I have a 1991 Mercedes Benz W124 200E, with factory fitted 5 speed manual transmission.
When I bought the car approx 4 years ago, the transmission suffered from a fault. Changing gears from 1st to 2nd gear caused a horrible crunch. Worn synchro, you say. But, the gearbox would not crunch when changing down from 3rd to 2nd. I ended up replacing the gearbox with a good used one but the problem remains. By changing gears slowly, with a pause between 1st and 2nd, the 2nd gear will go in without a crunch.
The gear lever and gearbox are linked with three selector rods, similar to this arrangement (found in older Mercs):
Each rod serves two gears. Each rod can be extended or shortened. If a rod is the wrong length, it becomes difficult / impossible to select a gear.
Is it possible that the rod that relates to 1st and 2nd gears is the wrong length and consequently it doesn't operate the shift mechanism inside the gearbox properly, causing the crunch?
It is unlikely that two gearboxes would suffer exactly the same fault.
Any ideas please?
When I bought the car approx 4 years ago, the transmission suffered from a fault. Changing gears from 1st to 2nd gear caused a horrible crunch. Worn synchro, you say. But, the gearbox would not crunch when changing down from 3rd to 2nd. I ended up replacing the gearbox with a good used one but the problem remains. By changing gears slowly, with a pause between 1st and 2nd, the 2nd gear will go in without a crunch.
The gear lever and gearbox are linked with three selector rods, similar to this arrangement (found in older Mercs):
Each rod serves two gears. Each rod can be extended or shortened. If a rod is the wrong length, it becomes difficult / impossible to select a gear.
Is it possible that the rod that relates to 1st and 2nd gears is the wrong length and consequently it doesn't operate the shift mechanism inside the gearbox properly, causing the crunch?
It is unlikely that two gearboxes would suffer exactly the same fault.
Any ideas please?
