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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 Fri, Apr-14-2017, 01:57:45 AM   #11
Monte0704
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Default Re: Picked up a blown-engine project E46 M3

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Originally Posted by BergA View Post
Holy smokes, this forum has a lot of traffic!



Do you guys really think this thing is worth $9500 when it's in running condition? If so, I'd have no hesitation doing a proper rebuild.

Youinreverse, thanks for the pricing information. I concur with most points -- I'm expecting to not replace any pistons or rods, and also would not likely do any machining beyond polishing the crank. Don't we all have dual-mass flywheels which can't be machined?
I spent 15k on one with 102k miles....

Fresh engine rebuild is a plus on these cars, as long as the rod bearings get changed, lol.
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Old Fri, Apr-14-2017, 02:08:20 AM   #12
black bnr32
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Default Re: Picked up a blown-engine project E46 M3

Hey OP, I have some head parts for sale if you need.
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Old Mon, Apr-17-2017, 05:51:28 AM   #13
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Default Re: Picked up a blown-engine project E46 M3

Had a busy weekend. Friday night was spent prepping the engine bay for engine removal. I've rebuilt an N54 and an N55, and the structure of the S54 is nearly identical. I did find the wiring harnesses simpler to remove on the S54, probably because there's fewer connections. I chose to remove the engine and transmission together, as there's only the driveshaft connected. Simpler to disconnect the flex disk than all of those bell housing bolts...

Saturday was spent pulling the engine. Nothing eventful to report; power steering pump and A/C compressor both stayed with the car (A/C still works). I did have to disconnect the steering column from the rack, which was a problem because I accidentally lost the center point .. I'm not sure if I might have added a turn. That could damage the clock spring if I'm not careful.

Engine and transmission were pressure washed once they were out of the car. It makes it so much more pleasant to work on that way. Now the engine is mounted to a stand, ready for disassembly. I like to cover my garage floor in plastic tarp to capture the inevitable and continual oil spills.
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Old Mon, Apr-17-2017, 07:11:49 PM   #14
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Default Re: Picked up a blown-engine project E46 M3

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Even in perfect running condition it's probably only worth $5-6k; there just isn't very much upside.
I disagree. clean title (?), 7/10 overall condition with rebuilt motor? I'll start the bid out at $7k and take it to the track when you finish it. I think you can expect somewhere between 7-10k pretty easily. Are you going to use the Beisan solution for the VANOS? That will be a selling point... and you'll be in there anyway.

http://www.beisansystems.com/procedu..._procedure.htm

Good luck, I'll be doing work on an M54 this summer.

Last edited by xdite396rw; Mon, Apr-17-2017 at 07:15:16 PM. Reason: added link
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Old Mon, Apr-17-2017, 07:45:40 PM   #15
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Default Re: Picked up a blown-engine project E46 M3

Nice work so far.
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Old Mon, Apr-17-2017, 11:23:01 PM   #16
BergA
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Default Re: Picked up a blown-engine project E46 M3

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Originally Posted by xdite396rw View Post
I disagree. clean title (?), 7/10 overall condition with rebuilt motor? I'll start the bid out at $7k and take it to the track when you finish it. I think you can expect somewhere between 7-10k pretty easily.
Thanks for the input. Yes, it's clean title. Good to know I can safely put ~$2k in. Generally, my goal is to make investments that are likely to pay back when I try to sell. Beasian is an excellent example of an investment that I think would entice a future buyer. In broad strokes, here are the improvements/repairs I plan to make:
  • Luk clutch/PP/TOB kit ($250)
  • Beasian upgrade/repair (~$500, but I haven't priced this out in detail)
  • Glyco main bearings ($100)
  • Polish crankshaft ($100)
  • OEM rod bearing kit ($300)
  • Wiseco rings ($125)
  • Miscellaneous gaskets & seals ($250)
  • Turner weld-in subframe reinforcement ($140)
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Old Mon, Apr-17-2017, 11:55:02 PM   #17
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Default Re: Picked up a blown-engine project E46 M3

I priced the beasian kit with everything you need to do everything....

And I mean everything that has anything to do with VANOS. It was $1000-$1100 up front, with $450 in deposits coming back to you on return. Total cost of $550-650.
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Old Tue, Apr-18-2017, 07:05:26 AM   #18
BergA
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Default Re: Picked up a blown-engine project E46 M3

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I priced the beasian kit with everything you need to do everything....

And I mean everything that has anything to do with VANOS. It was $1000-$1100 up front, with $450 in deposits coming back to you on return. Total cost of $550-650.
I priced it just now, and it looks like $470 after core charge (see below.) What am I missing?

Tonight I removed the VANOS assembly and confirmed the sheared bolts were the failure mode. Fortunately I was able to recover all the pieces! Looks like all 12 intake valves are bent -- no damage to exhaust valves. I also discovered a broken timing chain guide, which should be replaced with the Besian kit.

While trying to remove the four Torx bolts holding on the harmonic balancer, I broke a Snap-On socket. Those bolts have some serious torque. I've ordered a replacement 1/2" drive impact socket; we'll see how that does next...
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Old Tue, Apr-18-2017, 10:45:13 PM   #19
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Default Re: Picked up a blown-engine project E46 M3

Nice job so far.
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Old Fri, Apr-21-2017, 06:25:32 AM   #20
BergA
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Default Re: Picked up a blown-engine project E46 M3

Hi all,

I continued disassembly of the bottom end, and started cleaning parts. I wanted to remove the crankshaft tonight, but I'm still waiting on my replacement E14 socket to remove the crankshaft hub.

Tonight I removed the first piston and cleaned it in the ultrasonic cleaner, as well as the exhaust VANOS components. I use a 20% mixture of simple green with hot water in a typical Harbor Freight ultrasonic cleaner. Typically it takes about 20 minutes to get parts fully cleaned.

The crankshaft rod journals and main journals look very healthy. There should be no issue with re-using this crankshaft. The rod bearings, however, look like they're on their last legs. Good thing I'm replacing them!

So far I've ordered a set of replacement intake valves, Luk clutch set, and a reamer for drilling out the VANOS oil disk. Now that I'm comfortable with the crankshaft's health, I'll go ahead and make the rest of the orders.
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Discussing Picked up a blown-engine project E46 M3 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)