Question about Boating
I bought a boat with a 25hp Evinrude that appears to have not been maintained. I want to replace the water pump and maybe some other seals, but cannot get it to drop. I've squirted PB Blaster on the main bolt for weeks and still not budging. Hitting it with large rubber mallet is getting me nowhere. Saw a YouTube where the guy stood his motor upside down and pumped an entire can of degreaser into the housing to free up a stuck drive shaft spline. I also had a guy tell me that I needed to heat the bolt area really hot, but I only have a propane torch, no acetylene. Any ideas?
You could take off the lower unit and leave the boat home. All they need is the bottom. The propshaft seal can be cut from fishing line. There should be another seal on the shift assembly and a third on the powershaft. Some you could do, but the shop can pressure test before and replace only what you need. Then pressure test after the repair to verify it seals.
Posted on Jul 20, 2009
On an old motor,the problem will be that the shaft that runs from the crankshaft to the g/box may have frozen .The shaft has a splined fitting that goes into the bottom of the crankshaft.These have a habit of fusing together.It can sometimes be a problem to get them apart.1st try is to unbolt the power head and put some gentle heat onto it.The fused part (bottom of the crank).2nd is to turn the crank and with a soft striker(eg copper or zinc shaft)striking it all the way around the fused point,maybe 10 or 20 times.Then try the heat again.Its a long process but cheaper than having to buy new stuff. Hope this helps
Posted on Jul 23, 2009
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Posted on Sep 10, 2012
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Sep 25, 2013 | Boating
have you changed the impeller inside the lower unit.
There is copper pipe to redirect water up into the engine.
When you replaced the impeller make the copper pipe is insert onto the engine.
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