My 1957 fuel injection beat me - CorvetteForum - Chevrolet Corvette Forum Discussion


C1 & C2 Corvettes
General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations
Sponsored by:
Sponsored by:

My 1957 fuel injection beat me

Reply
 
 
 
Thread Tools Search this Thread
Old 06-17-2017, 02:32 PM   #1
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default My 1957 fuel injection beat me

My 57 runs about ten seconds then shuts off . If I leave it alone for 10 or 15 minutes it will do it again it's getting spark and fuel tried everything that I know of which isn't much .. Does anyone know who works on them near Pittsburgh. I'm 1 hour east . I looked on line and see a place called corvette specialists . Thanks Zano
zano is offline   Reply With Quote
Old 06-17-2017, 03:04 PM   #2
wmf62
CF Senior Member
St. Jude Donor '07
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 15,890
Thanked 394 Times in 342 Posts
Default

Quote:
Originally Posted by zano View Post
My 57 runs about ten seconds then shuts off . If I leave it alone for 10 or 15 minutes it will do it again it's getting spark and fuel tried everything that I know of which isn't much .. Does anyone know who works on them near Pittsburgh. I'm 1 hour east . I looked on line and see a place called corvette specialists . Thanks Zano
john degregory fuel injection


I suggest you contact John DeGregory in Greensburg, Pennsylvania, extremely knowledgeable and thoroughly honest. John's phone number is (724) 832-3786.

Bill
wmf62 is offline   Reply With Quote
The Following 3 Users Say Thank You to wmf62 For This Useful Post:
1960fi (06-18-2017), Chuck Gongloff (06-18-2017), silver837 (06-17-2017)
Old 06-17-2017, 04:53 PM   #3
MikeM
CF Senior Member
 
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 19,736
Thanked 399 Times in 358 Posts
Default

Quote:
Originally Posted by wmf62 View Post
john degregory fuel injection


I suggest you contact John DeGregory in Greensburg, Pennsylvania, extremely knowledgeable and thoroughly honest. John's phone number is (724) 832-3786.

Bill
That's the man to go to in your area.
MikeM is offline   Reply With Quote
Old 06-17-2017, 05:01 PM   #4
zangx1
CF Senior Member
 
zangx1's Avatar
 
Member Since: Sep 2010
Location: wyoming pa
Posts: 205
Thanked 2 Times in 2 Posts
Default 57 fuelie

zJohn DeGregory. did. Two units for me very satisfied
zangx1 is offline   Reply With Quote
Old 06-17-2017, 05:10 PM   #5
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default

I talked to john super nice guy backed up over a year and only looks at injection doesn't look at it on the car he referred me to a guy down by Philly but I was hoping to find someone closer
zano is offline   Reply With Quote
Old 06-17-2017, 05:22 PM   #6
prestige6
CF Senior Member
 
prestige6's Avatar
 
Member Since: Sep 2006
Posts: 2,284
Thanked 27 Times in 15 Posts
Default

Quote:
Originally Posted by zano View Post
I talked to john super nice guy backed up over a year and only looks at injection doesn't look at it on the car he referred me to a guy down by Philly but I was hoping to find someone closer
If he suggested George Shaffner he did mine excellent.
prestige6 is offline   Reply With Quote
Old 06-17-2017, 05:37 PM   #7
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default

George Shaffner that's him if he's not to busy it's about 5 hrs away think it would be better than trying Corvette specialists ? There only little over an hour away
zano is offline   Reply With Quote
Old 06-17-2017, 05:47 PM   #8
wmf62
CF Senior Member
St. Jude Donor '07
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 15,890
Thanked 394 Times in 342 Posts
Default

Quote:
Originally Posted by zano View Post
George Shaffner that's him if he's not to busy it's about 5 hrs away think it would be better than trying Corvette specialists ? There only little over an hour away
ask John if he would recommend Corvette Specialists

Bill
wmf62 is offline   Reply With Quote
Old 06-17-2017, 05:51 PM   #9
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default

Good idea I will. Thanks Zano
zano is offline   Reply With Quote
Old 06-17-2017, 05:56 PM   #10
jerrybramlett
CF Senior Member
 
Member Since: Feb 1999
Location: Mobile AL
Posts: 4,785
Thanked 65 Times in 37 Posts
Default Wasn't Shaffner on Star Trek?

