Sealing Crankcase Mating Surfaces

SEALING CRANKCASE MATING SURFACES

Note: Only Loctite 574 (orange) should be used as a sealant.
Loctite 574 will dry only in conjunction with metal and exclusion of air. After applying a coat of sealant the bolts should be installed and tightened no later than 10 minutes, since the sealant on the metal will start to dry.

Removing Old Sealant

The old sealant does not have to be removed for repairs. It is only necessary to remove grease from the surface, so that after the cleaning solution has dried the new coat of sealant can be applied.

The new Loctite will dissolve the old sealant in the surface finish and dry again after, assembling.

We recommend a fine steel brush or Loctite remover 80646 for removing old sealant, if this is ever necessary.

Applying Sealant




1. We recommend a short pile velour roller for application by hand. A tray will also be required for the sealant and should have a rough edge to scrape excess sealant from the roller.




2. Roll an uniform coat of Loctite 574 on the mating surface of left crankcase section with a velour roller. Brush on sealant around studs.