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Thanks for the link. Good info there.

Does the viscous-coupling LSD of the M59 need any maintenance or servicing? I'm just wondering if this thing will slip over time being a 16-year old component.

Also, I have a weird problem on my...

Just wanted to post an update as it has been a while. The boost leak test put on hold because the R clutch finally gave in after 225K original kms. Just put in a new R kit and the car's come alive...

Thanks. I will certainly share my experience here. This method seems much easier to set up as well as being thorough in testing the entire intake. Doesn't require a home-made boost leak tester - just...

Thanks to all for the continued help and advise.

I came across a rather clever idea to test the entire intake - cap the turbo inlet, disconnect the vac hose from the BCS/TCV that originates from...

No, you need to release the plastic snap locks attached to the hose connector. Have a look at the heater hose O-ring replacement kit which you will need when replacing the hoses. If you just pull off...

Make your own heater hose replacement. Follow this LINK

I followed the instruction on using a dremel with a cutting wheel to slit open the crimp and it works. If you are going to get used hoses...

Forgot to ask ... does this test include the intake manifold itself? If yes, how is this done cos I think air can escape in some places such as the hose going to the PCV/PTC connector on the plastic...

I have tested from post turbo to pre-IAC/throttle body and can hold 20psi without leaks. What would testing from the turbo inlet reveal?

Thanks, I will look into these. Are the check valves on the...

Hello, I'm new to this forum. I'm the proud and happy owner of 2 Volvo 850s, a 96 855T auto which I've owned since new and a 96 854R 5-speed which I acquired as possibly the 3rd or 4th owner 5 years...