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Inspect 2/6 rod bearings with TB off and crank locked at 45░ BTDC

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Old 03-14-2017, 04:11 PM
  #16
M. Requin
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What the hell, carry on! I understand (although try to stay away from) your position, and besides, seppuku wa dame da yo!
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Old 03-14-2017, 04:36 PM
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Just a point of order, my rod bearings looked fine the but the #1 main was worn from what is suspected to be a faulty damper.
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Old 03-15-2017, 12:35 AM
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Seth, You mentioned that you drained your oil into a contaminated catch pan. I would not be surprised if you had an antifreeze or other liquid sheen rise to the top... If that's all that's bothering you I wouldn't get TOO stressed. It appears you've fallen into the same "mind trap" I did with my first 928. There were some things that needed to be done, like deferred maintenance, etc, but noting too major. After getting the WYAIT bug up my ***, I ended up spending $6K on PARTS... Fortunately, labor was pizza & beer - gotta love the 928 Buckeye Landsharks! The point being, my first car didn't NEED most of the parts we replaced... but I did anyway... WYAIT. I soooooooo feeeeeeeeeeel your pain! Wrap it up before you drain the bank and drive your car. I know you'll have the oil tested in 5K miles and that's a good thing, but I've got $5 that says it'll come back pretty clean Glad Pete's 86.5 landed with such a great guy... Best of luck Dude!

Joel
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Old 03-15-2017, 01:39 AM
  #19
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Originally Posted by M. Requin View Post
What the hell, carry on! I understand (although try to stay away from) your position, and besides, seppuku wa dame da yo!
Thanks Martin. Damn the torpedoes, full speed ahead! I am in this position through my own fault and failings. And I will get out through my own efforts.




Originally Posted by hwyengr View Post
Just a point of order, my rod bearings looked fine the but the #1 main was worn from what is suspected to be a faulty damper.

hwyengr: Ye gods, that is gnawing at a corner of my mind. The balancer on the Red Witch looked none too good. I have a new ATI Superdamper on order from Greg. Hopefully it is not too late.





Originally Posted by jbrob007 View Post
Seth, You mentioned that you drained your oil into a contaminated catch pan. I would not be surprised if you had an antifreeze or other liquid sheen rise to the top... If that's all that's bothering you I wouldn't get TOO stressed. It appears you've fallen into the same "mind trap" I did with my first 928. There were some things that needed to be done, like deferred maintenance, etc, but noting too major. After getting the WYAIT bug up my ***, I ended up spending $6K on PARTS... Fortunately, labor was pizza & beer - gotta love the 928 Buckeye Landsharks! The point being, my first car didn't NEED most of the parts we replaced... but I did anyway... WYAIT. I soooooooo feeeeeeeeeeel your pain! Wrap it up before you drain the bank and drive your car. I know you'll have the oil tested in 5K miles and that's a good thing, but I've got $5 that says it'll come back pretty clean Glad Pete's 86.5 landed with such a great guy... Best of luck Dude!

Joel
Hi Joel!
Thanks for the encouragement!
I have definitely gone too far. I have spent $10K on parts on my own after taking possession of the Red Witch last May. That doesn't include the $7K I spent at Auto Assets. Some are needed, some are wanted. I had planned on doing all of them in a reasonable amount of time. That time just ended up coming together now...

Unfortunately, it is not that simple for the oil pans. My oil drain pans are enclosed, and only used for oil products. I drain coolant in another pan. The oil catch pans have recently had engine oil, ATF, gear oil, and brake fluid from other vehicles.
As the oil from the Red Witch drained onto the decks of the catch pans, I could see the fine metallic sheen in the sun.
Deep down, I agree with you. This is probably nothing. I have never seen the oil drained in my 928 yet. I have only driven it 2000 miles. I would assume Auto Assests would have told me if they saw something bad in the oil when the drained it.
I really don't think anything has failed in the engine. But, I HAVE to check for my own sanity.
I am going to put her back together, drive her, and do an oil sample. And go from there.

Thanks for the vote of confidence! Sometimes, I need it. I look out at my 928, sitting on lift bars, many pieces apart, and think that I am a sh*tty steward. I have a vision in my head and a plan in my heart. And the bank is already drained. That's why I have to get this right in one shot.
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Old 03-15-2017, 01:49 AM
  #20
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Originally Posted by skpyle View Post
...
As the oil from the Red Witch drained onto the decks of the catch pans, I could see the fine metallic sheen in the sun....
I am going to put her back together, drive her, and do an oil sample. And go from there.
This^^... Contact Blackstone, request some sample containers. For the next change, drive the car and warm it up, then drain the oil into the usual scuzzy pan. When you pull the drain plug, count to three or four, then stick the sample bottle into the stream and fill it 3/4 full. Seal it up, send it in, post results.