My guess is that John recommended George Schreffler in Harrisburg, PA, but I don't consider that near Philly.
jerrybramlett is online now   Reply With Quote
Old 06-17-2017, 06:08 PM   #11
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default

That was a couple weeks ago I talked to john maybe he did say Harrisburg memory isn't what it use to be. Anyway the number he gave me was 717-439-6407 would that happen to be the George from Harrisburg that's only 140 miles away.
zano is offline   Reply With Quote
Old 06-17-2017, 06:11 PM   #12
leif.anderson93
CF Senior Member
 
leif.anderson93's Avatar
 
Member Since: Feb 2014
Location: Richardson Texas
Posts: 1,561
Thanked 217 Times in 197 Posts
Default

Quote:
Originally Posted by zano View Post
That was a couple weeks ago I talked to john maybe he did say Harrisburg memory isn't what it use to be. Anyway the number he gave me was 717-439-6407 would that happen to be the George from Harrisburg that's only 140 miles away.
Why not just call the number and ask him where he's located??
leif.anderson93 is online now   Reply With Quote
Old 06-17-2017, 06:22 PM   #13
jerrybramlett
CF Senior Member
 
Member Since: Feb 1999
Location: Mobile AL
Posts: 4,785
Thanked 65 Times in 37 Posts
Default

Quote:
Originally Posted by zano View Post
That was a couple weeks ago I talked to john maybe he did say Harrisburg memory isn't what it use to be. Anyway the number he gave me was 717-439-6407 would that happen to be the George from Harrisburg that's only 140 miles away.
That's his cell phone number.
jerrybramlett is online now   Reply With Quote
Old 06-17-2017, 06:34 PM   #14
zano
CF Senior Member
Thread Starter
 
Member Since: Feb 2017
Location: Ebensburg Pennsylvania
Posts: 159
Thanks: 0
Thanked 6 Times in 6 Posts
Default

I think william was the guy from star trek George from Philly must be his brother . Lol . I'll call George from Harrisburg Monday . Thank you. Zano
zano is offline   Reply With Quote
Old 06-18-2017, 05:21 AM   #15
Vitaminmopar
CF Senior Member
 
Vitaminmopar's Avatar
 
Member Since: Jul 2014
Location: Colorado Springs CO
Posts: 132
Thanked 13 Times in 12 Posts
Default

Ten seconds sounds about how much fuel would be available in the fuel meter bowl when full. Have you checked fuel delivery up to the fuel meter after the engine dies. Are you running points or electronic ignition (Pertronix)?

You might be able to narrow the problem down to either fuel or spark by adding gas to the plenum immediately after the engine dies. Refer to the included photos for reference. Remember to not have a flame source (cigarettes) or spark (ignition on) when working with gas. Adding gas via the air-meter is doable but a bit challenging. Other than the air-meter there is a port where adding some fuel is the easiest. The plenum vacuum port by the throttle bell crank. Your distributor vacuum advance maybe attached to this port. I have never liked starting fluid (AKA Either) so I'm not recommending using it.

If you have a smooth plenum top injector where the fuel meter rubber vent tube is at the top of the fuel meter you could use that port. The early rib top injectors had this tube on the side of the fuel meter so in that case using this port would be difficult. Injectors with a smooth top had the vent connected via a rubber hose about 2 inches long attached to a metal nipple in the middle of the plenum and to the fuel meter via 3/16 curved metal elbow located on top of the fuel meter . You should be able to slip that hose off, then on. If the rubber hose is hard suggest you not try this port as the hose maybe brittle. The factory hose was fairly stiff.

If you have a syringe available, rapidly inject 5 CCs of gas at chosen port and reseal port connection. One teaspoon is about 5 CCs. If the engine tries to start I would say fuel delivery is the problem, if it does not try to start then ignition. Don't get carried away by adding more than 5 CCs at a time, you do not want to hydro-lock an engine cylinder.

If the engine tries to start you can then try adding 15-20 CCs of fuel to the fuel meter bowl (not the plenum). It has been a long time since I worked on an early rib top injector. I have the later model injectors that I maintain. Having stated that, on a rib top injector I think you can remove two screws attaching the trapezoid cover plate on top of the fuel meter to expose the bowl vent hole enough to add fuel. There will be a brass screen covering this hole but I think you should be able to get gas past it. All other injectors use the vent tube located on top of the fuel meter. If the engine briefly runs after adding fuel, then check your fuel delivery to the fuel meter. Fuel filter blockage (low probability at idle state), defective fuel pump, collapsing rubber fuel line at pump (not likely), pinched fuel line, blocked fuel strainer sock in tank, vacuum in tank (that would be weird)






Vitaminmopar is offline   Reply With Quote
Old 06-18-2017, 07:31 AM   #16
wmf62
CF Senior Member
St. Jude Donor '07
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 15,890
Thanked 394 Times in 342 Posts
Default

nice explanation...

