Engine Starting Problems
Posted: Sat Aug 06, 2016 9:36 pm
I am having starting problems with my 1985 Evinrude 40hp. I had early season engine troubles which turned out to be the timer base. Have been out a few times since the repair and engine seems to start up fine initially, but after shutting it off for a few minutes or an hour I have had problems starting. When it's a colder start after an hour or so I prime, choke and lift starting lever. This last time I shut engine off for 5 minutes and then it wouldn't start. Only electronics I had running was color chart plotter which shouldn't drain battery in a letter of minutes.
When I check the battery with a multimeter with engine off it comes in at 12.6 volts. Is that a good number for an interstate deep cycle group 29 or should it be higher?
My plotter diagnostic screen says its registering 11.4 volts but multimeter said 12.6. I got this battery in August of the 2012 season.
I am not sure if it's the battery or if the battery isn't charging properly.
When I am on a plane and I check the diagnostic screen on my plotter the voltage ranges anywhere from about 11.4 to 14. I am assuming when it's as high as 14 it is charging.
Someone also mentioned it could be corrosion inside battery cables if they are old and too much resistance. In my research it sounds like this engine needs to really be cranking fast for it to fire properly.
Any tips on diagnosing this concern would be appreciated. I was thinking about just getting a new battery, but 12.6 volts didn't seem to be low to me.
Thanks!
When I check the battery with a multimeter with engine off it comes in at 12.6 volts. Is that a good number for an interstate deep cycle group 29 or should it be higher?
My plotter diagnostic screen says its registering 11.4 volts but multimeter said 12.6. I got this battery in August of the 2012 season.
I am not sure if it's the battery or if the battery isn't charging properly.
When I am on a plane and I check the diagnostic screen on my plotter the voltage ranges anywhere from about 11.4 to 14. I am assuming when it's as high as 14 it is charging.
Someone also mentioned it could be corrosion inside battery cables if they are old and too much resistance. In my research it sounds like this engine needs to really be cranking fast for it to fire properly.
Any tips on diagnosing this concern would be appreciated. I was thinking about just getting a new battery, but 12.6 volts didn't seem to be low to me.
Thanks!