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

New Engine is Missing!!!!! Help!!!!

Thread Tools
 
Search this Thread
 
Old Sep 6, 2001 | 09:52 PM
  #1  
FoolCrzy's Avatar
FoolCrzy
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Apr 2001
Posts: 2,474
Likes: 1
From: Drive it Like You Hate it Cincinnati OH
Default New Engine is Missing!!!!! Help!!!!

The new engine is definitely not hitting on all cylinders. :cuss I have checked ignition and all is well. I'm thinking an injector is not working properly, or possibly I did the valves wrong, and a valve is staying open or something... how can I check the injectors. I'd like to assume they're good. They're brand new Accell 24#. Could a lifter have pumped up with oil and caused excessive pre-load to keep a valve open??? any thoughts???

Thanks in advance!!!
Reply
Old Sep 7, 2001 | 03:45 AM
  #2  
ol,RJ's Avatar
ol,RJ
Burning Brakes
10 Year Member
 
Joined: Sep 2000
Posts: 1,199
Likes: 1
From: NewCastle IN. USA
Default Re: New Engine is Missing!!!!! Help!!!! (FoolCrzy)

first thing I'd do, pull the plugs and see what they look like.
if a injector isn't firing that plug should still look new.
you can also pull the connector off one injector at a time while its running, and listen for a difference (beats getting shocked by plug wires) the one with no or little difference is your problem cylinder.

if its more of a miss, its most likely the lifter adjustment. a dead cylinder (like with no spark or no fuel) is very noticeable, motor shakes big time and will hardly run.

don't rule out a bad sparkplug ether. I've seen a brand new plug be bad.
hope you find the prob.
RJ
Reply
Old Sep 7, 2001 | 05:01 AM
  #3  
FoolCrzy's Avatar
FoolCrzy
Thread Starter
Melting Slicks
15 Year Member
 
Joined: Apr 2001
Posts: 2,474
Likes: 1
From: Drive it Like You Hate it Cincinnati OH
Default Re: New Engine is Missing!!!!! Help!!!! (ol,RJ)

Thanks RJ...Good tips.
Reply
Old Sep 7, 2001 | 11:37 AM
  #4  
J Z06's Avatar
J Z06
Team Owner
20 Year Member
 
Joined: Apr 2000
Posts: 27,818
Likes: 8
From: CT
Default Re: New Engine is Missing!!!!! Help!!!! (FoolCrzy)

Check the Fuel Pressure. Also check it under load. Tape a Gauge to the windshield and see where and IF it is dropping off.
Reply
Old Sep 7, 2001 | 02:00 PM
  #5  
Zip Corvettes's Avatar
Zip Corvettes
Platinum Supporting Vendor
20 Year Member
Liked
Loved
Top Answer: 1
 
Joined: Sep 2001
Posts: 3,665
Likes: 341
Default Re: New Engine is Missing!!!!! Help!!!! (ol,RJ)

First lets see which cylinder is not firing. With a cold engine start it up and using a spray bottle gently spray water on each of the manifold/header pipes. The water should immediatly boil off, when you get one that does not, you found the cylinder that is not firing. Check to make sure the connector is all the way on the injector, as I have done this many times just to find a loose connector.
Justin
Reply
Old Sep 7, 2001 | 02:02 PM
  #6  
weekendwrench's Avatar
weekendwrench
Burning Brakes
 
Joined: Feb 2000
Posts: 958
Likes: 1
From: SF Bay area, CA USA
Default Re: New Engine is Missing!!!!! Help!!!! (FoolCrzy)

You can unlpug the siganl wire from heach injector while the car is adling and listen for a difference in idle speed. You can also check the resistance of each injector with an ohm meter. They all should be the same. I had this happen when I put my engine in and the problems I had was 2 plug wires crosses (I am a little embarassed to admit) and one plug was defective and would not fire. Check the firing order carefully. I think 3 aqnd 5 I had switched. The car ran pretty well considering.
Reply
Old Sep 7, 2001 | 07:38 PM
  #7  
JAKE's Avatar
JAKE
Le Mans Master
10 Year Member
 
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Default Re: New Engine is Missing!!!!! Help!!!! (jabbott)

Yep, spray water will work. For one that only fires intermittently, hook up your timing light to each wire and watch the flashes. At idle they should be steady and evenly spaced. One that skips is malfunctioning.

Either plug, wire, distributor cap or rotor ((or all of the above) if your engine is so equipped.

Jake
Reply

Get notified of new replies

To New Engine is Missing!!!!! Help!!!!





All times are GMT -4. The time now is 08:57 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