Build Thread 1978 Mercury Cyclone. The pig is in the pen.
- Status
@a91what
Just looked at the DL. Injectors are going over 109% duty cycle....guess I'm having to change them out for the 60 pounders?
Just looked at the DL. Injectors are going over 109% duty cycle....guess I'm having to change them out for the 60 pounders?
Lol, riiiiiiight when it starts running the way youve always wanted, youre gonna change it up for more power.
Just for safety we are gonna add water meth and about 4 more PSI probablyLol, riiiiiiight when it starts running the way youve always wanted, youre gonna change it up for more power.
Annnnd...........along with more power comes the inevitable....
We got parts breakage.
Today I drive the thing to lunch. ( After driving it to work).
As I'm driving along, I hear a really loud "BAM!" under the car. I'm thinking WTF is that?...could it be I hit something, or did a driveshaft bolt come loose and fling itself against the floor?......
I continued to my lunch destination, (Dairy Queen,...5 buck lunch w/ drink and small sundae of choice)... I sit outside, eating my 5 buck lunch looking at the car,..lookin for signs of a phck up,...I get nothin.
I return to work, nothin is makin noise,...pissn, or moanin....I think it must've been a fluke.
Until the SVC mgr grabs me at about 5 PM and says " Hey, you know that you got something pouring out from under your car?"
Ohhh phck.....where at? I ask...." All the way at the back" he replies..
I check it.
Gear oil..madly dripping out from under the car...right at the cover plate sealing surface.
It's late....I can't risk driving the car in the dark with a potentially empty rear end housing...
I have to leave it at BMW.
I'm gonna guess that I've broken a differential cap, and the resulting carnage has broken ( cracked) the rear end housing center section.....( which is a really, really really bad thing....) The rear end is narrowed, and has shock mounts welded in place of the stock mount points....it's not like I'll run right out and get me some JB weld to fix this.
This time the fix here is gonna be a complete do over if it's broken.
You do have to remember that I have car Munchausens disease....I make things worse than they actually are...
But what else could've happened to cause the housing to leak like a btch after making a giant bang noise like mine did?
We got parts breakage.
Today I drive the thing to lunch. ( After driving it to work).
As I'm driving along, I hear a really loud "BAM!" under the car. I'm thinking WTF is that?...could it be I hit something, or did a driveshaft bolt come loose and fling itself against the floor?......
I continued to my lunch destination, (Dairy Queen,...5 buck lunch w/ drink and small sundae of choice)... I sit outside, eating my 5 buck lunch looking at the car,..lookin for signs of a phck up,...I get nothin.
I return to work, nothin is makin noise,...pissn, or moanin....I think it must've been a fluke.
Until the SVC mgr grabs me at about 5 PM and says " Hey, you know that you got something pouring out from under your car?"
Ohhh phck.....where at? I ask...." All the way at the back" he replies..
I check it.
Gear oil..madly dripping out from under the car...right at the cover plate sealing surface.
It's late....I can't risk driving the car in the dark with a potentially empty rear end housing...
I have to leave it at BMW.
I'm gonna guess that I've broken a differential cap, and the resulting carnage has broken ( cracked) the rear end housing center section.....( which is a really, really really bad thing....) The rear end is narrowed, and has shock mounts welded in place of the stock mount points....it's not like I'll run right out and get me some JB weld to fix this.
This time the fix here is gonna be a complete do over if it's broken.
You do have to remember that I have car Munchausens disease....I make things worse than they actually are...
But what else could've happened to cause the housing to leak like a btch after making a giant bang noise like mine did?
Last edited:
stangboy
Founding Member
Oh gosh, the dreaded Six Thinking Hats Edward de Bono system.....
Straight off, I'm like using my Chicken Maaaaan Voice....Meanwhile, the "Six Fingered" interbred Ford six with too high compression ratio and cast iron conrods and custom external water and and oiling systems still lives to see another day.
Then I'm like Mike, if you'd just left it at 99 hp, you wouldn't have broken the 8.8"...
