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

First start and break-in reality check needed

Thread Tools
 
Search this Thread
 
Old May 14, 2002 | 02:14 PM
  #1  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default First start and break-in reality check needed

Hey guys,

I'm getting *very* close to starting The Beast after the rebuild below, and worrying about getting it right. If anyone spots something I may have missed or got wrong, please let me know.

1. Engine pre-oiled.
2. Fuel system checked for leaks about a million times. (old, small injectors in, SuperFMU on most restrictive setting)
3. Timing - initially set up 'in the ballpark', with number 1 TDC on compression stroke(both valves closed)
4. Oil level correct (Dino for now).
5. Coolant level correct and all hoses tight.
6. All vacuum lines checked
7. All electrical connectors checked
8. Fire extinguisher to hand and no tools in engine bay!!

9. If she fires up, immediately set the timing by turning distributor by hand until she sounds right. Then set up with strobe.

10. Run for half an hour at varying, low throttle settings, double checking for oil, coolant or fuel leaks.

11. Change oil and filter - put more dino in.

12. Break in for 500 miles, then change oil and filter again - even more dino.

13. after 1500 miles, ditch the dino, put in the Mobil 1 and start to have some fun.

NB I'll be bypassing the blower drive pulley until 500 miles, then switch serpentine belts.

At which point should I change to the new injectors and set up the fuelling? During or after break-in? I know a lot of people say drive it like it's stolen, but I can't bring myself to treat a rebuilt engine that way, so please don't even suggest it! :blueangel:

TIA

Steve
Reply
Old May 14, 2002 | 05:10 PM
  #2  
85 Dave's Avatar
85 Dave
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 1999
Posts: 8,512
Likes: 3
From: Memphis, Tn
Default Re: First start and break-in reality check needed (steveelsbury)

Keep an eye on the coolant level. It will drop after you start it up. Watch your gauges, too.
Reply
Old May 14, 2002 | 06:45 PM
  #3  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default Re: First start and break-in reality check needed (85 Dave)

Wise words mate!

How much was the custom paint? That's next on my list!
Reply
Old May 14, 2002 | 08:04 PM
  #4  
85 Dave's Avatar
85 Dave
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 1999
Posts: 8,512
Likes: 3
From: Memphis, Tn
Default Re: First start and break-in reality check needed (steveelsbury)

About $400. Did it myself. :D
Reply
Old May 14, 2002 | 08:10 PM
  #5  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default Re: First start and break-in reality check needed (85 Dave)

:cool: Got any pics
Reply
Old May 14, 2002 | 10:43 PM
  #6  
olephart's Avatar
olephart
Burning Brakes
 
Joined: Dec 2000
Posts: 849
Likes: 0
From: Lafayette LA
Default Re: First start and break-in reality check needed (steveelsbury)

I'd change the oil and filter after the first 30 minute run, then as you posted.
Reply
Old May 14, 2002 | 11:38 PM
  #7  
1991Z07's Avatar
1991Z07
Safety Car
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 4,564
Likes: 110
From: Austin Texas
Default Re: First start and break-in reality check needed (steveelsbury)

I wouldn't EXACTLY drive it like you stole it, but my machinist says to drive it a LITTLE hard after you get everything buttoned up on it.

Make sure you disconnect the timing advance when you set the timing. It is a brownish looking connector in the wiring harness close to the brake master cylinder. Set the timing, shut the car off to re-connect it and then fire it back up.

You really don't need to have it running that long on start-up. Since you have a roller cam and not a flat-tappet type, you don't need to seat the lifters like you need to do on the older motors.

Take it for a drive out past the "Green Man" and if you can find a lonely open road (hard to do in this day in the Brentwood area) keep the car in low gear and wind it up to around 5k RPM and then let off the gas, letting the engine slow you back down. Do it multiple times, and do it during your "break-in" period. It will help set the rings faster.

We might have to get together at the Green Man for a pint of Abbot Ale in July. I'm going to be in England for a wedding on the 27th. I'd love to see how the project is going. Jane's uncle lives at the turn-off to Thorndon, so the Green Man is just a short walk (and a VERY long stagger) from there.

Good luck on the start-up.
Reply
Old May 15, 2002 | 09:55 AM
  #8  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default Re: First start and break-in reality check needed (olephart)

I'd change the oil and filter after the first 30 minute run, then as you posted.
Yep - got that at point 11 :yesnod:
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old May 15, 2002 | 10:05 AM
  #9  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default Re: First start and break-in reality check needed (Joe90)

Joe said: a bunch of useful stuff.

Steve says:

Good tip on disconnecting the timing advance - I would have forgotten about that for sure!

As for the rest - how astonishing to see a reply from someone who knows my area in the UK - yep, we'll try and meet up for sure - I'll email you off list.

Now, another general question for everyone: Should I retorque the heads during or after break-in? My engine builder didn't say.

Sadly, first fire up is further away then I though, as my US supplier has just shipped my new throttle body yesterday (finally!), but he sent it bloody snail mail because he 'didn't have time to fill out the UPS form' :mad Oh well - I've waited 8 months so I guess a few more weeks won't hurt.

Time to start detailing the engine cabling - what would you guys recommend? I'm currently torn between spiral wrap around the injector loom, or a silicon tube sliced open down one side.

Steve
Reply
Old May 15, 2002 | 10:31 AM
  #10  
85 Dave's Avatar
85 Dave
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 1999
Posts: 8,512
Likes: 3
From: Memphis, Tn
Default Re: First start and break-in reality check needed (steveelsbury)

Should I retorque the heads during or after break-in? My engine builder didn't say.
Re-torque after its broken in, and the engine is cool. Kinda tough to retorque during break-in.
Reply
Old May 15, 2002 | 10:38 AM
  #11  
steveelsbury's Avatar
steveelsbury
Thread Starter
Instructor
 
Joined: Mar 2002
Posts: 176
Likes: 0
From: Brentwood Essex
Default Re: First start and break-in reality check needed (85 Dave)

Re-torque after its broken in, and the engine is cool. Kinda tough to retorque during break-in
OK - guess I asked for that :) I meant during break-in period, not while the engine is running!

So retorque after 500 miles then?
Reply
Old May 15, 2002 | 12:37 PM
  #12  
85 Dave's Avatar
85 Dave
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 1999
Posts: 8,512
Likes: 3
From: Memphis, Tn
Default Re: First start and break-in reality check needed (steveelsbury)

So retorque after 500 miles then?
:yesnod:
Reply

Get notified of new replies

To First start and break-in reality check needed





All times are GMT -4. The time now is 12:14 AM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE