-shaft-noise.shtml
Number 6 under the heading "Begin" reads: "Insert a bar or screw driver shaft into the water pump end of the output shaft. It should slide far enough into the shaft to ensure it will not slip out when engine weight is applied to it. Using crate straps, or similar strap (I used a cargo strap) loop one end around the output shaft, and secure it to the frame. Loop another cable around the protruding bar (or screwdriver) end on the front of the output shaft and secure it to the frame. The absorber gear and idle gear are under tension and we do NOT want the tension to force the output shaft out on us when the lower engine case is removed! The rear crate strap is going to support the weight of the engine, when you remove the transmission jack… make SURE it is tight and secure!"
I don't quite follow this. A photo would help a lot. I expect I'll have a clearer understanding when I get there.
Q1. Would it be possible to check the condition of the rivets without removing the output shaft? ie Could I check for wear before removing the "transmission jack"?
A very useful article : http://www.ibmwr.org/ktech/output-shaft-noise.shtml
Number 6 under the heading "Begin" reads: "Insert a bar or screw driver shaft into the water pump end of the output shaft. It should slide far enough into the shaft to ensure it will not slip out when engine weight is applied to it. Using crate straps, or similar strap (I used a cargo strap) loop one end around the output shaft, and secure it to the frame. Loop another cable around the protruding bar (or screwdriver) end on the front of the output shaft and secure it to the frame. The absorber gear and idle gear are under tension and we do NOT want the tension to force the output shaft out on us when the lower engine case is removed! The rear crate strap is going to support the weight of the engine, when you remove the transmission jack… make SURE it is tight and secure!"
I don't quite follow this. A photo would help a lot. I expect I'll have a clearer understanding when I get there.
Q1. Would it be possible to check the condition of the rivets without removing the output shaft? ie Could I check for wear before removing the "transmission jack"?