What should you use to seal the engine case when rebuilding a 1976 1500 engine?

Answer 1

Are you talking about the halves of a VW 1500 CC air cooled? If so, have everything ready, then use a good quality silicone gasket sealing material. You only have a short period of work time, so act quickly. BTW, if it's a VW, did you align bore the block, recondition the rods (big and little ends) and replace the exhaust valves? Also, don't just replace rings since the top groove often gives out when VW pistons are re-used. Pistons and cylinders are quite inexpensive when you consider the fact that you effectively have a new engine. You should also make sure you replaced the oil pump. Sorry, I do go on too much. No, no! Never use silicone gasket sealing material to glue a VW case back together. It's too thick, and screws up your main and cam bearing clearances. The official VW-recommended product is VW Case Glue. As you'd expect, VW stopped selling VW Case Glue when they quit selling the cars that need it. However...motorcycle companies didn't quit selling aircooled motorcycles, and their engine cases are glued together too. What you should use is Yamabond 5, from any Yamaha dealer. There are several types of Yamabond; Yamabond 5 is the right stuff for you. You can also use Hondabond HT from a Honda motorcycle dealer.