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

New 383 runs !!!

Thread Tools
 
Search this Thread
 
Old Jan 11, 2009 | 09:42 PM
  #1  
leskinner's Avatar
leskinner
Thread Starter
Instructor
20 Year Member
 
Joined: Jan 2004
Posts: 242
Likes: 4
From: deland fl
Default New 383 runs !!!

Hi Guys-
Cranked up the newly rebuilt 383 this weekend, music to my ears !
However, now with this huge milestone behind me, several issues have reared their ugly heads. Couldn't recurve the distributer because the tach doesn't work, probably burned board. Couldn't run very long because the oil pressure and temp gauge don't work, keeps blowing the 10 amp "gauges" fuse. In fact, none of the gauges work. Have a vacumn leak somewhere, probably headlights (very slow up and down), all rebuilt with new vac lines. Leak in newly recored radiator, haven't found that yet. I was going to paint next but I think at this point I'm going to remove the dash and find the source (#18 pink wire)of the short that keeps blowing the gauges fuse and replace the tach board. I wanted to do the interior last but......
I'll search the archives for help with all this but any guidance from ya'll would be very appreciated. I'm gittin' waaaay to old for this foolishness.
Thanks !
Larry
Reply
Old Jan 11, 2009 | 10:25 PM
  #2  
vettesbydesign's Avatar
vettesbydesign
Safety Car
 
Joined: Aug 2006
Posts: 4,102
Likes: 1
From: Forsyth Illinois
Default

I'm not a electrical guy,but wanted to say congrats on the fire up.
I just got my engine back in the other day w/Brodix heads,and new mildly solid lifter cam,and surrounding hardware,and it is a BLAST!!!!Now I have to pull the intake,and swap the old one back on.
Contact forum member DWENCH.He is a magician one fixing these cars,and knows his stuff,and always there to offer help.
Reply
Old Jan 12, 2009 | 10:00 PM
  #3  
odiethe1st's Avatar
odiethe1st
8th Gear
 
Joined: Dec 2008
Posts: 8
Likes: 0
Default Vacuum Problems

I'm sure there's waaay more qualified opinions on this forum, but I found both my headlight regulators leaking...causing extremely slow headlight operation, if at all. The engine vacuum (taken at manifold) was still good, but taken at the front tank it was quite low. Another poster had suggested soaking o-rings of regulator in silicone lube as a last ditch effort to save some $$$...haven't re-tried them yet.

Blowing a 10A fuse in gauges seems like something big grounding out. Have you double checked all wiring (input & lighting) to make sure it still makes sense? Way to go bringing it back to life...it's a big milestone! I'd also wait to get it painted until you rid it of all the gremlins. A dropped wrench or garage rash while tinkering would be devasting to a $$$$$$ paint job. Good luck.
Reply
Old Jan 12, 2009 | 11:13 PM
  #4  
TimAT's Avatar
TimAT
Le Mans Master
15 Year Member
Liked
Loved
 
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
Default

Did the gauges all work before the engine swap? Maybe a pinched wire someplace- it's happened before.
Reply
Old Jan 13, 2009 | 01:17 PM
  #5  
leskinner's Avatar
leskinner
Thread Starter
Instructor
20 Year Member
 
Joined: Jan 2004
Posts: 242
Likes: 4
From: deland fl
Default

Thanks for the responses guys-
I will try the silicone in the headlight valve trick and I have no idea if the gauges previously worked or not. When I bought this thing it had been sitting in a "pile" for 15 years. The PO and I got it running well enough for him to drive onto my trailer, I drove it off into my shop when I got it home but didn't bother to check gauges. I removed the body and did a total chassis restoration. Now that the body is back on and motor running I look under the dash and it looks like a rats nest, literally. I believe my only recourse is to remove the dash and restore whatever is there, and evict the rats in the process. I think the PO was a real Bubba so there's no telling what I'll find.
I did copy from Wilcox a detailed step by step instruction on dash removal (Thanks Wilcox !!).
Heading out to the shop now, I'm goin' in !
Thanks
Larry
Reply
Old Jan 13, 2009 | 02:26 PM
  #6  
63mako's Avatar
63mako
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
Default

A new underdash wiring harness from Lectric Limited is not a bad option. Mine was fairly easy to install and the wire in the new harness is much superior to the stock wiring. Not a big investment to keep from burning your car up, especially on a fresh restoration.
Reply

Get notified of new replies

To New 383 runs !!!





All times are GMT -4. The time now is 02:23 PM.

story-0
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-1
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-2
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-3
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
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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