Notices
996 Forum 1999-2005
Sponsored by:

Chewed Up Bolt Found in Oil Pan

Thread Tools
 
Search this Thread
 
Old 09-15-2017, 08:26 AM
  #46  
Quadcammer
Race Director
 
Quadcammer's Avatar
 
Join Date: Nov 2006
Location: Clifton, NJ
Posts: 15,632
Received 1,375 Likes on 795 Posts
Default

People arent concerned about that big *** chunk of aluminum in the pan along with the destroyed bolt?
Old 09-15-2017, 09:20 AM
  #47  
extanker
Banned
 
extanker's Avatar
 
Join Date: Sep 2009
Posts: 2,161
Likes: 0
Received 5 Likes on 5 Posts
Default

Originally Posted by Quadcammer
People arent concerned about that big *** chunk of aluminum in the pan along with the destroyed bolt?
^^^^ i was waiting for some one to pick up on that....instead one praised the magnetic drain plug for saving the motor. This HBO drama can shortened to ......drive it,sell it or fix it ....
Old 09-15-2017, 12:24 PM
  #48  
Chris(MA)
Burning Brakes
 
Chris(MA)'s Avatar
 
Join Date: Sep 2004
Location: California
Posts: 879
Received 149 Likes on 67 Posts
Default

Originally Posted by Quadcammer
People arent concerned about that big *** chunk of aluminum in the pan along with the destroyed bolt?
If the bolt went through the oil filler tube hole and got side swiped by the crank carrier rotating components, it could have sheared off a small piece of aluminum perhaps?
Old 09-15-2017, 12:32 PM
  #49  
5CHN3LL
Race Director
 
5CHN3LL's Avatar
 
Join Date: Sep 2012
Location: SOcialist republic of CALifornia
Posts: 10,423
Received 211 Likes on 155 Posts
Default

What I'd be worrying about are the components that were bent but didn't break during whatever s**tshow caused the damage to the bolt.

"Mosht thingsh in there don't react well to boltsh."
-Capt. Marko Ramius
Old 09-15-2017, 12:35 PM
  #50  
texcwa
Racer
Thread Starter
 
texcwa's Avatar
 
Join Date: Jul 2016
Posts: 379
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by charlieaf92
If that came off, got chewed up and somehow got into the sump it would have been very noticeable. The fact that you discovered it by accident and not during a tear down following catastrophic engine failure leads me to believe it was dropped in during an oil change or somehow assembled with it in there. Best course of action may be to change the oil and continue driving as you have been.

Im assuming everything has seemed normal thus far.
Yes, the car ran very quiet and smooth. In fact, I was about to write a post on the difference the DT40 made in how the engine ran so quiet.

Originally Posted by dgjks6
This may be stupid and does not really explain the damage to the bolt, but looking at your first pic the bolt has the same markings as the bolt on the oil pan baffle. There are three bolts holding the baffle on. Are they all there?
Thanks and I have now confirmed that all of the bolts that hold down the baffle are in place.

Originally Posted by speed rII
If you have the service history, check if the oil fillertube has been changed.
It's secured with one m6x16 bolt.
When I changed mine, I noticed that it would be quite easy to drop the bolt in to the engine, if not being cautious.
It would go thru crankcase and end to the bottom of the oilpan. Worst case it would stop on the crankshaft carrier and fell thru when engine was running.
I do have all the receipts for all work that has been performed from day 1 on this car (one of the reasons I got it) and they do not show any work related to replacing the filler tube.

Originally Posted by LexVan
Another win for the lowly magnetic oil drain plug.

Send Jake Raby a PM and ask him to comment.
I wanted to send a message to Jake but after reading his thread on the damage to property and the clean up he was undergoing from Irma, I felt it best not to bother him.

