The RCMAX clutch system
With the step up into Big Bore engines, we also need to increase the performance and durability of the
clutch system. After a massive amount of investment and research, we have now developed/refined
our own sintered steel clutch. The RCMAX V3 Clutch combined with our new RCMAX Clutch springs.
This clutch is now an extremely durable and reliable big bore clutch system, requiring no maintaince
or regular adjustment. Just fit and forget.
The fitment of the clutch is simple, once you have the spring fitted to the shoes, which fits like like all 1/5
scale clutches (line up and then snap together), you simply attach the clutch via the two mounting bolts.
It is important to note that the RCMAX V3 clutch is
designed for normal 8mm 1/5th scale clutch hardware
So simply fit the bolt into the shoe with the spring washer
between head of the bolt and shoe then fit the flat washer
behind the shoe and then bolt onto the clutch backplate
on the engine.
When fitting the clutch shoes, check that the
RCMAX brand name is facing outwards
there is also a directional arrow for double checking
Clutch Removal/Replacement
Tools are available on the market called "piston stoppers" which are screwed into the spark plug hole and
stop engine rotation by physically stopping the piston from moving in the cylinder.
WE DO NOT ADVISE
THE USE OF SUCH TOOLS
Instead simply insert some pull start cord in through the plug hole (with the piston past exhaust port closure
and then gently turn the engine to TDC to pinch the cord between piston and head to lock.
Included with the engine is a tool designed to make clutch backplate removal easy if required for servicing.
The picture shows how to hold the clutch back plate while the centre retaining bolt is loosened.
Then simply wind the bolts which are threaded into the clutch backplate evenly in, turning them a fraction of
a turn each in sequence so that they pull against the clutch tool and pop the backplate off the taper on the
crankshaft. This then allows inspection of the crankseal and further stripping of the engine.
Clutch back plate removal
M6 bolts screwed into crankcase
and clutch back plate (4 off)
Allen key inserted into back plate
retaining bolt
Clutch holding tool
