Hit a creek bed this weekend now whole machine is shaking. Cant find source.

uglyfugly · Nov 19, 2018

Was riding this weekend and with early season riding normally there was an open creek we had to hop. So I gapped it and hit hard on the other side. The machine runs and drives now after but theres a noticeable shake to it. Cant tell if its the track or motor... Anything faster than 30km/h and it shakes really good. The whole chassis. I already checked-

-belt for missing teeth
-everything I could think of on the skid like idlers, drivers, hyfax, clips, shocks, ice build ups in tunnel
-chaincase check by holding brake and rolling back forth to see for play.

Im fresh out of ideas. Im surprised it drove be 30km back down the bumpy trail back home. but somethings definitely wrong.

HELP????

CatMan16 · Nov 19, 2018

Might have bent the track driver shaft.

rknight111 · Nov 19, 2018

Firstly what kind of sled? year, make, model

Then looking down at your front shocks and your A-Arms are they pretty much the same, same gaps, just a start.

Bnorth · Nov 19, 2018

CatMan16 said:
Might have bent the track driver shaft.

My vote.

pfi572 · Nov 19, 2018

Bent shaft on drivers also gets my vote.

Ryry44 · Nov 19, 2018

Bnorth said:
My vote.

I third this as well, possible bent driveshaft

bayman · Nov 19, 2018

I'll bet a $5 on the bent drive shaft too.

SnowJunkie82 · Nov 19, 2018

My vote is on a mis-firing flux capacitor or bent girder bearing, but I've been wrong before.

Summitric · Nov 19, 2018

SnowJunkie82 said:
My vote is on a mis-firing flux capacitor or bent girder bearing, but I've been wrong before.

could also be the pendulum shaft or rotary integrator?

kanedog · Nov 19, 2018

In a nice warm shop, put sled on a stand. Have wife or gf slowly squeeze the throttle to get the track rolling.
Put your face so you can watch the trackshaft spin. The shaft and drivers should run true.
If shaft is crooked, ask wife for $1,500 to get it repaired.

BEL · Nov 19, 2018

Summitric said:
could also be the pendulum shaft or rotary integrator?

What, I always thought the standard answer was exhaust bearings?

NoBrakes! · Nov 19, 2018

don't ride it shaking too long... itll take the bearings, gears and chain out in the chaincase....

MarkCos · Nov 19, 2018

Motor mounts are broke and engine is flopping around in there
take a bar and pry up to check for tomuch free play
or stab the throttle with side cover off and look for it trying to take a walk outa there on
Clutch side

deaner · Nov 19, 2018

If you check those things out and everything is good, one thing to check is make sure you still have all four bolts secured in the back of the secondary (that hold the helix in). Had this happen one time and it took me forever to diagnose. Like others have said, put it on a track stand and slowly throttle it up. You should be able to see something happening, whether it is the driveshaft, motor mounts, or secondary.

pfi572 · Nov 19, 2018

Deaner is correct. If that check tower brace as well as it will crack that also.

AreWeThereYet · Nov 19, 2018

I would start by removing the belt and reving just the engine up,. eliminate one and go to the next.

moyiesledhead · Nov 19, 2018

Ahhhh, the early season perils. And so it begins again.

uglyfugly · Nov 21, 2018

To those asking it is a 2013 summit X 154 all stock. I will check all things mentioned when I get home. Thanks.

imdoo'n · Nov 21, 2018

moyiesledhead said:
Ahhhh, the early season perils. And so it begins again.

yup, some just can't wait, lol. oh to be young again!

LUCKY 7 · Nov 21, 2018

so true. I'm ready to go and would love to go but..... age has made me a bit smarter and I am more than happy to wait. same as lots of my sledding buddies

imdoo'n said:
yup, some just can't wait, lol. oh to be young again!

Hit a creek bed this weekend now whole machine is shaking. Cant find source.

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