Heel piece won't slide for pre-load

[jhyatt]

This is a tyrolia heel piece on a pair of skis for my teenager that my buddy gave me.
One of the heel pieces doesn't slide when adjusting fore/aft for preload. The other one does.
I can slide it to adjust position, but once in position it's stuck.
They have been sitting for a few years, so I sprayed some WD-40 in there in case there was corrosion. Waited. Still no movement.
I can put the boot in and all the pre-load seems to be in the toe, so I am assuming that's unsafe.
I tried a different boot and still no dice. I tried a different boot with way too much pre-load thinking that might free it. Nope.
Anything else to try? I don't want to try any harsher solvents for fear or messing up plastics, etc.

Grazie

[XXX-er]

WD 40 is the 40th concoction the engineer tried and the WD stands for "Water Displacing" so its not really a lubricant but sometimes the product carrier works as lube

hard to say with out playing with it in my hands

[cat in january]

Pb blaster is my go to to release frozen parts. Is it possible to disassemble?

[XXX-er]

I wonder if the heel piece was slid all the way rearward to the limit of its preload and somehow got stuck there ??

not familiar with the binding but maybe try loosening off DIN completely and wanking about with the binding size adj.

[Eluder]

Pb blaster is my go to to release frozen parts. Is it possible to disassemble?

PB blaster is great, but I wouldnt use on anything with plastic that is important.

Assuming the back most heel screws are fully tightened and not inhibiting the heel to slide. Make sure the tab is actually up and whack it with a rubber mallet.

[jhyatt]

PB blaster is great, but I wouldnt use on anything with plastic that is important.

Assuming the back most heel screws are fully tightened and not inhibiting the heel to slide. Make sure the tab is actually up and whack it with a rubber mallet.

Yes I will try the rubber mallet next. It looks like the tab is in the right spot.
I adjusted the din but I will try totally loosening and then persuading

[jhyatt]

Won't slide [emoji3166]
These are for my 14 year old so I want it to work correctly. Bindings are not that old.
I tried backing the DIN all the way off, then all the way to 12. At 12 it felt like something might snap when I clicked in the boot.
Removed the heel and looked underneath and sprayed some tri flow in there. Looked ok.
Tapped with mallet. Both ways.
I'm stumped [emoji848]
Anything else to try?
I can slide it on the track to adjust bsl but it won't slide on the fixed part as part of the preload

[singlecross]

Try putting a soldering iron tip on the metal tracks in strategic places to get some thermal expansion/ contraction to see if you can break things loose?

This method often works on locked up screws by placing the tip on the screw head and thermally expanding it to break the seal.

[tenB]

Hate to tell you this, but if that track/heel piece is frozen, it’s likely other parts of that binding are compromised too. Get your daughter a new pair of bindings, decent used ones are pretty cheap here.

At a minimum get them torque tested if you can get the forward pressure set correctly

[MyNameIsAugustWest]

Trying to understand....
So, you can move the heelpiece fore and aft after prying up that tab.
But when you click a boot in, the heel piece doesn't move aft to provide forward pressure and move to the middle-ish line on the tab? For Tyrolias, it just has to move into the range, doesn't have to be dead center.

Just thinking the obvious here but maybe try moving the heelpiece forward one more slot on the track?
Tyrolias can be a pain to click into sometimes. I've moved some forward enough that it didn't look like the boot would actually fit but after forcing the issue, the FP was dead center.
Never encountered one that didn't pre-load.
Like tenB said, if it won't move back into that range of lines on the tab, it may be time for new clamps.

[jhyatt]

Trying to understand....
So, you can move the heelpiece fore and aft after prying up that tab.
But when you click a boot in, the heel piece doesn't move aft to provide forward pressure and move to the middle-ish line on the tab? For Tyrolias, it just has to move into the range, doesn't have to be dead center.

Just thinking the obvious here but maybe try moving the heelpiece forward one more slot on the track?
Tyrolias can be a pain to click into sometimes. I've moved some forward enough that it didn't look like the boot would actually fit but after forcing the issue, the FP was dead center.
Never encountered one that didn't pre-load.
Like tenB said, if it won't move back into that range of lines on the tab, it may be time for new clamps.

Correct. I can slide it to set BSL, but when I click in the boot it won't slide for preload. Not at all.
Only one heel, not both.
They are at the same stop on the track.

I would hate to chuck a pair of bindings if there is a simple fix I am missing. But I also see it's worth the cost of replacement bindings for the safety.

These were ridden hard and put away wet for sure.

[Vitamin I]

Sounds sketchy enough to me that I would want to slide the heel completely out of the track to clearly inspect what's really going on in there.

Could be an obstruction in there, like a pebble or gravel or sand. This past summer at Mammoth, I saw a patroller who had to completely unmount his whole Look Pivot heel in the middle of his work shift, just to brush out all the summer volcanic gravel out of there, because the heel just wouldn't pivot at all anymore.

.

[utagonian]

What happens if you remove both heels from their tracks and swap them to the opposite ski’s tracks?

[jhyatt]

What happens if you remove both heels from their tracks and swap them to the opposite ski’s tracks?

That's a great idea I'm going to try it

[MyNameIsAugustWest]

What happens if you remove both heels from their tracks and swap them to the opposite ski’s tracks?

A good idea but from his description, it doesn't really sound like the issue is with the tracks...he's able to slide the heelpiece throughout the full length of the track for sizing. It's only when the heelpiece is in its fixed position for size that it won't slide back (pre-load) when the boot is clicked in. That sounds like an internal to the heel piece issue to me.

J, let me know if you want a newish pair of Attack 14 ATs for a great price. I've been hoarding them but now I am transitioning to the Scarpa 4 Quattro which is GW compatible. I've got at least 1 set of bindings that don't have a ski to go on.

[jhyatt]

Just to follow up... I swapped the heels and then nothing moved.
then i tried a larger boot to sort of force it and they moved!
So I remounted the toe pieces a little further back and not the boot is in the right spot and the heels are sliding forward pressure good and let's ski some more. wootsie tootsie!
bottom line... fiddle around with stuff.

[MyNameIsAugustWest]

Hmmmmm....not sure I would trust them. Might be worthwhile to take them to a reputable shop and have them tested.