Merc 502 slow crank or normal?

[thunder550]

I feel like my 502 is cranking over a little on the slow side, wondering if I should look at replacing the starter. Batteries are new and have a full charge. Does this seem slow to anyone else or am I just being paranoid?

First two videos are me jumping the slave solenoid so it will crank without starting. Third video is cranking and starting with the key.

https://www.youtube.com/watch?v=SBqnCBFzU1w

https://www.youtube.com/watch?v=hN2r957mSWM

https://www.youtube.com/watch?v=fQWDjNekBrU

 

[scoflaw]

Mine sounds like that,, 2 new batteries also. I've had mine for a few months and thought it was a bit slow as well.

 

[alldodge]

Mine use to sound close to that until I replaced the starter with a permanent magnet type, now she spins fast

 

[thunder550]

Thanks guys. AllDodge, which brand did you put in yours? I see iBoats has Sierra, Arco, and ProTorque brands available.

Was it a direct replacement or did you have to make any wiring changes?

 

[alldodge]

Mine is API, but would suggest the one I have, Wilson, Delco, Arco, but would not suggest Sierra

 

[thunder550]

Thanks. I read some bad reviews on the Sierra starter on Amazon as well. Will steer clear.

 

[thunder550]

I went ahead and ordered an Arco PMGR starter. Might not be necessary but the slow cranking always makes me nervous, I don't like the way it sounds even if it's fine. Might be in my head but I think it's a little worse when the engine is hot too. Hopefully this will alleviate any possible problems with the starter and my nerves.

 

[San_Diego_SeaRay]

Mine use to sound close to that until I replaced the starter with a permanent magnet type, now she spins fast

Same experience. I swapped out my starter on my 7.4 and the engine cranked over much faster than before. I previously thought it was a bad battery but it turns out it was entirely the starter. (Only difference was that my original starter was a permanent magnet and so was the replacement)

 

[San_Diego_SeaRay]

I went ahead and ordered an Arco PMGR starter. Might not be necessary but the slow cranking always makes me nervous, I don't like the way it sounds even if it's fine. Might be in my head but I think it's a little worse when the engine is hot too. Hopefully this will alleviate any possible problems with the starter and my nerves.

My slow cranking resulted in a failed starter. So you're wise to nip it in the bud.

 

[thunder550]

Ahhhh that's more like it

https://youtu.be/aYIFoN3Mgd4

https://youtu.be/QUksZzLnuvM

 

[alldodge]

That would be cranking

 

[thunder550]

That would be cranking

Thanks for the help!