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5/30/16 7:47pm - Original Message: '78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
New to the Corvette world, so please take it easy on me.

Purchased a 78 Stingray, ran like a champ on the way home.

However, when it sits for a few hours is has trouble starting. Prev. owner stated if it ever gives me any issues starting, to pull out the manual choke on right of steering column.

Seemed to work here and there, but was worse today. Not knowing what to do, I assumed it was the battery and put in a new one. Still gave me an issue ( 4 attempts before it started ).

Guy at shop put a tested on it showing the battery and starter passed diag test.

Not sure what is going on, but still gives me issues starting after it has been sitting for a few hours.

Not sure if I should now have plugs, wires, fuel filter etc. changed now. Just don't want to keep buying this and that if it is not going to make a difference.

Hoping others have seen this and know what is going on with it.

Thank you in advance.





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5/30/16 8:11pm - Reply: 'Re: 78 Starting issues'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 398
By trouble starting are you saying it doesn't turn over or it does but doesn't start?  Need more info.

If you have to use a manual choke, either it doesn't have the original Q-jet or the Q-jet is misadjusted  or needs an overhaul.




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1973 L-82 4 spd

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5/30/16 8:21pm - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
won't turn over.

Sounds the same as if it were the battery, but if you make a few attempts it will sputter then fire up. 

If you let the gas go it will stall. I have to keep on the gas pedal a bit for a few mins for it to then stay on.

Acts like something could be clogged, or sparkplugs.
( just a guess on my end of course as I don't have the experience with this car at this point. )

Has other minor issues as well:

Speedometer not working

passenger light wont go down on it's own I have to do it manually
dome light
cig lighter

Those issues I think I can research and less important than my starting issue.



|UPDATED|5/30/2016 6:21:31 PM (AZT)|/UPDATED|
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5/30/16 10:02pm - Reply: 'Re: 78 Starting issues'
F4Gary Gold Member
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Grapevine, TX - USA

Vette(s):
1972 LT-1 convertible with factory air.

Joined: 8/26/2006
Posts: 870
When my 78 was hot it would have a starter solenoid problem.  Once cooled a little bit it would turn over.

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5/30/16 11:35pm - Reply: 'Re: 78 Starting issues'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 398
  You will need to check all of the battery connections to the starter and the grounds.

____________________________________

1973 L-82 4 spd

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5/31/16 7:01am - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30

RE: battery connections to the starter and the grounds.

Would this be the case after they placed a tester on the battery showing the battery and starter passed? .


When it finally dose start after 4-5 attempts, I need to keep my foot on the gas for a few mins. or it will stall out. Once it gets going, it is USUALLY good for the day.

Only acts up when it has been off for a few overs like overnight.


|UPDATED|5/31/2016 5:01:58 AM (AZT)|/UPDATED|
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5/31/16 9:05am - Reply: 'Re: 78 Starting issues'
cingraham
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Brookline, NH - USA

Vette(s):
1976 corvette L82 red interior with white seats and door panels with ceramic headers and flow master exhaust and a Crane Cam

Joined: 5/2/2014
Posts: 46
before you try anything else for a cold start try putting the gas pedal to floor and then releasing and maybe a 2nd time then try cranking it over !! sounds like a choke problem with the carb but if that doesn't work it might be time to rebuild the carb or make sure choke is adjusted properly

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There's nothing better in life then a Vette Smile
 
 
 
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5/31/16 9:58am - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
Turns over just won't fire up. AAA coming over to pick her up and take to Sears auto Hope then know enough to figure it out. When I give it gas via pulling the fuel ( pumping it in ) It attempts to start then right back to just the turning over noise With no results.
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5/31/16 11:32am - Reply: 'Re: 78 Starting issues'
bepah1
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Brentwood, CA - USA

Vette(s):
1979 Corvette project car

Joined: 4/15/2016
Posts: 21
Sure sounds like a choke/carburetor issue to me.....I am not sure that a Sears tech would have the necessary chops to diagnose it. Where are you located?

