Hello, can anyone help me with some suggestions as to what this may be:
Our Nissan Civillian copped a bit uf water under it in the recent NSW Floods..not sure if this has been the cause. When starting the bus it lurched forward and stalled,the gears would not go in with the motor running. 2 days later tried again, lurched and stalled we re started and this time the gears aregoingin. Have been driving it up and down going through gears, they are going in but it feels a bit unsure?
Have checked the clutch fluid all ok. The gears seem slightly stiff to get in but are engaging? any ideas?
At a guess I would suspect that what has happened is by having water in the clutch bell housing the areas between the clutch plate and pressure plate and flywheel which is therefore causing a suction effect similar to rubber against glass this effect would then be similar to having no clutch disengagement therefore unable to put into gear with engine running and would cause it to lurch forward upon start up. However once vehicle is drivable although difficult to engage gears the residual water in the clutch housing would tend to vaporise with heat when running but would tend to condense when vehicle stationary and cooling down. I would suggest a LONG Drive to disburse heat and if the bell housing has a lower inspection or access cover remove that to aid in dispersal of moisture. While under vehicle take the opportunity to check trans oil for traces of water.
I hope this sheds light on your problem, Cheers Allen
Bleed the clutch . After sitting overnight . Drop the drain plug on trans and drain a few cups of oil out . If there's water in there . It'll be the first out . Chances are there's moisture on clutch plate . Try a slow take off riding your clutch a few seconds to get some heat into it .
Thankyou so much everybody, We will do everything youall suggested, things are a bit soggy and rainy here and garages are banked up with people in much much worse condition. I really appreciate you help will do. HOPE to be on the road soon heading to sunshine!!!!!!!
I reckon if you have been in water then the clutch could be very wet and the gearbox possibly has water in it. The Diff may have water in it too.
I would be getting all those oils changed and the clutch plate checked out.
hope that helps
Frank
Hi
Good advice here from Frank, for sure. If the water was up over the diff and transmission and even the engine, then before driving it you must drain them and check if there is water in them, to avoid damage. As said you can just drain the first bit as a check, as the water goes to the bottom and the oil floats on it.
If there is any water found then a complete oil change is wise. The diff is the lowest item, do not forget that. Also as already said the clutch fluid too and I would also flush out the brake fluid and change it to avoid long term problems.
The shiny surfaces of the clutch pressure plate and the flywheel can rust to the clutch plate quickly and prevent it from disengaging but usually break free and clean themselves if it was only a day or two till you use it again. If the problem continues there may be some mud in the bell housing and a hose out may help if it possible to do through a hole or plate. The housing always has a drain hole of some sort in the bottom so check it is not blocked by dirt/grease.
Good luck, and as you say others have many more problems
