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View Full Version : You think i can JB weld this back together?



nunya
02-04-2011, 09:40 AM
http://lh5.ggpht.com/_NtFoX03bmho/TUw23uzqgVI/AAAAAAAAvow/oSkMADuG9pE/s1280/IMG_20110204_092416.jpg

trav10
02-04-2011, 09:40 AM
o hell yea

B5Ballin
02-04-2011, 09:58 AM
Shit man, oil and antifreeze are not interchangeable.[:p]

colony7
02-04-2011, 10:09 AM
antifreeze? i think he substituted sand for oil and bolted on a tractor-trailer turbo

import automart
02-04-2011, 10:11 AM
I see nothing wrong here, whats the JB weld for?
How many miles did it make it before this?

andyzzdae38
02-04-2011, 10:11 AM
there has to be a good story behind this

dcampana
02-04-2011, 10:14 AM
OUCH!!!! this happen on the s6?

ZimbutheMonkey
02-04-2011, 11:58 AM
How the f*uck did that happen!?!? I thought those rods were damn near indestructable. Looks like a lot of heat in the bearing surface. Did you run out of oil?

SeekB00st
02-04-2011, 12:26 PM
LOL.

hell yea go for it.

I want to know how you pulled this one off.

ECS Tuning-Audi
02-04-2011, 12:31 PM
Drywall screws and superglue... you should be up and running by dinner tonight.

dcampana
02-04-2011, 12:37 PM
gorrilla glue and blue painters tape. thats the deadly combination.

still want the story!!!

yuriy
02-04-2011, 12:57 PM
zip ties ftw

oh and i take it there was a lack of oil, rod overheated and snapped?

JEmm
02-04-2011, 01:43 PM
Dude, don't listen to all these negative nancy's. That'll buff right out.

barrys1.8t
02-04-2011, 01:57 PM
Shoot call me dumb but I think it looks fine? Lol;)

nunya
02-04-2011, 02:03 PM
Oil level was fine, moral of the story is the OEM pressure warning only alerts at a very very low pressure. Like around 10 psi. We tested the pressure and compression after the motor was cranked up and broken in. We arent sure what caused the low pressure but i will invest in a real gauge with the next motor. It was a new pump and i had just had an oil change by 034 maybe 300 miles prior. The oil pressure light blinked once maybe 1/2 a second before the rod shot out the side. The machinist is taking a look at it next week.

http://lh6.ggpht.com/_NtFoX03bmho/TSYUzDBr3_I/AAAAAAAAu7U/gPUdjsX0VCo/s1280/IMG_20110106_103535.jpg

Made a couple holes, ruined everything in the bottom. The piston on cylinder two popped the head a little two but it doesnt look too bad.

Scotty@Advanced
02-04-2011, 02:04 PM
Is that one of those new multi piece super lightweight rods with the superheated and hardened big end? I heard good stuff about those. Just think of how much less that piston weighs with the hole in it's side! And the block doesn't everyone want to see their internals spinning!?

JumboBlack1.8
02-04-2011, 02:05 PM
Elmer's glue should work

czum09
02-04-2011, 02:09 PM
[o_o] I would think 3m adhesive would be best!

SeekB00st
02-04-2011, 04:49 PM
before the rod shot out the side.

http://lh6.ggpht.com/_NtFoX03bmho/TSYUzDBr3_I/AAAAAAAAu7U/gPUdjsX0VCo/s1280/IMG_20110106_103535.jpg


OOOOOOOOHHHHHHH MMMMMMYYYYYY MMMMMOOOOTTTTHHHEER FUCKING GOD. WHAT HAVE WE DONE HERE.

I've bent rods, even broken rods before. But never have I seen that.

yuriy
02-04-2011, 04:49 PM
glue stick is ideal for this situation.

jpadilla
02-04-2011, 05:05 PM
it looks fine to me just duct tape it and call it a day.

Will@R.A.I.
02-04-2011, 05:43 PM
look like it go boom...

rubberband
02-04-2011, 06:30 PM
impressive!
best carnage i have seen to date....30 psi and no oil?

