for the lazy DIY mechanic..

[AndyStobbs]

Didn't know that, what is the stuff, some kind of superglue? The oil drain plug gets quite hot as the oil tends to reach 110oC in most cars, not surprising really as some of the hottest parts of an engine can reach 1000oC in some places, but the action of the oil and coolant keep things from melting.

I'd of thought that the heat would eventually cause it to fail is the worse place possible...

I thought that there are 3 distinct grades of threadlock (loctite brand) out there, RED - removable cold, GREEN requires heat, PURPLE will knacker a thread, particularly in aluminium. Am I missinformed?

 

[normspanners]

I thought that there are 3 distinct grades of threadlock (loctite brand) out there, RED - removable cold, GREEN requires heat, PURPLE will knacker a thread, particularly in aluminium. Am I missinformed?

red n blue are the main ones, green is for application after its assembled

verry true but loctite has one enemy and thats heat , it soon breaks it down when u want it off ,

We used to use some special grade (and I cannot remember which it was now) on austin rovers 6R4s drive shafts (because they were for ever coming loose) if you put it on a shaft that had just come in from a stage and was HOT, if you did'nt run the nylock up FAST the loctite used to lock the nut before it had tightened the hub !! and the 3/4 drive torque wrench would click off on the loctite !! VERY embarasing