Hello!

Im interested in buying an Agency Power crank pulley for the box. I was wondering if people had any problems with them once they were installed using the old bolt and pin. Does the screw always get stripped and loose, or is that just sometimes?

Also, can anybody give me the official name/parts number for the crank pulley pin and bolt. I may want to buy a new one just in case.

i just got mine installed by my local tuner shop this week. no problems with it so far. plus, the shop is EXTREMELY reputable with their work and service, so if there was any problem with the bolt and pin, they would have told me.

I did not have any problems with the bolt stripping. But my pin did break, due to the pulley being installed wrong. Toyota was nice enough to replace it for me while they were in fixing another problem with the car.

Thanks for the help...how can u tell if the pin breaks?

Thanks for the help...how can u tell if the pin breaks?

I didn't know mine was broke until Toyota told me, but Lastlookcustoms on here was dynoing his car and saw his Pulley woobiling, when his pin broke(if I remeber correctly).

looks good

never had a problem with mine.

Keith

broke my pin but used a piece of hardened steel as a replacement.

how did your pins break? did you break it on the install?

indeed i did.

When this happenes does it create a high piched squeel like a belt slipping? I picked up a n undrive crank pulley off ebay and have had nothing but problems with the belt slipping. It looks to me like the belt groves are too sharp so the belt doesn't seat well. 3 belts later and I still have the same problem. Once a week I have to pull the belt out and soak it in belt conditioner, then it'll work well for about 500 miles, thenI got to do it again. It's getting way old.

if you have an underdrive pulley and ae using stock belt the chances of it being loose are much higher.

I've tried the stock, a smaller belt and the smaller Gatorback. Oddly the gatorback was the fastest to start making noise. I've even tried sanding down the peaks of the pulley trying to gain some contact area with no luck. I guess now I need a new pulley. I'm hunting now for the cheapest place to get a Unortodox or agency pulley. I don't want the Perrin. I have a chargng issue in the car where the alternaotr puts a huge load on the engine so it shudders, the underdrive pulley did fix that. Not I just have to keep the stereo blasting to cover up the belt squeeking. At first I thought it might have sheared the key but it's still there.
this is the one I bought, I'd suggest spending the $50 more for one of the others this thing looks to become my desk paperweight
http://cgi.ebay.com/ebaymotors/SCION-XA-XB-LIGHTWEIGHT-RACING-PULLEY_W0QQitemZ8006344725QQihZ019QQcategoryZ38656QQssPageNameZWD1VQQrdZ1QQcmdZViewItem

The belts not loose that's for sure. I've been using a 15 inch breaker bar to put tension on it It's so tight the belt idler should have snapped by now.

partshippers.com is doing $114 for the agency power one right now...

theres no idler pulleys on our engines

theres no idler pulleys on our engines

Then what do you call the big pulley above the A/c below the alt that just spins? :P

Evosky thanks for the link but none of those pulley's are underdriven I guess I'm stuck with orthodox?

I pulled the belt off again today for the 16th time in 2 months, within 3 minutes it was squeeking again. I was going to wait a week or two before ordering a new pulley but I guess I'll have to do it this week. :tap: I still have about an inch left on the alt braket to go before I can't adjust it any further but I think I've put so much tension on it that the 'idler' pulley is now screwed up. When I had the belt off I spun that idler and it felt like rubber rubbing on the inside of the pulley, I'da know personally I'm suprized I have not broken the alternator.

i'd run the perrin pulley no problems for me. underdriving my ac , and alternator don't sound like fun to me.

i agree with hotbox and recommend NOT underdriving. companies claim their underdriven pullies don't underdrive enough to do any damage, but any amount of underdriving introduces another risk into the drivetrain and engine drive system, which can prove dangerous for future failure. this was pretty much the same sentiment i got from my local tuner shop guys who asked me if my pulley was underdriven before they installed. of course the Agency is just lightened, so they said good and to stay away from anything underdriven.

if you do choose to underdrive, upgrade that battery ASAP.
unorthodox racing makes one for the xB, and i think NST also makes one...

