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View Full Version : 98-02 Quest alternator onto S13 KA


kingkilburn
06-26-2015, 12:56 AM
I've been having that brake light buzzing thing for a little while now, my battery isn't getting charged properly while driving, and every hit of my sub causes all the lights to dim. Time for a new alternator.

Why not upgrade while I'm at it?


I've seen a few write ups and some speculation but not very much documentation. Hopefully this will clear some things up and inspire more to do this swap.

Link to imgur pictures. (http://imgur.com/a/9UoMk)



Here's the two alternators side by side. Kind of surprising that the OE part lasted all those hundreds of thousands of miles.

http://i.imgur.com/vINjlSr.jpg


Here you can see the difference in the pulleys themslves.

http://i.imgur.com/hzSWY7a.jpg


These two pictures show the slight difference in mounting ear height and thickness. Luckily the pivot side has the same spacing.

http://i.imgur.com/5Bl0onn.jpg
http://i.imgur.com/wD9nsJh.jpg



In order to use the original bolt on the pivot side you'll have to drill out the holes. I used a 3/8 bit but could have gone slightly bigger for an easier time. On this particular alternator I had to drill both the front and back holes.

http://i.imgur.com/EkX6GPt.jpg



Here it is all OCD masked off for drilling and planned grinding down of the tensioner pad.

http://i.imgur.com/CLP2ksL.jpg



And here it is nicely drilled with the innards free of metal shavings.

http://i.imgur.com/R75RPqF.jpg




And this is the part where I drop the ball a little. The plan was to use air tools to take off a few MMs from the front of tensioner pad. My compressor was not up to the task and I couldn't find an appropriate burr for my grinder. Being the stubborn asshole that I am I forged on ahead anyway.

After a few hours of wrestling with it I managed to push the fucker in place and get everything all lines up. So I guess you don't have to remove that material but doing so makes this swap a simple drop in affair that takes an hour or two tops.



In all that wrestling I lost track of time and wasn't able to make it to Vatozone in time to get a new belt. I'll be updating the thread tomorrow with my results after the belt is in.

kingkilburn
06-26-2015, 12:58 AM
P.S.

Getting the alternator mounted to the tensioner would have been cake if the bolt was slightly tapered on the end.


P.P.S.
Holy shit are those pictures HUGE. Sorry about that.

Wake
06-26-2015, 01:03 AM
If I'm not mistaken you need a slightly shorter belt. You may be able to make up the difference with the adjuster

kingkilburn
06-26-2015, 01:07 AM
I'm going to need a longer belt from the looks of it. Without taking that material off the tensioner pad it is tough getting it to swing in towards the block. I'll see what I can get done with some wd-40 and more patience tomorrow night.

It was 104 degrees in the shade today. I wasn't trying to hangout any longer than I had to. lol

DennisC
06-26-2015, 01:40 AM
I have done this on my ka and sr. For the ka, I spaced the tensioner bracket away from the timing cover with 3 washers on each bolt and also slotted out the bolt holes. The belt size you need is two sizes bigger than the original size.

kingkilburn
06-26-2015, 10:05 AM
I will definitely be looking into that today.

w0nderbr3ad
06-26-2015, 11:41 AM
I did the same thing Dennis did. For the belt I just made 2 trips to carquest to get the belt size I needed.

anti tyler
06-29-2015, 05:38 PM
For some reason when I tried this while at work (advance auto) it wasn't as simple.

I had to file down a good portion of the case just to get it to sit properly. I ended up ditching the idea and throwing a replacement stock alternator on.

I still have the quest one, but have modified it any more due to the fact that I have intercooler piping and oil cooler piping all in the mix to make things more difficult.

kingkilburn
07-01-2015, 05:04 PM
Finally got around to putting on a 320 length belt. Feels like I need more tension and I still have a blinking battery light and that damn buzzing and brake warning light issue.

At least the bass is consistent now. :/

kruked
07-06-2015, 07:41 PM
The belt that you need.

http://i1113.photobucket.com/albums/k512/getkruked/car/20121009_160857.jpg

The tensioner that you want.

http://m.summitracing.com/cart/add/MCH-RA4-375

Bleakley
07-06-2015, 08:32 PM
This is cake, any questions or if you need any help PM me. I did what was mentioned before and just stacked washers to space the tensioner, worked perfectly.
One of the best upgrades you can do. I grabbed the 110A alternator not knowing the 125A would work/fit. As soon as I have a need to jump up I will.

kingkilburn
07-09-2015, 10:59 AM
I don't exactly see how that adjustment rod would work without way more work than I'm trying to do for this. I think I'm going to slot the bolt holes where the tensioner mounts to the block and maybe add some more adjustment to the tensioner.

Bleakley
07-09-2015, 03:52 PM
No, don't do that. I did have to grind/slot the tensioner (inward I think) to gain a greater range of adjustment. Then I just went down to auto zone and tried a couple belts...

kruked
07-09-2015, 05:41 PM
Yep, let me know how it works out for you.

I did the exact same thing...

http://i1113.photobucket.com/albums/k512/getkruked/car/20121009_151222.jpg

It lasted for about a year before it broke at the weakened spot from the tension, (not that it was that damn tight) hot and cold temperature and vibrations.

The turn buckle w/ the heim joints was a fairly simple process, (much easier than having to grind at the oem tensioner).

Bleakley
07-09-2015, 09:00 PM
On my SR I went the joint/turnbuckle route. Bad ass move.

kingkilburn
07-09-2015, 11:07 PM
I just don't see where I would securely mount the rod on the block.

kruked
07-10-2015, 04:54 AM
You use the top bolt hole from the factory tensioner bracket. I'll take a picture of my gimmick when I get home from work today. It's simple common sense brother.

kruked
07-10-2015, 03:37 PM
http://i1113.photobucket.com/albums/k512/getkruked/Mobile%20Uploads/20150710_172659_zpsi47zmusl.jpg
http://i1113.photobucket.com/albums/k512/getkruked/Mobile%20Uploads/2015-07/20150710_172733_zpsgz554g6c.jpghttp://i1113.photobucket.com/albums/k512/getkruked/Mobile%20Uploads/2015-07/20150710_172716_zpsagxksdq0.jpg

If you have any further questions, let me know.