Valve Adjuster lock nut damage/overtorque
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.
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.
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
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
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

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.
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.
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.
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.
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.