It's like a urine sample, they want a mid-stream catch.

P.S. You need to spend more time driving, less time worrying
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Old 03-15-2017, 02:26 AM
  #21
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Originally Posted by jcorenman View Post
This^^... Contact Blackstone, request some sample containers. For the next change, drive the car and warm it up, then drain the oil into the usual scuzzy pan. When you pull the drain plug, count to three or four, then stick the sample bottle into the stream and fill it 3/4 full. Seal it up, send it in, post results.

It's like a urine sample, they want a mid-stream catch.

P.S. You need to spend more time driving, less time worrying

Thanks, Jim!
I have spent some time on Blackstone's website. I saw that they want a sample in the 'middle'.
Having been in the military, I am entirely too familiar with urine samples.


As for the last part, God, you are so right...
The two months that I drove the Red Witch were GLORIOUS! That is what is driving me now.

Last edited by skpyle; 03-16-2017 at 12:51 AM.
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Old 03-15-2017, 10:16 AM
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You may have done this and I missed it, but all my major projects - brakes & suspension, top end refresh, etc. have had a reward scheduled as a goal to shoot for. Get it ready for SITM, Frenzy, Hershey -and now Camp928. I have made some and missed some, but have always been motivated by the goal, and never discouraged when I didn't make it, because I knew this would be a never-ending story when I started it. YMMV.
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Old 03-15-2017, 01:17 PM
  #23
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Rule #1 of 928 Club is that it oughta be fun. If it isn't, walk away for a while. It's not like the car's gonna go anywhere...
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Old 03-15-2017, 03:11 PM
  #24
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Originally Posted by M. Requin View Post
You may have done this and I missed it, but all my major projects - brakes & suspension, top end refresh, etc. have had a reward scheduled as a goal to shoot for. Get it ready for SITM, Frenzy, Hershey -and now Camp928. I have made some and missed some, but have always been motivated by the goal, and never discouraged when I didn't make it, because I knew this would be a never-ending story when I started it. YMMV.
Thanks, Martin! My goal is SITM 2017. I knew this would be a commitment, but didn't realize I would fall so far so fast.
I'll get it.




Originally Posted by Rob Edwards View Post
Rule #1 of 928 Club is that it oughta be fun. If it isn't, walk away for a while. It's not like the car's gonna go anywhere...
Thanks Rob. I appreciate it.
I am getting wrapped too tight...
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Old 03-15-2017, 05:09 PM
  #25
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Originally Posted by skpyle View Post
Thanks, Greg!

The Red Witch has around 165,000 on her clock. Broken in but not worn out. I think that is high enough mileage to justify checking the rods. A general theme I have picked up from yours and other posts on bearings in a 928 is that if the rod bearings are OK, then the main bearings are likely OK. Though not always. In some of your threads on failing harmonic balancers, you had noted failures of main bearings while the rods looked good.

I am just going to have to hope for the best.
The reality of crankshaft bearings:

I've never seen a worn main bearing kill an engine (except for TBF engine.....and the bearing failure is a result, not the cause.) Main bearings get worn and it is visually obvious that they have wear. The crankcase can get pounded by the main bearings, also. I believe a large amount of this wear is caused by the failure of the crank damper. Obviously, any wear or pounding increases bearing clearance and is not desirable. However, unless the main bearings spin, it is doubtful that an engine failure will ever occur.

Rod bearing wear will kill an engine.....quickly.
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Old 03-16-2017, 12:53 AM
  #26
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Thanks Greg!
That makes sense, and is why I am checking all 8 rod bearing sets.


As an aside, I want to apologize to Jim Corenman. I mistakenly called you 'John.'
Sorry! It has been corrected in the post.
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Old 03-16-2017, 02:24 AM
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Originally Posted by skpyle View Post
Thanks Greg!
That makes sense, and is why I am checking all 8 rod bearings.
This might sound strange...
But hopefully you are wasting your time.
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Old 03-16-2017, 04:48 AM
  #28
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No, I understand!

I want to find 16 happy rod bearing shells with normal wear, ready to be reoiled and put back into service.
I have no problem spending the money on 16 new rod cap nuts.
I have no problem going through the effort of inspecting the bearings.

If I don't, I'll never know.
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Old 03-17-2017, 11:33 AM
  #29
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Best of luck Seth. If you need any extra tooling, especially calibrated torque wrenches, let me know.
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Old 03-18-2017, 12:24 AM
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Hi Chris!

Thank you for the offer! As of right now, I have a decent set of torque wrenches that I trust, 1/4 - 3/4" drive, both click and beam type.
However, if I run into trouble, I will get ahold of you.
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