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

Why won't it start????

Thread Tools
 
Search this Thread
 
Old Jul 29, 2023 | 08:55 PM
  #1  
vetteguy75's Avatar
vetteguy75
Thread Starter
Melting Slicks
Supporting Member
20 Year Member
All Eyes On Me
Liked
Loved
 
Joined: Jan 2003
Posts: 2,713
Likes: 31
From: Shreveport LA
LA Events Coordinator
Default Why won't it start????

We replaced a failed lifter in my 383 stroker this morning. As you know to replace all the lifters, everything had to be removed....the TBI, intake, distributor, valve covers, rocker arms and the push rods. Replaced the lifters & reassembled everything back and now it won't start. It's getting gas, spark and air. We figure it's the timing of the distributor.....but we aligned it correctly with TDC and still NOTHING. It just cranks, and cranks and cranks..... Prior to this, she ran really FiNE!

Reply
Old Jul 29, 2023 | 09:06 PM
  #2  
calwldlife's Avatar
calwldlife
Team Owner
15 Year Member
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
Default

180 out is usual trouble?
but it should pop and back fire.
Reply
Old Jul 29, 2023 | 09:06 PM
  #3  
calwldlife's Avatar
calwldlife
Team Owner
15 Year Member
Loved
Community Favorite
Top Answer: 1
 
Joined: Jan 2007
Posts: 53,648
Likes: 878
From: Southern Cal Ca
St. Jude Donor '22
Default

valves adjusted too tight?
Reply
Old Jul 30, 2023 | 07:34 AM
  #4  
4-vettes's Avatar
4-vettes
Race Director
15 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Nov 2006
Posts: 13,148
Likes: 7,761
From: Sunshine Coast, Queensland, Australia
2025 C3 of the Year Finalist - Modified
2024 C3 of the Year Finalist- Modified
2022 C3 of the Year Finalist - Modified
Cruise-In VIII Veteran
Default

Agreed, distributor out 180, bang, pop , bang! Head slap, pull distributor, turn 180, running.
Valves incorrectly adjusted, no bang or pop. Just won't run.
Have spark? Spark at the correct time? Have fuel? Getting into the cylinders ? Have compression?
Should run​.
3 things to make it run. Spark, compression and fuel.
One thing is off.
Reply
Old Jul 30, 2023 | 08:58 AM
  #5  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,108
Likes: 9,236
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

looks like and EFI under there. verify all the power inputs to it. YOu can see fuel going over the butterflies while you crank? Pull a plug, maybe its just dumping in fuel and you are fouled
Reply
Old Jul 30, 2023 | 09:02 AM
  #6  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,108
Likes: 9,236
From: Im not allowed to tell you
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

on the timng for the dizzy, go back though the directions for the EFI, if you are running it so the EFI is controilling timing it has to be synched to the dizzy and locked at a specific timing event
Reply
Old Jul 30, 2023 | 10:00 AM
  #7  
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

Vetteguy75,

First, put the battery on a charger.
Then go to Harbor Freight. Your best friend right now is a Sparkplug Test Light, about $6.
Install the tool at any sparkplug terminal on the distributor cap.
Without spark verification, you are going at this issue blindly.
Reply
Old Jul 30, 2023 | 12:34 PM
  #8  
Purple92's Avatar
Purple92
Melting Slicks
20 Year Member
Liked
Loved
Top Answer: 3
 
Joined: Jul 2005
Posts: 2,649
Likes: 863
Default

First off - walk away from it for an hour or two...

Now - when you comer back to it - you took everything apart to pull the intake - a lot of connectors were removed, and hopefully reassembled. If I were you - I'd go through and check every single one of those connectors.

If that doesn't resolve the problem - pull the driver side valve cover and put the engine at TDC for number one cylinder. If your half a cam rotation off - both valves for Cyl 1 will be a bit open when the piston is at TDC, So once you have verified your at the right position (piston at TDC, and both valves closed) - verify the distributor rotor is pointing right at the number one post of the Distributor cap.

Verify that you have spark at the plug (do a couple of cylinders to be sure - and verify that some fuel is being shot into the engine.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

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

 Joe Kucinski
story-1

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

 Verdad Gallardo
story-2

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

 Joe Kucinski
story-3

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

 Verdad Gallardo
story-4

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-5

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

 Michael S. Palmer
story-6

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

 Joe Kucinski
story-7

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

 Michael S. Palmer
story-8

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
story-9

10 Most Common Corvette Problems of the Last 20 Years!

 Joe Kucinski
Old Aug 1, 2023 | 11:10 AM
  #9  
Jebbysan's Avatar
Jebbysan
Dr. Detroit
Supporting Member
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2012
Posts: 10,093
Likes: 4,019
From: New Braunfels Texas
Default

Take the filter off and stare down the throat when someone cranks it for you.......it should be pulsing fuel.....if not, your distributor phasing is probably off since you say it has fuel and spark.......most all EFI systems want some kind of lead on the phase from 15 to 50 degrees......

Jebby
Reply
Old Aug 1, 2023 | 10:58 PM
  #10  
Prysmian46's Avatar
Prysmian46
Instructor
All Eyes On Me
Liked
Loved
 
Joined: Nov 2020
Posts: 126
Likes: 37
From: Brentwood, Tennessee
Default no start

[QUOTE=Jebbysan;1606896205]Take the filter off and stare down the throat when someone cranks it for you.......it should be pulsing fuel.....if not, your distributor phasing is probably off since you say it has fuel and spark.......most all EFI systems want some kind of lead on the phase from 15 to 50 degrees......

Jebby[/QUOTE
If you have the HEI system check the module in the distributor. If that fails you would never be able to start the car. It is like a light bulb, when it burns out it is out for good.
Reply

Get notified of new replies

To Why won't it start????





All times are GMT -4. The time now is 03:50 AM.

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