!!! LET Motorsports Pulley Failure !!!
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Re: !!! LET Motorsports Pulley Failure !!!
Originally Posted by MikeR
You are correct. We just need a metric threaded stud threaded on both ends to replace the bolt. Then a nice .125" strap with a seat/washer for the bearing and you are set.
MikeR
MikeR
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Re: !!! LET Motorsports Pulley Failure !!!
Originally Posted by 70GT6
Now if we just knew someone that is great at fabbing up brackets.....
Please head up the project and find someone that could make this bracket. I'll then send it off to the machine shop and get enough made for everyone. I don't have access to the motor any longer...I drive a 135i now.
It doesn't have to be pretty, it just needs to hold up during shipping.
Re: !!! LET Motorsports Pulley Failure !!!
Originally Posted by amg-jerry
Please head up the project and find someone that could make this bracket. I'll then send it off to the machine shop and get enough made for everyone. I don't have access to the motor any longer...I drive a 135i now.
It doesn't have to be pretty, it just needs to hold up during shipping.
It doesn't have to be pretty, it just needs to hold up during shipping.
Then just need the stud & nuts - anyone know the current bolt size off hand?
Last edited by 70GT6; 11-11-2008 at 08:59 PM.
Re: !!! LET Motorsports Pulley Failure !!!
I looked into my engine bay this morning to check for any further damage other than the water pump pulley and belt. As I was inspecting each pulley (spinning them checking for damage) I noticed that they all spinned pretty easily except for the idler pulley. Although it still turns, it didn't turn freely like the other pulleys did. I had to actually grab it moderately hard and spin it. The other pullies spinned just using my fingers. I don't know if that sheds any light on this problem, but figured I'd share that. I'm wondering if the increased rotating friction speeded up the demise of the water pulley?
Last edited by BlUEMDsrt6; 11-12-2008 at 04:47 AM.
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Re: !!! LET Motorsports Pulley Failure !!!
Blue, If that pulley isnt spinning freely like the others, the bearings are going bye bye.
70GT6, I will pull mine apart this afternoon and and get the dimensions and start doing a drawing. It will be based on the current ideler I have, so if Jerry makes any changes on bearing or idler dimensions we will have to adjust. I'll see what I can do for a mock up too. That will take a little more time.
MikeR
70GT6, I will pull mine apart this afternoon and and get the dimensions and start doing a drawing. It will be based on the current ideler I have, so if Jerry makes any changes on bearing or idler dimensions we will have to adjust. I'll see what I can do for a mock up too. That will take a little more time.
MikeR
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Join Date: Jan 2008
Location: North Plains, OR
Age: 74
Posts: 5,180
Likes: 0
Received 8 Likes
on
7 Posts
Re: !!! LET Motorsports Pulley Failure !!!
I pulled my Idler pulley and got all the dimensions(I think) to do the drawing. I found some scraps that worked out quite well for giving you an idea of how the strap mounts. This is 3/8 aluminum stock, so it is a little thick. But you can see how it will fit and there is plenty of room for the strap. One pic shows the mounting points(circled in black) and then a couple of pics of a mocked up strap with the pulley.
The pulley uses a 10mm bolt, the unused mount we found is a 6mm bolt. The spacing is 3.780",center to center. The idler bearing sits about .475" lower than our strap so that would be what we need for a spacer/seat from out strap. Anyway, here is what it could look like...
MikeR
edit: here is the first pass drawing of the strap and how it fits.
The pulley uses a 10mm bolt, the unused mount we found is a 6mm bolt. The spacing is 3.780",center to center. The idler bearing sits about .475" lower than our strap so that would be what we need for a spacer/seat from out strap. Anyway, here is what it could look like...
MikeR
edit: here is the first pass drawing of the strap and how it fits.
Last edited by MikeR; 11-12-2008 at 04:11 PM.
Re: !!! LET Motorsports Pulley Failure !!!
Looking good!
Originally Posted by MikeR
I pulled my Idler pulley and got all the dimensions(I think) to do the drawing. I found some scraps that worked out quite well for giving you an idea of how the strap mounts. This is 3/8 aluminum stock, so it is a little thick. But you can see how it will fit and there is plenty of room for the strap. One pic shows the mounting points(circled in black) and then a couple of pics of a mocked up strap with the pulley.
The pulley uses a 10mm bolt, the unused mount we found is a 6mm bolt. The spacing is 3.780",center to center. The idler bearing sits about .475" lower than our strap so that would be what we need for a spacer/seat from out strap. Anyway, here is what it could look like...
MikeR
edit: here is the first pass drawing of the strap and how it fits.
The pulley uses a 10mm bolt, the unused mount we found is a 6mm bolt. The spacing is 3.780",center to center. The idler bearing sits about .475" lower than our strap so that would be what we need for a spacer/seat from out strap. Anyway, here is what it could look like...
MikeR
edit: here is the first pass drawing of the strap and how it fits.