[postercom]

I have raised 1 front wheel and could not rotate it. Gearbox was in neutral. Is it Viscous coupling unit, that doesn't work? :?::?:

 

[Gilbertd]

How did you try turning the wheel? It will not just spin normally, you need to put a socket and big bar on the centre nut and then stand on the end of it. The wheel should turn very slowly with quite a lot of resistance.

What makes you think you have a problem?

 

[postercom]

Service repair no - 47.15.02
It say's: NOTE: Raise 1 front road wheel and rotate
propeller shaft as necessary to gain
access to all fixings.

I thought, that the wheel will spin with a little resistance.

The main problem is, that I have small vibration on speed higher than 90 km/h. All wheels are ballanced correctly.
Where do I look?

 

[rousecapri]

propshaft uj's

 

[marty_nz]

Here is a link to a youtube video made by a P38 owner awhile ago on how to test the VC on a P38:

https://www.youtube.com/watch?v=XddClDAIfXw

As rousecapri says, vibration is more likely to be a UJ on it's way out - or maybe even the bearing on the VC. I've just noticed that the output from the VC on mine has a bit of play on it (new front prop too) and that there is a tiny amount of play in the VC bearing... needless to say that is pretty high on the list of things to be swapped out when I'm next home!

 

[Gilbertd]

So you can rotate the proshaft to remove it, jack one front and one rear wheel off the ground and it will turn easily. Much easier than trying to turn the wheel against the viscous coupling.

 

[postercom]

Thank you for good advice :dance:

 

[Ferryman50]

And don't forget to loosen the handbrake. (i.e. transmissionbrake)