Low boost???

[TRS]

On one of the sleds(600+ miles), yesterday, had low boost. The end of the spring rod that inserts into the wastegate was worn. It will pass a relearn but doesn’t close the wastegate.
If yours is witnessing low boost, you can confirm on the dash gauge, it may be the actuator rod.
I’ll take pics today.

 

[TRS]

Here you go.

 

[Devilmanak]

Thanks for showing us your worn rod. My bud's wasn't right out of the gate, almost zero boost. But his was a bad actuator servo. Took 3 weeks for Polaris to figure it out, even though it was a wastegate code. That pretty much said what the problem was.

 

[turboless terry]

Wish someone would figure out my low boost problem

 

[rmk800ak]

Tony was it seated all the way in ? I’ve seen a few post of them actually not even seated in the wastegate. Think maybe a bed of high temp down in there would give it a bit more contact area .


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[TRS]

It was seated. It can be seated further but will need a relearn. We moved this one nearly a 1/2” further in.
I believe the variation in pipe alignment is the culprit.
The actuator has a locating pin. The over structure should have a slot machined for the locating pin to get a proper seat for the spring rod. Hope that made sense.

 

[rmk800ak]

Yeah makes sense . Few bugs to work out it seems .


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[TRS]

ttt

 

[damx]

We are seen this on the 22 and 23 in the group, now that they are getting up there in miles.

 

[JeffBrines]

Just a quick question here - was the fix reseating it or did you buy a new spring rod?

 

[Teth-Air]

Thanks for posting about this. My 24 Boost had the actuator cable fall out of the waste gate a couple times. I think the expansion chamber has shifted somehow as the cable seems too short, aswell the dump tube to the muffler seems barely long enough to connect. I managed the actuator cable problem by sliding the actuator down the overstructure about 1/2' This makes it closer to the waste gate. The position of the expansion chamber to the muffler still has me scratching my head though as it all looks fine. I would recommend others look at how far the cable is inserted in to the actuator as mine was starting to chew.

 

[damx]

Thanks for posting about this. My 24 Boost had the actuator cable fall out of the waste gate a couple times. I think the expansion chamber has shifted somehow as the cable seems too short, aswell the dump tube to the muffler seems barely long enough to connect. I managed the actuator cable problem by sliding the actuator down the overstructure about 1/2' This makes it closer to the waste gate. The position of the expansion chamber to the muffler still has me scratching my head though as it all looks fine. I would recommend others look at how far the cable is inserted in to the actuator as mine was starting to chew.

They were like that on the 22-23, if you push them in farther when new it won't round off as fast. Also on big jumps or crashes the cable pops out, sometimes.