Thread: How do I dissolve corrosion between the upper and lower unit on an outboard engine?
View Single Post
  #2   Report Post  
posted to rec.boats
BeachBum[_2_] BeachBum[_2_] is offline
external usenet poster
  
First recorded activity by BoatBanter: Aug 2011
Posts: 315
Default How do I dissolve corrosion between the upper and lower uniton an outboard engine?
On 8/7/2011 6:07 PM, wrote:
How do I dissolve corrosion between upper and lower outboard unit so
to get at the impeller?

I took all five nuts off (125 mercury sal****er) the studs holding the
lower unit on. I had to use penetrating spray to get the washers off.

After whacking the seam dividing the upper and lower with a rubber
hammer till blue in the face I etched/scored/scratched the seam to
allow penetration spray to work in, nothing.

After 24 hours of repeated spraying whacking and more scoring, the two
halves still won't come apart. Short of pounding in a chisel (gouging
aluminum), and prying them apart, anyone have an idea?

Use a sharpened straight putty knife as a wedge between the halves. Once
you see a gap you can use a wide chisel. Don't rush it it will come
apart with minimal scarring. File down the boo boos on the mating surfaces.
Reply With QuoteReply With Quote