Z900A4 Snapped chain - Casing damage
Posted: Thu Apr 23, 2020 4:44 pm
Sooo - just after finishing my restoration (the chain looked new as do the sprockets!) on a little ride out for my, er "essential groceries" - I have a snapped chain. as you might expect, there's damage to the inner casing around the front sprocket.
The top section of this casting has been ripped off, and also a portion of the upper back section, which exposes a few holes that look like they're channels for securing bolts.
I was considering not bothering to replace this casing, however, one of the holes to the upper left (which I assumed to be a bolt recess, but there's no thread inside it, and none of the outer casing bolts align with it - so it's like a clutch pushrod hole, without the pushrod!)
Ordinarily, I wouldn't worry about this, but on running the engine, oil pisses out of this hole. So, a partial success, then.
So - does anyone know
a) What this 5mm hole is
b) Whether I can just seal it off (I cannot see what function it performs - seems just an empty channel.)
c) If it's possible to get a replacement inner casing - the one that goes behind the front sprocket. In my Kawasaki manual, it's referred to as an "External shift mechanism cover"
I assume these covers are like rocking horse shit, due to machine age, and 40 odd years of snapped chain damage to the original stock.
All suggestions welcome - thank you guys.
Nick
The top section of this casting has been ripped off, and also a portion of the upper back section, which exposes a few holes that look like they're channels for securing bolts.
I was considering not bothering to replace this casing, however, one of the holes to the upper left (which I assumed to be a bolt recess, but there's no thread inside it, and none of the outer casing bolts align with it - so it's like a clutch pushrod hole, without the pushrod!)
Ordinarily, I wouldn't worry about this, but on running the engine, oil pisses out of this hole. So, a partial success, then.
So - does anyone know
a) What this 5mm hole is
b) Whether I can just seal it off (I cannot see what function it performs - seems just an empty channel.)
c) If it's possible to get a replacement inner casing - the one that goes behind the front sprocket. In my Kawasaki manual, it's referred to as an "External shift mechanism cover"
I assume these covers are like rocking horse shit, due to machine age, and 40 odd years of snapped chain damage to the original stock.
All suggestions welcome - thank you guys.
Nick
You would think but no! Everyone, calls them mission cases.