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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 Mon, Mar-20-2017, 12:22:21 PM   #21
schoonerm3
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Default Re: RACP cracking / separation

Any pics of the front mount upper welds?
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Old Mon, Mar-20-2017, 01:30:04 PM   #22
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Default Re: RACP cracking / separation

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Originally Posted by bigjae1976 View Post
I love the garage walls...are you in the basement of a medieval castle or something?
Ha, too funny. That was the first thing I noticed too! Some of that hard to find REAL stone and not recycled left overs.

GL with the RACP ops Flow
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Old Mon, Mar-20-2017, 02:08:36 PM   #23
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Default Re: RACP cracking / separation

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Originally Posted by jdev View Post
His might not be that bad yet, but I'd definitely inspect the tops of the front mounts and reinforce those welds if I were him. Yours had cracks around the spring perch if I remember right. He might not have that yet, but I agree he likely has other spot weld stress in the floor next to the wheel arch.

Some general advice for everyone. Buy and use crack locating dye. I thought my front left was ok, but just happened to see a crack in the right light. The cracks can be longer than you see with your eyes as well.
What's that crack locating dye look like? And how do u use it to check for cracks?
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Old Mon, Mar-20-2017, 02:28:56 PM   #24
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Default Re: RACP cracking / separation

In the case of these minor cracks and installation of vince bar, will you need to repair these cracks? Will the vince bar serve as a repair itself and simply stop them in their tracks?
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Old Mon, Mar-20-2017, 02:33:48 PM   #25
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Default Re: RACP cracking / separation

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Originally Posted by Kdubski View Post
In the case of these minor cracks and installation of vince bar, will you need to repair these cracks? Will the vince bar serve as a repair itself and simply stop them in their tracks?


You Have to repair themBefore you move forward with the install or during the install Of the vincebar.
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Old Mon, Mar-20-2017, 02:42:28 PM   #26
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Default Re: RACP cracking / separation

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Originally Posted by 0-60Motorsports View Post
You Have to repair themBefore you move forward with the install or during the install Of the vincebar.
repair in what way? Would drilling at the beggining and end of the crack, and welding over the crack suffice?
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Old Tue, Mar-21-2017, 03:40:53 AM   #27
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Default Re: RACP cracking / separation

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Originally Posted by Kdubski View Post
repair in what way? Would drilling at the beggining and end of the crack, and welding over the crack suffice?
Yes. Drilling at the beginning and end of the crack, and welding over the crack will repair the crack as part of either Redish Motorsport / Turner Motorsport Plates install and/or VinceBar / CMP Engineering Bar installs.
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Old Tue, Mar-21-2017, 07:54:52 AM   #28
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Default Re: RACP cracking / separation

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Originally Posted by kokgo20 View Post
What's that crack locating dye look like? And how do u use it to check for cracks?
start here: https://en.wikipedia.org/wiki/Dye_penetrant_inspection
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Old Wed, Mar-22-2017, 02:15:30 AM   #29
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Default Re: RACP cracking / separation

It looks like you caught it early enough that you won't have to fully replace the RACP. Good luck
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Discussing RACP cracking / separation 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)