I am having a huge issue with my 2006 Switchback. When out riding, I get huge chunks of ice built up inside the tunnel causing the suspension to bottom out. The ice that builds up on the heat exchange at the end of the extended tunnel breaks off every so often, but the ice at the front of the tunnel does not want to come out. Any suggestions? Also, how do you know if your Fox shock needs to be rebuilt?

Thanks!

I have a MY07 that has the same ice build up problem. It builds up underneath the tunnel, behind the rear carrier wheels and up to the beginning of the heat exchanger. I take a small hammer and a screwdriver and bust it up every few days. Mine is studded, so the tunnel protectors inverted T, gives the ice something to hold onto.

I rebuild Fox shocks after the first year of use, and then every 4,000 miles or 2 seasons after that. The water getting inside of them can cause problems as the seals age.

Try using Pam or some other cooking spray to coat the tunnel after it has warmed up and dried. I've heard of people using it to keep ice from building up on the rails and billet wheels. There is also a product which I believe is called Slush Guard that is supposed to work well.

I am having the same problem, one day running and it will add about 15 lbs of ice in tunnel. I carefully use a long pry bar to chip and remove ice. I weighed it in a plastic bag to see how much and it weighed in at 15 lbs. The rear heat exchanger must melt snow and it gets trasferred to tunnel because it is pretty much ice not snow build up. I was in Kearney and went to Parry Sound via the Seguin trail and stored sled in heated garage overnight and there was a chunk that came out about 10 bs .. I'll try the spam! That seemes to be a lot of weight to add to a sled in the rear suspension in a day

Yep! Same issues on my 06 FST swithch. A 4 hr run at -23ºC and there will be at least a 10lb block of ice inside the tunnel. I have heard where this block of ice has become dislodged at high speed and actually jammed into the track at the front of the tunnel in the drive area causing unknown damage and possibly even personal injury if you were to lose control of the sled. This is what scares my the most. I certaily will be trying the Pam. I would also think that Rain X or maybe some other windsheild ice melter might work just as good or better as that is what they are designed for. Any other suggestions would be greatly appreciated. I would also recommend to everyone that owns a sled with a rear tunnel heat exchanger to check the ice build up as often as possible. I check everyrtime I stop for more than 5 minutes so that I can get some of the slush out before it freezes.

I TRYED THE PAM AT THE END OF THIS YEAR ON A 2009 FST SWITCHBACK. DID NOT HELP.

JEB

This stuff is supposed to be pretty good....was planning on trying it if I bought the Switchback I am looking at.

FLUID FILM CORROSION PROTECTION

http://www.ebay.com/itm/270794428212?ssPag...984.m1423.l2649

i had damage on my stock track due to the block of ice jaming up in tunnel between the track and the tunnel. gouged it pretty good.