My actuator rod keeps snapping on my -34 on my 2wd saph, second one snapped today and yesterday the actual bar snapped that goes down to the wastgate

TBH i think theres somthing wrong with my turbo damper as it doesnt seem to be doing much.

Any help would be fantastic

 

How much preload you running??

i cant see the turbo damper causing this.

Any pics of your turbo fitted??

 

I do run quite a lot of pre load on my actuator tbh and i do realise this is most likly the cause but im just curious

 

Had this happen before. It was down to a bent actuator bracket.

 

T34 by any chance? If so its very common and its due to a resonant frequency clash of teh front and rear wheels.

Fix is simple, Fit teh correct actuator.

 

That was why i wanted to see a pic,

As for best boost controll, the actuator needs to mounted as straight as posible to the wastegate, and so wen it opens it moves in the direction of where the wastegate needs to go.

 

the actuator was what turbo technics supplied along with the t34 i *THINK* so surely it is the right one

 

Well, is it the right one or not?

 

well the 1st one snapped and that was the one that came with the turbo lets say not sure about this one but the 1st one was

 

So it looked like this did it?


very short shaft?

 

No its got a fairly long threaded shaft and is just a standard -34 to suite the 2wd turbo setup, as supplied by turbo technics.

Turbo damper wasnt working correctly as one of the discs was damaged and this may have not helped with vibration.

Ill go and have a look at the allignment of the actuator

Stu what do you mean about correct actuator ??

 

The correct actuator for the T34 is teh one shown above, and it is used for teh reasons i stated initially. Tests show that the snapping is due to a HF issue on SOME installations and it almost always shears directly where the nut is tightened up.

The long term cure was to do what garret did and extend the actuator rod so the point of the HF clash was thicker and stronger steel.

 

is it a garret actuator though

 

is it a garret actuator though (the snapped one that is)

 

garret make different actuator rod legths for different turbos,,, even though they got the same lift rate

 

Ill take some photo's now when i take it off....

Turbo technics are sending me a new one in the post but im going down in my car as its getting on my tits quite a bit now !!

 

answer your phone you gimp