frenshawas

right now i am using a tdo4 on a obx maniflod with an adaptor plate. the damn bolts keep backing out i tried using lock washers and the heat made them just washers. the other problem i have is that im using the factory black j pipe and it is to far down so i couldnt run all of my intercooler piping i had to use rad hose and its not boostin fully and the boost keep falling off. Any ideas/

seerex

Lock tight is you friend. Boost leak is the main boost problem. Oh wait I just answer your question using the info you already knew

frenshawas

wont that burn off because of the heat

caged

I have found that if you put the lock tight on and leave it for a few days then drive the car it will hold for a few months but then it will just burn off.

frenshawas

so there isnt anything i can do to fix it for good? i really dont feel like getting another mani

aero

A last resort can be drilling the bolt heads and safety wiring them if you can't figure anything else out.
http://www.whizwheels.com/Tips/safetywiring.html

BoostForLife

It could be that your thread is a little bigger than your bolts. Redrill, tap, get bigger bolts.

wrinkledmr2

I'm using locking exhaust nuts. Parts stores carry them in the Help! or Dorman section. It's a stud and nut kit, gold in color, says it's for import or Toyota.

E-b0la

Exactly. They may be harder to find in bigger diameters though.

What they are is a nut that has a slight taper to them. They start a the thread spec, then taper to a tighter diameter, so the "lock" on to the stud/bolt.

Smith-02

use two nuts and lock them on themselves by holding the first one still and tightening the second. gr8 hardware.