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EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Tuning, Maintenance and Repairs › Mounting screw pops visible on base--How big of a problem?
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Mounting screw pops visible on base--How big of a problem?

post #1 of 20
Thread Starter 

Was waxing my skis and noticed these two little nipples on the base. Yes, they are directly beneath two heel binding screws. 

 

They are hard to see in the photo, and you can barely feel them with your hand. 


How big of a deal is this?

 

post #2 of 20
From a current skiing perspective, I'd say not very big in terms of impact to your skiing. You mostly use your edges and comparing those lumps to just the snow surface you won't notice a thing. But... In terms of potential impact to the ski and long term ski life? I'd be back to the shop in an instant asking for replacements. It's not like the bases are that thick to begin with.
post #3 of 20
Quote:
Originally Posted by afterburn View Post
 

Was waxing my skis and noticed these two little nipples on the base. Yes, they are directly beneath two heel binding screws. 

 

They are hard to see in the photo, and you can barely feel them with your hand. 


How big of a deal is this?

 


It's not a huge deal, but it's not good.  The screws are too long!  Take them out as soon as possible and file or grind them down a bit.  Then the bases should contract back a bit after hot waxing.  You can ski them a bit, but it needs to be fixed!  Take them back to the shop that mounted them. 

post #4 of 20
Thread Starter 

Thanks! I'll be paying the shop a visit before I ski on them again. 

 

The problem I see is there will still be weak points right above the base there. A direct hit may be unlikely, but not impossible.  sI am thinking it might be prudent to ask them to Epoxy (and let set up) the holes and redrill shallower? I have lots of mechanical experience, but no experience with ski laminates. 

post #5 of 20
Quote:
Originally Posted by afterburn View Post
 

Thanks! I'll be paying the shop a visit before I ski on them again. 

 

The problem I see is there will still be weak points right above the base there. A direct hit may be unlikely, but not impossible.  sI am thinking it might be prudent to ask them to Epoxy (and let set up) the holes and redrill shallower? I have lots of mechanical experience, but no experience with ski laminates. 


No, that won't work.  Just follow my advice above.  The minute amount of epoxy break there won't be a factor, but you need to have the screws shaved ASAP.  Who knows, the shop may replace the skis due to a bad mounting, but I kinda doubt it.  They would have to suck up the cost.  Then again you never know.  It may be someone there learns a good lesson or gets their ass chewed out.

 

Like I said if you do it right away, after a good hot waxing they should "suck" back in a bit.  Better to have small concave than a protrusion.   Good luck, let us know what the shop has to say.  :popcorn

post #6 of 20

Jacques -

 

Just curious - are you recommending shaving because you don't think the shop will have the correct screws?  Or to make sure the threads don't change?

 

Or is this caused by a prep hole that wasn't drilled deep enough, rather than the wrong screw?

post #7 of 20

Who mounted 'em????  Inquiring minds want to know!

post #8 of 20

Have seen it a few times, sometimes its an issue with the screw, I've seen it more when you mix companies, is Salomon bindings on a Rossi ski etc.  The other thing that I have seen it caused by is the shop not cleaning out the drill holes after drilling.  Take them back to the shop and they should sort them out.

post #9 of 20
Quote:
Originally Posted by mdf View Post
 

Jacques -

 

Just curious - are you recommending shaving because you don't think the shop will have the correct screws?  Or to make sure the threads don't change?

 

Or is this caused by a prep hole that wasn't drilled deep enough, rather than the wrong screw?


Could be a shallow hole?  Same as screw too long.  It is common practice to grind a screw to the proper length. Screws come in sizes.  Some need to be ground anyway.   All the screws have the same thread.

post #10 of 20

Some combination of the above: shallow hole, not cleaning the hole properly or screws that are marginally too long.  You'll hardly notice while skiing, but they can be fixed.  Remove the screws, grind them back a little (or replace them) and try again.  Or you could have the shop do it.  Once the pressure comes off the base they should be fine.

post #11 of 20

That's just plain laziness or incompetence.  If a shop did that to my brand new $800 skis, I'd be getting a brand new free pair!

post #12 of 20
Quote:
Originally Posted by Jacques View Post
 


No, that won't work.  Just follow my advice above.  The minute amount of epoxy break there won't be a factor, but you need to have the screws shaved ASAP.  Who knows, the shop may replace the skis due to a bad mounting, but I kinda doubt it.  They would have to suck up the cost.  Then again you never know.  It may be someone there learns a good lesson or gets their ass chewed out.

 

Like I said if you do it right away, after a good hot waxing they should "suck" back in a bit.  Better to have small concave than a protrusion.   Good luck, let us know what the shop has to say.  :popcorn

 

Quote:
Originally Posted by afterburn View Post
 

Was waxing my skis and noticed these two little nipples on the base. Yes, they are directly beneath two heel binding screws.

 

They are hard to see in the photo, and you can barely feel them with your hand.


How big of a deal is this?

 

Jacques's advise is sound. You want to do that before you have a base grind or your base will be thinner in those places. I have had a similar experience mounting some rock skis in my garage and while I had the binding off to shorten the screws, I warmed up a metal scraper and the base (Just warm) and "C" clamped the scraper over the nipples to help flatten them out while it cools. By the time I had the screws prepped, the ski was cool and nipples were gone. Fortunately, I noticed it right after the mount and the glue had not set. The skis in your photo look like fairly new boards, so I would try bringing them back to the shop before you do anything to fix the problem.

post #13 of 20
Thread Starter 

I will have them back in the shop this sunday and will let you all know what they say and what they do.


Thanks for all the great feedback!

post #14 of 20
Quote:
Originally Posted by afterburn View Post
 

I will have them back in the shop this sunday and will let you all know what they say and what they do.


Thanks for all the great feedback!


Good luck.  It really should be fine after the screws are ground down a bit and the ski is hot waxed a few times.  Better to have a small dent than a small pimple!

post #15 of 20
Just want to mention some other possibilities of this happening. One is if you have an excessively thin ski design like volkl kendo, another would be a thin plate under the binding was misplaced prior to mounting- which is a very common occurrence on the higher end tyrolia chassis bindings.

In your case a couple passes on a stone grinder, after a little heat and hammer, will erase those dimples. No big deal really.

Heres a severe example my bud brought to me. Before and after.

post #16 of 20
Thread Starter 

Thanks Chenzo.  Its not a thin ski at all. The binding is aaatack 13. So it is Tyrolia, but I don't think that's the high end your talking about?  Thanks for the pics. I am sure the shop will straighten out similarly, and yes, your friend's was a lot worse!

post #17 of 20
I'm not positive, but I think the attack 13 may have the thin plate. Here's a pic of the toes with and without a plate, you can check to see if yours are missing -
post #18 of 20
Thread Starter 

Will do when I get home. Very helpful info!

post #19 of 20
Thread Starter 

I just realized I never updated. I took them them to the shop that mounted them. They did exactly as Jacques described above. I've skied them ~dozen days since then and all is well. 

post #20 of 20
Quote:
Originally Posted by afterburn View Post
 

I just realized I never updated. I took them them to the shop that mounted them. They did exactly as Jacques described above. I've skied them ~dozen days since then and all is well. 


Good end to the story!  Good shop that fixed the error.  Ski on!

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EpicSki › The Barking Bear Forums › On the Snow (Skiing Forums) › Tuning, Maintenance and Repairs › Mounting screw pops visible on base--How big of a problem?