Bought an '87 Maxima in 1998. In 99, it wouldn't shift out of first gear while driving, just would rev extremely high. Nissan put in a new transmission and it ran fine until April 2003.
Once again, the problem has reoccurred now. The tranny is stuck in first gear and will not shift out. Revs very high. Checked the transmission fluid, its fine.
Considering the knowledge in this forum, I come to you guys first, any help is GREATLY appreciated! What could be the problem? Has anyone else experienced anything like this with their 86-88 maxima?
NOTE: I take care of all fluids and maintainence regularily. The car had been running fine, until the incident.
Small gear motor is a kind of power transmission-mechanism, utilizing gear speed converter to get the wanted rotation speed by reducing the rotary spe ed of a motor, and receive a large torque. Small gear motor is also known a s micro gear motor with a function of speed reduction and torque augment. T herefore, small gear motor is widely used in speed and torque conversion eq uipment. Small reduction motor is composed of various levels of gear, such as the us e of small gear to achieve a certain degree of reduction of the gear, and t hen the use of multi-level structure can greatly reduce the speed, so in ge neral, the working principle of small motor is the use of the gear drive to achieve the purpose of reducing speed. Generally used in low speed and hig h torque transmission equipment, the electric motor, internal combustion en gine or other high-speed operation of the input shaft through the gear redu cer to connect the number of teeth on the output shaft of the gear to achie ve the purpose of reducing the average speed of the motor, Ordinary speed reduction motor also use the same principle with several pairs of gear to a chieve the desired effect .
The transmission of small motor is a kind of high precision transmission, a nd the transmission efficiency is high. Although there are many ways to ach ieve the reduction, but the most commonly used method at present is use gea r to slow down the speed. This is because gear can reduce occupancy and cos t. So people also name gear motor as micro gear box. A gear box is usually a combination of some gear boxes. Because the gear box itself is not powere d, so need drive components to drive it. And the biggest purpose by using t he reduction motor to drive is to achieve power transmission and get a cert ain speed as well as a large torque. So at present the reduction motor is w idely used in various industries. According to a survey data shows that damage of gear motor components is ab out 80% due to friction and abrasion caused by. Friction can be reduced by a reasonable choice of good friction pair and using reasonable lubrication. Lubrication is the use of a material grinding to separate the relative mov ement of the surface. This material is of low friction resistance with a sm all abrasion. Lubricating oil in the gear transmission just play a role to reduce the friction resistance and abrasion, in order to extend the service life of mechanical components.
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