I have a 1989 Defender 110 with a 2.5TD motor and a LT77 gearbox. I am a new owner to this vehicle, so am not sure what repairs/maintenance was previously preformed.
The issue is:
When the gearbox is attempted to be put into 1st gear with the gearbox oil cold, there is a loud high-speed rattle from the gearbox. The clutch is depressed, the gearbox is attempted to be placed into 1st gear, and then the rattle begins. Quickly remove gearbox from 1st gear (if it is even in 1st, who knows), and disengage the clutch...rattle stops. Wait a few seconds, try to get into 1st again...no problems and no rattle. This rattle never happens when the vehicle has been operating for more than 10 minutes. Something to do with cold oil. The problem isn't specific to 1st gear; it also happens with reverse on start up.
I suspect that the problem is the wrong type of oil (or worn out oil) in the gearbox which is causing the sychromesh to not be properly lubricated on start-up. Does this make sense? Or is the problem likely something else?
The issue is:
When the gearbox is attempted to be put into 1st gear with the gearbox oil cold, there is a loud high-speed rattle from the gearbox. The clutch is depressed, the gearbox is attempted to be placed into 1st gear, and then the rattle begins. Quickly remove gearbox from 1st gear (if it is even in 1st, who knows), and disengage the clutch...rattle stops. Wait a few seconds, try to get into 1st again...no problems and no rattle. This rattle never happens when the vehicle has been operating for more than 10 minutes. Something to do with cold oil. The problem isn't specific to 1st gear; it also happens with reverse on start up.
I suspect that the problem is the wrong type of oil (or worn out oil) in the gearbox which is causing the sychromesh to not be properly lubricated on start-up. Does this make sense? Or is the problem likely something else?
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