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

Timing Help (again)

Thread Tools
 
Search this Thread
 
Old May 31, 2007 | 01:19 PM
  #1  
Demonic85's Avatar
Demonic85
Thread Starter
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default Timing Help (again)

I posted a thread earlier about my "really bad timing". Turns out it was the timing giving me all that trouble. However i'm back in the same situation with the distributor. I have it with the rotor facing the correct direction but I cant seem to be able to rotate it far enough to the left (its hitting the plenum) to get it stay running. When its pushed up against the plenum it will fire and run extremely rough, not good. How do I adjust the distributor so I can fix this?

Note: Oh and I thought I might mention that my cap only goes on one way.

Last edited by Demonic85; May 31, 2007 at 01:24 PM. Reason: add note
Reply
Old May 31, 2007 | 01:26 PM
  #2  
RRT vette's Avatar
RRT vette
Le Mans Master
15 Year Member
 
Joined: Feb 2006
Posts: 8,753
Likes: 9
From: Louisiana
Default

Hitting the plenum or intake manifold? Make sure the oil pump shaft is going down correctly.
Reply
Old May 31, 2007 | 01:32 PM
  #3  
Demonic85's Avatar
Demonic85
Thread Starter
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default

Originally Posted by RRT vette
Hitting the plenum or intake manifold? Make sure the oil pump shaft is going down correctly.
Yes the distributor is fully seated, only goes in 2 ways (Compression stroke and exhaust stroke). Its in the right way, but the cap is hitting the top of the plenum.
Reply
Old May 31, 2007 | 01:54 PM
  #4  
Pete K's Avatar
Pete K
Race Director
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Feb 2004
Posts: 12,517
Likes: 19
Default

You need to move the distibutor shaft 1 tooth counter clockwise to allow the distributor enough range of motion to set the timing where you wish.
Reply
Old May 31, 2007 | 02:05 PM
  #5  
aheaton's Avatar
aheaton
Heel & Toe
10 Year Member
 
Joined: May 2007
Posts: 21
Likes: 0
From: UT
Default harmonic balancer

I suggest that you verify TDC of #1 comp stroke and then look at your distributor. Verify TDC with the spark plug out . It could very well be a bad balancer. Once you have TDC, make your own mark, and then recheck timing. You will be able to get timing close, and then change the balancer, and reset timing. That happened to my 85. The distibutor is either on or 180* out. Good Luck.

Last edited by aheaton; May 31, 2007 at 02:09 PM. Reason: clearify
Reply
Old May 31, 2007 | 02:05 PM
  #6  
Demonic85's Avatar
Demonic85
Thread Starter
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default

Originally Posted by Pete K
You need to move the distibutor shaft 1 tooth counter clockwise to allow the distributor enough range of motion to set the timing where you wish.
Ahhh I see. I'll go try that, thanks Pete.
Reply
Old May 31, 2007 | 02:39 PM
  #7  
Demonic85's Avatar
Demonic85
Thread Starter
Team Owner
 
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Default

Hey moving the tooth worked quite well. I would have never thought of that.
Reply
Old May 31, 2007 | 08:54 PM
  #8  
MR NICE's Avatar
MR NICE
Drifting
 
Joined: Nov 2005
Posts: 1,361
Likes: 0
From: Downriver Mi.
Default

Originally Posted by 4Ever21
Hey moving the tooth worked quite well. I would have never thought of that.
Well glad to here you got it right ,once you know how it's simple.
Reply

Get notified of new replies

To Timing Help (again)

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Michael S. Palmer
story-1

2027 Corvette vs The World: Every Model vs Closest Competitor

 Joe Kucinski
story-2

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
story-3

5 MOST and 5 LEAST Popular Corvette Model Years in History!

 Joe Kucinski
story-4

2027 Corvette Buyer's Guide: Everything You Need to Know!

 Joe Kucinski
story-5

10 Things C8 Corvette Owners Hate (But Won't Tell You)

 Joe Kucinski
story-6

10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

 Brett Foote
story-7

Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

 Joe Kucinski
story-8

Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

 Michael S. Palmer
story-9

5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

 Joe Kucinski




All times are GMT -4. The time now is 05:04 PM.

story-0
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-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
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
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE