A new power pack failed after 10 minutes???

[kshelly]

Re: A new power pack failed after 10 minutes???

McGR;<br />I agree. I think the BS might have gotten a little deep. I let my mechanic fix the problem figuring that if something is burning up my powerpacks, he'll be getting the boat back to try again if it fails! I can't keep throwing packs at this thing, so I'll let someone else take the chance! As far as the coils go, I figure the spark they deliver depends on the power fed into them regardless of how long they sat on the shelf. My mechanic insists it's fixed and said I should have my faith in this engine restored...time will tell.

 

[Mark42]

Re: A new power pack failed after 10 minutes???

erau85,<br /><br />Stop buying "new" parts from e-bay. You will do much better to get them from regular suppliers. E-bay is fine for used/discontinued stuff, but I would not trust anything "new" from that source. The sellers are not looking out for you.<br /><br />Mark

 

[kshelly]

Re: A new power pack failed after 10 minutes???

Took the boat out last night, ran great! Maybe a good time to advertise it in the paper and get rid of it! Boat ran great but I banged up my Pathfinder launching it. I'm such a moron sometimes! I had my drivers side door open about a foot and was looking over my right shoulder...crunch! Smashed the edge of the door against a pier support. $1700 worth of damage. And wifey thought the boat was expensive...

 

[Hotrods]

Re: A new power pack failed after 10 minutes???

lol,, Yu know people hang out at docks just to see that type of thing happen, my best was, forgot the old plug, jumped in boat and found myself in 8" of water...lol.. gotta love it tho

 

[kshelly]

Re: A new power pack failed after 10 minutes???

Just wanted to bring this post back to the top and thank all who responded. I've had the boat out several times since the last repair and have to say it's never run better. I'm still sloppy at getting the boat back on the trailer, but that's another story! Thanks again!

 

[Tirurito]

Re: A new power pack failed after 10 minutes???

McGr:<br />you said "I can also tell you that I've repaired my old power packs as back ups and there is no rocket science going on in the old modules." Can you share your experience reparing Power Packs, which components usually fails?

 

[McGR]

Re: A new power pack failed after 10 minutes???

Of the two packs I repaired, neither had a hard electrical failure. One came out of a '76 Johnson 85hp. On this one corrosion had creeped up under the terminal block and had actually corroded through the interconnects to the circuit assembly below. Even though this unit is potted, after 20+ years the moisture managed to creep underneath and cause problems. I completely decapsulated this unit in fixing it. The most difficult part of the repair was replacement of some very delicate germanium diodes used on this module. In removing the encapsulation, I cracked a couple of these diodes apart. After crossing the number on the diodes and determining their characteristics, I wasn't too sure if they would still be available, as most germanium semis are now obsolete. However, I got lucky and found that the NTE semicoductor line still carries these. After replacing the busted diodes and fixing the corroded interconnects, the module came back to life. I decided not to pot this one but rather gave it a heavy conformal coating. This way I can always easily repair this again if necessary. I currently keep this unit on my boat as a back-up.<br /><br />The other unit I repaired was on a 1989 40hp (ok... I guess they weren't both from the 70s as earlier stated). This one I completely decapsulated, but couldn't find any problem initially. Ultimately, I traced the problem to a intermittant wire leading to the module. Splicing a new section of wire to the existing one did the trick, bringing the module back to life.<br /><br />As stated previously, the modules I disected were pretty simple and there was nothing high-tech about them, just basic analog circuits.