Originally Posted by Quadcammer
People arent concerned about that big *** chunk of aluminum in the pan along with the destroyed bolt?
I am as much (if not more) concerned about the chunk of aluminum. This is why I plan on using the borascope to its fullest extent to look within the engine. I may see nothing but want to do all I can (other than spending the $$$ at this point to split the case) before refilling with oil and starting it. I also plan to perform another oil analysis in 500 miles along with removing and inspecting the filter.

Again, thanks all who have offered comments or questions. From my 57 years of life experience, there is no such thing as a dumb question.
Old 09-15-2017, 01:27 PM
  #51  
RRRUFF
Advanced
 
RRRUFF's Avatar
 
Join Date: Nov 2012
Location: Arizona
Posts: 76
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Quadcammer
People arent concerned about that big *** chunk of aluminum in the pan along with the destroyed bolt?
Possibly a bolt from chain sprocket that may have gotten caught in the area around the sprocket and consequently took a small chunk of aluminum before it got free and dropped into the pan. My sprocket bolts are hex bolts, yours are likely to be torx heads. I attached a picture of my chain sprocket so you can see the area i am talking about.
Attached Images  
Old 09-15-2017, 01:49 PM
  #52  
Ahsai
Nordschleife Master
 
Ahsai's Avatar
 
Join Date: May 2005
Posts: 7,328
Received 62 Likes on 47 Posts
Default

Originally Posted by Byprodriver
I believe the cam sprocket bolts are 10.9 grade, the loose bolt is 8.8 leading me to think it fell from a "simi-critical" place where it was under torqued.
I concur.
Old 09-15-2017, 04:47 PM
  #53  
RRRUFF
Advanced
 
RRRUFF's Avatar
 
Join Date: Nov 2012
Location: Arizona
Posts: 76
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Ahsai
I concur.
Good point. I missed that one.
Old 09-15-2017, 04:58 PM
  #54  
Kris Murphy
Rennlist Member
 
Kris Murphy's Avatar
 
Join Date: Oct 2012
Location: Jenkintown, PA
Posts: 1,115
Received 182 Likes on 114 Posts
Default

My vote would be to drive it until something happens. To figure out where that came from as you have pointed out will likely cost almost as much as putting a rebuilt motor in. Sure, you may screw it up so much that you no longer have a core, but it is very likely that that bolt has been there a LONG time with no ill effect.

What are the chances that the bolt ended up in the pan just a day or two before you found it. Almost zero I suspect. It's been hanging out there for a while, possibly from some previous work, possibly since the motor was built. Had you not gotten the magnetic drain plug, you would still not know that bolt and chunk of aluminum was there. You'd be driving the car happily until it met one of it's other famous modes of failure.
Old 09-15-2017, 05:19 PM
  #55  
5CHN3LL
Race Director
 
5CHN3LL's Avatar
 
Join Date: Sep 2012
Location: SOcialist republic of CALifornia
Posts: 10,423
Received 211 Likes on 155 Posts
Default

Originally Posted by texcwa
From my 57 years of life experience, there is no such thing as a dumb question.
One of my underlings wandered into my office yesterday wearing a Paula-Abdul's-got-the-nods-after-railing-oxy-all-night-long look in his dopey eyes. He paused, eyes lazily scanning the labels on the front of the server and the intermittent progress indicator of the Linux install. The flicking eyes were the only hint of intelligence, a single dot of sentient green on the otherwise unbroken gray expanse of bovine thickheadedness.

Suddenly, a neuron kicked off! He blinked, clearly startled by the unfamiliar sensation of thought, and asked, "whatcha doin?"

Thankfully, I am a man of limitless patience. A lesser boss would have merely pointed and yelled, "Get the f**k out!" I, on the other hand, was able to draw down deep from my reservoir of self-control, so I said "I'm making ice cream, you f**kwit. Now get the f**k out!"

