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  #1  
Old 01-21-2010, 04:35 PM
Olivier's Avatar
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What is the position in a manual acurator,open or close?

Hi,
On the car when I start it the vaccum suck on the actuator to close the wastegate. Today I was reving up and down while parked and the actuator was jiggling, opening and closing the wastegate on and off. I beleive this is what happen on full throttle as the car is like been restrained.
The question is if I fit a manual actuator, will it close the wastegate untill the proper pressure is up that will then push it up to open the gate or will the wastegate be open all the time and, like the setting I have, it need something to suck into the acuator to close the gate?
Cheers.
Olivier
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E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...

Last edited by Olivier; 01-21-2010 at 04:57 PM.
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  #2  
Old 01-22-2010, 08:26 AM
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Bump.
Anyone had an idea?
Are the manual actuator pushed in and once the pressure is reach it would push them out to open the wastegate?
And what pressure would be resonnable on the E300TD in bars?
Cheers.
Olivier
__________________
E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...

Last edited by Olivier; 01-22-2010 at 08:36 AM. Reason: may as well ask what pressure too
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  #3  
Old 01-22-2010, 08:37 AM
layback40's Avatar
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Location: Victoria Australia - down under!!
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Oliver,
I dont know if this is of use, on an Izuzu I have, it uses the charge pressure to actuate the wastegate. The actuator is spring loaded so it remains shut until the charge pressure goes over the preset max, it then has enough pressure in the wastegate actuator to overcome the spring force and open the wastegate.
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1967 230-6 auto parts car. rust bucket.
1980 300D now parts car 800k miles
1984 300D 500k miles
1987 250td 160k miles English import
2001 jeep turbo diesel 130k miles
1998 jeep tdi ~ followed me home. Needs a turbo.
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Old 01-22-2010, 11:11 AM
Olivier's Avatar
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Cheers Layback,
When the pressure overcome the spring, is the arm going out, like away from the actuator?
On the E300 the spring loaded actuator is on open all the time, arm strecht away from it, then when I start, a pump suck it in to close the waste gate and then when the ECU think there is enough pressure it open it.
I think this is the opposite with a manual actuator that work only on pressure(?),that its close ( arm fully retracted inside the actuator) when no boost, but as soon as there is enough boost the arm is puched away from the actuator.
Is that correct?
Cheers.
Olivier
Got it. Reading different post and find there are two acuator style , a pressure and vaccum. the E300TD as a vaccum, I just need to get a pressure one, but need to get the right BAR or PSI for it.
Cheers.
__________________
E300TD year 2000. RUSTY SOLD
cost a fortune to maintain on the road
but run well on WVO
Second Merc died due to corrosion ( NOT rust) How can mercedes get away with that for so long?
Third lasted a month then went away...
Fourth now... Corroded too...

Last edited by Olivier; 01-22-2010 at 11:25 AM. Reason: got it.
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