Traditionally, oil was the go to for engine rebuilding. Camshafts, bearing and cranks were all doused in it to aid assembly and prevent metal to metal contact prior to oil flow and pressure coming on tap a few seconds after start up. Thing is, most classic owners don't rebuild the engine, put it in the vehicle and immediately start it. The engine rebuild often occurs weeks or even months before it goes in the vehicle so its sitting there in the workshop or car whilst everything else gets finished and gravity takes its toll, draining the oil into the sump.
Assembly Lube is a lubricant to apply to potential wear surfaces before assembly in order to prevent metal contact upon startup before adequate lubrication is supplied. It provides three times greater film strength than conventional black molybdenum disulfide greases and will not clog oil filters. This product clings to all surfaces and is an excellent rust inhibitor, allowing the storage of parts for years. A thin film of protection is all that is required on mating parts. Our Assembly Lube will mix with motor oil and can be used on all lubricated parts such as cams, followers, pistons, and bearings, and bolt threads. Use only a small amount on bearing and piston surfaces, too much can make it difficult to turn over the engine. Assembly Lube is an excellent corrosion inhibitor and can be used on machined surfaces to provide long-term corrosion protection. It should not be used on exhaust bolts or other high temperature bolts which require an anti-seize (also available from C&B).