Re: Re: fixing lower unit


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Posted by Ken Denman (24.77.36.232) on November 04, 2005 at 20:29:21:

In Reply to: Re: fixing lower unit posted by bob on November 04, 2005 at 17:03:59:

It depends where the crack is. If it affects a bearing surface or seal surface, then you're in for a replacement.

If it occurs on the larger expanses of metal where there is no distortion affecting the innards, then you can seal it.

I have a '57 Fleetwin 7.5 repaired with 2-part slow cure epoxy - it's been like that for several years and no sign of leaking.

1) The self-serve way is to use jb weld, both on the outside and whatever you can do on the inside that won't interfere with moving parts.

2) The best way is to get it welded. Bear in mind that aluminum welding temps can create further distortion.

In both cases, the crack must be very clean - use mineral spirits followed by brake cleaner followed by alcohol.


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