The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain > LSx Swaps

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-23-2014, 08:33 PM   #1
Smurfeh
Registered User
 
Join Date: Feb 2012
Location: Yellowknife, NWT, Canada
Posts: 63
Oil pump priming

Alright getting close to starting up my second 5.3. The both engines are from 2007's new body style with AFM. Now this engine has sat on a stand for 3 years.. I would assume that I would need to prime the oil pump like I would on an old sbc? Usually I would have just pulled the dist and put a long common screwdriver down and prime it that way, but with the newer engine obviously doesn't have a dist.. what have you guys done to your engines after they have sat for 3+ years on a stand? obviously don't want to fire it up without seeing oil Px within the first 10 seconds.. suggestions?
Smurfeh is offline   Reply With Quote
Old 02-23-2014, 09:09 PM   #2
crazy longhorn
Fabricate till you "puke"
 
Join Date: Jun 2002
Location: Ill
Posts: 9,402
Re: Oil pump priming

Disable the ign & fuel to the engine, remove the spark plugs....crank the starter 15-20 seconds at a time, until you see pressure @ the guage. After that, plug it all back in, & fire her up? Longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
crazy longhorn is offline   Reply With Quote
Old 02-23-2014, 09:32 PM   #3
truckdude239
Senior Member
 
truckdude239's Avatar
 
Join Date: Sep 2005
Location: Lewisville, Nc
Posts: 10,237
Re: Oil pump priming

Your going to have to turn it over cause the oil pump is driven off front the crank
__________________
David fuller
Ase Certified Mechanic
Click here to help support our board!!


1971 Chevy c-10 under going a 4.8l LSx swap

Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=421305

2007 Honda Accord my daily 145kmiles
2002 Honda Accord 4 door With 330k(sisters car)
2005 toyota Avalon 228k( brothers car)
2002 Sububran 5.3 245k
2000 Tahoe 5.3l 378

General manager for Marco's Carwash & lube
truckdude239 is offline   Reply With Quote
Old 02-23-2014, 11:04 PM   #4
BR3W CITY
meowMEOWmeowMEOW
 
BR3W CITY's Avatar
 
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
Re: Oil pump priming

There is a tool for this, and you can build one yourself.

Its a force primer, sorta like a reverse brake bleeder, or the lift pumps you would use for lubing a rear end.

Ls1tech and youtube have how-to's on making one.
__________________
'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING

MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD
BR3W CITY is offline   Reply With Quote
Old 02-27-2014, 04:01 AM   #5
mcmlxix
Collector of Projects
 
mcmlxix's Avatar
 
Join Date: Apr 2003
Location: Las Vegas
Posts: 3,106
Re: Oil pump priming

HERE is an example that uses an electric pump.... notice the port where the primer pump is attached...




HERE is the Garden Sprayer method...

__________________
Rich
1972 K5 Blazer CST Click HERE

D60 BIG BRAKE UPGRADE Click HERE
mcmlxix is offline   Reply With Quote
Old 02-27-2014, 11:44 AM   #6
Angryman117
Registered User
 
Join Date: Jul 2013
Location: VAFB, CA
Posts: 227
Re: Oil pump priming

Quote:
Originally Posted by crazy longhorn View Post
disable the ign & fuel to the engine, remove the spark plugs....crank the starter 15-20 seconds at a time, until you see pressure @ the guage. After that, plug it all back in, & fire her up? Longhorn
Did mine the same way, no need to overcomplicate it.
__________________
Angryman117's
47 Chevy Build
89 Silverado Z71 LS Swap (sold)
Angryman117 is offline   Reply With Quote
Old 03-02-2014, 08:35 PM   #7
Operatorfailure
Registered User
 
Join Date: Apr 2011
Location: Springfield, MO
Posts: 172
Re: Oil pump priming

I have done the pull coil wires and plugs crank the key until you get pressure on two different swaps and no problems. I'm not going to lie though, I was nervous both times.
__________________
My 68 Stepper build
Operatorfailure is offline   Reply With Quote
Old 03-02-2014, 09:06 PM   #8
crazy longhorn
Fabricate till you "puke"
 
Join Date: Jun 2002
Location: Ill
Posts: 9,402
Re: Oil pump priming

Not to "muddy the waters here"....I can see the point to do a power prime on that high end engine. On a stocker, that has already run in, I don't see the need to? That roller cam , stock lobes, or mild profiles just wont have any issues that we have seen with the flat tappet hyd grinds? If the bearings are lubbed, you should be good to go Longhorn
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
crazy longhorn is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 03:09 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com