my turbo cab'e got an annoying little rattle noise when I'm off the throttle, I first thought this was the exhaust but after removing it to check it today found it isn't. I've now found the cause, its the wastegate vibrating because when I push the actuator rod gently against the actuator the noise goes away.

So my question is is this down to adjustment or is the actuator on its last legs and has become weak?

Car is running standard boost with no issues.

 

ihad same problem and found it was exhaust as hasnt got the same mounting points as cab. i know u said it was wastegate/If your not having no probs with boost then i wouldnt wory too much bout it. CVH engines have got plenty of other noises to notice and worry about!

 

its bugging me so I will have to sort it

 

wind it in a couple of turns so its a bit tighter, wont changed the boost huge amounts

 

shortening the rod yes?

 

yeah, think the rule aways was, the bar should cover half the hole, so it should be tight enuff to not rattle

 

cheers carl, finally had a chance to sort the actuator today, nice easy ten minute job even on the floor, the noise has gone and its boosting a lot better, there was no pre load on the wastegate whatsoever

 

What plank fitted that?
The boost is not going hogher than what you are setup for though is it? Always best to be safe!

 

no mate its unchipped and i checked the pressure how stu@msd told me to years ago and its running 7psi 0.5 bar so all should be good

 

Good man!