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Max Online: 36273 @ 01/23/13 02:34 PM
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#10788398 - 04/22/15 04:49 PM Small crack on lower unit
Basshead21 Online   sleepy
Pro Angler

Registered: 03/20/05
Posts: 523
Loc: Fishing
I have a small crack on my lower unit casing. It's leaking fluid. It's on a 1993 Evinrude 150. Will JB weld do the trick?

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#10788612 - 04/22/15 05:48 PM Re: Small crack on lower unit [Re: Basshead21]
JMac-D Offline
Extreme Angler

Registered: 11/27/13
Posts: 1400
Loc: Cleburne Tx
I would have it professionally repaired, it might stop the leak momentarily, but i would think the crack would keep on spreading.

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#10788819 - 04/22/15 07:11 PM Re: Small crack on lower unit [Re: Basshead21]
Basshead21 Online   sleepy
Pro Angler

Registered: 03/20/05
Posts: 523
Loc: Fishing
I think I might just take it in.

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#10788917 - 04/22/15 07:44 PM Re: Small crack on lower unit [Re: Basshead21]
ssmith Online   content
Extreme Angler

Registered: 11/22/07
Posts: 2448
Loc: scotland tx
don't waste your time or money get anther case when you weld on the outside of it the case will distort an it wont seal been down this road.

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#10789613 - 04/23/15 01:35 AM Re: Small crack on lower unit [Re: Basshead21]
stick steering Offline
TFF Team Angler

Registered: 08/06/07
Posts: 4591
I think you might need to find out what caused the crack if it has a little bulge there its gonna have some damaged gears

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#10789711 - 04/23/15 06:59 AM Re: Small crack on lower unit [Re: Basshead21]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 10530
Loc: Littlefield Tx & Lake A. H. US...
Most likely froze. Replace it.
_________________________
“The world will not be destroyed by those who do evil, but by those who watch them without doing anything” GOD IS GOOD

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#10789863 - 04/23/15 07:59 AM Re: Small crack on lower unit [Re: Basshead21]
Basshead21 Online   sleepy
Pro Angler

Registered: 03/20/05
Posts: 523
Loc: Fishing
I hit a tree getting on plane. Two days later I noticed the crack. It's very small the fluid looks good I drained it.

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#10793744 - 04/24/15 12:52 PM Re: Small crack on lower unit [Re: Basshead21]
steve@scp Offline
TFF Celebrity

Registered: 08/25/06
Posts: 6628
Loc: Quitman,Tx
the problem trying to weld that is you now have oil saturated metal.
will be virtually impossible to get a clean weld.

unless you find someone that can wire mig aluminum (spool gun). they do
much better at spot welding and not getting the case hot like a tig welder does.


or.. yes.. replace the case and no more worries
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#10794101 - 04/24/15 02:39 PM Re: Small crack on lower unit [Re: Basshead21]
UncleJed Offline
Outdoorsman

Registered: 02/04/05
Posts: 203
Loc: Richardson,TX
I have a similar issue on an old 1977 Johnson 140...noticed a small oil leak on my driveway one day.Started cleaning up and sanding the paint off so I could see the crack better,and low and behold,I was sanding into a patch of JB Weld,that had been on there for no telling how long.So what did I do? More JB Weld,and now good for a few more years! Not a permanent repair by no means, but when a replacement lower unit costs more than the whole motor is worth,5 bucks worth of JB every few years makes good sense to me!Just gotta know it's there and keep an eye on it.

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#10802161 - 04/27/15 08:54 PM Re: Small crack on lower unit [Re: Basshead21]
Dawson Hefner Offline
Extreme Angler

Registered: 09/10/09
Posts: 2782
Loc: Brownsboro, Tx
A used lower runs 700-1500. An after market can go for about a grand. Being stranded because your lower unit that you knew was cracked worth the money you save if it don't fail? If you have much mechanical inclination a lower is usually pretty easy to swap.
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www.texasmegafishadventures.com for guided rod and reel alligator gar angling
Licensed Guide Dawson Hefner
903-721-4296

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