What should be tightened-the nut or the bolt head?
Some people believe that by tightening the bolt head rather than the nut it will affect the torsion in bolt shank. The torsion in the shank of the bolt depends upon the thread friction torque. For a given finish condition, the thread friction has some scatter associated with it, but will not depend on whether the nut or the bolt head is tightened.
What to do about a Norton cylinder head oil leak?
The Norton Technical Digest, taken from old Norton Technical Bulletins, recommends Gasgacinch on the flame ring gaskets, and Copper Coat on the copper gaskets. Eric Lamberts ([email protected]) on NOC-L 18th.
What causes an oil leak in the cylinder head?
Oil leaking from there can be drawn forward through the small holes in the barrels that are between the cylinders. This is apparently done by a vacuum effect. It is then blown around by normal air passage and makes it look like a front cylinder head leak I learned this from Brian Slark years ago when I thought I had a recurring cylinder head leak.
Can you tighten a nut with A Keps unit?
The same can be achieved by using a KEPS unit (a washer being held captive on a nut). So in general, when using torque control, tightening the bolt by rotating the bolt head or the nut can matter. It is good practice to specify which part should be tightened so that the bolt preload variation is minimised.
What to do if your master cylinder is leaking?
Just a thought to keep in mind when you re-replace it. Pull the master cylinder away from the booster and inspect the rear for leaking brake fluid. If fluid is leaking get it replaced. And while brake fluid leaking into a booster will cause the booster to fail I can’t imagine that a booster could cause a master cylinder to fail.
Why is brake fluid leaking from the rear of my master cylinder?
Master cylinder problems include external leaks, internal leaks and valve problems. Brake fluid leaking from the rear of the master cylinder bore is usually bad news because it means the seals are leaking.
Why is my master cylinder leaking on my 87 Dakota?
Over the weekend I installed a new master cylinder and rear wheel cylinders on my 87 Dakota, trying to remedy a slowly sinking pedal while applying light to moderate pressure, like at a stop light. There was no loss of fluid, so I figured it was the MC. It was time to replace the shoes, so I did it all at once.
What to look for in a cylinder leak down test?
The leakdown tester is a great diagnostic tool to identify real cylinder pressure difficulties. But don’t be alarmed if you get 15 to 18 percent leakdown on all cylinders. If the cylinders perform within a couple of percentage points of each other, look elsewhere for any perceived problems. Author Shortino, Dennis Created Date