The battery was the first thing I upgraded, it's got a 1000 cca Stinger dry cell. I made my own ground wire kit in hopes of that helping as well. but the stereo places a 60 amp constant load (due to my wife not understanding what any other volume is other than MAX) I have a 4 farrard cap to the amp but before the underdrive pulley when the a/c was on and the engine fan turned on the entire car would feel like it was going to die. It'd drop to about 500 rpm and shake violently for about a second then recover and go back to normal. (I have a couple posts on this) The underdrive pulley was the only thing to accually help. I can watch the voltage dip when the fan comes on. The alternator is placing such a load on the engine it effects the idle. It's very possible the alternator is messed up at this point but if it was 'burnt' it shouldn't place a strain on the motor. (I owned my own Stereo shop for 11 years and installed that whole time so I do have a bit of background in this so I understand what it's doing and why it's doing it.). I think at idle the stock alternator doesn't put out enough amps to run the car, a/c, engine fan, blower motor for the a/c, lights and a 60 amp load for the stereo. What I might do is have the alternator wound to about 160 amps (but this in turn will place a larger load on the engine, effecting milage and horse power). I've been trying to find a larger stock Toyota alternator but so far have not had much luck. I plan on under driving the alt (to lessen the load) but get a larger alt to increase the power it is putting out. The large wires in the car (usually 8 or 4 gauge) have been replaced with Stinger 4 and 2 gauge wires in hoipes of upping the current. I'm starting to give up on this car sadly (though I just put 2 bulk packs of Dynomat in it last weekend, it's quiet like a Lexus now!

ah, you have a lot more knowledge than me in these automotive electrical systems. interesting to learn about your experience though.

is that dynomat stuff heavy ? i want to deaden the sound a bit but am leery of the weight that the deadening material adds on to the car... (sorry for going off topic)

about 100 lbs for 2 bulk packs. I think the box says 61 lbs each (but each sheet is less than 7 lbs (9 sheets in a bulk pack) I wrapped the entire inside of the car though. You could get away with 1 bulk pack and deaden it alot if you don't do the doors. I also put a 21oz jute mat inbetween the dynomat and doors (the 21 oz refers to weight per yard 3 ft by 3 ft).

theres no idler pulleys on our engines

Then what do you call the big pulley above the A/c below the alt that just spins? :P

thats the water pump

Hello!

Im interested in buying an Agency Power crank pulley for the box. I was wondering if people had any problems with them once they were installed using the old bolt and pin. Does the screw always get stripped and loose, or is that just sometimes?

Also, can anybody give me the official name/parts number for the crank pulley pin and bolt. I may want to buy a new one just in case.

You have nothing to worry about, just make sure you or whoever installs it to tighten it good. You should only worry about toque specs if you have a Supercharger or turbo. Thats about it though.

theres no idler pulleys on our engines

Then what do you call the big pulley above the A/c below the alt that just spins? :P

thats the water pump

I realized that last night around 1 am laying in bed thinking, now why wuld it have a rubber like feel to it unless it had a o-ring or seal of some type, thank you for pointing that out :bow:

just part of the job i'm one of them ppl who likes to point things out that are obvious :lol:

(sorry inside joke there)

just wat stylis said. make sure its nice a tight. othwerwise you will hear squaling of the belt.

Welp...after so many years without car problems..and over a year with the lightened crank pulley, my key (pin) broke. I need to order a new one...le sigh.

When this happenes does it create a high piched squeel like a belt slipping? I picked up a n undrive crank pulley off ebay and have had nothing but problems with the belt slipping. It looks to me like the belt groves are too sharp so the belt doesn't seat well. 3 belts later and I still have the same problem. Once a week I have to pull the belt out and soak it in belt conditioner, then it'll work well for about 500 miles, thenI got to do it again. It's getting way old.

Yeah but I think this thread was to ask about the "Agency Pulley" and they do not make an Underpulley.

I have had my Agency Pulley in my trunk for a few months cause I have been fearful hearing about all the Crank Pulley problems. I have not heard ANYTHING, till now about the Agency Pulley.

Anyone else have good or bad things happen with there "Agency" Pulley??

i have the AP pulley on my box. no problems. works like a charm. toyota said the pulley was putting uneven wear on my belt though, as there is a slight belt whistling noise, but that could just be a belt needing replacement.

dont be afraid. dooo ittttt.

