[urq] Overboost Problem

[djdawson2 at aol.com]

 You can at least eliminate your wastegate and/or spring from the equation by unhooking everything from the WG and just let it operate on spring pressure.  The spring alone should not allow the engine to produce high boost.

If you have everything unhooked from the WG and you still get high boost, you either have too much spring, or the WG is frozen shut.

If you have everything unhooked from the WG and boost is reasonable, then you have an issue with the plumbing to the WG, or the WGFV operation.

Dave

 


 

 

-----Original Message-----
From: Ingo Rautenberg <ingo.rautenberg at gmail.com>
To: Louis-Alain Richard <louis-alain.richard at sympatico.ca>
Cc: URQ <urq at audifans.com>; Ken LiPani <mentosman42 at gmail.com>
Sent: Thu, Oct 7, 2010 5:53 pm
Subject: Re: [urq] Overboost Problem


Aha! I don't think either of mine ('83 and '84) had the hose. I do believe
some of the primitive (read simple) wastegate controls (non-factory --
schrapnel knobben?) routed a hose to this fitting as well.

Ken, do you have the original PDF copies of the introduction and service
manuals for the Urq? If not I suggest you download them from Martin Pajak's
website. I don't have the address handy right now.

-Ingo
On Oct 7, 2010 6:44 PM, "Louis-Alain Richard" <
louis-alain.richard at sympatico.ca> wrote:
> You're right, Ingo, and a bit wrong too.
>
> In fact, ETKA show a length of tubing (620 mm long, 5.5 x 3 mm cloth
braided
> tubing) to be attached to that nipple, just to be sure that no dust can be
> suck in the WG when it moves. But the other end is loose in the engine
bay.
> Classic German over-engineering. However, some say that this loose end
could
> be problematic in an emission test, if the tech is picky. That remains to
be
> proved.
>
> Louis-Alain
>
>
>
>> -----Message d'origine-----
>> de Ingo Rautenberg
>>
>> Ken,
>>
>> The Urq (iirc) does not have anything attached to the nipple at the
>> wastegate. I'm sure others will chime in as to whether I'm correct or
>> mistaken. I don't have an Urq to look at right now.
>>
>
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