the short version of the above... if there is fuel in the pump bowl AND the engine runs for 'x' time, then the fuel pump drive cable must be turning enough to squirt the injectors.

if so, then I don't see how injecting fuel directly into the plenum adds any information EXCEPT for an ignition failure after 'x' time. the fact that it will restart seems to belie that.

it seems 'something' is interrupting fuel flow

Bill
wmf62 is offline   Reply With Quote
Old 06-18-2017, 11:48 AM   #17
PAmotorman
CF Senior Member
 
PAmotorman's Avatar
 
Member Since: May 2007
Posts: 2,063
Thanks: 0
Thanked 80 Times in 72 Posts
Default

install a piece of see thru fuel line between the engine fuel pump and the FI pump and see if the line is still full when the engine shuts down. if it is the FI is the problem and if no fuel in the line it is the fuel delivery system. you could also install a "T" with a fuel pressure gauge in the line

Last edited by PAmotorman; 06-18-2017 at 11:49 AM.
PAmotorman is offline   Reply With Quote
Old 06-18-2017, 12:50 PM   #18
jim lockwood
CF Senior Member
 
jim lockwood's Avatar
 
Member Since: Feb 2007
Location: northern california
Posts: 6,096
Thanked 254 Times in 201 Posts
Default

Quote:
Originally Posted by wmf62 View Post

the short version of the above... if there is fuel in the pump bowl AND the engine runs for 'x' time, then the fuel pump drive cable must be turning enough to squirt the injectors.
Weelllll, not always.

'57 FI units have a starting mechanism which is independent of the normal fuel supply/regulation mechanism.

Engines with '57 FI units can start and run for a few seconds even if the cable is broken or the main internal mechanism is FUBAR.

Jim
jim lockwood is offline   Reply With Quote
Old 06-18-2017, 01:31 PM   #19
wmf62
CF Senior Member
St. Jude Donor '07
 
wmf62's Avatar
 
Member Since: Jun 2006
Location: Inverness FL
Posts: 15,890
Thanked 394 Times in 342 Posts
Default

Quote:
Originally Posted by jim lockwood View Post
Weelllll, not always.

'57 FI units have a starting mechanism which is independent of the normal fuel supply/regulation mechanism.

Engines with '57 FI units can start and run for a few seconds even if the cable is broken or the main internal mechanism is FUBAR.

Jim
thanks, I kinda sorta forgot... it used the engine fuel pump to 'prime' the system...

so, the drive cable could possibly not be 'driving'... or, if it is, the metering valve is not working...

thanks

Bill

Last edited by wmf62; 06-18-2017 at 01:32 PM.
wmf62 is offline   Reply With Quote
Old 06-18-2017, 01:54 PM   #20
MikeM
CF Senior Member
 
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 19,736
Thanked 399 Times in 358 Posts
Default

Quote:
Originally Posted by wmf62 View Post
thanks, I kinda sorta forgot... it used the engine fuel pump to 'prime' the system...

so, the drive cable could possibly not be 'driving'... or, if it is, the metering valve is not working...

thanks

Bill
He got me on the same thing a week or two ago.
MikeM is offline   Reply With Quote
Go Back   CorvetteForum - Chevrolet Corvette Forum Discussion >
Reload this Page
  • My 1957 fuel injection beat me
  •  
     
    Reply

    Related Topics
    Thread Thread Starter Forum Replies Last Post
    some one said my 57 is a real el car zano C1 & C2 Corvettes 50 09-13-2017 08:26 PM
    Looking for restomod zano C1 & C2 Corvettes for Sale/Wanted 43 06-27-2017 11:44 PM
    57 fuel injection no gas zano C1 & C2 Corvettes 61 05-23-2017 08:03 PM
    pulled valve cover of 283 283 hp 57 zano C1 & C2 Corvettes 1 03-31-2017 06:55 PM
    1957 corvette might be matching#s zano C1 & C2 Corvettes 69 02-24-2017 10:38 PM


    Thread Tools Search this Thread
    Search this Thread:

    Click for Advanced Search

    Posting Rules
    You may not post new threads
    You may not post replies
    You may not post attachments
    You may not edit your posts

    BB code is On
    Smilies are On
    [IMG] code is On
    HTML code is Off
    Trackbacks are Off
    Pingbacks are Off
    Refbacks are Off

    Forum Jump

    Sponsored Ads
    Vendor Directory

    All times are GMT -4. The time now is 11:31 PM.


    We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
     
    • Ask a Question
      Get answers from community experts
    Question Title:
    Description:
    Your question will be posted in: