Tap and drill sizes used on HT CG engines

[nimblebee]

For small engine repair kit, looking to create drill and tap set, mostly for drilling out holes which have been permanent thread locked needing hole cleared and threads chased.

Information didn't easily come to light using search function on forums, determined would discover and list tap and drill sizes preferable for HT CG kit engines.

Monitor this thread as discover/make available updates, as they're found.

PS: Got a little bit lazy, purchased thread chasing tap set, for less than $10.

If this isn't enough to cover MB thread's, then I'll post update.

 

[wrench]

Go easy on the loctite

 

[wrench]

For small engine repair kit, looking to create drill and tap set, mostly for drilling out holes which have been permanent thread locked needing hole cleared and threads chased.

Information didn't easily come to light using search function on forums, determined would discover and list tap and drill sizes preferable for HT CG kit engines.

Monitor this thread as discover/make available updates, as they're found.

PS: Got a little bit lazy, purchased thread chasing tap set, for less than $10.

If this isn't enough to cover MB thread's, then I'll post update.

Those look like Taps
It's not a good idea to use a tap to chase threads You'll just end up cutting the threads more and weakening them
The threads will have a greater chance of stripping (pulling out) .

To chase threads use Thread Chase Tools to clean/restore the threads

Pic is just to show ya what thread chase tools look like

 

[wrench]

TIP 2

BTW when using Loctite never pour it in the bolt hole Only put a little on the bolt threads

If ya pour it in the bolt hole it just hardens on the bottom and now the bolt always bottoms out
When the bolt bottoms out ya can't get the correct torque values,
Also with thermal expansion, the hardened loctite on the bottom of the bolt hole is pushing up on the bolt causing the threads to stretch , Which in turn will, cause the threads to strip more easily.

If ya got hardened loctite in a bolt hole heat it up with a torch and pick it out, IDK maybe it'll pour out
If the area will be damaged because of flame, heat it up with a soldering iron

 

[wrench]

permanent thread locked

IDK what strength Loctite your using but Blue Med Strength is recommended, It's not permanent

Go easy on the Loctite