Montjuic balance weight position

Ade

Ade

New member
Location
Barnsley
When refitting the clutch cover the balance weight naturally falls to the bottom.
Does the engine/crank need to be in a specific position when refitting?
 

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Hi, the first thing to say is throw it in the bin, it’s not needed and I removed it from my bike. My bike was a racer though but even so.
Here is a photo of the relevant page in the workshop manual. My copy is an early one so it was prior to the 500 having the balance shaft fitted, but it was on the 350 which is the same..
On the ILOC web site you can down load the manual, but you might have to join first.IMG_2237.jpeg
 
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Robin Webster said:
Hi, the first thing to say is throw it in the bin, it’s not needed and I removed it from my bike. My bike was a racer though but even so.
Here is a photo of the relevant page in the workshop manual. My copy is an early one so it was prior to the 500 having the balance shaft fitted, but it was on the 350 which is the same..
On the ILOC web site you can down load the manual, but you might have to join first.View attachment 95982
Click to expand...
Many thank Robin, my assumption was that it needs to be relevant to the crank position. This is a great help!
Cheers,
Ade
 
Reading the manual section Robin provided, it suggests the shaft and gear is fitted to the crankcase. (As this would enable alignment).
Mine came out with the outer bearing, shaft and gear secure in the clutch cover?
 
Ade said:
Reading the manual section Robin provided, it suggests the shaft and gear is fitted to the crankcase. (As this would enable alignment).
Mine came out with the outer bearing, shaft and gear secure in the clutch cover?
Click to expand...
Persuade it a little! Bit of heat? Hot air gun?
Much easier if bearing in cover and weight timed correctly in casing.
 
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I’ve got one of those in a box too. Mike Waugh persuaded me to take it out my Monty, it made little difference as I recall (30+ years ago tho)🙂
 
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I was at a race track using my Monty circa 1979? and I heard an engine speed screeming noise, so pulled in to the paddock, when the bike had cooled a bit, I looked around and decided to take the cover off, the balance shaft fell on the floor, so I had no idea of its correct orinetation, the screaming as from the bearings which were "sealed for life " type, why? what was itidyliti thinking, anyway I refitted the cover and went racing the following day (same circuit) I did notice that the tickover was a bit eratic but it revved up quicker (ever so slightly) I never replaced it and it went with the bike when I sold it to Mr Todd.
CLEM
 
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