S2000 Under The Hood S2000 Technical and Mechanical discussions.

Valve Adjuster lock nut damage/overtorque

Thread Tools
 
Old Jun 23, 2012 | 02:23 PM
  #21  
Billman250's Avatar
Moderator
Active Streak: 30 Days
Active Streak: 120 Days
Liked
Top Answer: 1
 
Joined: Jul 2002
Posts: 22,386
Likes: 1,837
From: Long Island, New York
Default

Take one bolt out, and use a tapered punch to re align the shaft. no hammer, just wiggle by hand.

if you look down one of the holes, you can use a philips screwdriver to align it also.
Reply
Old Jun 23, 2012 | 02:34 PM
  #22  
mattstryfe's Avatar
Thread Starter
15 Year Member
Photogenic
 
Joined: Mar 2006
Posts: 251
Likes: 2
Default

Originally Posted by Billman250
Take one bolt out, and use a tapered punch to re align the shaft. no hammer, just wiggle by hand.

if you look down one of the holes, you can use a philips screwdriver to align it also.
Alrighty. I'll give it a shot. I understand the tapered punch method but I am not following the philips screwdriver method unless you're just referring to using it, as I would the punch.
Reply
Old Jun 23, 2012 | 05:39 PM
  #23  
mattstryfe's Avatar
Thread Starter
15 Year Member
Photogenic
 
Joined: Mar 2006
Posts: 251
Likes: 2
Default

Go it done. Took a lot of force. I had to put 4 total screw drivers in it with the help of a friend.




thanks everyone. Car runs great.

Reply
Old Jun 25, 2012 | 07:21 PM
  #24  
chino101's Avatar
Registered User
 
Joined: Dec 2006
Posts: 818
Likes: 0
From: Bethesda, MD
Default

Just out of curiosity, what do the damaged parts look like?
Reply
Old Jun 25, 2012 | 07:50 PM
  #25  
mattstryfe's Avatar
Thread Starter
15 Year Member
Photogenic
 
Joined: Mar 2006
Posts: 251
Likes: 2
Default

Originally Posted by chino101
Just out of curiosity, what do the damaged parts look like?
I'd be happy to post some images tomorrow for those that could learn from my mistake. I don't think I emptied my garage trash can yet.


Reply
Old Apr 9, 2020 | 12:41 PM
  #26  
twitchyzero's Avatar
Registered User
 
Joined: Apr 2020
Posts: 13
Likes: 1
Default

bumping a relevant old thread

during the lash adj i either stripped the adjuster screw or locking nut, made the novice mistake of going straight for the 3/8" torque wrench set at 168in/lb instead of hand tightening first

tried to rethread the nut (it was stripped pretty clean) to m8x1.25 but still not locking

local honda dealer said the replacement nut is backordered 2 months...does anyone know what type/size it is so I can maybe hunt one down at a hardware store?

thank you
Reply
Old Apr 9, 2020 | 12:43 PM
  #27  
twitchyzero's Avatar
Registered User
 
Joined: Apr 2020
Posts: 13
Likes: 1
Default

i saw tiny metal shavings come out as I was turning the torque wrench

some advice please on what to do now
Reply
Old Apr 9, 2020 | 04:00 PM
  #28  
Chuck S's Avatar
Member (Premium)
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2014
Posts: 13,829
Likes: 1,550
From: Chesterfield VA
Default

I don't see how you can strip a nut at 14lbf. Nor how you can get an ordinary torque wrench on the nut with a screwdriver holding the screw firmly but I digress.

Only notation I see in the service manual (page 6-10) has an arrow pointing to the nut (I assume) with "7 x 0.75mm" notation. A standard nut size.

-- Chuck

Last edited by Chuck S; Apr 9, 2020 at 04:04 PM.
Reply
Old Apr 9, 2020 | 04:07 PM
  #29  
Billman250's Avatar
Moderator
Active Streak: 30 Days
Active Streak: 120 Days
Liked
Top Answer: 1
 
Joined: Jul 2002
Posts: 22,386
Likes: 1,837
From: Long Island, New York
Default

Is it only the nut that is damaged?

Take a good nut from another rocker, thread it onto the adjuster. This will determine if the threads are ok on the adjuster itself. The nut needs to turn completely free with ZERO binding.

I’ll send you a nut but the adjuster needs to be checked first.
Reply
Old Apr 9, 2020 | 04:26 PM
  #30  
Billman250's Avatar
Moderator
Active Streak: 30 Days
Active Streak: 120 Days
Liked
Top Answer: 1
 
Joined: Jul 2002
Posts: 22,386
Likes: 1,837
From: Long Island, New York
Default

Originally Posted by Chuck S
I don't see how you can strip a nut at 14lbf
Very simply, by using a 3/8 drive tool on 1/4 size hardware.

Take two torque wrenches, one 1/4 drive and one 3/8 drive, both set to 14ft-lbs.

When working on a 1/4 fastener, you’ll achieve close to 14ft-lbs with the 1/4drive torque wrench. The 3/8 drive wrench will put much more torque on the bolt than the 1/4” drive, because the tool cannot feel the fastener. It is over-capacity for the job.

The tool drive should always closely match the fastener. NOT the bolt head size, but the bolt shaft size (1/4 is close to 6 or 7mm)

There will be exceptions sometimes. Some high end torque wrenches have refined breakaway provisions, allowing better feel for smaller fasteners. They are expensive and only found on tool trucks.


Reply



All times are GMT -8. The time now is 11:01 AM.