MyE28.com

Hi, I was taking a head off a m20 from a e34. I bought the car to part out. I was told that it had a blown head gasket. Well I have never seen a gasket go like this. I did not count but a number of rockers broke. 6 valves broke, one stuck in a piston. 4 out of the 6 pistons had holes in them.












Remember change your timing belt.


Andy

Wow, waited too long to change the chelt.

WOW! (Insert generic pro-M30/timing chain smart ass remark here) That sucks for whoever had it let loose!

Ya the guy I got it from was told by a shop that it just needed a tune up. So the shop replaced the cap and rotor, wires and did some other stuff to help it run. Well it did not help.

Andy

damn...... never seen one pop that many valve head off, usually just one breaks off if any, musta been on the limiter when it went

winfred wrote:damn...... never seen one pop that many valve head off, usually just one breaks off if any, musta been on the limiter when it went

The best way for one to go IMO! Must have been spectacular!

Could someone really think that the catastrophic noise that must have ensued when that thing went was just a head gasket?? Wow.

I love how people will blame anything on a head gasket. The kid I bought my old saab from said it had a blown headgasket. It had actually spun a bearing and ruined the crankshaft flange.

Hey, I don't have my bentley handy, what size torx socket do you need for those. E16?

Heeheheheheheheheheheheh




heh........he said holes.

Cactus wrote:I love how people will blame anything on a head gasket. The kid I bought my old saab from said it had a blown headgasket. It had actually spun a bearing and ruined the crankshaft flange.

My e30 had a "blown HG" but it was just the valve cover gasket and half moon seals leaking.

I had those laying around, so no cost to me!

Is that Mitch's engine?

Duke wrote:Is that Mitch's engine?

It's Mick. MickForrest. We knew he'd be back.

davintosh wrote:

Duke wrote:Is that Mitch's engine?

It's Mick. MickForrest. We knew he'd be back.

...but I though he had a chain!?

slammin_e28 wrote:

davintosh wrote:

Duke wrote:Is that Mitch's engine?

It's Mick. MickForrest. We knew he'd be back.

...but I though he had a chain!?

a modified chelt, its even capable of supporting dukes ego

Andy,
I don't see any rocker arms broken, but the rocker arm shaft bushing webs are toast, which puts the head in the same class. You have any larger photos other then these iPod size pics? I'd like to show this damage to a few people, who need to wake up.
-Rod

Holy crap! That's some damage! Did it let go at the Lemons rodthrowapolooza?

HG huh? You would think the complete lack of vacuum pressure to the brake booster would have been a dead givaway it was something much, MUCH worse.

The holes remind me of the untimely end of my XJ-6. Yes, it had chains and half a million chain guides. I hated that engine and it's 10 miles of vacuum lines and crap guides, but it actually broke because of faulty tappet guides coming apart and allowing the valve to shake side to side until the head breaks off (a "hold down kit" aka band-aid was made by a local shop here that required machining the head to accept the bolts for the kits at arm+leg prices for each two guides it held down). Vacuum pressure? What vacuum pressure? I managed to drive it home on 5 and a quarter cylinders knowing it was unrepairable when it went with almost no brakes. Parted the car for more than I paid for it a year prior.

Well, I had to refund the money on the block. Does anyone have a m20 e34 block?

Andy

Snakeyestx wrote:HG huh? You would think the complete lack of vacuum pressure to the brake booster would have been a dead givaway it was something much, MUCH worse.

The holes remind me of the untimely end of my XJ-6. Yes, it had chains and half a million chain guides. I hated that engine and it's 10 miles of vacuum lines and crap guides, but it actually broke because of faulty tappet guides coming apart and allowing the valve to shake side to side until the head breaks off (a "hold down kit" aka band-aid was made by a local shop here that required machining the head to accept the bolts for the kits at arm+leg prices for each two guides it held down). Vacuum pressure? What vacuum pressure? I managed to drive it home on 5 and a quarter cylinders knowing it was unrepairable when it went with almost no brakes. Parted the car for more than I paid for it a year prior.

Et Tu, Snakeyes, had an XJ6 as well? That is 3 cars we have in common. Is there an emoticon for high five?

Finely took this piece to the junk yard. once again here is a reminder to change your timing belt.


Andy

south26 wrote:Finely took this piece to the junk yard. once again here is a reminder to change your timing belt.

Andy

Perhaps this should be stickied so the pictures can be referenced quickly for newcomers who question the "change your timing belt" mantra.

Any chance you could upload larger pictures?

I still can't get over how bad the damage is on that one. I've seen some torn up m20s before, but that's just impressive. The worst I've seen is 4 broken rockers and cracked rocker arm rod bosses on the head.

I will see if I can load bigger pics.


Andy.

sorry no bigger pics, but I can not believe I just sold a part to a person that had the 528e for 5 years and did not know that it had a belt.

south26 wrote:Finely

Aren't you a teacher?