I need to convert mando alternator to delco

[stang32]

I have a 98 4.3 mercruiser engine & need to change from mando to delco. I changed motors & the new motor came w/delco serpentine set up, the old motor was v belt mando.
anyone do this? I know i can do it ,i would love to hear from someone who has done it already.

 

[Don S]

Re: I need to convert mando alternator to delco

I have a 98 4.3 mercruiser engine & need to change from mando to delco. I changed motors & the new motor came w/delco serpentine set up, the old motor was v belt mando.
anyone do this? I know i can do it ,i would love to hear from someone who has done it already.

You say your new motor has a Delco, and you want to change from Mando to Delco.
What are you trying to change? Wiring? Pulley?

 

[stang32]

Re: I need to convert mando alternator to delco

wiring
the delco has a plug, the mando doesn't. also looks like the delco has more connections than the mando

 

[Bt Doctur]

Re: I need to convert mando alternator to delco

what one is it?
How to properly wire your Marine Alternator

 

[dan t.]

Re: I need to convert mando alternator to delco

Delcos are about as simple as they come, either a single wire to the battery or, a 3 wire system as shown in the link from Bt Doc. Be aware that on a 3 wire system you need some sort of a resistor or diode in the ignition + wire otherwise it will feed back and the motor wont shut off, An idiot light in the dash serves a tripple purpose, it serves as a resistor,it tells you the alternator is charging, and if it comes on while running its a good bet the belt came off.

 

[stang32]

Re: I need to convert mando alternator to delco

the harness i have is a 4 wire harness, red, orange purple & black(ground)

the parts diagram I have shows the alternator I want to use & it is classified as a delco, yet the diagram from bt doc shows the bottom right alt as mando.

see phtos below, the alt w/out the wires is the one I want to connect. the wiring harness is a 4 wire harness as listed above.

 

[Don S]

Re: I need to convert mando alternator to delco

 

[Bt Doctur]

Re: I need to convert mando alternator to delco

i dont get to work on much of the newer stuff but is that a marine alternator? looks kinda open in the back.

 

[Don S]

Re: I need to convert mando alternator to delco

i dont get to work on much of the newer stuff but is that a marine alternator? looks kinda open in the back.

Yes, it's marine, Merc has been using it since around 2000. It just doesn't have shielding you can see.

 

[dan t.]

Re: I need to convert mando alternator to delco

Why not keep it simple and just put a serpentine belt pulley on the mando alternator that you have? As far as I know all alternators use the same size shaft.

 

[stang32]

Re: I need to convert mando alternator to delco

Why not keep it simple and just put a serpentine belt pulley on the mando alternator that you have? As far as I know all alternators use the same size shaft.

i would but the v belt alternator has a differnet bolt pattern & it was on the left side of the motor, the new set up cals for the alt to be on the right.


thanks don, just what I needed. the spade conector does not get used though huh?
anyone know where i can get one of those plugs for the alternator?
do they make a repair kit?

 

[Don S]

Re: I need to convert mando alternator to delco

thanks don, just what I needed. the spade conector does not get used though huh?
anyone know where i can get one of those plugs for the alternator?
do they make a repair kit?

Merc doesn't use that connection, Volvo used it for the carbed engines to operate the automatic choke for the carb.

Might check with your local starter/alternator/electric motor shop. I would bet they can get you one of those connectors.

 

[stang32]

Re: I need to convert mando alternator to delco

yeah, thats what i am thinking, i just wish i new what year/make model cars used this alternator, these auto parts store guys these days are about as helpful as tits on a bull
i will have to go see one of the rebuilder shops