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

Timing Tab Missing

Thread Tools
 
Search this Thread
 
Old Jan 24, 2010 | 09:22 PM
  #1  
quimbysr's Avatar
quimbysr
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2007
Posts: 117
Likes: 1
From: Mexico Beach FL
Default Timing Tab Missing

Looks like the clown who had my 85 before I did lost the timing tab. Does anyone know of anything I can do short of getting a new timing chain cover?
Reply
Old Jan 24, 2010 | 10:37 PM
  #2  
quimbysr's Avatar
quimbysr
Thread Starter
Instructor
10 Year Member
 
Joined: Mar 2007
Posts: 117
Likes: 1
From: Mexico Beach FL
Default

OK, I must have taken my stupid pills today. I finally realized that I could bolt a new pointer on with 2 of the cover bolts. I was thinking it was supposed to be tack welded on the cover. I think I may be been thinking of my Dad's Oldsmobile. Sorry to clog up the forum with a bad thread.
Reply
Old Jan 25, 2010 | 09:22 PM
  #3  
impact1968's Avatar
impact1968
Instructor
20 Year Member
All Eyes On Me
 
Joined: Oct 2004
Posts: 162
Likes: 2
From: Tampa, Florida
Default

I've always wondered how accurate that tab is? 1 degree off? 1/2 a degree off?

Anyone care to guess?
Reply
Old Jan 26, 2010 | 12:32 AM
  #4  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default

The new tab has to be matched to the OD of the damper, even then I wouldn't trust it.

i'd buy an adjustable tab and use the positive stop method to located absolute TDC.

Jake
Reply
Old Jan 26, 2010 | 02:52 PM
  #5  
coupeguy2001's Avatar
coupeguy2001
Le Mans Master
15 Year Member
 
Joined: Sep 2006
Posts: 6,050
Likes: 147
From: Phoenix AZ
2021 C4 of the Year - Modified Finalist
Default

your car is late enough to have the run of the mill tab from an auto parts store.
Just the early ones would be off.
On my 57, i went and bought a new harmonic balancer.........did the timing thing 4 or 5 times.
In the process of finding out what went wrong, i came across a blurb in Car Craft magazine that indicated Chevy relocated the timing tabs and timing marks on "newer" engines.
I removed the new balancer, compared to the old one for a look see, and sure enough, they moved the mark.
I used a chisel to mark the old timing mark, painted it with white-out, and that fixed the problem............Just a word to the wise.

Course now that I have a later engine in it, it's not a problem. But I bet there's a bunch of "old" harmonic balancers out there.......
Reply

Get notified of new replies

To Timing Tab Missing





All times are GMT -4. The time now is 10:03 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