Rivera Variable Pressure Clutch - Hot Bike Baggers Magazine

(10.)The bolts were torqued to 30-32 lb-ft.
(11.)Adding some looks to the situation, a Primo cover (PP-400) was used. They don't come with the standard beltdrive kit, but are available through Primo, and add plenty of style to the mix.
(11.)Adding some looks to the situation, a Primo cover (PP-400) was used. They don't come
(12.)While the unit can be installed by one person, but having four hands really makes the job easier. With the unit on, the fit and alignment was eyeballed. Proper alignment is crucial, without it the primary belt will be forced to absorb more punishment than necessary. Not only will misalignment cause premature belt failure, it will diminish the system's ability to deliver proper power transfer between the engine and transmission, so checking to make sure that the unit is aligned is important.
(12.)While the unit can be installed by one person, but having four hands really makes the

(13.)With a few drops of Loctite on the threads, an impact gun was used to install the main nuts. They were torqued to 150-165 lb-ft.
(13.)With a few drops of Loctite on the threads, an impact gun was used to install the mai
(14.)With anti-seize applied to the threads of the studs, the pressure plate was installed. The shouldered nuts were tightened equally and in a rotating pattern, and then torqued to 30 lb-in. The tabs of the locking plates were bent over the nuts to keep them from coming loose.
(14.)With anti-seize applied to the threads of the studs, the pressure plate was installed
(15.)The belt guard was then installed. And with that, the job was done. The belt guard can be powdercoated to match the paint or it can be polished. Primo also has a wide variety of covers, so if flames or a more subtle design is your deal it has you, well, covered.
(15.)The belt guard was then installed. And with that, the job was done. The belt guard ca

Installing Primo Brute Iv Install Complete

(16.)Besides alignment, belt tension should be routinely checked. Tension is checked with the drivetrain cold with a steel ruler up against the belt. The total amwount of deflection should be between 1/2 to 1 inch.

(1.)The Rivera Primo-TPP Variable Pressure Clutch Assist was designed for use with the Rivera Primo Pro Clutch only. It is not designed for stock clutches.

(1.)The Rivera Primo-TPP Variable Pressure Clutch Assist was designed for use with the Riv

Pressing Business
Installing A Rivera Variable Pressure Clutch
Since he was installing a Primo belt kit, Syer also chose to upgrade the clutch action. He wanted a clutch pull which would be easy on the hand, but with increased pack pressure at higher RPM over stock. To that end, he installed a Rivera "Variable Pressure" pressure plate assembly to the Pro Clutch that comes with the Primo.

According to Rivera, its "Variable Pressure" pressure plate assembly can deliver up to 50 percent easier clutch lever effort, while still providing a 60 percent pressure increase in clutching power. The TPP Variable Pressure Clutch is for use with all Pro Clutch models, and fits under most OEM outer primary covers with stock derby covers with the exception of the '06 Dyna.

Installation is simple; pull off the stock pressure plate and bolt on the Rivera unit. The key is to tighten the hardware evenly, as the action of the clutch is at stake.

If nothing else, the slinger arm assembly is way better looking than the regular Primo unit, and works with the open belt design of the Brute IV on a visual level. Add to that the easier clutch pull and increased performance, and the Rivera TPP Variable Pressure Clutch is perfect for this ride.

(2.)We installed the Rivera TPP pressure plate, diaphragm spring (black), slinger-arm head assembly, lock clips, and special length shouldered nuts.
(2.)We installed the Rivera TPP pressure plate, diaphragm spring (black), slinger-arm head
(3.)We tightened the shouldered nuts equally until bottomed, and the diaphragm clutch spring was compressed to within 0.010-to 0.020-inch of being absolutely flat. Though these nuts were not really torqued to any specific number, a torque wrench was used to ensure that the hardware was at least evenly tightened. Again, time taken here to do the install right makee the clutch pull and operation smoother. With the nuts tight, the locking tabs were bent against the nuts.
(3.)We tightened the shouldered nuts equally until bottomed, and the diaphragm clutch spri
(4.)The unit was on and ready. It looked right at home on the hot rod Road Glide, but Syer will have to remember to keep his leg out of the way; it looks like a pants-grabber, for sure
(4.)The unit was on and ready. It looked right at home on the hot rod Road Glide, but Syer