Help! 1st Truck
I have a Mammoth and it used to change into second gear but is not now. It's only running in 1st. Has anyone esle had this problem? Any Help? I slowed the truck way down to make sure, and looked in the book to how to adjust it but I can't find it on the truck! What makes me wonder is it was changing perfect before, nothing was touched, and now it doesn't change.
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RE: Help! 1st Truck
i had a few freinds with traxxas happens to them alot.he told me he would just let it sit for a while and it work. it might be a engine problem maybe your trucks not getting enough rpms to shift.
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RE: Help! 1st Truck
You need to loosen the spring tension on the shift finger. To achieve this, you need to loosen the setscrew with a wrench. Turn it a little at a time until desired shifting is obtained.
If YOU install a 2-speed onto the truck it was not designed for, then chances of 9-10 it may not shift. This is due to the fact of different gearing combinations being used for different cars. One example of this would be installing a 2-speed designed for a rally car onto a MT. In most cases, it will not shift. |
RE: Help! 1st Truck
Anyone agree with my post?
I am almost certain that is the problem, but then again is it possable to be 100% correct? |
RE: Help! 1st Truck
ive never installed and 2 speed in a single speed truck but i would think that it would just be a matter of getting the gearing correct.
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RE: Help! 1st Truck
Sweetshoes, you may be right, but I think the Mammoth comes with a 2-speed tranny.
Excel24, you need a small allen wrench. The set screw should be right on the metal rim of the smaller of the two tranny gears. Once you have it adjusted right, place a drop of threadlock on it to hold it in place. There is a picture of it in the feb. rcca. |
RE: Help! 1st Truck
I've installed a 2-Speed truck tranny into my Super Nitro Rally. Shifts fine, but the gear ratio is all wrong, too low. Waiting on the adjustable engine mounts now, then will re-gear and see how it goes.
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RE: Help! 1st Truck
It could be as simple as a tuning problem. You engine tune will change day to day depending on the temp and humidity.
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RE: Help! 1st Truck
Absolutely, if your engine is running too rich (or even too lean for that matter), it may not be building up enough rpms for 2nd gear to engage.
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RE: Help! 1st Truck
jefx agrees with me,yeah!!!!:D
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