Questions & Answers for: expand head bolt

...bolt, except has a hole drilled through the center and splits cut in the threaded portion creating an "x". there is a small hex head screw set in the hole which expands the threaded portion ...

...out what the problem is? Uses about a quart a week. Longer runs use less after engine heats up and expands. Sound like a head gasket or worse case warped head The head bolts are tty "torque to yield

...to changes in head expansion (the bolt expands more easily with the head) while the engine is running creating a better seal against the block. just follow the directions and all will be

...Head Bolt is typically overtightened at the factory distorting the Cylinder Head and causing Gasket Failure directly around that bolt. I have had to resurface cylinder heads and replaced gaskets on ...

...expand the aluminum and back it out? This bolt is near where the head attaches. Do I run a chance of warping the block? I can get to the bolt with a cutoff wheel, so I can get the transmission off. ...

head to use a wrench on (preferably a strong socket wrench). If you do weld another bolt onto the original bolt, make sure that you let the bolt cool down completely because when you get the bolt hot,

...matching bolt. When this base insert is in the head, it expands when the bolt is turned in. This helps keep the bolt from backing out. I hope my solution is very helpful to you in fixing your

...are require and the use ones if reuse already has no mechanical properties once the head heats and

...between the bolt and head. That or put some blue loctite on the threads. Just remember to have the head removed from the fork tube before the bolt comes out or the expander will come off in the

...is going to blow is the head gasket and the slightest difference in the head flexing in it's rapid expanding/ contracting state may result in it