MB Ur-questions

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <199805302057.XAA10477@vtoy.fi> "Jouko Haapanen" writes:

>> There are three hoses connected to the wastegate frequency valve.  The
>> one to the wastegate itself _is_ only 100mm long - it goes from the
>> upper outside port.  The upper centre port is connected to the turbo
>> inlet, and the lower port is connected to unthrottled boost in early
>> MB engines, and throttled boost in later ones.

> The port on the top, not in the middle, but opposite the electrical
> connections, is connected to the turbo inlet on my car.  The centre top
> port is not connected to anything.  I think something's funny here...

That's the "switched" port.  So the WGFV is either connecting the turbo
inlet to atmosphere, or to turbo outlet.  Not a lot of good in either
case.

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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