crxaddikt

car is 90 crx si,

i am about to get my A/C fixed so its working again, but was missing the A/C idler pulley, so i got a new aftermarket pulley, and ordered the metal collar thing, the washer and locknut too.

i put it on in the correct order as shown in the parts diagram on majestic honda,

i put the gold collar piece inside the hole of the pulley on the flat sealed side of the pulley, and put the flat sealed side of the pulley facing the bracket and motor side, and put the 10mm washer on the side facing outward, and then over that put the big wide washer (dust shield), and then the locknut, and adjusted so the belt was tight, and tightened the locknut down good . . .

but once i started the car and it started spinning, the locknut comes off ! ! !, along with the dust sheild and smaller washer ???

why is the locknut loosening and coming off once the pulley starts spinning ???

i don't understand ??, i don't want the pulley to come off, cause thats what happened to my old pulley, and was the reason i had to buy another one !

do i need to tighten it more or something ?

someone said on another post, that for the new type of idler pulleys, or aftermarket ones, you don't need to put the dust shield for them anymore, is that true ?

Tyson

collar with flange (wider diameter) facing towards engine/bracket (i think this is your problem)
pulley
washer (easily forgotten or misplaced, common fault)
dust seal
nut

crxaddikt

thanks for posting up the parts diagram, now i can describe how i have it referring to the part numbers. . .

when i say collar, i meant #18, and i have it just the same way its shown in the diagram, pressed into the pulley but facing the bracket / engine side, and i have #21 on the outside right on the pulley, i'm not totally sure, but is part #21 just a thin washer with a 10mm hole in the center about ? thats what mine looks like

one thing i am not totally sure of is which side of the pulley faces bracket or away ?

cause can't tell from the diagram picture?, one side of the pulley is all flat, and the other side has a gap around that goes inward, sort of like an outter lip around the bearing part, i actually bought an aftermarket pulley, but its like that also.

but i think the flat, sealed side of the pulley faces the bracket and motor side, and the side of the pulley with that space that goes inward around the bearing, faces outward toward the motor mount ? am i right ?

crxaddikt

i went out and messed with the adjusting bolt again, and took the dust shield off, and tightened the belt even tighter than i did before, where it has barely any slack, and then tightened the locknut really tight, and i started the car up and its all good now, and the locknut is staying on without falling off, and also the belt & pulley is'nt making any noise, it just sounds the same as the other drivebelts, normal sounding.

so the noise might of been caused from my belt being too loose and the locknut coming off might of been something to do with the dust shield being on and spinning it off ? or just the locknut not being tight enough ?

or maybe with the aftermarket newer pulley that i have, you are'nt supposed to use the dust shield with it ? cause thats what someone else said on a post, cause it seems like when i took the dust shield off, then the locknut did'nt loosen and fall off when the pulley started turning ?, when you tighten the locknut, its being tightened against the pulley, or against the washer or dust shield thats over the pulley, and the locknut has a washer attached to it that spins, and that has to be able to spin around with whatever its tightened against, and maybe it makes it hard to spin when its tightened against the dust shield since its wide and bigger ?, causing friction and forcing it to turn loose and fall off ? and maybe once i take that off, that its able to spin easier when its just tightened against the 10mm washer ? (thats just what i assumed might of happened)

Tyson

it shouldnt be that "thin". its a little thicker than a normal washer if i remember correctly. it needs to be thick enough that the dust shield doesnt touch or scrape the pulley.

theres a pretty simple check you can do, just assemble it in your hand and pinch it together and spin it.

crxaddikt

actually i remember when i put the parts together, the dust shield does touch and go against the pulley, (i put the dust shield so the little part that comes out in the middle is going out towards the outter side, so it cups over the washer sort of, thats how it shows it in the pic diagram). when i hold the parts together in my hand and spin it, it spins fine, but the dust shield does touch against the pulley over the washer.

your saying that that washer supposed to be thick enough where it fills the space between the dust shield and the pulley while the dust shield is in place ?, where it sort of has some space between them ? where just the outter edge around the dust shield touches it ?

i was pretty sure i was using the right washer, but not totally sure, i just know i ordered the locknut, collar, & washer from majestic honda and a new aftermarket pulley off rock auto.

anyway it does'nt matter about how the dust shield goes, since i ended up removing it, cause i found that when i did'nt have the dust shield, that i did'nt have that problem where the locknut spins and loosens, falling off, and when no dust shield is there, and just the washer, the locknut stays put. and i read newer or aftermarket pulleys have no need for using the dust shield, maybe cause they are sealed better or something,

i'm not sure if taking the dust shield off fixed that problem, or if maybe i just adjusted the belt better and tightened the locknut a lot tighter so it could'nt come off ?, but it seems ok for now, cause its spinning smooth without noise and is lined up right.

crxaddikt

the whole reason i'm putting the A/C pulley back on is i'm about to get my A/C fixed and working again by a mechanic friend of mine, last time he was working on it he got so it was blowing cold air, but not consistently, something with the kick on and kick off thing while at idle, he has to figure out, but he said its nothing big.

a little off subject, but i was thinking earlier if there was any type of mesh vented seat cover thing that goes along the part of the seat your back is against, but that has little cooling fans inside of it, that cools your back, so your back is'nt all hot and sweaty in the middle of the summer ?, or even without cooling fans in it, it would be good to just have some sort of mesh vented pad that is about 1/2" - 1" thick, so theres a vented gap between your back and the seat, so air can flow through that area, and your back would be a lot cooler and not as sweaty probably.

i have an office computer chair that has a vented mesh back which a neighbor got rid of putting it on the curb, and i might take it apart and use that backing material to strap to my car seat or something