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Wastegate rattle

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Hey everyone. I think my wastegate actuator rod on my classic have worn as it sits really loose on the wastegate and rattles when idling.  Does anyone know a good place to get a new actuator or even a fix for it. 

 

Cheers


Have you tried to add a bit of hand pressure see if that stops it. Only other way is to adjust it a bit get the actuator arm onto the wastegate arm so that there's a bit of pressure pulling the wastegate shut to stop the rattle. But if you do adjust it don't over tighten it too much otherwise you will hit overboost all the time. Someone else might have a better set up or a trick to get around it though. 

  • Author

Cheers Gambit

 

Yeah with it running at idle if you apply a bit of pressure you can get it to stop.  I'll try to adjust it a little but its very corroded so I'll have to go careful. 

No problem mate. Only other thing I would try is maybe look at getting pretty good nick one from a breakers.

  • Author

Do e a little research and looks like the preload can be set up this should sort it out. I had to beat off a turbo but when changing the down pipe. It's possible it put some play in it. I'll try that first I think otherwise breakers it is lol


I don't blame you mate it's what I would try 1st I like quick cheap fixes ;) 

  • Author

Just gotta hope the threads don't strip. Doused them in oil so hopefully with a little heat they will loosen. Failing that I'll take it off and clean it up properly.

Have to let us know how it goes and if you feel like it pictures are good let others know how you did it if it works I won't discourage that :D 

  • Author

Will do. Should know by tomorrow if I get a chance to look at it.

  • Author

Well it boosts better but needs tweaking as I'm getting sight over boost. It's pretty straight forward to do though


Glad to hear that mate :) yeah I know it's only a matter of a few mil can make a difference :D 

  • Author

It probably needs backing off a half turn. Once I know for sure I'll post what I've done. But it is really simple

That be great thanks. Might help someone else in the future looking though that might not have the know how :D 

  • Author

No worries. I'm no expert though so as long as its all taken with that in mind.

Makes it more important that to show anyone can do it :D


  • Author

Right this seemed to work for me so if anyone wants to try it be my guest back don't take this as fact.

I got rid of my waste gate rattle by preloading the wastegate on the turbo. This is easy to do but be careful not to over load it as it will do damage down the line.

If you take the shielding off of your turbo you will see the waste gate actuator rod. If it's corroded I would douse it in WD40 as you don't want to cause the threads to damage. Carefully crack off the 10mm nut on the rod. Then with a small flat blade screw driver carefully remove the circlip off of the wastegate link. Lift off the rod from the wastegate. Once removed push the wastegate shut with your finger and wind in the actuator rod until you can slide it off and on the shaft without any interference. Once this is done turn the rod (shortening the length) by another 1 to 1 and a half turns. You will then have to pull the rod slightly to fit it back on the waste gate but this has preloaded the actuator. Refit the circlip and tighten the nut. If you get any fluffing noises once this is done just back off the rod by half a turn until it stops.

It's much easier to do than it sounds trust me. Mine is boosting better and feels like a different car.

Once again I'm no expert but after much research this seems to be a standard wastegate actuator preloading sequence.

Hope this helps anyone else.

Thanks mate hopefully be helpful for some other. Appreciate the time taken :) 

  • Author

Like I said anyone can find this info. And I'm not expert. My wastegate rattled due to the rod hole being warn from age. This just reset the actuator rod. It was not for performance reasons and I'm not telling people about it for those reasons. Just if anyone else has a rattling waste gate it may help them reset it

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