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

g-JET ?(ACCEL PUMP)

Thread Tools
 
Search this Thread
 
Old Feb 20, 2004 | 06:04 AM
  #1  
JBR's Avatar
JBR
Thread Starter
Racer
 
Joined: Oct 2003
Posts: 376
Likes: 0
From: NE PA PA
Default g-JET ?(ACCEL PUMP)

I read somewhere that with the car off and you depress the accel pump by hand you should have a nice smooth flow of fuel. Lets say the full travel of the pump ( piston) is 3/4", what I have is as follows. The first 1/3 of travel I have a nice shot of fuel. But the remaining 2/3 of travel no fuel is going in. Is this normal? :cheers:
Reply
Old Feb 20, 2004 | 09:36 AM
  #2  
Surfer69's Avatar
Surfer69
Drifting
20 Year Member
 
Joined: Apr 2002
Posts: 1,720
Likes: 19
From: Manhattan Beach Ca
Default Re: g-JET ?(ACCEL PUMP) (JBR)

It sounds like it should be spraying the whole distance. Does the engine cut-out when trying the pump at idle?
Reply
Old Feb 20, 2004 | 09:40 AM
  #3  
Stewart's74's Avatar
Stewart's74
Safety Car
20 Year Member
 
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Default Re: g-JET ?(ACCEL PUMP) (JBR)

When my accel pump failed, fuel would only dribble out. Sounds like yours may be partially swollen in the bore.
Reply
Old Feb 20, 2004 | 10:03 AM
  #4  
JBR's Avatar
JBR
Thread Starter
Racer
 
Joined: Oct 2003
Posts: 376
Likes: 0
From: NE PA PA
Default Re: g-JET ?(ACCEL PUMP) (Surfer69)

The engine does not realy cut out but it has a very bad boog or stumble when you floor it from stop.
Reply
Old Feb 20, 2004 | 10:05 AM
  #5  
RATT7's Avatar
RATT7
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Nov 2001
Posts: 684
Likes: 0
From: Winnipeg Manitoba
Default Re: g-JET ?(ACCEL PUMP) (Stewart's74)

I had the same problem, Lars was able to steer me in the correct direction - I was able to press the gas pedal down about a 1/4 of the way, from that point it became very stiff of hard. I removed the top part of the carb off and checked the accel pump and found that the rubber cup has actual expanded, the accel pump did not move up and down with any ease in the bore - in fact i needed a pair of plyers to remove the damn thing - It appears that the rubber cup expanded for what ever reason and did not move properly within the bore, thus it was binding - I replaced the accell pump with an Echlin replacement part and the problem was resolved - I noticed that once the new accel pump was installed it moved " smoothly " in the bore with little effort. Let us know how it goes :)
Reply
Old Feb 20, 2004 | 10:05 AM
  #6  
Stewart's74's Avatar
Stewart's74
Safety Car
20 Year Member
 
Joined: Aug 2000
Posts: 3,943
Likes: 44
From: Florham Park NJ Port Credit Ontario
Default Re: g-JET ?(ACCEL PUMP) (JBR)

The engine does not realy cut out but it has a very bad boog or stumble when you floor it from stop.
Its the pump. Same symptoms as mine. This is a dangerous problem. A stumble like that can get you t-boned in an intersection.
Reply

Get notified of new replies

To g-JET ?(ACCEL PUMP)





All times are GMT -4. The time now is 11:27 AM.

story-0
2027 Chevrolet Silverado 1500 First Look: Everything You NEED to Know!

Slideshow: Is the 2027 Chevrolet Silverado 1500 the best Silverado yet?

By Michael S. Palmer | 2026-06-16 08:01:12


VIEW MORE
story-1
5 Best & 5 Worst Corvette Daily Drivers

Slideshow: 5 best and 5 worst Corvette daily drivers

By Joe Kucinski | 2026-06-15 10:32:13


VIEW MORE
story-2
The Headlights of Every Corvette Generation Explained

Slideshow: The headlights of every Corvette generation explained

By Joe Kucinski | 2026-06-15 10:17:14


VIEW MORE
story-3
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-4
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

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


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