... I realized that last night around 1 am laying in bed thinking, now why wuld it have a rubber like feel to it unless it had a o-ring or seal of some type... Speaking of rubber, the stock pulley has rubber in it, with the whole part being called an assembly: Part No. 13407-21020, Damper Assembly, $217. You can see the circular rubber band in the assembly:
http://www.scionlife.com/tech/images/pulley_tc/PerrinPulley_0041.jpg

running the perrin pulley for a lil over a year now with no problems aside from my power steering belt breaking but their's a whole nother story to why it broke.......

With the "Agency Pulley" made differently than then Perrin.

This is what they say:

With the Agency Pulley you will see gains of up to 9 wheel horsepower as tested.

This pulley saves almost 4 pounds over the stock unit.

perrin and AP have basically the same effects afterwards. they're constructed almost to the same weight specs and such. the only differences are the aesthetic designs of the two. and AP comes in different colors.

line me up with a Xb with an AP pulley and similar mods and lets see who's faster :P just cuzz i wanna race haha

Well I installed the Agency Pulley today. All is very well so far. I feel it responding quicker in the low and high end. It's a noticeable difference all round.

It's not like putting in a darn supercharger so please don't expect unrealistic HP gains. Just a nice small upgrade.

If people like I will post nice pics soon.

yeah for the pulley, there really isn't any "hp" being gained. it's just the throttle is much more responsive now and revs come easier. that is all.

three reasons why a lightened crank pulley will come off.

1. Stock pulley has a damper, lightend pulley does not. The crank pulley bolt now has vibration to deal with that was not present befor. vibration is what makes bolts back out.

2. Red loctite was not applied to threads when crank pulley bolt was installed.

3. Faulty install. The pulley bolt has a torque spec. The torque spec is the minimum value in which that bolt needs to be tightened to, befor it backs out.

if red loctite apply to the threads, then is there way to loosen the crank pulley bolt?because the belt or other compartment will break over time.

Good job Infini, You finaly did it. hehehe Buy the way people there is only one way to make a crank pulley and call it billit. Otherwise it is cast and none of them are cast. You would be having so many problems with them falling apart if that was the case. The stock XB pully ways 3lbs 10oz. so a 4 lb lighten would be difficult. Please tell me how this is done so I can apply that to my pulleys. hehehe I gaind about 3hp/3lbs of trq at peak gains to the tires. I have heard of Bmrs that got 7-8 hp gains from a pully, but they are pushing 300+ hp. That dampener u see on the pully is for taking out a 400 hz vibration caused buy the engine running(harmonic balancer) of a sorts. Thats what I read. I was thinking about putting that on my pulleys as well. Just one more thing to do. hehehe
cya

LOL, all is well so far. I am happy with it.

Excellent, any questions hit me up. Hey any one need darker red anodizing done let me know in the next week :)

if red loctite apply to the threads, then is there way to loosen the crank pulley bolt?because the belt or other compartment will break over time.


Yes. Impact gun, chain wrench and large breaker bar.

Excellent, any questions hit me up. Hey any one need darker red anodizing done let me know in the next week :)

What do you mean need darker red anodizing?

the pulley will be anodized a darker red color

I wish I had known about this sooner :(

Infini, we have ben talking for a bit about the pullys thaught you new. I can get some serious colors done for anodizing. I am having my turbo case anodized with my next set of xb pullys here in a week or so. The collor is going to be darker red. Any one whant some thing done hit me up.
One thing though Infini if your part is anodized already it has to be striped by the anodizer first. More money. Not sure if you can sand blast it off. HMMMM
Sorry for going off topic, just needed to be said. :)

LOL I knew about your pulleys bot your anodizing

I have had problems with the Agency pulley throwing the power steering belt under racing conditions. Enough that I went back to stock.

I have also had problems with the pulley falling off. Somebody said on here that the bolt is only to be used once so it needs to be replaced, but the Toyota manual (Chain SUB-ASSY step 35) says nothing about replacing, but it does give a torque specification.
I did use Loctite.

I am looking for a stock pulley right now. If you have one to offer, PM me.

I have been really happy with my Agency Pulley :) But I have automatic and only do red light racing :)

One thing though Infini if your part is anodized already it has to be striped by the anodizer first. More money. Not sure if you can sand blast it off. )

We used to use oven cleaner to take off anodizing. :wink: