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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 11-13-2012, 10:40 PM   #21
Nerdy46
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Junkyard engine.
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Old 11-13-2012, 10:52 PM   #22
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Dang, the boat anchor pansies are out in force! No nads.

Tear the head off and take a gander (look).

If the block is flat and you decide to go the HG route, DEFINITELY take an extra 2-3 hours and do the 24.5mm Time Serts.

Just did the same job on my daughter's 2000 323i.

Take the head to a good machine shop and see what needs to be skimmed. IMHO, if more than 13-14 thou, go replacement head or replacement engine.

Replace all exhaust guides and recut/grind the valves. If up to 6/7 thou to come off the head, use regular 0.7mm HG, if 8-14 then used oversized 1.0mm (12 thou fatter) HG.

All new gaskets, all new vacuum pipes. DO THE VANOS seals.

Good luck.

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Old 11-14-2012, 05:55 AM   #23
pawelgawel
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Save yourself the headache!

replace the engine... agham s54 agham...

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Old 11-14-2012, 07:26 AM   #24
Valkyn
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Originally Posted by pawelgawel View Post
Save yourself the headache!

replace the engine... agham s54 agham...

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The engine from what years and models would be a direct swap into a 2000 328i?
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Old 11-14-2012, 11:33 AM   #25
pawelgawel
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s54 is an M3 engine.. any e46 engine will fit, but s54 will require more items for proper operation.

Id use m54 from a 330 with low miles.

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Old 11-14-2012, 11:39 AM   #26
Brinkley
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I would attempt to source a 328 motor. 99 & 2000. car-part.com is a good source. Failing that, I think Z3s also had m52tus, depending on the year. Remember your car should be drive by cable not wire, one thing to consider if you want to get a newer motor such as from a 330.
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Old 11-14-2012, 11:56 AM   #27
WDE46
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Originally Posted by Brinkley View Post
I would attempt to source a 328 motor. 99 & 2000. car-part.com is a good source. Failing that, I think Z3s also had m52tus, depending on the year. Remember your car should be drive by cable not wire, one thing to consider if you want to get a newer motor such as from a 330.
He can reuse the M52 throttle body on the M54. Flashtwosix has a whole thread on putting a M54 3 liter in a 323i.
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Old 11-14-2012, 11:59 AM   #28
Brinkley
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Indeed. Just pointing out that there are some differences between the motors to him.
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Old 11-14-2012, 12:44 PM   #29
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it just blows my mind in this day and age that people are stupid enough to keep driving after something like this happens. My sister did it about a year ago, she's a F**n idiot too.
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Old 11-14-2012, 10:33 PM   #30
Valkyn
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Spent a few hours after work the last two days messing with it. Pulled the valve cover off and everything looks okay under there:



Pulled the intake manifold off tonite...all I have to say is those Germans are damn crafty with attaching **** to the bottom of things where its next to impossible to get to. All the PCV lines were super brittle and the PCV itself and two lines broke while removing them so I'll be replacing all that stuff.



And it looks like it has had a coolant leak where this steel line goes into the cylinder head for awhile now



Head comes off tomorrow nite, going to make a tool to take the head bolts out at work.
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Old 11-15-2012, 07:14 PM   #31
pawelgawel
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even then.. you won't be able to tell if the head is damaged... you'll need to have it leak checked.. might be warped.

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Old 11-16-2012, 04:53 PM   #32
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why not just do an engine swap? You got the car for dirt cheap so spend some money on putting over the top. Get an M54B30, put some bolt ons software to make it sweet. Or go a little crazy and put an S54 to make it a 332i. No point chasing issues on that toasted motor. Scrap it and start fresh. You can spend $$$ and get it back to being a stock 328i with a haunting past that will always give you issues. Remember that the E46 non-M has an aluminum block which warps real fast when overheated. Or you can spend the same $$$ and build yourself a much faster and better E46 rather than another boring 328.
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Old 11-16-2012, 08:42 PM   #33
Valkyn
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Well what do we have here...


Oh shi...got bigger problems.



the 3 and 5 pistons have holes burnt in them. So I have to admit it you all were right I was wrong it's a boat anchor.

So now the question is what new engine should go in it. I like Shahbaz's ideas.

Last edited by Valkyn; 11-16-2012 at 08:42 PM.
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Old 11-16-2012, 08:49 PM   #34
Nerdy46
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OUchies.
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Old 11-16-2012, 08:58 PM   #35
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check my thread on head replacement; I had overheated ---> cracked head ---> hydraulock engine, but end up DIY (alone) with a used head (ebay) and things are still working fine.

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Old 11-16-2012, 09:00 PM   #36
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Well that explains the oil loss. Bummer because pistons look really clean otherwise. Was probably a pretty healthy engine aside from the headgasket and subsequent catastrophic failure.
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Old 11-16-2012, 09:07 PM   #37
Valkyn
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I tried doing the head bolt torque test and one bolt pulled the threads, only had to try 3 before one pulled it.

What does a rebuild typically cost?
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Old 11-16-2012, 09:07 PM   #38
Sapote
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Quote:
Originally Posted by Valkyn View Post
Well what do we have here...


Oh shi...got bigger problems.



the 3 and 5 pistons have holes burnt in them. So I have to admit it you all were right I was wrong it's a boat anchor.

So now the question is what new engine should go in it. I like Shahbaz's ideas.
\

whoa! those pistons look so clean!!! are they that way or had been cleaned? It's amazing that the pistons were melted by no valves collision!!! E46 is a great designed engine --- just the engine's top-end and bottom end alone.

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Old 11-16-2012, 09:34 PM   #39
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I didn't clean them, they all look that clean tho.

I still don't understand why I wasnt getting compression on any cylinders when the head gasket looked good everywhere but by number 6 and all the other pistons looked good.

The head isnt obviously warped and looks okay.
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Old 11-16-2012, 11:27 PM   #40
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No matter how you want to look at this, the cheapest way to go is a 2k used motor. Anything else will be more interesting and cost more, and I always like the idea that now you would have all these spare parts from the blown motor, (depending on what you'd have to swap onto the new one
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