William Miller
Member
Need Thoughts and Ideas
06 290 Amberjack.
2x 350 mag mpi Bravo III
I refurbished both engines and reinstalled them last summer. They both run great.
Both original starters were replaced because they were pretty ugly and because they are so easy while the engines were out.
Both worked perfectly on the bench.
Starboard engine srarter has an intermittent problem thats slowly getting worse.
It sounds as if the starter motor spins without the bendix pushing the gear to engage the ring gear on the flywheel.
After a few tries it would work... never been stranded. Usually this happened when the boat sat for several days
Some time i could help it work by using the emergency start switch on the dash which combines all four batteries.
The starboard 2 batteries were new. They read 12.6 v and 13.6 aprox. With the engine running.
After half of this season with frustration and limited time I decided to replace them.
Did normal maintence on the port bank. Cleaned all the terminals and some of the connectiona that i could reach on the bus bars and Emergency switch Solinoid.
By the way I live over an hour and a half from the boat an my battery tester was home.
So of course no joy except I ruled some things out. But am now thinking its a resistance/ voltage drop problem , bad ground or bendix is just getting stuck.
So if I get the port side running its pushing 14.6 or so then hit the emergency switch it raises the voltage on the starboard side to the same. IT will then start.
So I will head down Friday for the weekend.
I have a second new starter on its way along with a new 90 amp fuse that goes at the starter.
To get to the starter i have to remove all 4 batteries. Slide down on top of the trays on the starbord side of the starbord engine and hope to get my hands and tools between the stringer to get those lower bolts out.
Ill check the ground on that side, the fuse and positive terminal. Plus check out the wire that energizes the bendix.
Ill probably bench test the new new starter and just i stall it just because.
So what am I missing?
Thanks for your thoughts and prayers!
This will not be fun.
Unfortunately my son is out of the country.....
06 290 Amberjack.
2x 350 mag mpi Bravo III
I refurbished both engines and reinstalled them last summer. They both run great.
Both original starters were replaced because they were pretty ugly and because they are so easy while the engines were out.
Both worked perfectly on the bench.
Starboard engine srarter has an intermittent problem thats slowly getting worse.
It sounds as if the starter motor spins without the bendix pushing the gear to engage the ring gear on the flywheel.
After a few tries it would work... never been stranded. Usually this happened when the boat sat for several days
Some time i could help it work by using the emergency start switch on the dash which combines all four batteries.
The starboard 2 batteries were new. They read 12.6 v and 13.6 aprox. With the engine running.
After half of this season with frustration and limited time I decided to replace them.
Did normal maintence on the port bank. Cleaned all the terminals and some of the connectiona that i could reach on the bus bars and Emergency switch Solinoid.
By the way I live over an hour and a half from the boat an my battery tester was home.
So of course no joy except I ruled some things out. But am now thinking its a resistance/ voltage drop problem , bad ground or bendix is just getting stuck.
So if I get the port side running its pushing 14.6 or so then hit the emergency switch it raises the voltage on the starboard side to the same. IT will then start.
So I will head down Friday for the weekend.
I have a second new starter on its way along with a new 90 amp fuse that goes at the starter.
To get to the starter i have to remove all 4 batteries. Slide down on top of the trays on the starbord side of the starbord engine and hope to get my hands and tools between the stringer to get those lower bolts out.
Ill check the ground on that side, the fuse and positive terminal. Plus check out the wire that energizes the bendix.
Ill probably bench test the new new starter and just i stall it just because.
So what am I missing?
Thanks for your thoughts and prayers!
This will not be fun.
Unfortunately my son is out of the country.....