[imolarot3]

my water pump failed which caused my mechanical fan to fail which flung fan blades into my radiator and hoses. i got new everything but then when i took off my old water pump the block behind it is cracked. can't simply get new block so i may weld / jb weld / ***8230;? any advice would be greatly appreciated. 2001 M3

 

[BaliDawg]

Holy crap, that looks bad. May have a junk motor now. I am assuming you had a serious overheat?

 

[Eeavaldez]

Try welding a bead and grind it down it should work, its no more than 16psi

Sent from my SAMSUNG-SM-N910A using E46Fanatics mobile app

 

[Eeavaldez]

Worth a try if replacing the whole block

Sent from my SAMSUNG-SM-N910A using E46Fanatics mobile app

 

[Jason325xi]

If that happened from over heating you might have other problems like a head gasket/warped head. Did the car overheat or did you shut it down in time? Either Way i don't think jb weld is guna be the way to go. If you try to weld it at least groove it out a little bit.

 

[erehtuo]

Do you have any pictures to show a wider view?

The M3 could be different then the other inline 6's but the water pump bolts up to a separate piece I believe. You may be able to replace just that piece, I think its the timing cover.

Check out this thread
http://forum.e46fanatics.com/showthread.php?p=14238211

 

[BMW-North]

When was the last time the wp & clutch fan were changed. They need to be changed at the same time.

 

[Poolman]

Your going to need this part wielded . Would suggest that you find someone who is experienced with wielding aluminum and have the car towed to them, unless that have a rigg to bring the equipment to you.

 

[imolarot3]

Its a cast iron block in e46 m3. I will most likely go with this option (welding) to try to salvage my motor. Car didnt overheat, will attach wider angle photo later

 

[imolarot3]

If anyone knows of trusted welder in the area please let me know. I can tow within hour radius of chester nj 07930

 

[das_autobahn]

Its a cast iron block in e46 m3. I will most likely go with this option (welding) to try to salvage my motor. Car didnt overheat, will attach wider angle photo later

good luck welding cast iron...

 

[pack horse]

Its a specialist job welding cast iron. You cant go to any old welder the block might need to be pre heated to stop it cracking further.

 

[imolarot3]

Cant find anyone to do it. May have to swap new complete motor or sell. Sucks i just installed afe exhaust rogue short shift h&r springs bilstein shocks str wheels tires mishimoto fan and radiator...

 

[pack horse]

Contact a classic car restoration specialist they might be able to help.

There used to be a technique called "stitching" to fix cast iron blocks.

 

[Eeavaldez]

I have a spare block

Sent from my SAMSUNG-SM-N910A using E46Fanatics mobile app

 

[P_dog89gt]

I too thought that was just a timing cover behind the pump and not the actually block.

 

[Jason325xi]

To weld cast it will have to be pre and post heated. It's say you definitely want to find an experienced welder. Are you liking for a welder at an auto shop? Might want to look for a dedicated welding shop.

Edit: so if it didn't overheat, it apparently happened from the pump and the fan blades failing? I wish i was close to you, i welded a cast iron part on my dad's Subaru legacy a little over two years ago and it's still holding strong to this day. Hopefully it's a timing cover that can just be swapped out as said above. That would be way less of a pain in the a$$

 

[imolarot3]

Not a cover its the block. Found motor for 2500.. need to find way to justify swap.. performance mods that require engine to be out?

 

[das_autobahn]

wider view picture?

 

[imolarot3]

wider angle view