wipe over windscreen surface with a damp lint free cloth. I like to pop them out put a nice finish on the aluminum surface then pop them back in and take the prechambers down as close as i can to the aluminum surface without touching it with that wheel. Flycut,Coated Pistons/ A1-H11 Headstuds/ GDP CCV Kit/ 8 Lift/ 37 Toyos. ![]() Look over the surface and note how it droops. When milling the cutter reacts differently to the harder material and screws up your finish, especially if your auto feeding, when grinding you should be using a different wheel for the aluminum than the steel. If I leave them unattended for a month or longer they will have rust on them. I must enjoy the breeze from my zipper being down but have had no problems and had engine with my machined head go 300k and still climbing! Also as for machining with them in, frankly i wouldn't let you near my tools or machines! Iconel or stainless machine differently than aluminum. 0005 or less not flush but slightly protruding. Quote from: BigVWman on October 18, 2011, 09:36:14 am When i say they should protrude slightly i am thinking order of. Here is my hand abrasion setup, a bit crude, but fully functional and calibrated with newspaper to remove natural sag in 3 sheets of plate glass on bench: Machine minimal, but enough to allow contact round the cylinders, and not as I did as I watched the symetrical abrasion patterns emerging. Much warpage is in the surface, where it has turned to jelly and reset. ![]() Leave the manifolds on and tight if possible. Only when released from the block and removed from the intake and exhaust manifold does further shape changing take place. But my own opinion, is that with a failed head gasket, whilst still on the engine the warpage is in the interface and not carried through to the cam carriers. My hand-abraded head is clearly done with skilled arms, Dewarping a head is a complex issue. There can be no better holder of a precup that a purpose built aluminium home. If the tool is knocking them out then job is being rushed. Removing intact precups is just shoddy work skills that are inviting trouble. A head bolt or even stud is not capable of extruding the gasket in the metal regions. ![]() How can it seal on the stepped interface for either fiber or metal. Protruding precups are like walking around with your flies undone.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |