ok fellas my little brothers 4g15 has been having some issue lately he's been having a horrible miss that would throw you around inside the car.
this week he did a water pump so me and the old man along with him complaining the whole time swapped out the motor. now this motor had been sitting a while but it's not the issue we had already though about salvaging the carby from this motor for another 4g15 powered vehicle we had. turns out we never used/needed it but in the time since being pulled off/left to sit that carb had seized the large cylindrical slider and as a result starved the motor of air and made the mixture supper rich. we found this and swapped it out with the carby from the motor we had just pulled out.
up until 3k rpm it will be fine just a touch over with constant throttle or load will cause a hunting much like that of a dud tps on the efi cars but in reverse you'll loose 4-500 rpm and return. under load this just present as a massive miss as if you had suddenly switched in to reverse for a split second. was wondering if anyone had any ideas on what could be the issue. all vac hoses have been triple checked and are all well sealed with no holes. the fuel pump works and seems fine. so by process of elimination it has to be something in the carb itself
this week he did a water pump so me and the old man along with him complaining the whole time swapped out the motor. now this motor had been sitting a while but it's not the issue we had already though about salvaging the carby from this motor for another 4g15 powered vehicle we had. turns out we never used/needed it but in the time since being pulled off/left to sit that carb had seized the large cylindrical slider and as a result starved the motor of air and made the mixture supper rich. we found this and swapped it out with the carby from the motor we had just pulled out.
up until 3k rpm it will be fine just a touch over with constant throttle or load will cause a hunting much like that of a dud tps on the efi cars but in reverse you'll loose 4-500 rpm and return. under load this just present as a massive miss as if you had suddenly switched in to reverse for a split second. was wondering if anyone had any ideas on what could be the issue. all vac hoses have been triple checked and are all well sealed with no holes. the fuel pump works and seems fine. so by process of elimination it has to be something in the carb itself