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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, Apr-14-2018, 03:51:03 PM   #1
midnighted
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Default Longer radiator screw

I'm replacing my CSF radiator due to a leak on the side core. I got a replacement CSF radiator and I am having the same issue I did with the previous one.

When mounting the radiator and a mishimoto fan bracket, I can't mount both at the same time. The screw for the passenger side is too short and constantly pops out if I do. So I just mount the radiator and have the fan held in with the two bottom screws and a top lip that comes with it.

Does anyone know where I can source a longer screw for that side?



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Old Sat, Apr-14-2018, 04:28:55 PM   #2
robgill
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Default Re: Longer radiator screw

This is the longer screw.

It's just a self tapping screw, you can probably find something close enough at Home Depot.
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Old Sat, Apr-14-2018, 05:00:11 PM   #3
midnighted
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Default Re: Longer radiator screw

Quote:
Originally Posted by robgill View Post
This is the longer screw.

It's just a self tapping screw, you can probably find something close enough at Home Depot.
Right that's the one I'm using, it just isn't long enough to run through both the radiator and fan bracket

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Old Mon, Apr-16-2018, 09:02:00 PM   #4
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Default Re: Longer radiator screw

Is the CSF and Mishimoto bracket considerably thicker, where it's obvious a longer-than-stock screw is required? I haven't installed either of those yet, but it seems like it would be a common issue. Sorry if this sounds silly, but are you sure there's no mixup with the screws at the other mounting points(I'm pretty sure I've done this once)?
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Old Tue, Apr-17-2018, 03:57:51 PM   #5
midnighted
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Default Re: Longer radiator screw

It appears to be slightly more thicker. I can get it to screw in, but there isnt enough threads for it to catch completely, so it'll just pop out with little force if I use the original screw with both the rad and fan bracket. And it is the longer screw that is normally used for the passenger side.
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Discussing Longer radiator screw in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)