Gear Problem / Decision

[ujiro]

No I'm capable of upgrading, I've done it before. I'll check my PDI spring to make sure its the proper one. And I will go with the SystemA torque-up gear set.

Now for another question: helical, or flat? If I go helical I suppose I'd have to change the piston to work properly. Any opinions?

[ILLusion]

Originally Posted by ujiro

Now for another question: helical, or flat? If I go helical I suppose I'd have to change the piston to work properly. Any opinions?

Flat if you want less gear whine, flat if you want to save a couple of dollars. Helical gears are much more sensitive to proper shimming.

And what makes you think you have to change the piston to "work properly"? That's 100% false.

[ThunderCactus]

the helical parts of the gears are between the bevel and spur, and the spur and sector, the part meshing with the pinion gear on the motor and sector gear meshing with the piston is still the same. The only time you'd need to change your piston is for unlimited torque gear sets which require you use a half tooth piston. Hope that clears it up for you

[ujiro]

Oh, that's odd. I thought I had read somewhere that there was some difference in the pistons while using a normal vs. helical set... Oh well, thanks though. I've ordered a flat type torque-up SystemA set off the WGC. Thanks for all your help guys, its very well appreciated.

[ILLusion]

Originally Posted by ujiro

Oh, that's odd. I thought I had read somewhere that there was some difference in the pistons while using a normal vs. helical set... Oh well, thanks though. I've ordered a flat type torque-up SystemA set off the WGC. Thanks for all your help guys, its very well appreciated.

Those posts are only half-truths. Only *certain* gear sets require the half-tooth pistons, and those gear sets just so happen to be helical. Those torque levels are only available in helical setups.
It's NOT to say that all helicals require the half-tooth piston, though.

It's kind of like... an apple is a fruit, but a fruit isn't necessarily an apple.

[ujiro]

Okay, that makes a lot of sense and clears it up for me. Dear lord you are ridiculously smart..