Having an Alternator Rewound...

[FIMPALASS 10+ year member]

All the casing does is ground out the bridge rectifier and Voltage regulator to the motor everything else is isolated from the casing with rubber.

 

[AudioDave]

Why yikes

Ask around - - My Blazer had a 105 too and I wanted it at 240 and the case must be new because nothing over 160 fits - its too much winding etc. It also takes a special power assembly cable. Dont let um BS you.

 

[MikeyF 10+ year member]

I definitely appreciate all the help. I understand completely would it would be too much winding in that small of a case, makes perfect sense. Wondering if I can maybe pick up a blown bigger alternator, and have it rewound. If not, just going to have to scoop out the money for an actual 220-250amp alt. Thanks for all the help so far. By chance would anyone know what size alt I would have to pick to have it rewound to a 220-250amp?

 

[ellocojorge 10+ year member]

Here is the link. I got the 240a rebuild kit for my cs144. High Output Alternators - Alternator & Starter Repair Kits - Alternator Parts

how hard is it to rebuild an alt?, any special tools required?

 

[AudioDave]

YEs it takes a specific amount of coil wire, graphing it, magnetics etc and a cable. Its easier and safer to just get one done right.

 

[yischrax 10+ year member]

biggest problem with just rewinding a alt is usually if I am not mistaken you will need to change out pulley to get as many amps as you are looking for at idle. Though the largest failure to just rewinding your alternator and not buying one from HO Alternator, Dc Power,or Ohio Generator or other quality alt. is because they are using the stock rectifiers and regulator they are not made to control that much amperage and die other times people will put the smaller pulley so the alt will spin faster like it needs to make the amperage at idle and the bearings are old and go bad from the higher rpm's it is spinning at. I have also know friends who have had them rewound and didn't have any problems but they were only getting them rewound to a extra 25% or so over stock as that will be safe and running a 4 channel and 1500 watt sub amp. I would say it all comes down to you get what you pay for.

 

[ellocojorge 10+ year member]

YEs it takes a specific amount of coil wire, graphing it, magnetics etc and a cable. Its easier and safer to just get one done right.

i meant buying a when buying the kit from springfield electric( link on up post)

 

[AudioDave]

Uh ya thats what I said. Bte the conversion is 14A per 100 watts

 

[AudioDave]

Yes or having one done by the link I gave because they do not do parts.

 

[BassAddictJ 5,000+ posts]

rewound alternator = shorter lifespan of said alternator

dont be cheap, pay the extra $$ and buy a new or like new HO alty for your car. trust me, it's worth it.

 

[FIMPALASS 10+ year member]

Ask around - - My Blazer had a 105 too and I wanted it at 240 and the case must be new because nothing over 160 fits - its too much winding etc. It also takes a special power assembly cable. Dont let um BS you.

Well I did it and it fits just fine. I am very impressed. I did have to change the pulley but it was only like 18 bucks. And with the set up in my sig I stay above 13.8v @ idle.

 

[FIMPALASS 10+ year member]

how hard is it to rebuild an alt?, any special tools required?

I don't know about yours, but mine was fairly simple. But I am good with cars and do all the work on my car.

 

[rumple4skin 10+ year member]

its all in the case, you cant get enough winding in a case made to fit 105 amps, if you do it right and find a case that fits( look at the dimensions of the ho alt) get new armatures more stator winding, new bearings, good grease, new smaller pulley( again go to the ho alt for reference to what pulley you need) use your old shaft and do your big three. no really special tools just time and effort but if you do it all right it will cost about the same but end up out living all the ho alts and there warranty are ****. who needs a warranty when you made it yourself!

 

[outsideshot23 10+ year member]

Dont spends the money.. probly cant do yours as high as you would like plus you could get a brand new one for 400 or less

 

[basebalz13 10+ year member]

I wouldnt do it, The problem with that is number 1 your idle output will go to complete ****, number 2 it will be so hot inside the alt, it's only a matter of time untill you start melthing the guts.

There is a reason why companies like Mechman and DC power has risen to the top, over companies that just "re-wind" their alts to achieve higher output.