Hello Folks,
Do you second gen guys use a washer under the flywheel nut? I have worked on more first gen stuff, where a washer is under the nut and then flattened to hold the nut in place.

I looked at the Mazda micro fiche and did not see one, whats the story?
JEB

 

All of the FCs I have worked on so far have not had one. Although some people claim that there is one, I have yet to see one on a car in practice.

 

The stock engine in my GXL had one. None of my turbo motors have one.

 

Hey ed, did mine have one?

 

No second gen's came stock with a washer for the flywheel nut. They used a factory equivalent of red (permanent) thread locker and they are torqued to 300+ ft-lbs... no need for a staked washer; they are already extremely hard tyo spin off; you normally have to heat up the nut to break the tertiary bonds in the thread locker before the nut will budge.

 

Great, thank you!
That seems like a rock solid answer.

 

where can i get the flywheel thread lock thing?

 

Blue loctite anyone?

 

No. Blue loctite is medium strength. Not for use on flywheels.

Permatrex Red Loctite can be found at any automotive store for a couple bucks.

As a side note, red loctite is the same fluid that you use on the front 19mm bolt... which is the reason it is so hard to get off if you don't heat it with a torch first to denature the loctite bonds.

 

hmm,.. i didnt use loctite on my flywheel nut, its been fine so far but ill be sure to loctite it when i have the motor out. Are you sure red is ok? the whole word "perminant" kinda scares me... wouldnt blue be better than nothing?

 

Red is what the factory uses, and what I use. I can still get it off again after putting a flywheel on with it.

The red loctite get's denatured and breaks down around 500 or so degrees fahrenheit. So you just heat up the nut with a propane/MPS gas torch for 2-3 minutes, and the loctite loses its bonding strength. This is why red loctite is completely useless on exhaust nuts.

The FSM calls for red loctite... but I suppose blue would be better than nothing. At 300+ ft-lbs, its a pretty safe bet is not coming loose; but then again, a dropped flywheel can kill you.