piranha-bro2
Hero member
- Location
- Melbourne
Comment wasn't directed at you in any way, Clem! I was questioning the need for an inspection cover in general. I have to agree that it's a solution to a problem that barely exists, if at all.
Techy Stuff and Why
- Thread starter julian
- Start date
Arnstein
New member
- Location
- Kristiansund, Norway
My inspection plug is only for ease of maintenance to get the "tension" "right" ( or correct as the workshop manual says ) without any guesswork.
The reason Laverda never produced one was maybe cost, same as with oil filters and maybe a few other modifications that a lot do to these bikes ( even though they worked without in 50 yrs ).
And, I know some hamfisted / bad hearing owners that rarely could get any tension correct depending only on hearing and feel through a screwdriver.
The reason Laverda never produced one was maybe cost, same as with oil filters and maybe a few other modifications that a lot do to these bikes ( even though they worked without in 50 yrs ).
And, I know some hamfisted / bad hearing owners that rarely could get any tension correct depending only on hearing and feel through a screwdriver.
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CLEMTOG
Hero member
I wish I could find a picture of the as found pri cover, it was truly a horrible amateur mess, I mean why start such a job when he must have known that he is not capable and the cover a valuable item, I suppose I could shave off the 1000 logo as well (which is what the factory did on early 1200's) and that would make me more likly to use it.
CLEM
CLEM
Clem,
These covers were cheap as chips back then. I remember buying a new one because the old one was a bit dull and scratched, I think the bike had toppled from the stand on a soft surface. Old one went into the skip, without a second thought! Yes, I'm still kicking myself for that...
With parts being as cheap as they were is possibly a reason why these bikes lead such hard and abused lives. Chuck it down the road, the handful of parts required didn't stop you from the next night in town. Might have taken better care if it had cost an arm and a leg to keep alive!
piet
If you ever have seen a chain revolving at high speed you would be amazed,
Just look at what happens when your final drive chain is loose, the Primary is going at least twice as fast.
The crank is not rotating at constant speed by any means at all, in fact the pulsating is quite heavy on a 360 twin or 180 triple. and even substantial on a 120 triple. I have seen it with a strobe and that is why my racer is now having a gear drive.
I personally see no reason not to pay attention to a correctly tensioned chain and a good idea to make sure the chain is in good condition.
If you think about it you are only tensioning the side that is under load on the over run and off and on but lower loads due to crank acceleration variations. The top loaded side "is what it is" (other than the play between the chain and sprocket teeth) and as it stretches it gets slacker and the only thing that can be done there would b to change the centres. (which you can't)
Slack chains do snap due to snatch, wear faster for the same reason and fuck the sprockets.
What reason can there be to NOT look after your chain tension.
Jules
Just look at what happens when your final drive chain is loose, the Primary is going at least twice as fast.
The crank is not rotating at constant speed by any means at all, in fact the pulsating is quite heavy on a 360 twin or 180 triple. and even substantial on a 120 triple. I have seen it with a strobe and that is why my racer is now having a gear drive.
I personally see no reason not to pay attention to a correctly tensioned chain and a good idea to make sure the chain is in good condition.
If you think about it you are only tensioning the side that is under load on the over run and off and on but lower loads due to crank acceleration variations. The top loaded side "is what it is" (other than the play between the chain and sprocket teeth) and as it stretches it gets slacker and the only thing that can be done there would b to change the centres. (which you can't)
Slack chains do snap due to snatch, wear faster for the same reason and fuck the sprockets.
What reason can there be to NOT look after your chain tension.
Jules
Arnstein
New member
- Location
- Kristiansund, Norway
Pictures of your primary gear drive?
Have a look here,
laverdaforum.com
Some pics of it around p25
Jules
Building a race bike
Hi folkes, Thinking again now about finishing my SF project but having a little rethink. Now the BSA is all done, I don't really love it like I do the others, It's too much of a "doesn't fit anywhere bike" too much of a modern take on an old bike I think. I don't want the same feeling with...
laverdaforum.com
Some pics of it around p25
Jules
Arnstein
New member
- Location
- Kristiansund, Norway
Have a look here,
Building a race bike
Hi folkes, Thinking again now about finishing my SF project but having a little rethink. Now the BSA is all done, I don't really love it like I do the others, It's too much of a "doesn't fit anywhere bike" too much of a modern take on an old bike I think. I don't want the same feeling with...
Some pics of it around p25
Jules
VERY nice work! Some serious welding & machining there.
Pick of primary chain grinding marks on crankcase edge, slack chain trying to climb the front sprocket on downshift engine braking. Not a Laverda as can be seen, but same chain and and type of tensioner.
