crank case airleak?

[rolmops]

One half of my 1993 9.9 Johnson crankcase made a hard landing on the garage floor and there are a few shallow gauges on the surface.One that might develop into a conduit between the 2 chambers and another that may cause air to be sucked into the crankcase.Both are very shallow.<br />Is there a special adhesive material I can use when I put the 2 halves together that will effectively keep these areas sealed other than the an-earobic permatex I would normally put on there?<br />Thank you,Rolmops.

 

[WillyBWright]

Re: crank case airleak?

You have to use the gel. Other sealants keep the halves from mating completely. Only the gel will ooze out sufficiently to allow a good mate. Fill those flaws with a scratch filler before you assemble (available at autobody supply shops). It comes in a huge toothpaste tube. I'm sure there are other products that would do the fill job as well. Don't be shy about using a file to take out any ridges on the edge where the dropped part landed.

 

[Dhadley]

Re: crank case airleak?

OK, by the book we may have a real problem. In the real world I think we're going to be OK.<br /><br />Which side took the dive? The front half or the block half?<br /><br />First lets make sure the mating surfaces are still straight. Using a straightedge go over the surfaces real close. Even if it's slightly bent out near the edge, as long as it's still straight elsewhere you're OK. As long as there is somewhere straight for the halves to mate and create the absence of air.<br /><br />Check this out and we'll go from there.

 

[rolmops]

Re: crank case airleak?

The block side took the dive and she is still straight.

 

[rolmops]

Re: crank case airleak?

^