For support please email or pm Christopher christopher@snowestonline.com



Upgrade to Premium
Polaris: IQ 2005-Current, all models in the IQ and IQ Raw chassis
Reply
 
Share Thread Tools Display Modes
  #1  
Old 01-24-2018, 09:30 PM
RTBS RTBS is offline
Currently: Not set.
Join Date: Nov 2013
Posts: 9
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
RTBS is an unknown quantity at this point
Default Engine exhaust valve holes stripped


I have a used sled I purchased and after cleaning the power valves a couple of the holes where the short screws go (top & bottom) are stripped. Any suggestions on what to do to repair the holes? I could tap them and use a bigger screw or use a helical coil or there is an epoxy that loctite makes that you can remove the screws after it hardens. Not sure if it the temperature rating would be sufficient. Anyone else had to repair stripped holes in the aluminum block?
Reply With Quote


Rate this post: Yes | No
  #2  
Old 01-24-2018, 10:31 PM
mtncat1's Avatar
mtncat1 mtncat1 is offline
Currently: waiting for snow
Join Date: Oct 2008
Location: south jordan ut.
Age: 56
Posts: 2,004
Thanks: 2,888
Thanked 318 Times in 228 Posts
Rep Power: 21397181
mtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond reputemtncat1 has a reputation beyond repute
Default

glues won't work as a professional mechanic i only use helli coils
__________________
2013 163 w X3 w/ rkt dropin kit
Reply With Quote


Rate this post: Yes | No
The Following User Says Thank You to mtncat1 For This Useful Post:
89sandman (01-24-2018)
  #3  
Old 01-25-2018, 10:19 AM
05900's Avatar
05900 05900 is offline
Currently: Hele i kahi mokupuni
Join Date: Nov 2007
Location: Where the Buffalo roam
Posts: 9,556
Thanks: 3,295
Thanked 2,505 Times in 1,579 Posts
Rep Power: 21474856
05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute05900 has a reputation beyond repute
Garage
Default

Helicoil and place a stud in there loctite if ya wanna...
__________________
-----------------------------------------------------

You might not see him in person, But he'll see you just the same..

Reply With Quote


Rate this post: Yes | No
  #4  
Old 01-25-2018, 02:40 PM
XCaSSAULT XCaSSAULT is offline
Currently: Go Wild!
Join Date: Dec 2016
Basic Member
Posts: 228
Thanks: 42
Thanked 35 Times in 28 Posts
Rep Power: 2330249
XCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond reputeXCaSSAULT has a reputation beyond repute
Default

Why not get a longer bolt and nylock nut on the backside?
Reply With Quote


Rate this post: Yes | No
  #5  
Old 01-27-2018, 11:29 PM
RTBS RTBS is offline
Currently: Not set.
Join Date: Nov 2013
Posts: 9
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
RTBS is an unknown quantity at this point
Default

Thanks for the responses. I like the idea to using a longer bolt and place a nut on the backside where I have access to do that.
Reply With Quote


Rate this post: Yes | No
  #6  
Old 10-08-2018, 10:59 AM
littlenanner85 littlenanner85 is offline
Currently: Not set.
Join Date: Sep 2011
Basic Member
Age: 30
Posts: 9
Thanks: 0
Thanked 2 Times in 2 Posts
Rep Power: 0
littlenanner85 is an unknown quantity at this point
Default

I had the same issue on the used sled I bought. I am a huge fan of using a timesert over the helicoil. I personally believe they work way better, the only downside is the price of the kit. I did the bolt and nut for a period of time, but ended up using the timesert to make a more permanent solution.
Reply With Quote


Rate this post: Yes | No
The Following User Says Thank You to littlenanner85 For This Useful Post:
mountainhorse (10-08-2018)
  #7  
Old 10-08-2018, 12:46 PM
BeartoothBaron BeartoothBaron is offline
Currently: Not set.
Join Date: Nov 2017
Location: Roberts, MT
Posts: 130
Thanks: 17
Thanked 46 Times in 27 Posts
Rep Power: 3161542
BeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond reputeBeartoothBaron has a reputation beyond repute
Default

I used several Heli-coils on an aluminum Mercedes engine I did a top-end rebuild on. Through-bolts weren't an option on most of those, but I'd have repaired the thread either way. You could use a through-bolt if you're looking for something quick and dirty; I'd go with the thread insert just because it's a more elegant solution (actually better than new since the insert is stronger). I've heard of Time-serts: they're the preferred solution to a frequent problem of head bolt threads stripping on the engine I was working on (fortunately not a problem on mine), so I'd expect they're superior to Heli-coils.

On the topic of stripped threads, it seems like a question of not if but when on aluminum threads, but you can reduce the likelihood by using anti-seize and always torquing to spec. I had to replace the water pump on my truck because two of the three bolts for the thermostat were stuck so hard they just snapped, and ever since I've been religious about cleaning and putting anti-seize on aluminum thread. I don't think I've ever stripped threads that I've "treated" that way.
Reply With Quote


Rate this post: Yes | No
The Following User Says Thank You to BeartoothBaron For This Useful Post:
mountainhorse (10-08-2018)
  #8  
Old 10-08-2018, 12:59 PM
mountainhorse's Avatar
mountainhorse mountainhorse is offline
Currently: CONTEMPLATING: "Laughter is gods hand on a troubled world.".
Join Date: Dec 2005
Location: West Coast
Posts: 18,244
Thanks: 8,744
Thanked 9,379 Times in 4,158 Posts
Rep Power: 21474867
mountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond reputemountainhorse has a reputation beyond repute
Lightbulb

vote +1 for the Timeserts !

Helicoil->Better
Time Sert-> Best (IMO)

Good prices, fast/fair ordering (no.. im not 'sponsored')
www.mechanicstoolsandbits.com/time-sert







.
__________________
.






Signature:

Last edited by mountainhorse; 10-11-2018 at 10:33 AM.
Reply With Quote


1 out of 1 members found this post helpful. Rate this post: Yes | No
The Following User Says Thank You to mountainhorse For This Useful Post:
TecCrash (10-28-2018)
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thread — Engine exhaust valve holes stripped Thread Starter — RTBS Forum — Polaris Replies — 2 Last Post — 01-29-2018 11:29 AM
Thread — Stripped holes on bottom of hood Thread Starter — Catrider144 Forum — Arctic Cat: Proclimb M Replies — 4 Last Post — 04-08-2015 10:04 AM
Thread — Stripped Exhaust Threads Thread Starter — FBM Forum — Yamaha: Boosted Sleds (Turbo or Supercharged) Replies — 8 Last Post — 10-29-2014 09:31 AM
Thread — How do you check to see if the power valve (exhaust valve) is working properly? Thread Starter — mx100 Forum — Ski-Doo: ZX Sleds Replies — 6 Last Post — 12-14-2012 05:35 PM
Thread — M7 Exhaust Valve Check Engine Light Thread Starter — BEPM7 Forum — Arctic Cat Replies — 9 Last Post — 02-08-2008 03:33 PM

All times are GMT -6. The time now is 08:20 AM.

no new posts