Your sentiment is a beautiful one, but it's flawed. Stupid people only ask stupid questions.
Old 09-15-2017, 06:18 PM
  #56  
texcwa
Racer
Thread Starter
 
texcwa's Avatar
 
Join Date: Jul 2016
Posts: 379
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by 5CHN3LL
One of my underlings wandered into my office yesterday wearing a Paula-Abdul's-got-the-nods-after-railing-oxy-all-night-long look in his dopey eyes. He paused, eyes lazily scanning the labels on the front of the server and the intermittent progress indicator of the Linux install. The flicking eyes were the only hint of intelligence, a single dot of sentient green on the otherwise unbroken gray expanse of bovine thickheadedness.

Suddenly, a neuron kicked off! He blinked, clearly startled by the unfamiliar sensation of thought, and asked, "whatcha doin?"

Thankfully, I am a man of limitless patience. A lesser boss would have merely pointed and yelled, "Get the f**k out!" I, on the other hand, was able to draw down deep from my reservoir of self-control, so I said "I'm making ice cream, you f**kwit. Now get the f**k out!"

Your sentiment is a beautiful one, but it's flawed. Stupid people only ask stupid questions.
good point, I still get a chuckle from the "do you cover your snorkel when you wash your car" thread. But on the other hand, sometimes the dumb question Leeds you into a different direction that you have not thought of. Anyways, I still appreciate all responses.
Old 09-15-2017, 06:27 PM
  #57  
FRUNKenstein
Rennlist Member
 
FRUNKenstein's Avatar
 
Join Date: Jun 2003
Location: Overland Park, KS
Posts: 6,013
Received 298 Likes on 171 Posts
Default

Originally Posted by 5CHN3LL
What I'd be worrying about are the components that were bent but didn't break during whatever s**tshow caused the damage to the bolt.

"Mosht thingsh in there don't react well to boltsh."
-Capt. Marko Ramius
Reminds me of another quote:

Now they will tremble again - at the sound of our silence. The order is: engage the silent drive.
Old 09-15-2017, 06:28 PM
  #58  
texcwa
Racer
Thread Starter
 
texcwa's Avatar
 
Join Date: Jul 2016
Posts: 379
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Kris Murphy
My vote would be to drive it until something happens. To figure out where that came from as you have pointed out will likely cost almost as much as putting a rebuilt motor in. Sure, you may screw it up so much that you no longer have a core, but it is very likely that that bolt has been there a LONG time with no ill effect.

What are the chances that the bolt ended up in the pan just a day or two before you found it. Almost zero I suspect. It's been hanging out there for a while, possibly from some previous work, possibly since the motor was built. Had you not gotten the magnetic drain plug, you would still not know that bolt and chunk of aluminum was there. You'd be driving the car happily until it met one of it's other famous modes of failure.
That seems to be the consensus of many but I will do my due diligence, clean everything up, wait for oil analysis, probe around with a boreascope (gave me a reason to buy one) if all looks good, refill with DT40 and pay attention to how it runs and sounds. From the advise of Slakker, will do another filter check and oil analysis at around 500 miles. Just hope this does not haunt me like the IMS did before changing it.
Old 09-15-2017, 06:30 PM
  #59  
FRUNKenstein
Rennlist Member
 
FRUNKenstein's Avatar
 
Join Date: Jun 2003
Location: Overland Park, KS
Posts: 6,013
Received 298 Likes on 171 Posts
Default

Originally Posted by texcwa
I wanted to send a message to Jake but after reading his thread on the damage to property and the clean up he was undergoing from Irma, I felt it best not to bother him.
Jake prefers phone calls anyway.
Old 09-15-2017, 07:26 PM
  #60  
5CHN3LL
Race Director
 
5CHN3LL's Avatar
 
Join Date: Sep 2012
Location: SOcialist republic of CALifornia
Posts: 10,423
Received 211 Likes on 155 Posts
Default

Originally Posted by kcattorney
Jake prefers phone calls anyway.


Quick Reply: Chewed Up Bolt Found in Oil Pan



All times are GMT -3. The time now is 12:38 AM.