And then You wanna go to the Poor Mans 3 link now?
Tick option Four....
Sorry Mike. Sh!+.......
Straight off, I'm like using my Chicken Maaaaan Voice....Meanwhile, the "Six Fingered" interbred Ford six with too high compression ratio and cast iron conrods and custom external water and and oiling systems still lives to see another day.
Then I'm like Mike, if you'd just left it at 99 hp, you wouldn't have broken the 8.8"...
And then You wanna go to the Poor Mans 3 link now?
Tick option Four....
Sorry Mike. Sh!+.......
? You run a reinforced cap don't you?
Don't be rediculous....that always seemed an unnecessary cosmetic upgrade on a non-sticky tire/non-drag raced application to me. ( obviously, considering my potential power level,.....I might have to re-think that)
I've been looking around the web this morning to see how common it is for a rear end break with symptoms like mine, so I can say " yep,...that's what happened right there". But no real instances of that. So I'm walking uncommon ground this morning.
Something "inside" tried to get "outside" is what I'm thinkin...Since it didn't make anymore noise after the loud bang, since the diff was leaking so badly, and since the cover plate is only the stock, cheesy-thin piece of steel?..
I'm thinkin the piece that was inside actually got outside...
That's my best case scenario...a loose ring gear bolt that got spit out maybe. It wasn't noisy on the drive back, and I'd imagine that if I broke a differential cap, the whole gear carrier would have moved enough to cause the gears to go ape-sht noise wise...I have no clue until I get to work...Where I should have a significant puddle of gear oil ( the one automotive fluid that never seems to stop stinking) in a BMW service bay........that I'll have to clean up......in my work clothes.
Yeah but I can't run right down to AZ to get a new one,....I have to order my replacement from Cometic, where they have my template for a new one...
Nothing's changed...whatever's wrong with the rear end will get fixed ( one way or the other). Next will come the injectors, then the water meth, then the tune to take advantage of all of that.
Then the monster starts eating.
Nothing's changed...whatever's wrong with the rear end will get fixed ( one way or the other). Next will come the injectors, then the water meth, then the tune to take advantage of all of that.
Then the monster starts eating.
Wish I had a few days to spare I'd come up there and show the flatbed driver how to load that thing without damaging it 
Can you use a lift at the dealership to facilitate a repair?
Can you use a lift at the dealership to facilitate a repair?
Man I tell ya...the monster should be a cat.
Cause he's got 9 lives.
What's that look like to you?
Its one of the 10 ring gear bolts that were all on their way to falling out.
They were all loose, several had fallen out, and laying in the bottom of the housing...one of them got picked up and flung at the cover so hard, it punched a hole clean through the cover.
One of them is still unaccounted for...
( it likely never was installed)
For the last month, the rear end has been clanking when I'd put it into gear...Now I know why.
Two holes are gonna have to stay empty for tiday...one bolts threads were trashed..its very possible that the ring gears threads are the same.
It'll get me home tonight, and that's all that matters..ill obviously have to put new bolts in when I get him back home safe...ill consider rebuilding the Tloc, and adding a cover w/bearing cap support at that time too.
So...one more life down... That puts me down to about 3 left.
Cause he's got 9 lives.
What's that look like to you?
Its one of the 10 ring gear bolts that were all on their way to falling out.
They were all loose, several had fallen out, and laying in the bottom of the housing...one of them got picked up and flung at the cover so hard, it punched a hole clean through the cover.
One of them is still unaccounted for...
( it likely never was installed)
For the last month, the rear end has been clanking when I'd put it into gear...Now I know why.
Two holes are gonna have to stay empty for tiday...one bolts threads were trashed..its very possible that the ring gears threads are the same.
It'll get me home tonight, and that's all that matters..ill obviously have to put new bolts in when I get him back home safe...ill consider rebuilding the Tloc, and adding a cover w/bearing cap support at that time too.
So...one more life down... That puts me down to about 3 left.
- Status