STORM PRO

This is the building process of a GS-Racing STORM PRO with all pro's and con's found.

!Click on the pictures to enlarge!

STEP 3

	For STEP 3 take these parts twice. We gonna build two gear boxes at once. Notice that the central drive shaft are there in a short and a long version, we need both!.
	Fit an 8x16 m/m bearing inside each gear box.
	Press the bearing flush with the outside of the gear box.
	Do the same at the inside of the gear box. Take care this one is also flush.
	The pignon and crown gear are cut spiral or helicoilidal to be precise. The gives smoother performance and less wear. Nice feature!
	Place the pignon inside the gear box and make it flush with the bearing.
	The flat spot of the pignon should be far enough through the two bearings and look like this.
	All drive shafts in this kit are so called CVD's invented for modelcars by MIP and stands for "CONSTANT VELOCITY DRIVES". These drive shafts give smooth transition of the power in all angles.
	The 5x5 m/m set screw we need in the next step is already factory fitted with a small layer of thread lock.
	Place the 5x5 m/m set screw in the driveshaft
	There is no explanation how to maintenance these units. They come fully assembled. I found out that the set screw that fixes the small 2 m/m cross pin is not 100% OK secured. Take it out and put some thread lock all around the 3x3 m/m set screw. The factory fitted thread lock is only at one side and  this causes the set screw to lose up after a while. This goes for all CVD's in the kit! For more info about maintenance CVD units go to www.miponline.com
	According the manual we have to mount the center drive shafts in step 21 but these parts are also in bag step 1-3 and can be placed at this moment with more convenience. Press the pignon from the inside and place the drive shaft and secure it with the 5x5 m/m set screw. This way we are sure that there is no play when we slide the drive shaft on the pignon. When we do it like the suggested step 21 we can not do this as the gearboxes are already mounted on the chassis and we can not reach the pignon from the inside. This way we have all the room we need. Take care that the marked front dif is used with the short center drive shaft in the next steps. The long center drive shaft is for the rear gear box assembling!
	Put 4 13x16 m/m shim washers over the dif output on the side where the crown gear is mounted.
	Slide the dif in the gearbox as the pictures shows. Use for front and rear gear box the same side Like the picture shows! Take care that the thin shim washer are also on its correct position (they bend easily)! They should be placed on the outside of the bearing. Feel when the dif is at its place if the there is enough play between pignon and crown gear. If there is to much (the gears click) add an other thin 13x16 m/m shim. When the gear are binding and not move freely but with crunching remove one 13x16 m/m shim until the right play is achieved.
	Fit the four 3.5x25 m/m self tapping round head screws. Try after this again to rotate the drive shaft and feel if it all rotates freely. If it does not, check again the meshing of the pignon and gear by adding or removing an 13x16 m/m shim washer.
	The front and rear gear box ready for use! Watch that the length of both center drive shafts are correct and not the same length and that the front dif (gear box) is using the short drive shaft! Apply some grease on the pignon and crown gear surface. Molybdeen Sulfide (see tip 6) grease will do the job. The grease is not in the kit.

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