Review: RJM AFP Clutch Pedal System

DOOMMONKEY777

Now i have a question that needs to be answered,

The pedal that i have received is v2.0, now i have assembled it and just tried it out to see how it worked without putting on the car. It seems to me that the plates on the side of the assembly that can be adjusted for pedal distance have a little grease on them and are used to compress the pedal assembly together. I found that the compression of these plates also puts pressure on the brass/copper bushings and restricts the pedal to move ie. Coming back from pressed position, also it seems that if i release the bolts torque in order to let the pedal move freely ie. Clutch in, clutch out, puts less pressure on the plates with grease to hold the pedal adjustment in place. So will the pedal stay in its designated set position over a long period of time use, due to less torqued bolts where the pedal moves freely, cuz it seems to me it wont hold its point of set for too long?

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Ryan @ RJM

DoomMonkey, Yes this mechanism both locks the sliding track for adjusting the clutch rod angle and allows setting the exact side-tension required on the main bearings to reduce any side-side play in the pedal arm. Its worked flawlessly for 3 years now in multiple product designs without any issues of loosing height adjustment.
Now when you tightened these bolts did you follow the Install Guide Specific Procedure for Tightening these bolts or did you just crank them down tight without regard for the tension setting procedure? These bolts can absolutely lock the pedal arm bearings solid if you don't follow procedure which is what I suspect you where doing while bench testing.

The sliding track plates have so much surface area spread over 6 friction surfaces they act much like a quadruple plate clutch... where very little pressure plate force is required to generate a large holding capacity. Similarly the bracket needs very little bolt tension to result in a very large holding force on those plates, so much in fact these plates are already too stiff to move by hand by a 1/4 turn past where the lock washers are just compressed and then you still have several more turns before the bearings start to tighten up.

Finally once installed and set correctly the paint on the bearing surfaces will wear off and the bearings will break in after a day or two of driving to make them slightly looser yet after install.

So I have no worries that it'll function flawlessly once installed following the guide instructions.

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