Poor man's method to better belt wrap on an fbody
01-21-2011, 12:18 PM
#241
I search and found same thing, that pulley dosent last very long, vortech lists differant pullies on their website. Im really leaning towards taking my 6-rib idler and having the lips machined off if that dosent pan out I searched through dayco catalog part number (89165 ) is what I found, can some double check catalog
Just weighing my options, Damn it sucks to be cheap
Again Chevy chads specs are good, I just feel the factory idler is not wide enough. If you have a procharger then this mod is a must unless you have aster's or sdce tensioner. I wanted to do asters but the price didnt sit well with me
Just weighing my options, Damn it sucks to be cheap
Again Chevy chads specs are good, I just feel the factory idler is not wide enough. If you have a procharger then this mod is a must unless you have aster's or sdce tensioner. I wanted to do asters but the price didnt sit well with me
01-21-2011, 12:21 PM
#242
Just to set the record straight, the stock fbody idler is Gates part# 38041 and here are the specs for it:
ID: 17mm
OD: 76mm
width: 30.5mm
The 89007 pulley you're about to run out and get has these specs:
ID: 17mm
OD: 76mm
Width: 31mm
I highly suspect you will be disappointed when you get it home and you find out that you just wasted money on 0.5mm. That is the same thickness as the small mechanical pencil lead..
And FYI, gates specs on their belts say they are 28mm wide. So dont sit there and tell me that the stock idler wont work when I have proven it will. You need to line it up correctly, which apparently is a struggle for you because you cant follow simple directions. I've spelled out in this thread exactly how to do this mod. Why you did it differently is beyond me. Why you were surprised at your results baffles me as well.
ID: 17mm
OD: 76mm
width: 30.5mm
The 89007 pulley you're about to run out and get has these specs:
ID: 17mm
OD: 76mm
Width: 31mm
I highly suspect you will be disappointed when you get it home and you find out that you just wasted money on 0.5mm. That is the same thickness as the small mechanical pencil lead..
And FYI, gates specs on their belts say they are 28mm wide. So dont sit there and tell me that the stock idler wont work when I have proven it will. You need to line it up correctly, which apparently is a struggle for you because you cant follow simple directions. I've spelled out in this thread exactly how to do this mod. Why you did it differently is beyond me. Why you were surprised at your results baffles me as well.
01-21-2011, 03:32 PM
#243
Well maybe I got a smaller idler by mistake, I ordered from napa online.
Here is what I came up with today, now I want to take back apart and put washers on bracket side. pics were taken laying on my back in the street with a small jack(2ftoff the ground) I cant fully extend my arms under car so the angles in the pics look weird
Here is what I came up with today, now I want to take back apart and put washers on bracket side. pics were taken laying on my back in the street with a small jack(2ftoff the ground) I cant fully extend my arms under car so the angles in the pics look weird
Last edited by pdasterly; 01-21-2011 at 03:42 PM.
01-21-2011, 04:12 PM
#244
Chad,
You gave me a part# earlier for a pulley of 36220...but I see you listed 38041 later on. I just wanted to make sure, but I believe the 38041 is what is needed for an 8 rib.
36220 maybe can be used with a six rib setup? Not sure...any way as always thanks for this awesome thread.
You gave me a part# earlier for a pulley of 36220...but I see you listed 38041 later on. I just wanted to make sure, but I believe the 38041 is what is needed for an 8 rib.
36220 maybe can be used with a six rib setup? Not sure...any way as always thanks for this awesome thread.
01-21-2011, 06:01 PM
#245
Just got back from short drive, everything looks great. I even got under car while running. Pushed her real hard, belts seem fine. Thanks for everyones time and frustration. Time for a retune
01-21-2011, 07:08 PM
#246
Well I'll be damned, I guess there are 2 different sized idlers. My mistake, sorry for the confusion I caused anyone. The one I have is most definitely the wider one. I guess pdasterly had the smaller one. I would not have thought there were 2 different ones that are that different in width. I wonder why that is.. hmm weird, glad we got this all out in the light. And glad pdasterly got his setup working.
01-21-2011, 09:04 PM
#250
No problem man. The stock fbody idler puley is 3" (its what Im using). Its like $24 at Oreilly. Part Number: 36220
***edit, correct part number for the wide idler to be used for the 8 rib is 38041 and its $41 from Oreilly***
Apparently, there are 2 different ones as found out by pdasterly on pages 12-13 of this thread. My apologies for the confusion.
***edit, correct part number for the wide idler to be used for the 8 rib is 38041 and its $41 from Oreilly***
Apparently, there are 2 different ones as found out by pdasterly on pages 12-13 of this thread. My apologies for the confusion.
My handwriting is bad, someone please come up with a new procharger inlet hat
Last edited by pdasterly; 01-21-2011 at 09:23 PM.
01-24-2011, 11:35 AM
#251
Okay this is to clear up the confusion. Dayco lists 1st design and 2nd design in their catalog. The 1st design is what you need #89007 (31mm) or #89059 (28mm) which is Gates #38006. The Dayco 2nd design is #89159 which is the Gates #38041 is wrong its only 26mm wide.
01-24-2011, 12:47 PM
#252
Their website also shows that 38006 is 30.5mm as well..
Also, the 38006 shows its about half the weight of the 38041 for some reason.. They both have the same dimensions, and they are both made of steel.
Last edited by ChevyChad; 01-24-2011 at 12:53 PM.
01-24-2011, 01:32 PM
#253
Just went thru the Gates website, and found all these candidates that would probably work:
P/N----OD----Width
36091...74.....39.25
36092...74.....46.25
36095...74.....33.0
36165...74.....57.0
36173...70.....33.0
36174...70.....33.0
36201...76.....38.0
36269...74.....42.7
(All are 17mm ID)
P/N----OD----Width
36091...74.....39.25
36092...74.....46.25
36095...74.....33.0
36165...74.....57.0
36173...70.....33.0
36174...70.....33.0
36201...76.....38.0
36269...74.....42.7
(All are 17mm ID)
01-24-2011, 01:37 PM
#254
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well i got a pulley from napa the other day which is part number 36227 its 29mm wide and is almost the exact size of the belt i found another pulley from them that is a hair wider the part number on that one is 38023 the only thing is i think that pulley is a plastic one does anyone know if it will hold up?
