Peter F

My AC is cooling nicely and the rest of the HVAC system seems to work.
When reving the engine with no AC switched on it is quite smooth.
If I swith on the AC and slowly increase the revs to 3000 there is a very noticable vibration of the entire engine.
Is this normaL or is the compressor on it's way to lock up?
I saw somebody write about a bearing that can be replaced at the front of the compressor.
If this one is getting bad could it be causing the symphtom?

/Peter

ZEUS+

Check to make sure all mounting bolts are tightened properly and proper belt tension. . I have run across this several times causing vibrations.

NickT

It's also easy to miss the 17mm bolt behind the compressor, without that one tight it will shake for sure.

Randy V

If it's not loose bolts it may be a broken mounting point.

Peter F

Thanks guys,

I hope you are right with your suggestions .
Will check tonight and see if anything is loose.
Sure hope the compressor is not acting up on me

/Peter

Peter F

So the problem have now been fixed.
It turned out to bee the 17 MM bolt on the rear of the compressor.
(Nick you where spot on)
The bolt at first seemed tight but when grabbing the compressor and trying to move it I could see the washer moving.
Tried to tigten the bolt but it would not bite, luckily enogh it was possible to remove.
Ran a M10 tap with fine thread 1,25mm pitch trough the hole and bought a 50mm bolt(took some searching to find with fine thread).
It is now bolted in and got real tight, no vibration anymore

Thanks again for great advice

/Peter