procharger hitting alternator pulley
procharger hitting alternator pulley ok i have run into a issue. i am installing a d1sc kit and got the charger mounted up and the shaft of the prochargers is touching the alternator pulley. i do have a 200 amp alternator that i put in last year. the way i see it is i either have to grind the front of the alternator pulley to make some clearance or try to find a smaller pulley. all i can find is over drive pulleys that i dont think will help. how much clearance do i need between the alt and charger?.
I ran into this issue when doing a pulley swap. Turns out they had sent me the wrong pulley. Can you post a pic of the pulley? The one that fits on my car has a very short shank, the other one was a good bit longer.
ok the shims are .100 and thiers 2 in. its not the pulley itself rubbing its the washer infront of the pulley. the part thats in green in this pic.
and heres a pic of the 2 shims. and space behind the pulley
and heres a pic of the 2 shims. and space behind the pulley
i shot up to the parts store and the parts guy measured another alternator pulley came up with 2 3/8 i just measured my pulley and came up with 2 1/8. so my pulley is slightly smaller so now im have not idea what the issue is.
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That's the only pulley I have it came on the unit when I bought it. I'm ordering another pulley tonight. I don't have the original alternater to compare but if it was the alternator being physically bigger wouldn't that have caused alignment issues with the serp belt.
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On The Tree
Joined: Jan 2010
Posts: 112
Likes: 1
From: Olathe, KS
The problem is the bigger/different alternator, I ran into the same problem trying to swap to one and had to swap back to a standard size alternator. I tried multiple different pullies on the blower and alternator and still couldn't get the needed clearance.
If I recall correctly the higher amp alternators are made from the "B4C/Police" alternator housing and it's a little larger than the stock one. Not a problem for N/A cars at all but the Procharger folks will have clearance issues.
Hope this helps - if I can find my thread in here somewhere I'll edit this post with a link...
EDIT : My post -
https://ls1tech.com/forums/5865017-post31.html
Thread :
https://ls1tech.com/forums/generatio...harged-up.html
Rob (Bad30th)
If I recall correctly the higher amp alternators are made from the "B4C/Police" alternator housing and it's a little larger than the stock one. Not a problem for N/A cars at all but the Procharger folks will have clearance issues.
Hope this helps - if I can find my thread in here somewhere I'll edit this post with a link...
EDIT : My post -
https://ls1tech.com/forums/5865017-post31.html
Thread :
https://ls1tech.com/forums/generatio...harged-up.html
Rob (Bad30th)
The problem is the bigger/different alternator, I ran into the same problem trying to swap to one and had to swap back to a standard size alternator. I tried multiple different pullies on the blower and alternator and still couldn't get the needed clearance.
If I recall correctly the higher amp alternators are made from the "B4C/Police" alternator housing and it's a little larger than the stock one. Not a problem for N/A cars at all but the Procharger folks will have clearance issues.
Hope this helps - if I can find my thread in here somewhere I'll edit this post with a link...
EDIT : My post -
https://ls1tech.com/forums/5865017-post31.html
Thread :
https://ls1tech.com/forums/generatio...harged-up.html
Rob (Bad30th)
If I recall correctly the higher amp alternators are made from the "B4C/Police" alternator housing and it's a little larger than the stock one. Not a problem for N/A cars at all but the Procharger folks will have clearance issues.
Hope this helps - if I can find my thread in here somewhere I'll edit this post with a link...
EDIT : My post -
https://ls1tech.com/forums/5865017-post31.html
Thread :
https://ls1tech.com/forums/generatio...harged-up.html
Rob (Bad30th)
how much clearance do i need between the alternator and charger?. how much will the pulley move from bracket flex?. i could probabaly chamfer the edge of the alternator pulley to gain the clearance just worried about bracket flex.
thats what i was figureing. so switching to a 180 amp solved your problem?.
how much clearance do i need between the alternator and charger?. how much will the pulley move from bracket flex?. i could probabaly chamfer the edge of the alternator pulley to gain the clearance just worried about bracket flex.
how much clearance do i need between the alternator and charger?. how much will the pulley move from bracket flex?. i could probabaly chamfer the edge of the alternator pulley to gain the clearance just worried about bracket flex.
If I can I'll snap a pic.
Cheers -
Rob (Bad30th)
i am useing the longer stand offs on both the mounting locations. i am useing the shorter spacer where the bracket mounts to the idler. if i use the longer one it seems to tilt the top of the bracket out at a angle.
i did alittle grinding today on the alt pulley. just took of a tiny bit and they are no longer rubbing but i dont think i could fit a piece of paper in between the pulleys. the washer on the front of the charger is whats rubbing. thats a pretty thick washeer could i change that for a thinner whasher with out any issues. also could i use 1 washer on each of the stand offs to space the bracket out a tiny bit. my thought is if i can get a fraction of a inch bu grinding the pulley then another fraction by spacing out the bracket and use a thinner washer it all might ad up to haveing enough room. hopefulley with out throwing off the belt alignment.
im gonna shoot up to the parts store and pick up a stock replacement alternator and see how that fits. but due to the stereo i run i kind of need the bigger alt.
i did alittle grinding today on the alt pulley. just took of a tiny bit and they are no longer rubbing but i dont think i could fit a piece of paper in between the pulleys. the washer on the front of the charger is whats rubbing. thats a pretty thick washeer could i change that for a thinner whasher with out any issues. also could i use 1 washer on each of the stand offs to space the bracket out a tiny bit. my thought is if i can get a fraction of a inch bu grinding the pulley then another fraction by spacing out the bracket and use a thinner washer it all might ad up to haveing enough room. hopefulley with out throwing off the belt alignment.
im gonna shoot up to the parts store and pick up a stock replacement alternator and see how that fits. but due to the stereo i run i kind of need the bigger alt.
