|Posted: Sep 30 2008 at 6:01am | IP Logged
kcidmil & frontierguy thanks for the responses
I spoke with another dealer, they advised that i try taking out take out the last section of the propshaft (effectively putting the vehicle into permanent 2 WD) and take it for a test run, to determine if the fault is indeed the main propshaft bearing or not.
This kind of makes sense to help isolate the issue.
Whilst I understand what you have both said about the main bearing. The bearing outer looks pretty much intact and there is very little play in either the front or rear section of the prop. (1/2 inch rotation in the rear end after the main support bracket and 1/4 inch play in the front section from the gearbox to the main bearing) So I can't see it as a bearing issue.
The Vehicle is a 2004 D22 Navara, and until this I have had little problem with it..
The garage advised that the strap which i think is linked to the problem is only to protect the floorpan in the case of the main bearing failure... this means if the front propshaft section seperates and drops the bracket will prevent it from coming through the floor and causing injury to the occupants of the vehicle.. (I personally don't think this is the true function of the strap).
To me this strap puts a slight tension into the main bearing assembly and would be enough to dampen a vibration such as the one I am having...
The garage engineers also contradicted themselves when asked what was going on because 2 guys said there is no rubber bung present, then a third engineer came through into the office and said oh has the rubber bung fallen out!
I am not trying to catch anyone out here, but it seems like there is a fault that could be known about by dealers and the fix is quite simple, yet all the dealer wants me to do is drop the vehicle in with them to be fixed! Tell me he is going to install a complete new bearing housing and simply re-fit a rubber bung and mounting strap... Something doesn't seem right here...
Does anyone else agree?
If it was a bearing issue then the vibration should be present through all gears right? and not just at certain speeds? I would feel excessive freedom of rotation in the shafts themselves! but I dont... The car is still driving fine but the vibration is still there, no worse than when it first started... Its gotta be something really simple I am sure of it... Other ideas anyone?