I wouldn't say they are junk. Plenty of other people's BF bearings last a long time. I doubt the one I got from Orilley's is any better than the one that is in the pulley.
What is it with BilletFlow idler pulleys!!! (Videos inside)
- Thread starter K-Dubb
- Start date
I wouldn't say they are junk. Plenty of other people's BF bearings last a long time. I doubt the one I got from Orilley's is any better than the one that is in the pulley.
The bearing is too tight - it's the bearing.
Ok, I think I might have it figured out. I think the belt is too tight. I pushed down on the tensioner with it on, and the noise went away.
It is weird though cause this is the same belt that was on it when I bought it, and the previous owner did not have any noise. I am also using the recommended belt size from here:
Belt Selection Guide
K080745 is the one I am using (2.93 with 100mm idler).
I did notice when I tried a new belt before (when the bearing was actually bad), the new belt seemed longer than the one on there even though it was the same brand and model.
It is weird though cause this is the same belt that was on it when I bought it, and the previous owner did not have any noise. I am also using the recommended belt size from here:
Belt Selection Guide
K080745 is the one I am using (2.93 with 100mm idler).
I did notice when I tried a new belt before (when the bearing was actually bad), the new belt seemed longer than the one on there even though it was the same brand and model.
maybe the new belt needs to strech out alittle :shrug: but it looks like you may be on to something.
+1. I have 50K+ miles on my BF idlers without issue!
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I used a stethoscope and i can hear the whine between the 100mm and the 2.93. When I push on the tensioner, which does not have much play, it goes away.
Actually I am still running the old belt. I took the new one back when I found that I actually had a bad bearing as I thought that was the entire issue (the whine in the videos actually used to be louder).
I hope billetflow is good, I just purchased from lethal, makes me want to trade them for metco, but I hate polished....hoping it works out for me!! How long do belts usually last with an upper and idler?? I have about 10k mi. On it so far, idlers just started squeaking last week.....belt still looks great, assuming its stretched out some by now, no slip or boost drop off, been too nervous to really boost it though since the squeak started, don't want grenaded idlers of any sort.
Billetflow make some great products. I have the Billetflow idlers and they have been trouble free. Not a sound out of them with the 2.3 Whipple with a 3.00 pulley. I remember not so long ago when Billetflows were what everyone went with. Sometimes bearings go out and need to be replaced that doesn't mean that the quality of a pulley is bad. Dougs customer service has been great and he has always stood behind his products. Sometime he went above and beyond to help someone out. I think you will be more than happy with your Billetflow idlers.
I have their IRS Brackets installed....it was by far one of my favorite mods...great quality and engineered extremely well. Pulleys and new bridge should be here tomorrow
The quality of the pulley is awesome, its the bearing thats suspect.
Here is where my belt tensioner is at.
I think your on to something with the belt. The line/notch on the tensioner should be a little on the right side of center. Yours is all the way maxed out to the right. Heres a picture of mine. I have a 2.8 pulley with BF 4 piece set. I'm also running the same size belt as you a 74.5 inch. And your running a 2.93. You may need to go atleast 1/2 inch bigger if not more.
Can you circle the line/notch you are refering to in your pic please?
I'm a noob with photoshop. But It's the line directly left of the center bolt. I believe that is whats used for a guide to go by.
Favorite mod? Why?
My suspicions about my belt length were correct. The K080745 belt that was on the car is actually about a half inch shorter than a normal K080745. I got a new one, and the tensioner is in a better spot. The whine is still there slightly, but I can live with it since If I go any longer, I am afraid it might slip. It will probably stretch over time and go away completely.
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