lowrider12
Well-known member
(from an ALH)
it's from an ALH
it's from an ALH
let's play: Name That Piece of Metal from the Oil Pan!
- Thread starter lowrider12
- Start date
Blacktree
Veteran Member
Have you done any engine work lately? It looks like maybe a bolt was put in the wrong hole, bottomed out, and caused metal to break off the other side.
BobnOH
not-a-mechanic
Sounds right. It's definetly cast and it sure looks like a bolt forced it loose.
Look inside the lower block, you may see where it came from. Can't remember if the oil pan bolts are thru holes, but I do believe the two bolts adjacent to the bell housing are longer.
Probably not critical.
Look inside the lower block, you may see where it came from. Can't remember if the oil pan bolts are thru holes, but I do believe the two bolts adjacent to the bell housing are longer.
Probably not critical.
lowrider12
Well-known member
thanks for answers!
a TDI trusted mechanic replaced the head (with new AMC) about 10 months ago. The head gasket & timing belt needed service so we figured we might as well throw a new head on it while we're at it.
He did replace leaking main seal, and clutch.
Do the wear lines on the 2nd pic add any info? They're all in the same direction. Might those lines be original from the factory?
a TDI trusted mechanic replaced the head (with new AMC) about 10 months ago. The head gasket & timing belt needed service so we figured we might as well throw a new head on it while we're at it.
He did replace leaking main seal, and clutch.
Do the wear lines on the 2nd pic add any info? They're all in the same direction. Might those lines be original from the factory?
jimbote
Certified Volkswagen Nut
probably too long of a bolt was instslled in the rear main seal
maxmoo
Veteran Member
- Joined
- Jan 19, 2011
- Location
- Lakefield, Ontario, Canada
- TDI
- 2000 golf, 2001 golf, 2000 beetle, 2003 wagon, 2004 golf, 2004 jetta, all diesels
.....and then they really reefed on it when it bottomed out!
aja8888
Top Post Dawg
Probably had the impact wrench set for "high torque".
flee
Veteran Member
Look for oil seeping from the affected bolt, as it now has a pathway to the outside.
The marks are from machining the inside of the block.
jmodge
Top Post Dawg
- Joined
- Jun 18, 2015
- Location
- Greenville, MI
- TDI
- 2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
Looks like Iron not aluminum, correct? One of the Idler bolts maybe? Check for oil behind the front cover. OW!
jasonTDI
TDI GURU Vendor , w/Business number
Before anymore of you "armchair" mechanics just to any more conclusions I worked on it. I also used the correct bolts, the correct torque and methods on the car. There is a very good likely hood the part was broken and sitting in the lobed corner of the pan for some time. Long before I worked on it as the car had many miles on it.
And yes, it's a machined point on the block somewhere. Hard to say where though. There are many.
And yes, it's a machined point on the block somewhere. Hard to say where though. There are many.
KLXD
Top Post Dawg
Sounds like you agree with the assessment of the "armchair" mechanics?
So why the attitude?
A simple "it wasn't me" would have sufficed. I expect you'd have made the same assumption if you weren't personally involved.
So why the attitude?
A simple "it wasn't me" would have sufficed. I expect you'd have made the same assumption if you weren't personally involved.
BobnOH
not-a-mechanic
Many of us take our work very personally, I know I do (glad I don't work on cars).
Some previous posts sort of concluded it was from the back side of the rear main, from a too long fasteners, he's just saying, No, it's Not.
jimbote
Certified Volkswagen Nut
no arm chair here Jason, and nobody's pointing fingers at YOUR
work obviously, but someone screwed up along the line somewhere
work obviously, but someone screwed up along the line somewhere
jimbote
Certified Volkswagen Nut
and where did he say it WASN'T from the rear main seal area? ... there are two machined areas inside the block that accept that size bolt on the opposite wall, one is the rear main, one is the front seal holder ... someone correct me if i'm wrong, but i'll confirm later on one of the disassembled "armchair"
blocks i have in the shop
Last edited:
jasonTDI
TDI GURU Vendor , w/Business number
There are indeed two spots it could come from looking at the block I have here. Rear main seems the probable one. But if you use the correct bolts. The ones that come in the the stock rear main you won't have an issue unless there was a machining defect or assembly damage at the factory. I worked on the car 11 months ago. I can't tell you if I did a rear main or not. if it was the issue it would leak. Badly.
jasonTDI
TDI GURU Vendor , w/Business number
Where's the middle finger emoji....and where did he say it WASN'T from the rear main seal area? ... there are two machined areas inside the block that accept that size bolt on the opposite wall, one is the rear main, one is the front seal holder ... someone correct me if i'm wrong, but i'll confirm later on one of the disassembled "armchair"
Chill out.
jimbote
Certified Volkswagen Nut
possibly the front seal holder area then? it's uses sealer on the flange instead of a molded rubber gasket so it would not leak if broken through
Blacktree
Veteran Member
my thoughts as well
jimbote
Certified Volkswagen Nut
whatever dudeWhere's the middle finger emoji....
Chill out.
jmodge
Top Post Dawg
- Joined
- Jun 18, 2015
- Location
- Greenville, MI
- TDI
- 2001 alh Jetta, RC2 w/.205's 5speed daily summer commuter and 2000 alh Jetta 5spd swap, 2" lift, hitch, stage 3 TDtuning w/.216's winter cruiser, 1996 Tacoma ALh
No offense meant and none taken