chasing never ending bog

[frontierfire]

I have been chasing this since last season sled will run good then just completely fall on its face in heavy load conditions , but if I shut it off then restart it will rip again never does gain full rpms though, 18 800 Axys Silber turbo, went through top end all good, exhaust valves and cable all good had digital wrench relearn done, bench tested stator and voltage regulator, replaced EGT sensor, checked all wiring, checked exhaust for leaks, went through primary and secondary, running 82 grams and 100LL I'm in Alaska so 0-3000 feet .

thanks for any help

 

[gmustangt]

How many # boost? Rpm?

could be an over rev (det). Had this scenario last year.

 

[frontierfire]

found it hot side of turbo damaged, thanks Kyle Nichole Your the man

 

[Sheetmetalfab]

found it hot side of turbo damaged, thanks Kyle Nichole Your the man

Kyle is definitely the one to talk to about running silber kits in Alaska.

Mine runs perfect. (He installed it for the sleds original owner)

 

[Colbymh]

found it hot side of turbo damaged, thanks Kyle Nichole Your the man

What was the issue? I have a 2020 running 7# and have hesitation issues. Cant find ****. Replaced donuts, springs, checked valve, all new boon docker clutching, 63g with #14 capsules, belt deflection on point.

I need to chk motor mounts as it appears to have vibration. Nothing standing out. It can rip and stand up one second and the next it will hesitate and not want to push thru. Also had a max det code twice. Running straight 100 av gas, tried 5# spring, same issues. Tried both fuel modes, same issues.

 

[Tewstroke]

Is your DET sensor positioned and torqued correctly?

 

[RMK900Tractor]

DET sensor position? Did not know that.

Does anybody have a procedure or a link to a shop manual for a Polaris 2021 850?

 

[Sheetmetalfab]

DET sensor position? Did not know that.

Does anybody have a procedure or a link to a shop manual for a Polaris 2021 850?

It gets clocked to 2 o clock (wire towards secondary clutch)

Torque spec per polaris.

 

[bryceraisanen]

What was the issue? I have a 2020 running 7# and have hesitation issues. Cant find ****. Replaced donuts, springs, checked valve, all new boon docker clutching, 63g with #14 capsules, belt deflection on point.

I need to chk motor mounts as it appears to have vibration. Nothing standing out. It can rip and stand up one second and the next it will hesitate and not want to push thru. Also had a max det code twice. Running straight 100 av gas, tried 5# spring, same issues. Tried both fuel modes, same issues.

Why r u running straight Av gas at only 7# boost? Too much octane is notorious for stumbling and bad throttle response.

Sent from my SM-N976U using Tapatalk

 

[live2beel]

Don't know if this helps. This is off Boondockes site.

 

[RMK900Tractor]

Thank you!