But wait! We don't want to put Versy out of business!  


Does anyone have access to a CNC that could cut a cover out of plexiglass? Sounds easier than trying to adapt a window to fit the stock cover. Besides, a window won't show much where a see-through cover probably would be easier to see what's going on. Perhaps even mount a camera pointing at the CCT while riding.

Look how much oil gets thrown around in this cutaway enfield engine. It's the gearbox but I guess it could be a similar story in the crankcase.
https://www.youtube.com/watch?v=2V_rP88YEP0

before you try this take off your oil fill cap and start your motor oil comes out even at idle,and there's a built in deflecter just behind it and the oil filter houseing.It's true that the piston moving down tends to pressurize  the bottom end but you would have to light it to see and that's another problem.

That is a very good point Norm. Chain oscillation could allow the adjuster to advance and either negate the purpose of the additional spring or even impose extra loading on the chain if the pawl pops out more than one tooth. The additional spring should be very strong to resist unwanted movement of the chain. Too strong won't hurt but too weak certainly will. Who is willing to risk a motor? Then again Batman is doing fine with just the plunger spring unchained so maybe we are trying to over think this?

Ive thought about it. At first, I saw it as valid, but, as long as the new spring is stiffer than the old one, this is not happening..
I don't see how it could be worse than what is going on now even if the new spring, at the mount ,was weak.
The chain isn't in there being subjected to bicycle chain direction changes, the crank Always spins over dragging the cam, tension is always on the front, and, the tensioner can't Grab more than the chain will give.
Shutdown wheeze, or, startup cough and sputter, the chain can't get tighter than now. Once it got through the change, back to business, the spring in the end is a decent idea. Unless it's not needed, because of what Batman is doing.Let's see how that works out.

What if he starts a movement against tensioner springs?

LOGIC! (or how to k.i.s.s. your pawl spring goodby)      First let's look at a few statements made in  reply to this subject. verslagen said the main plunger spring holds the tension,I agree! let's say the teeth on the pawl are almost ready to grab the next tooth on the plunger what is holding the tension on the chain? The main spring!He also said that he figured the expansion  of the motor would cause the cam plunger to recede .061inches or 1.548mm.Again I agree!...So let' proceed ,after removing the clutch cover ,measure from the body of the tensioner to the center of bolt on the rear guide.Let's assume it to be 16mm.Now we remove the tensioner and then the dreaded pawl spring.Next we place it in a vice between two blocks of wood one with a slot wide and deep enough to except the tab on the base of the body.We then s l o w l y and g e n t l y compress it until it goes hard.we need to measure how far the round base of the plunger is still sticking out,let's say 4mm. while it's here in the vice grab a hacksaw blade an using the base as a guide make a shallow mark on the plunger as a reference . Now it's time to weld on your plunger extension, then drill the hole for the guide bolt 14mm from your reference mark. 16-2=14  2mm being the amount of play you've allowed for plunger to move as the motor warms . that means the tensioner goes hard after moving 2mm and then holds  stronger than the pawl ever could!  Now ride the hide off your bike for 5000mi then look, the mark you put on the plunger was out 2mm to start,IF it's another 2mm(I don't think it will be that much)place flat washers or whatever in the base of the body 2mm thick replace the spring and plunger,which restores your free movement back to 2mm ,if the wear remains constant your chain life should be 45000mi(that's assuming you had 15000 on it at the time of this mod) when you again reach 16mm extension.If your wear is 1mm your on your way to 75000mi . At this point I would be more worried about the wear on your guides than the chain and be looking hard at them at each 5000mi check.

Very nice Versy! It should work like a charm. No more bow tight cam chains.

verslagen1 wrote on 06/13/16 at 09:29:16:


What are the specs for your new little spring Versy? Does it bear directly on the mounting pin or do you have a slug of metal in there as well? Looks like thus could be the answer.