Notices
Build Threads Building a motor? Post the progress here.

Aidan's loose oily bunghole actually runs a track lap

Thread Tools
 
Search this Thread
 
Old Apr 21, 2022 | 11:10 AM
  #11021  
Scaxx's Avatar
Elite Member
 
Joined: Sep 2015
Posts: 1,654
Total Cats: 887
From: Seattle, WA
Default

As if I won't bug you about it every time I see you
Old Apr 21, 2022 | 02:15 PM
  #11022  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

100% Parts and labor, no deductibles...


Old Apr 21, 2022 | 02:16 PM
  #11023  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Anybody got a lead on ACLs?

5M8353H-STD
Old Apr 21, 2022 | 03:10 PM
  #11024  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Apparently they are unobtanium. Got a set on backorder.

Anyone need some HX bearings?
Old Apr 21, 2022 | 03:18 PM
  #11025  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Reusing rod bolts, yay or neigh?
Old Apr 21, 2022 | 04:10 PM
  #11026  
boileralum's Avatar
Senior Member
iTrader: (8)
 
Joined: Mar 2006
Posts: 1,108
Total Cats: 233
From: Indianapolis, IN
Default

Nay, proper installation involves measuring bolt stretch in many cases. Not worth saving $80 or whatever they are.
Old Apr 21, 2022 | 04:31 PM
  #11027  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

But bolt stretch != bolt yield
Old Apr 21, 2022 | 04:34 PM
  #11028  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

From Ian

Technically, in order to reuse rodbolts you need to have the measurements from before they were torqued, so that you can re-measure them and determine if they've stretched beyond their elastic limit. I think machine shops will usually give you the measurements when they assemble a motor for you (dunno, I've done it myself the two times I've build bottom ends), so you might ask the PO if he's got a set of measurements.

If not, then you're taking a risk by reusing them. I think rodbolt failures are usually due to tensile loading rather than compressive loading, and detonation is more about compression, so that would argue that as long as they were torqued properly (ideally with a rodboltstretch gauge, not a torque wrench) they should be fine.
I used his rod bolt stretch gauge last time (Can i borrow that@codrus ?)

I swear i wrote down the numbers...
Old Apr 21, 2022 | 06:36 PM
  #11029  
EO2K's Avatar
Elite Member
iTrader: (37)
 
Joined: Apr 2010
Posts: 10,477
Total Cats: 1,924
From: Very NorCal
Default

Maybe it's on your GIT
Old Apr 21, 2022 | 10:11 PM
  #11030  
codrus's Avatar
Elite Member
 
Joined: Mar 2007
Posts: 5,298
Total Cats: 884
From: Santa Clara, CA
Default

Originally Posted by aidandj
I used his rod bolt stretch gauge last time (Can i borrow that@codrus ?)
The stretch gauge I have is relative (it uses a dial indicator), not absolute, so you can't use it to check for plastic deformation of the bolt during service. You need a micrometer for that.

I'll have to see if I can find the stretch gauge -- it should be in my toolbox, but I loaned it to someone else a year or so ago and I don't remember if I ever got it back. I'm currently at Thunderhill, email/IM/whatever me next week to remind me to check when I get home?

--Ian
Old Apr 22, 2022 | 10:39 AM
  #11031  
rleete's Avatar
Elite Member
iTrader: (21)
 
Joined: Jun 2007
Posts: 6,794
Total Cats: 1,342
From: Rochester, NY
Default

Originally Posted by EO2K
Maybe it's on your GIT
??? I though Braineack was the git?
Old Apr 22, 2022 | 02:50 PM
  #11032  
curly's Avatar
Cpt. Slow
iTrader: (25)
 
Joined: Oct 2005
Posts: 15,197
Total Cats: 1,398
From: Oregon City, OR
Default

I wouldn’t personally run the race bearings. I run OE rods and Mahle mains. proven over many years by John Mann, and by my own oil analysis. that being said, I may have a set of STD ACL race bearings from John Mann’s spares, now owned by Martin, I can check when I get home.
Reply
Leave a poscat -1 Leave a negcat
Old Apr 22, 2022 | 03:09 PM
  #11033  
curly's Avatar
Cpt. Slow
iTrader: (25)
 
Joined: Oct 2005
Posts: 15,197
Total Cats: 1,398
From: Oregon City, OR
Default

Oh sorry, saw your FS thread. You made it sound like you needed some
Old Apr 22, 2022 | 03:17 PM
  #11034  
Scaxx's Avatar
Elite Member
 
Joined: Sep 2015
Posts: 1,654
Total Cats: 887
From: Seattle, WA
Default

I think he needs the standards, but he had a set of HX on the shelf

Last edited by Scaxx; Apr 22, 2022 at 04:37 PM. Reason: HX not HXL
Old Apr 22, 2022 | 04:29 PM
  #11035  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Yeah, what he said.

Let me know if you have the STD main bearings around.
Old Apr 23, 2022 | 09:46 AM
  #11036  
curly's Avatar
Cpt. Slow
iTrader: (25)
 
Joined: Oct 2005
Posts: 15,197
Total Cats: 1,398
From: Oregon City, OR
Default

Yes, I have a set of 5M8353H-STD. Let me chat with Martin, see how much he wants for them.
Old Apr 23, 2022 | 09:47 AM
  #11037  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Originally Posted by curly
Yes, I have a set of 5M8353H-STD. Let me chat with Martin, see how much he wants for them.
Thanks. Let me check with Ed and see if I can cancel the backorder.
Old Apr 27, 2022 | 12:49 AM
  #11038  
Mobius's Avatar
Elite Member
iTrader: (2)
 
Joined: May 2008
Posts: 3,469
Total Cats: 365
From: Portland, Oregon
Default wait

Ok. My man needs the truths.

First: Minivan Suck it. One million man hours, not kiddning, focussed entirely upon you.

OMG who posted / posited this truth?
Old Apr 27, 2022 | 12:59 AM
  #11039  
Scaxx's Avatar
Elite Member
 
Joined: Sep 2015
Posts: 1,654
Total Cats: 887
From: Seattle, WA
Default

Originally Posted by Mobius
Ok. My man needs the truths.

First: Minivan Suck it. One million man hours, not kiddning, focussed entirely upon you.

OMG who posted / posited this truth?
Richard, how drunk are you right now?
Old Apr 27, 2022 | 01:12 AM
  #11040  
aidandj's Avatar
Thread Starter
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

Originally Posted by curly
Yes, I have a set of 5M8353H-STD. Let me chat with Martin, see how much he wants for them.
Lars had a set laying around. Thanks though.



All times are GMT -4. The time now is 09:52 PM.