Honda TRX ATV Forum banner

1 - 6 of 6 Posts

·
Registered
Joined
·
3 Posts
Discussion Starter #1
i have a trx 250 recon, and i stripped the oil plug drain threads. if i were to get a helicoil for a redo, what size helicoil insert should i order to get the same size as the original drain plug a 12mm i think (altho i use a 17mm wrench to get at it), order a 12mm insert or a 14mm insert for the plug bolt? tnx leon
 

·
Super Moderator
Joined
·
3,769 Posts
It's a 12x1.25 thread about 12 mm in depth - you will need a new sealing washer also and only torque the drain plug to 12 to 14 ft lbs to avoid stripping it again.
 

·
Registered
Joined
·
3 Posts
Discussion Starter #3
thanks for the reply, so i order a 12mm x 1.25 sized Heliocoil insert. and what are the names of the sealing washer, is a there a brand that maked them? tnx leon
 

·
Registered
Joined
·
3 Posts
Discussion Starter #5
tnx. i thought they might have been a softer squishable washer that keep oil from leaking in redos.
 

·
Super Moderator
Joined
·
3,769 Posts
It is aluminum and soft enough it will extrude out after being tightened several times and needs to be replaced about every 3rd to 5th oil change - they will extrude faster when over tightened which is most of the time - torque to 12 to 14 ft lbs and you can make one last about 10 oil changes.

I just removed an improperly installed 10 mm time-sert in a Yamaha and heli-coiled it to 12x1.25 and installed a Honda drain plug and washer - the original 10 mm plug had a 17 mm head as does the 12 mm plug.
 
1 - 6 of 6 Posts
Top