|
02-06-2016, 05:08 PM
|
#1 |
|
Member
Join Date: Jun 2002
Location: Red Oak, TX
Posts: 441
Likes: 0
Liked 0 Times in 0 Posts
|
which main and rod bearing to check first?
OK, on a "good" running small block Chevy engine, no visible or audible issues...
If I want to take a quick look at a main bearing and rod bearing, looking for general condition of bearings, which would you pull? Know it is best to look at everything, and know that any one could be an odd draw, if machine issues were off, etc. Just looking for opinions. thanks Ken |
|
|
|
02-06-2016, 05:54 PM
|
#2 |
|
VIP Member
Join Date: Jun 2007
Location: Northern New Jersey suburbs
Posts: 2,275
Likes: 25
Liked 510 Times in 200 Posts
|
Re: which main and rod bearing to check first?
More times than not when a SB spins a bearing and breaks a rod for some reason it was usually on #5 and 6 rod journal....
I have no good reason why that is true but saw it many times...
__________________
Rich Biebel S/C 1479 |
|
|
|
|
02-06-2016, 08:52 PM
|
#3 |
|
Member
Join Date: Oct 2011
Posts: 125
Likes: 47
Liked 21 Times in 9 Posts
|
Re: which main and rod bearing to check first?
I agree with Rich, been my experience too. If you use a trans brake,with a loose converter,the thrust bearing wears quickly.
|
|
|
|
|
02-06-2016, 10:11 PM
|
#4 |
|
Member
Join Date: Jun 2002
Location: Red Oak, TX
Posts: 441
Likes: 0
Liked 0 Times in 0 Posts
|
Re: which main and rod bearing to check first?
Thanks Guys.
Much appreciated. Ken |
|
|
|
|
02-06-2016, 10:26 PM
|
#5 |
|
Member
Join Date: Aug 2010
Location: CT
Posts: 383
Likes: 1,249
Liked 247 Times in 106 Posts
|
Re: which main and rod bearing to check first?
Normally I'll look at #2 and #4 mains, as any crank flex usually shows up there first.
__________________
Phil Molski S/C 1623 |
|
|
|
|
02-07-2016, 10:37 AM
|
#6 |
|
Senior Member
Join Date: Nov 2005
Location: Verrry South Jersey
Posts: 529
Likes: 125
Liked 223 Times in 118 Posts
|
Re: which main and rod bearing to check first?
I have a 350 in a work truck with a knock. A friend who owns a repair shop told me to pull the ones farthest from the oil pump first.
I haven't been able to do it yet. I had shoulder surgery in the fall and can't work over head. Something tells me a new short block is in my future... |
|
|
|
02-07-2016, 12:32 PM
|
#7 | |
|
Member
Join Date: Mar 2013
Location: Greentown, IN
Posts: 113
Likes: 0
Liked 0 Times in 0 Posts
|
Re: which main and rod bearing to check first?
2 and 4 on mains due to crank bending on rods I was taught to do the first pair of rods that get oil from pump. Reason if pump sucks air (runs out of oil) it will show up there rod journal 1 & 5 on a small block Ford.
Quote:
|
|
|
|
|
|
02-07-2016, 01:37 PM
|
#8 | |
|
VIP Member
Join Date: Jan 2003
Location: Allentown,PA
Posts: 2,435
Likes: 774
Liked 699 Times in 203 Posts
|
Re: which main and rod bearing to check first?
Quote:
__________________
Tom Goldman 1500 SG , 1506 STK |
|
|
|
|
|
02-07-2016, 06:03 PM
|
#9 |
|
Senior Member
Join Date: Jun 2011
Location: Langley (no igloos), British Columbia, Canada
Posts: 550
Likes: 269
Liked 226 Times in 77 Posts
|
Re: which main and rod bearing to check first?
If the pan is off. Why not check all of them for the time it takes? That way you won't be wondering. MB.
|
|
|
|
|
02-07-2016, 09:23 PM
|
#10 |
|
Senior Member
Join Date: Dec 2002
Posts: 869
Likes: 916
Liked 604 Times in 177 Posts
|
Re: which main and rod bearing to check first?
I used to buy 454 core Chev engines. If 5 & 6 rod bearings were good, the rest were good. If they were bad, you usually would find a burned main bearing.
Last edited by Dyno; 02-08-2016 at 03:15 PM. |
|
|
|
 |
«
Previous Thread
|
Next Thread
»
| Thread Tools | |
| Display Modes | |
Linear Mode
|
|
All times are GMT -4. The time now is 01:32 PM.