Bottom end bearing scratched

Thread Tools
 
Search this Thread
 
Old Mar 27, 2019 | 04:26 PM
  #1  
pacurcouch's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Nov 2013
Posts: 4
Likes: 0
Default Bottom end bearing scratched

Hey i just got my D16A back from the machine shop, is this bad if its scratched, where the bearings and crankshaft sit? Can i still use it.


1st scratch, one long one



Middle one
Reply
Old Mar 27, 2019 | 08:06 PM
  #2  
motoxxxman's Avatar
Honda-Tech Member
 
Joined: Mar 2005
Posts: 2,428
Likes: 11
From: CT, US
Default Re: Bottom end bearing scratched

you said you picked the block up from the machine shop like that?
Was it like that before you dropped it off?
Makes me wonder if the machine shop switched your block with someone else's. That happens more often than you might think.

To answer your question, it might be useable. But I definitely wouldn't use it in my car.
Reply
Old Mar 27, 2019 | 10:19 PM
  #3  
JRCivic1's Avatar
Honda-Tech Member
10 Year Member
Community Builder
Active Streak: 60 Days
Liked
 
Joined: Jan 2013
Posts: 10,016
Likes: 1,234
From: The South - Roll Tide !!!
Default Re: Bottom end bearing scratched

Based on the pics that you have posted... I would say that block is junk. Scrap money.
Reply
Old Mar 30, 2019 | 02:52 AM
  #4  
pacurcouch's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Nov 2013
Posts: 4
Likes: 0
Default Re: Bottom end bearing scratched

Originally Posted by motoxxxman
you said you picked the block up from the machine shop like that?
Was it like that before you dropped it off?
Makes me wonder if the machine shop switched your block with someone else's. That happens more often than you might think.

To answer your question, it might be useable. But I definitely wouldn't use it in my car.
what happens if i use it? It will spin a bearing?
Reply
Old Mar 30, 2019 | 04:37 AM
  #5  
motoxxxman's Avatar
Honda-Tech Member
 
Joined: Mar 2005
Posts: 2,428
Likes: 11
From: CT, US
Default Re: Bottom end bearing scratched

Originally Posted by pacurcouch
what happens if i use it? It will spin a bearing?
It can put uneven pressure on different parts of the bearing, which warps the bearing and causes drastically uneven wear spots. Which also overheats the bearing, and can cause it to collapse, and then finally yes spin the bearing.
Reply
Old Mar 30, 2019 | 06:01 AM
  #6  
D21X's Avatar
Honda-Tech Member
 
Joined: Feb 2000
Posts: 1,871
Likes: 0
From: Wi, USA
Default Re: Bottom end bearing scratched

Yup block is junk. Pic of middle one, looks like it got compressed towards the left side, no good.

I would go back to the machine shop and tell them they screwed up.
Reply
Old Mar 30, 2019 | 04:59 PM
  #7  
motoxxxman's Avatar
Honda-Tech Member
 
Joined: Mar 2005
Posts: 2,428
Likes: 11
From: CT, US
Default Re: Bottom end bearing scratched

Originally Posted by motoxxxman
you said you picked the block up from the machine shop like that?
Was it like that before you dropped it off?
Makes me wonder if the machine shop switched your block with someone else's. That happens more often than you might think.
^this?
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Turbo_TONY
Forced Induction
19
Jan 31, 2009 11:32 AM
neil-ste
Tech / Misc
5
Jan 26, 2008 03:29 PM
turbotime
Forced Induction
21
Mar 24, 2006 05:33 PM
BoOsTiN Dc2
Forced Induction
5
Mar 15, 2004 06:47 PM
redman223
All Motor / Naturally Aspirated
3
Jan 2, 2004 06:53 PM




All times are GMT -8. The time now is 06:25 PM.