new cell, batts arnt as punchy

Hey i recently bought integy 3600 7 cells and man they were beast on there first couple of charges. I was flipping in 2nd gear. But after a jump one pack flew out and scraped up a cell so i had to replace it. Once i replaced that cell it seems that the batts arnt producing the same torque as before. Is there something i did that altered this? Also my motors shifted on the mount and i am unaware of how tight the meshing should be? SHould i put them as close together on the spur gear as i can, or is a loose fit better? thanks.

[sleebus.jones]

I'm betting the problem is more likely with the gear mesh, rather than anything else. If the pack holds the same amount of mAh on charge, it's fine. Use the paper strip method as described here:

How to Set Proper Mesh
So here it goes, there are a number of ways to set a good gear mesh. Car and truck drivers may have heard of the "paper method," in which a piece of notebook, printer, or even cigarette paper is cut into a small strip and placed between the two gears being pushed together. With the paper strip pressed tightly between the two gears, tighten the adjusting screws down and remove the paper. The paper should be pressed into a zigzag shape from the teeth, but not be cut through. If the paper is cut through, the mesh may be too tight. This method works for many applications and has been proven as a tried and true system. But it is important to check the gears regardless of the method used. To check gear mesh, hold the smaller gear of the two and move the other gear back and forth. A small amount of movement--very small--should be present. This movement is called backlash, the movement of the teeth of one gear inside the gaps of the other. This movement should, in most cases, be very small and just perceptible; anything more will be too loose. If no movement is present, the gears are too tight. This is where "feel" comes in. With time and practice, a pilot will know what the proper amount of backlash feels like. It is very helpful to have an experienced pilot set it the first time so that you can get a "feel" for it by moving the gears. Using the paper method will get very good results until this "feel" can be obtained.

(Above info taken from rchelimag.com)

Sleebus

hey neverheard of that paper method, thanks man

[BrianG]

Yeah, the Revo manual uses the paper method in its directions as well.

As to the weak pack, are you sure you soldered it correctly and the right way? If you hooked the new cell up backwards, you will get less voltage.