Foamy oil indicates air in the system (and cavitation) Make sure the
hoses are in good shape, as Peter said, and nothing is drawing air,
before you muck about with the pump.
At 10:11 PM 2/5/2009, you wrote:
Have you replaced the any of the hoses? You need the fancy one from
the factory, plain hose causes noises.
Peter
On Feb 5, 2009, at 7:47 PM, Hendrik & Fay wrote:
The tandem pump in my 89 300TE makes a growling noisy and vibrates
at 1300rpm, fine at idle and above 1500rpm.
Got the missus to turn the steering wheel while I held the motor at
1300rpm but made no difference to the noise. Power steering is fine
and ride level control seems to be working OK, fluid is being
pumped as I can see it flowing back into the reservoir.
Is this noise an indication that the pump is heading south, are
there any other tests I can do?
I eliminated the AC compressor but it may be the water pump but
like I said the tandem pump is vibrating, whilst the water pump is
not.
Ahh well the good news is that it is not the motor or the gearbox
because when the fan belt is removed the noise is gone.
Unfortunately I can't run components individually, this is an
advantage of the multi belt set up.
Hendrik
with an attention seeking 300TE
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_______________________________________
http://www.okiebenz.com
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To Unsubscribe or change delivery options go to:
http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Loren Faeth
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