Rectifier Burnt out...

[andreworiordan]

Hi Guys,
Yesterday While on my way back to the marina my engine died, I just about made it back in, after a long search we found the problem the main fuse was blown as a result of a burnt out rectifier, I have removed the old one with the aim of fitting a new one, the engine in question is a 2003 mercury 4stroke engine. I recieved a phone call about 30min ago with a price for a new part, €720!!!!!! €600 Trade! this seems like alot, I was thinking about €150... is there anywhere I could pick one of these up second hand? Ireland or England?? Thanks for your help once again guys!

[Nos4r2]

Originally Posted by andreworiordan

Hi Guys,
Yesterday While on my way back to the marina my engine died, I just about made it back in, after a long search we found the problem the main fuse was blown as a result of a burnt out rectifier, I have removed the old one with the aim of fitting a new one, the engine in question is a 2003 mercury 4stroke engine. I recieved a phone call about 30min ago with a price for a new part, €720!!!!!! €600 Trade! this seems like alot, I was thinking about €150... is there anywhere I could pick one of these up second hand? Ireland or England?? Thanks for your help once again guys!

Try talking to Electrex.They might be able to do something.

[nan-ber]

a common fault on these engines, your lucky it didnt go on fire, i have an old one that was over charging by 3 volts, i m sure its t same as te yam 100 4, try john flood marine in the north or ker in donegal both yam dealers, you cant pay 720 .

[andreworiordan]

I believe they are similar if not the same engine blocks as the yamaha 100 4s, Will call a few yam dealers tomorrow, I have also emailed electrex world, I have the number off the old rectifier RS41 53 2F19, hoping to be back in the water asap.

[Nos4r2]

Originally Posted by andreworiordan

I believe they are similar if not the same engine blocks as the yamaha 100 4s, Will call a few yam dealers tomorrow, I have also emailed electrex world, I have the number off the old rectifier RS41 53 2F19, hoping to be back in the water asap.

Electrex should be significantly cheaper than anywhere else. I use them a fair bit for bike electrics and they always beat OEM prices by a long way.

If they can't help with a straight replacement,you may find if you can provide them with the alternator type they can match it with a bike unit that'll fit with new contacts fitted.

[andreworiordan]

where would i be able to find the alternator type? I have the serial number off the engine but finding it hard to try find any info on her

[Nos4r2]

Originally Posted by andreworiordan

where would i be able to find the alternator type? I have the serial number off the engine but finding it hard to try find any info on her

That's the hard bit (sorry!).

You need to know enough about electrics to work it out yourself from the wiring diagramme and the max AC output (should also be in the manual) from the alternator-unless you can post a wiring diagramme on here and the max AC output and someone will be able to tell you.

[nan-ber]

where is t rectifier situated on your engine , is she carb or injected

[andreworiordan]

The engine is a carb model and the rectifier is located behind the air filter, i had to remove part of this to get at the unit, I have no wiring diagrams or workshop manuals for the engine, i have been trying to find what i can online.

I also received an email today from a company in America for $446.50 (€310)

What would happen if the rectifier was left out for a while? could it burn out the staters? or will it just not charge the battery

[andreworiordan]

Just had a look at boats.net as advertised on here, I found the part on there for $140, they will not ship overseas but I could arrange to get it shipped from the states, sounds too good to be true?! has anyone had any dealing with them?