[help] assembly oil priming (sbc) - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-23-2005, 08:39 PM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
[help] assembly oil priming (sbc)

Quick question/concern. I was priming my oil pump and engine today and I am confused about something. I ran the primer rod on a drill up to about 40psi oil pressure for like 5 minutes. For the first minute or so nothing was coming up through the valve train (pressure was holding good on guage though). After a minute or two i got a little oil out of one of the rockers on the drivers side. After about 5 minutes i finally got oil out of every drivers side rocker but still nothing on the pass side.

Should this be a concern? Should I prime for longer? Could this be an affect of the rocker adjustment or something else?

This is on hyd lifter assembly sbc

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-23-2005, 08:41 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,892
Wiki Edits: 5

Thanks: 20
Thanked 257 Times in 210 Posts
Sounds perfectly normal....it takes time to get the oil to the top of the engine. The pressure is read down by the pump.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-23-2005, 08:59 PM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Ok well that's a partial relief. I figured it probably would take a while.

So my only other question is... should I keep priming it until it finally does come out the other side or should I call it good at 5 minutes or so and assume that the engine will pump itself good after that?
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-23-2005, 09:05 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,892
Wiki Edits: 5

Thanks: 20
Thanked 257 Times in 210 Posts
The more the better, but 5 min should be fine. 5 minutes would be pretty hard on the drill......or should be, if the pump is pumping good.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-23-2005, 09:14 PM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by poncho62
The more the better, but 5 min should be fine. 5 minutes would be pretty hard on the drill......or should be, if the pump is pumping good.
Haha yeah the drill did start smelling funny after a bit. I also had to re-tighten the chuck a few time when I cranked it up. If I have to I will switch to my industrial mega 1/2 concrete drill
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-23-2005, 09:22 PM
BigDawgsEatFirst's Avatar
400SBC4Life
 
Last photo:
Join Date: Aug 2004
Location: Tac-Washington
Age: 40
Posts: 389
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
you should be able to put in a old dizzy with cam gear grinded off and
just turn pump with vise grips and see oil flowing out of rocker slots and air hissing out of pushrods
you are propably ok
40 pounds on gauge
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 08-23-2005, 10:42 PM
Registered User
 
Join Date: Aug 2005
Location: Fontana, California
Posts: 3
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
oil flow concern

Quote:
Originally Posted by KNanthrup
Quick question/concern. I was priming my oil pump and engine today and I am confused about something. I ran the primer rod on a drill up to about 40psi oil pressure for like 5 minutes. For the first minute or so nothing was coming up through the valve train (pressure was holding good on guage though). After a minute or two i got a little oil out of one of the rockers on the drivers side. After about 5 minutes i finally got oil out of every drivers side rocker but still nothing on the pass side.

Should this be a concern? Should I prime for longer? Could this be an affect of the rocker adjustment or something else?

This is on hyd lifter assembly sbc
yes you should be concerned it could be a sign of several things, the first in my mind is are you sure your passages were clear before assy, the rod bearings can cause flow problems if not correct, it travels thru the lifter galleys to the rockers so keep that in mind as well
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 08-23-2005, 11:03 PM
sbchevfreak's Avatar
Licenced Automotive Technician
 
Last photo:
Join Date: Feb 2004
Location: Land of big Easter eggs, Alberta
Age: 34
Posts: 1,604
Wiki Edits: 0

Thanks: 8
Thanked 9 Times in 9 Posts
I have found on several builds that having someone rotate the crank while priming helps to distribute oil more evenly to the valvetrain.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 08-24-2005, 12:19 AM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
yeah i was thinking that maybe cranking it would help too. tomorrow ill run the pump for even longer and see if i can get something to come out of the other side. it took a long time to get oil to come out of all the rockers on one side so it may still be a while.

i have a hard time believing that every rocker on one side but no rockers on the other would get oil pumped through or blocked due to a clogging in the rods. I don't know.. i guess ill just work with it some more. the main thing for me is i just want to be sure before i have the engine completely sealed up and in the truck if something is wrong.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 08-24-2005, 02:22 AM
BigDawgsEatFirst's Avatar
400SBC4Life
 
Last photo:
Join Date: Aug 2004
Location: Tac-Washington
Age: 40
Posts: 389
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
well first i made a toolto turn pump...but i found out i need it to be like a distributor to seal....that got the lifters pumped up
You will have to prime that engine for a long time to get the oil up into the lifters and onto the rockers. Just be patient and will come out if the lifter galleries are sealed with your tool that you are using.
At first I had intake off and got pressure but oil was not flowing from both sides like your engine.
I put on intake and dizzy(distributor) and she sealed up lifter valley quick, like 10 full turns and air started hissing and oil came over rockers like she was running
plus (like said )the rotation of engine helps also.
If you get oil out of all rockers (or Most) now that is one less thing to worry about later.

Last edited by BigDawgsEatFirst; 08-24-2005 at 02:33 AM.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 08-24-2005, 07:24 PM
Member
 
Join Date: Mar 2003
Location: Indiana
Posts: 296
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
There are 2 different types of primers. If you have the cheaper one it will only prime one side of the engine.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 08-24-2005, 08:50 PM
Member
 
Last photo:
Join Date: Dec 2004
Location: Issaquah, WA
Posts: 288
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by syclone
There are 2 different types of primers. If you have the cheaper one it will only prime one side of the engine.
OHHH kay, well that explains it all right there. I'm glad you said that. I think mine is the cheap one, it's just a rod to turn the pump with. So is it not doing the other side because it's not sealing the oil galleries or something? I'm using the same oiling system as I was before i tore it apart and it worked fine before so im not too worried but i just wanted to be sure.
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 08-24-2005, 09:34 PM
Jmark's Avatar
Registered User
 
Last photo:
Join Date: Sep 2003
Location: phoenix
Age: 61
Posts: 4,815
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by syclone
There are 2 different types of primers. If you have the cheaper one it will only prime one side of the engine.
HuH? Thats a new on for me. If you are using a straight rod to the pump. the oil just runs out the hole that is where the dist housing goes. Usually get a big "0" on oil pressure that way. (its a pretty big hole)
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 08-24-2005, 09:44 PM
BigDawgsEatFirst's Avatar
400SBC4Life
 
Last photo:
Join Date: Aug 2004
Location: Tac-Washington
Age: 40
Posts: 389
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
priming the engine oil
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 10-22-2008, 07:03 PM
drive it like you stole it
 
Last photo:
Join Date: Oct 2008
Location: metcalf, IL
Age: 30
Posts: 51
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Did the same thing on my fresh rebuild only I took all my valvetrain back off the right side before realizing the problem. The dist. acts as a passage for the oil to get from the left side across to the right. I ended up putn my intake, dist, and hooking up a starter to spin motor (no spark plugs spins faster). Eureka oil on both sides!
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sbc Oil Pressure - How Much Is 2 Much? HJCHEVY400 Engine 24 04-16-2004 01:50 PM
Late model LT 1 oil system priming craigw Engine 4 12-04-2003 08:46 PM
oil pump priming MardyMar Engine 1 05-03-2003 03:46 AM
priming the engine oil MardyMar Engine 3 05-02-2003 06:57 PM
SBC oil Camaro76 Engine 7 02-18-2003 01:54 AM


All times are GMT -6. The time now is 08:07 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.