Zac
02-04-2011, 06:40 PM
I do it all the time

walky_talky20
02-04-2011, 08:56 PM
This is interesting. From what I've seen, on a 1.8T with low oil pressure a camshaft will lock up long before there is any significant damage to the bottom end. If this happened due to low oil pressure, I want to see the cam journals.

coolgraymemo
02-04-2011, 09:13 PM
thats not good.

A4Shizzle
02-04-2011, 10:13 PM
Bubblegum and a couple toothpicks get my vote...


I'm thinking the crank/rod bearing overheated and froze right about the time your 30psi cylinder fired. It hurts just looking at that pic...


This brings up a related question I've had for a little while: does anyone know what block to log in vag-com for oil pressure and what the correct amount is?

Edit: It looks like you can't check with software, what should we be looking for with a gauge?

JumboBlack1.8
02-04-2011, 10:42 PM
Maybe I should get an oil pressure gauge.....

Gaberossi
02-05-2011, 12:46 AM
thinking the same thing since i work for a gauge company..

dozanti
02-05-2011, 06:38 AM
it looks fine to me just duct tape it and call it a day. If you can't duct it, fuck it haha

ricekikr
02-05-2011, 06:42 AM
If you can't duct it, fuck it haha

Lol

nunya
02-05-2011, 10:50 AM
This is interesting. From what I've seen, on a 1.8T with low oil pressure a camshaft will lock up long before there is any significant damage to the bottom end. If this happened due to low oil pressure, I want to see the cam journals.

The journals are fine. This will be the third bottom end this head will be on. It blew the oil filter off and cracked the flange the oil filter sits on too. It almost blew the motor mount flange off.

--dillon

nunya
02-05-2011, 11:27 AM
impressive!
best carnage i have seen to date....30 psi and no oil?

Na, just cruising at ~75mph. I was on it maybe 5 minutes before then i heard a knock, tried to pull over then boom. This tune is only for around 22psi. I am dropping the compression a bit this time to 8.5:1. Last time it was 9.0:1 and the head gasket raised it a bit by .2. I would rather have the insurance of lower compression. It will make me sleep better at night.

--dillon

SeekB00st
02-05-2011, 01:38 PM
Na, just cruising at ~75mph. I was on it maybe 5 minutes before then i heard a knock, tried to pull over then boom. This tune is only for around 22psi. I am dropping the compression a bit this time to 8.5:1. Last time it was 9.0:1 and the head gasket raised it a bit by .2. I would rather have the insurance of lower compression. It will make me sleep better at night.

--dillon


find a new block yet?

SoFresh
02-05-2011, 01:39 PM
It'll buff out [up]

nunya
02-05-2011, 04:50 PM
find a new block yet?

Yea, its at the machinist. doing a ABA 83mm, 8.5:1 build this time.

--dillon

walky_talky20
02-05-2011, 05:12 PM
Bubblegum and a couple toothpicks get my vote...


I'm thinking the crank/rod bearing overheated and froze right about the time your 30psi cylinder fired. It hurts just looking at that pic...


This brings up a related question I've had for a little while: does anyone know what block to log in vag-com for oil pressure and what the correct amount is?

Edit: It looks like you can't check with software, what should we be looking for with a gauge?

Yep, there is no pressure sender on the 1.8T from the factory, so no vag-com. ECU wouldn't care what the pressure was anyway, only the driver/instrument cluster needs to know. Anyhow, the oil pressure specs (at oil temp of 80C) from the Bentley are as follows:

Idle: at least 1 bar (14.5 psi)
3000 RPM: 3.5 to 4.5 bar (50-65 psi)

I've got a gauge on mine. I've never seen it below 24psi at idle, even at 210F on the oil temp. And at that temp, I can still get to reach 100psi near red-line. At 3,000 revs it is more like 70psi. The pressure when cold is an entirely different story. Start the engine at 10F and the pressure is 100psi+ at idle. Pressure comes down gradually as it warms up.

BlackLock_A4
02-05-2011, 06:22 PM
Mother of God! I am going to get a press gauge soon! lol

blmlozz
02-05-2011, 06:26 PM
The only block-busting I've ever seen were on FS-DE's in MSP's, they blow blocks like we change oil. Although I've never seen a blown 1.8T, nice. Did it even take the oil cooler off or was that your doing to show the hole?