C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Distributor Position

Thread Tools
 
Search this Thread
 
Old Jul 20, 2009 | 06:38 PM
  #1  
Pwnage1337's Avatar
Pwnage1337
Thread Starter
Tech Contributor
15 Year Member
 
Joined: Oct 2008
Posts: 3,729
Likes: 190
From: Custer, WI
Default Distributor Position

When I took the distributor out because I was going to port my base, I forgot which cylinder the rotor was facing.

I marked the distributor and the rotor, and I also marked the hood seal to the ignition coil to remember where the timing was.

Now this is the problem...when I put the distributor in, the marks on the rotor and the distributor base are on the back of the car facing the firewall. Also, the distributor will not go all the way down to the base. There is about a half inch gap.

I can't remember if I marked the rotor and distributor when it was facing towards the front of the car, or the back.

When I mocked up the coil and the distributor, the coil mark and hood seal mark line up, but it doesn't seem right to me that the rotor and distributor marks are facing the rear of the car because I dont see how I would have been able to get a marker in there.

Is there any way to check?

HELP!!
Reply
Old Jul 20, 2009 | 07:57 PM
  #2  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,293
Likes: 240
From: Summerland B.C. Canada
Default

Mark dizzy base where #1 is on cap
Pull the dizzy back out
Pull # 1 plug and stick you finger in the hole
Have someone jog the key until you feel the cylinder pressure pushing your finger.
Rotate balancer until mark lines up with 6* BTDC
Drop dizzy back in so the base is in a position that will allow for adjustment (it's crowded on drivers side)
The rotor is going to turn as the gears mesh, so have it in a position that will end up at the mark you put on base, when dizzy is fully seated.

The problem your having with the dizzy not seating, is the mating of dizzy to oil pump drive shaft. Most times a long flat blade screwdriver is need to stick down dizzy hole and adjust pump drive shaft into a position that will mate with dizzy.

This is probably not the answer you were looking for, but at least there is no guessing.
Reply
Old Jul 20, 2009 | 07:59 PM
  #3  
AGENT 86's Avatar
AGENT 86
Team Owner
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Active Streak: 90 Days
 
Joined: Jan 2003
Posts: 20,293
Likes: 240
From: Summerland B.C. Canada
Default

http://members.shaw.ca/agent86/Spark...g%20Wiring.pdf
Reply
Old Jul 21, 2009 | 11:22 AM
  #4  
engle1147's Avatar
engle1147
Le Mans Master
Supporting Lifetime
 
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
Default

Originally Posted by AGENT 86
Most times a long flat blade screwdriver is need to stick down dizzy hole and adjust pump drive shaft into a position that will mate with dizzy.
Reply
Old Jul 21, 2009 | 01:54 PM
  #5  
ch@0s's Avatar
ch@0s
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 9,758
Likes: 49
From: Houston Texas
Default

Originally Posted by AGENT 86
Mark dizzy base where #1 is on cap
Pull the dizzy back out
Pull # 1 plug and stick you finger in the hole
Have someone jog the key until you feel the cylinder pressure pushing your finger.
Rotate balancer until mark lines up with 6* BTDC
Drop dizzy back in so the base is in a position that will allow for adjustment (it's crowded on drivers side)
The rotor is going to turn as the gears mesh, so have it in a position that will end up at the mark you put on base, when dizzy is fully seated.

The problem your having with the dizzy not seating, is the mating of dizzy to oil pump drive shaft. Most times a long flat blade screwdriver is need to stick down dizzy hole and adjust pump drive shaft into a position that will mate with dizzy.

This is probably not the answer you were looking for, but at least there is no guessing.
Reply

Get notified of new replies

To Distributor Position





All times are GMT -4. The time now is 12:11 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE