I noticed in my Bentley the following sensor/solenoid broken in the passenger turbo wastegate actuator... ¿where can I buy a spare one?

Thank you.

 

Hello @Jurgeenh Borbon ,
I have a few, you can PM me.

Johnny

.

 

Thank you for the response, I already source one, but I have a question in regards the wastegate ¿How do you calibrate the wastegate?

 

There is no calibration ie: adaptation. Install it and drive. Since it's a Bentley, hope for the best.

 

So, ¿Any rod length will work? I dont want to tight it too much and blown the engine or too loose and lack of power.

 

Greetings,

Please specify what you are doing. My current interpretation regarding the above comment is there was a change to the factory wastegate linkage. Hopefully that is not the case.
Anyway please elaborate so that we have a better perspective, inorder to be helpful.

 

Exactly that was the case, I had to remove both turbos and send them to a welding shop to weld a super tiny hole that was sucking air in the cold side causing rough idle and misfires (performing the smoke test you can literally see smoke coming out of those tiny holes one in each turbo). To be able to weld I had to disassemble the cold side and I had to remove the actuators since those were screwed to the cold side snail, now that everything is assembled again I discovered my wastegates lose, you can move them with your finger, they seems to need any sort of pre-tension from the actuator itself, but I don't know how much tension in the actuator rod is too much.

 

That adjustment is a factory set by the turbo manufacturer. I don't think that is do it yourself job. Try contacting the turbo manufacturer and hopefully they can instruct you as to were to send it.Here in the US used tubos on ebay are reasonably priced. A few years ago I got one for $450.00. My point being that it may prove prudent to evaluate that option as well.

 

I have seen how to adjust the wastegate pre-tension in Borgwarner K03 and K04 but I haven't seen any information on K16, I dont know how differente they are, but seems to be similar physically.

 

Hi all.
I have been on here before regarding a engine management light refering to a wastegate issue.
After a bit of consultation with Bentley and my local garage it appears to be the sensor at fault.
Bentley want £3000 to change this and apparently one of the exhaust sensor too.
My problem is this. The car runs absolutely fine. If I clear the fault by disconndisconnecting the battery it will run all day with no engine management light.
It will return sometimes if i stop and start the car but not always. If it does return i can clear it again and no EML.
So to my thinking it's a glitch. If there was an issue it would be there all the time.
My big problem is that the car is in the garage most of the time and barely driven.
At the moment I am around so I can drive it for the next week or so and see if it finally disappears.
However if it doesn't I'm looking at a costly repair just for a EML.
So any info is welcome.
Cheers Tony.

 

Hello,

Lets start with the troube code(s). The codes might highlight the sensor(s) possibly needing attention and clarify the root cause of this situation.

 

P0243 which is wastegate solenoid error.
Took it to Bentley and they confirmed this. But the car is running fine and as of the past 2 days has gone since I started using the car more. It has sat still for a while as i work overseas a lot.
I'm wondering if it is possible voltage drop has thrown this error up.
My s type jag
does this with the electronic handbrake if it's sat for a while.

 

I am not confident that the sensor is at fault. Any (slight) deviation from the standard ECU mapping during boost is detected by these sensors.

Anyway which sensor does the shop want to change? I believe the above fault code is reported by the sensor(s) on each intercooler which are essentially absolute manifold pressure sensors (MAP). I am not there to see the affected car. I suspect a pinched line or something along that train of thought. The position sensors referred to in this thread rarely if ever go bad.

So my point is the sensor is reporting a fault of the system to be diagnosed.

 

It's my belief that the sensors originally stated are there to electronically check if the waste gate has been fully opend. Usually in a reduced power state. Permanent vacuum is applied to the actuator keeping the ceramic waste gate open hence limiting boost to a mere fraction of normal

As to pre load of the waste gate arm/rod, it will have a pre load applied by tightening up the nut at the end of the arm.
the pre load is usually set up by bench pressurising the actuator whilst fully connected to the rest of the turbo, to a pre determined pressure . The amount of movement of the rod at that pressure will be a factory specific length. That's the point at which the nut is tightened.
From then on the ecu's will trim the boost to the exact fueling map requirements that is requested.
The actuator rod does not have to be super super accurately set up. It needs to be in the ball park.
The electronic vac/boost solenoids along with the engine's ecu's will take care of the rest.