|
|
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: 2,314
Likes: 25
Liked 544 Times in 213 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 Stock 147R |
|
|
|
|
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: 454
Likes: 1,785
Liked 345 Times in 149 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 PMR Performance S/C 1623 |
|
|
|
|
02-07-2016, 10:37 AM
|
#6 |
|
Senior Member
Join Date: Nov 2005
Location: Verrry South Jersey
Posts: 537
Likes: 134
Liked 251 Times in 125 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: 2,473
Likes: 882
Liked 858 Times in 234 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: 567
Likes: 306
Liked 278 Times in 86 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: 913
Likes: 1,125
Liked 679 Times in 202 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. |
|
|
|
 |
|
|
Linear Mode
