C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Oil primer

Thread Tools
 
Search this Thread
 
Old Dec 29, 2017 | 06:49 AM
  #1  
c3_dk's Avatar
c3_dk
Thread Starter
Safety Car
15 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jan 2008
Posts: 3,794
Likes: 430
From: Aarhus, Denmark
Default Oil primer

I think I have a problem here, I guess that is what I've had problems getting oil to some of the rocker arms.

I will make a new, that will be like the HEI unit.


Reply
Old Dec 29, 2017 | 09:02 AM
  #2  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

I guess I'm not seeing the issue. Looks fine to me. I believe that is a Moroso unit.
As long as you are getting a good seal and oil is not coming out of the dizzy hole, its fine.
You may not always get a gusher at the rockers. It will depend on where the lifter is in the bore in relation to the oil holes in the oil galley. So, rotate the crank a half a turn and hit the primer tool again with several hundred RPMs. It may also take a long time for oil to show up at the rocker. I have heard stories of taking over 20-30 minutes to get oil showing up.
The main thing is your gauge reading. I hope you are using a drill with gobs of torque.
And obviously you will have to set the timing marks at TDC before dropping in the dizzy.

Last edited by HeadsU.P.; Dec 29, 2017 at 09:16 AM.
Reply
Old Dec 29, 2017 | 09:04 AM
  #3  
Rodnok1's Avatar
Rodnok1
Melting Slicks
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Sep 2016
Posts: 3,004
Likes: 104
From: NC
Default

Reply
Old Dec 29, 2017 | 11:45 AM
  #4  
c3_dk's Avatar
c3_dk
Thread Starter
Safety Car
15 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jan 2008
Posts: 3,794
Likes: 430
From: Aarhus, Denmark
Default

Originally Posted by HeadsU.P.
I guess I'm not seeing the issue. Looks fine to me. I believe that is a Moroso unit.
As long as you are getting a good seal and oil is not coming out of the dizzy hole, its fine.
You may not always get a gusher at the rockers. It will depend on where the lifter is in the bore in relation to the oil holes in the oil galley. So, rotate the crank a half a turn and hit the primer tool again with several hundred RPMs. It may also take a long time for oil to show up at the rocker. I have heard stories of taking over 20-30 minutes to get oil showing up.
The main thing is your gauge reading. I hope you are using a drill with gobs of torque.
And obviously you will have to set the timing marks at TDC before dropping in the dizzy.
Great, thx I didn't know this
Reply
Old Dec 29, 2017 | 12:30 PM
  #5  
HeadsU.P.'s Avatar
HeadsU.P.
Le Mans Master
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Aug 2017
Posts: 8,336
Likes: 2,809
From: Cool Northern Michigan
Default

Problem solved. Forum reference number: BS #2.
That will be $119.
How would you like to make your payment? Would you prefer installments?

Last edited by HeadsU.P.; Dec 29, 2017 at 07:34 PM.
Reply
Old Dec 29, 2017 | 12:39 PM
  #6  
NeverTooOld's Avatar
NeverTooOld
Racer
 
Joined: Nov 2017
Posts: 289
Likes: 32
Default

When I prime my engines I spin the oil pump for about a minute at #1 TDC, then a minute at #4 TDC, then a minute at #6 TDC, then a minute at #7. That'll usually fill all 16 of the lifters.
Reply
Old Dec 29, 2017 | 01:11 PM
  #7  
c3_dk's Avatar
c3_dk
Thread Starter
Safety Car
15 Year Member
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jan 2008
Posts: 3,794
Likes: 430
From: Aarhus, Denmark
Default

Originally Posted by HeadsU.P.
Problem solved. Forum reference BS #2.
That will be $119.
How would you like to make your payment? Would you prefer installments?
?

Originally Posted by NeverTooOld
When I prime my engines I spin the oil pump for about a minute at #1 TDC, then a minute at #4 TDC, then a minute at #6 TDC, then a minute at #7. That'll usually fill all 16 of the lifters.
Reply
Old Jan 1, 2018 | 10:54 AM
  #8  
68notray's Avatar
68notray
Pro
 
Joined: Dec 2014
Posts: 699
Likes: 46
From: Charlotte NC
Default

Just curious - why is it important to prime until you get oil to the rockers? If you used assembly lube all that matters is oil to the bearings IMHO
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jan 1, 2018 | 10:59 AM
  #9  
Dynra Rockets's Avatar
Dynra Rockets
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2012
Posts: 1,152
Likes: 252
Default

Originally Posted by 68notray
Just curious - why is it important to prime until you get oil to the rockers? If you used assembly lube all that matters is oil to the bearings IMHO
I do it to verify oil is getting to where it needs to, ie, there are no restrictions in the pushrods or lifters.
Reply
Old Jan 1, 2018 | 03:17 PM
  #10  
PAmotorman's Avatar
PAmotorman
Melting Slicks
15 Year Member
 
Joined: May 2007
Posts: 2,415
Likes: 154
Default

if you are using edge orifice solid lifter fill them with oil before you install them as this will speed up getting oil to the rockers.
Reply

Get notified of new replies

To Oil primer





All times are GMT -4. The time now is 04:40 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE