240sx stock alternator work on Sr20DET?

[fdo]

Hi guys,

I couldnt find any info abt this alternator question. I got my 240 recently and it is turning out to be a ** pain, I wont pass emission, one of the engine valve is blown, and now the alternator is bad. I was planning to buy the sr20det really soon, but i still need to get my car to move, I took out the alternator and i am searching for another one.. I was wondering If I buy a new alternator which is $180 will it fit on the SR20DET engine?? Is is exact fit?? Or should i simply go to the junkyard and find a used one...? BTW is there any good shop in DE or PA that can do the swap?? I Know this place that is asking for $1600, just wondering if i can get it done cheaper..

[compression]

it is rumored that the KA alternator will work on the SR of you drill out one of the mounting holes on the alternator to a larger size. I dont know the details. Remember, this is a RUMOR, dont take it for fact.

[S13240]

For a fact it will fit onto the bracket, the tensioner won't fit though so even if you had the ka alternator on there you have no way of keeping the belt nice and tight on the pulley. I say go get a junk yard alternator.

[slow s13]

I used my stock alternator if you got any skills you can get dat puppy in der no problem. I did have to do a little something with the tensioner but I got one in there, its on the inside of the bracket its harder to adjust but it works. This was a DE alternator.

[slow s13]

I found an ok pic of it.

[VitaminT]

Haha, I knew this would come up one day.

My alt. was shot when I got my clip so some rigging had to prevail to keep from buying a new alternator. Here are the steps I followed. Please ask if you have any questions.

1. You have to use the SR pulley on the KA(de) alternator. The KA pulley is 4 rib and my redtop pulley was 5.

2. I had to use the KA(again DE) alternator tensioner, but not the bracket. Can't remember now, but it seemed like the KA and SR were oposite on the way it tightened.

3. I had to grind off a lip that was build into the alternator housing that was behind the pulley. It was like a raised lip around the bearing. If you do not do this the new 5 rib/SR pulley will bind on it and the alternator will not turn once the pulley is torqued.

That's really it from what I can remember. It sound's like a lot, but if you have a spare KA alternator laying around it really can be done fairly quickly seeing as you have to take the alternator off and put it back on anyway.

One more good piece of info is that you can have your SR alternator tested at the local auto parts place (I used AutoZone), since all the plugs are the same.

I have been using my KA alternator since October when I did my swap. Never had any problems.

Hope all this helps.