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Max Online: 36273 @ 01/23/13 02:34 PM
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#12258268 - 05/23/17 12:07 AM 1984 Evinrude 40hp advice
Catfish676 Offline
Outdoorsman

Registered: 04/20/14
Posts: 172
Loc: Fort Worth
Howdy. I recently acquired a 1984 Evinrude 40hp (attached to a 1983 Alumacraft boat). The boat/engine has been sitting in a covered slip in the water without moving for about 10 years. I removed the engine cowl and the motor is full of dirt dobber nests. Also the part of the lower unit that has been sitting in the water (along with the hull) is coated in years of algae, etc to the extend a water hose with sprayer attached did not do much to remove it. Does anyone have any advice on how to approach the engine to see whether it is salvageable and also what to use to get the years of algae etc off the hull and lower unit? I was told by a non-mechanic to remove the spark plugs to test for compression. Im sure I will need to have the ignition key? If the owner has lost the key, what are my options at that point?? Many thanks for any help!

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#12258303 - 05/23/17 01:42 AM Re: 1984 Evinrude 40hp advice [Re: Catfish676]
Satio Offline
Outdoorsman

Registered: 09/01/08
Posts: 86
Loc: Arlington, Texas
Originally Posted By: Catfish676
Howdy. I recently acquired a 1984 Evinrude 40hp (attached to a 1983 Alumacraft boat). The boat/engine has been sitting in a covered slip in the water without moving for about 10 years. I removed the engine cowl and the motor is full of dirt dobber nests. Also the part of the lower unit that has been sitting in the water (along with the hull) is coated in years of algae, etc to the extend a water hose with sprayer attached did not do much to remove it. Does anyone have any advice on how to approach the engine to see whether it is salvageable and also what to use to get the years of algae etc off the hull and lower unit? I was told by a non-mechanic to remove the spark plugs to test for compression. Im sure I will need to have the ignition key? If the owner has lost the key, what are my options at that point?? Many thanks for any help!


For a key, you can check the ignition switch itself for a 2 digit code stamped on where you put the key in. With that code you can get a key from Evinrude dealer.

After 30 years it may no longer be legible but if it has the original switch it once was there.

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#12258351 - 05/23/17 06:28 AM Re: 1984 Evinrude 40hp advice [Re: Catfish676]
gary purdy Offline
TFF Guru

Registered: 05/24/03
Posts: 11484
Loc: Littlefield Tx & Lake A. H. US...
bolt
_________________________
The world will not be destroyed by those who do evil, but by those who watch them without doing anything. Remember what He has done and remember that He is not done yet!-- GOD IS GOOD

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#12259398 - 05/23/17 03:15 PM Re: 1984 Evinrude 40hp advice [Re: Catfish676]
Catfish676 Offline
Outdoorsman

Registered: 04/20/14
Posts: 172
Loc: Fort Worth
Thanks for the response. Just got an update from a mechanic that took a quick look at it and he said both cylinders are reading a compression of 100. I have no idea if that is good or not - he said it was given the time it as sat. Does anyone have any thoughts on that?

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#12263551 - 05/25/17 10:42 PM Re: 1984 Evinrude 40hp advice [Re: Catfish676]
Catfish676 Offline
Outdoorsman

Registered: 04/20/14
Posts: 172
Loc: Fort Worth
Can someone kindly let me know if there is a better place to ask about this?

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#12263697 - 05/26/17 06:20 AM Re: 1984 Evinrude 40hp advice [Re: Catfish676]
Cat finder Offline
Angler

Registered: 03/14/15
Posts: 455
Loc: Dallas, Texas
Iboats.com
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