Eric's Mtech2 Vert

[Fyrizon]

Absolutely amazing build, was reading through everything after you posted "batteries" on my silly thread. Now I think I need that steering wheel in my life as well... :(

[Cabriolet]

Failure sucks
Melted my rings.
Checked my compression good in 5/6 of the cylinders. Cylinder 5 register 50psi on the dry compression test and 120 wet.


Here’s the last time this engine will be in this car.


Still sexy


10 am and engine is ready to be pulled.


My good friend mike lent me a huge hand.


Breaking lose the shift linkage is always a PITA. The transmission clip sucks.


11am out it comes.





Here's the reason I had to do this.


Melted ring, they crack like glass.

IMG_0469 by Eric Berger, on Flickr

[reelizmpro]

Didn't you put those rings in? Why only cylinder 5? What brand rings?

[Cabriolet]

Barry heres the brand of ring.

http://farm6.static.flickr.com/5123/5286988069_3b477a3a5f_b.jpg

i got the stock OEM size. thinking that would be correct. apparently they were too big. too tight. and built up too much heat.

[reelizmpro]

Barry heres the brand of ring.

http://farm6.static.flickr.com/5123/5286988069_3b477a3a5f_b.jpg

i got the stock OEM size. thinking that would be correct. apparently they were too big. too tight. and built up too much heat.

Didn't check the ring gap? just curious why 1 cylinder and not all. Maybe they would have failed soon as well.

[Cabriolet]

Didn't check the ring gap? just curious why 1 cylinder and not all. Maybe they would have failed soon as well.

this, cylinder 1 always runs coolest on the M20. my bad, luckily an m20 is a cheap engine to rebuild and i have a bunch of extra m20 engines.

[bradnic]

and this happened with just normal driving?

[canakami]

Damn, you work stupid quick.

[Cabriolet]

Im really not sure what happened. i thought the rings may have been tight, but checking them they are all within spec.

today i prepped the block to go in for machining




and we also got my wife's rear subframe ready for her car.

[craiggroves91]

Sucks! You'll get her going soon.

PS. You're using the load leveler incorrectly
It goes like dis

[Cabriolet]

The m20 cant use the leveler like that. you will bend the front hanger. so i lift from the motor mount arms

[craiggroves91]

The m20 cant use the leveler like that. you will bend the front hanger. so i lift from the motor mount arms

Its just a hanger, bend it back

[///schwartzman]

How much would you sell her with the motor out?? I love M-Tech's almost as much as my M3... and an S54 would make her perfect!

[Cabriolet]

What what in the butt. It's Christmas break so that means a new engine time!
Thanksgiving day all my rings lets go and I had picked up a low millage engine and did a light refresh.
Cleaned and painted the block.


M50 17lb injectors in.

All new seals, timing belt and water pump.

Here's our trick for doing the lower seals.
Using an engine hoist hold the motor upside-down using chain on the motor mounts. That way we can get to the back seals and oil pan.



All put together and ready to go in.

In but not running.


JK! Blown head or headgasket. Mother F'er!!!
So today we did away with that head and gasket for a fully refreshed head, brand new eccentrics (valve adjustment needed badly now.)



There's no reason to ever skimp on the headgasket.

Head change in 1 day complete!
I don't have any photos and I haven't gotten the time-laps for today done yet. but shes running but needs a valve adjustment.

[CorvallisBMW]

Holy shit. So you blew one ring, rebuilt it, blew all the rings, got a new engine, blew the HG and then put a new head on? Jesus... that's some bad luck