Cam Gear Replacement, What bolts to use? Options

[Allan]

Got a replacement cam gear over the weekend thanks to Slits (IMG:style_emoticons/default/smilie_pokal.gif) Anyone recommend the right bolts to use when putting it on the cam? I don't know how much torque they are subjected to or if they need to be a certain size to clear all the stuff inside the case. Also, is anyone familiar with the Eljin (sp?) cams that GPR sells. They are saying they can get me a little more aggressive cam that will work perfectly without changing anything on the fuel injection. Thanks

[Demick]

The numbers indicate the size (radius) of the cam gear. There were different sizes to compensate for how the case was machined for the crankshaft position vs the camshaft position.

A -3 gear means that the radius of the cam gear is .03mm smaller than the nominal size (nominal size being a "0" gear). A +3 gear means the radius of the cam gear is .03mm larger than the nominal size. The cam gears were available in in the following sizes: -3, -2, -1, 0, +1, +2, +3

A larger cam gear will be a problem. But a smaller cam gear just means that there will be a little extra backlash between the gears. Apparantly this isn't a problem (although the appropriate size is still better in my opinion), but this is why they only make the smallest size now.

Of course, if you have your case align bored, then your original cam gear size is no longer important as the distance from cam to crank has been altered.

Demick