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5/31/16 11:35am - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
Maine
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5/31/16 11:47am - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
If I were to spray starting fluid in carb if it was a carb issue would it start so I can start ruling some stuff out such as plugs? It is at Sears auto now but to be honest I don't have much faith in Them when it comes to this car.
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5/31/16 12:35pm - Reply: 'Re: 78 Starting issues'
cingraham
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Brookline, NH - USA

Vette(s):
1976 corvette L82 red interior with white seats and door panels with ceramic headers and flow master exhaust and a Crane Cam

Joined: 5/2/2014
Posts: 46
sounds like the carb for sure I wouldn't let sears touch it. i would search for someone in your area that knows about carbs !! You can try putting the pedal to floor and leave it there while you crank it (this is usually done when carb is flooded but should work in getting it started it might spudder for a little bit but only crank it for a few seconds. But my guess is defintely carb just sounds like it from what you are saying since once you get it going it's usually good for the day.

also could be that manual choke your talking about which again is part of the carb.

Did the previous owner tell you exactly how to use the manual choke might be worth a phone call to him and ask him how he use to get it started while cold. 


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5/31/16 1:00pm - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
On the advise of a friend, they already have it Going to replace the plugs distributor and something else? At $528.00 If that dose not do it I will need to find a Vette guy. Seems to have an electronic choke that last owner over rid And put in a manual one for whatever reason? I will know if they were at all successful in a few hours But I feel today's work will be a waiste of time.
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5/31/16 1:21pm - Reply: 'Re: 78 Starting issues'
73shark
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 398
I suspect you might have just thrown $528 away. Here's what I think is your problem.  Yousay it does not want to start after sitting for several days. What could be happening is the fuel in the float bowl is slowly leaking out and when you go to restart it after several days, the fuel pump needs to refill the bowl. You can check this by removing the air cleaner and pumping the accelerator while looking down the throat of the carburetor. If you do not see it spraying gas, then you know that it's has no fuel in the fuel bowl.  Personally I would get the car back from Sears before they do any of the above-mentioned work that you mentioned.

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1973 L-82 4 spd

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5/31/16 1:25pm - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
I agree that I most likely just threw over $500. Away, but at least now I know those parts will now Be new at least, So, to your point, if I took starting fluid and sprayed it Down the carb, am I correct to say it should fire up then Until I can find a Vette guy to fix it correctly?
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5/31/16 2:52pm - Reply: 'Re: 78 Starting issues'
ranger3 Lifetime Member
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North Charleston, SC - USA

Vette(s):
1975 L48 AT AC T-top

Joined: 3/20/2004
Posts: 4176
I agree with 73Shark. Definitely sounds like the float bowl is leaking/emptying and the fuel pump is filling the bowl before any fuel is being introduced to the combustion chamber. It also could be choke issue but certainly sounds like the engine is staving for fuel on initial cranking.

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5/31/16 4:16pm - Reply: 'Re: 78 Starting issues'
73shark
Standard Member
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Overland Park, KS - USA

Vette(s):
1973 Orange Metallic Coupe (orig owner), L82, 4 spd (WR), PS, (A/C & PW (I installed from wrecked 73)), leather, AM/FM Stereo, ran with '65 FI unit earlier & will again some day.

Joined: 7/9/2003
Posts: 398
buxton161 said: I agree that I most likely just threw over $500. Away, but at least now I know those parts will now Be new at least, So, to your point, if I took starting fluid and sprayed it Down the carb, am I correct to say it should fire up then Until I can find a Vette guy to fix it correctly?
 I suppose you could do that but ether is dangerous if the engine backfires and it is very, very flammable.  As you can imagine, Corvettes do not tolerate engine fires very well.

 If your carburetor has an idle vent, it would be easier and safer to refill the bowl with gasoline through that vent.





|UPDATED|5/31/2016 2:16:47 PM (AZT)|/UPDATED|


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1973 L-82 4 spd

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5/31/16 6:26pm - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
Back from sears,

New plugs, wires distributor and its running, however still hesitates a bit before starting.

The true test will be tomorrow morning after it has been sitting all night.

I do have to find a good vette guy to look at the carb and possibly rebuild it.

Tomorrow will be the true test to see if they fixed something, or just moved something around a bit getting gas into the carb.
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5/31/16 7:43pm - Reply: 'Re: 78 Starting issues'
buxton161
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Scarborough, MA - USA

Vette(s):
78 Corvette stingray

Joined: 5/30/2016
Posts: 30
Yep, Just gave me a small issue starting then stalled While in reverse. Had to keep my foot on the gas for a Few to prevent her from stalling. Dam it. Don't know where I am going to find a reliable Vette guy Here in Maine
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5/31/16 8:12pm - Reply: 'Re: 78 Starting issues'
cinor Lifetime Member
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, - Canada

Vette(s):
1975 L48 Stingray 1992 LT1

Joined: 12/24/2013
Posts: 285
there is all the guys right here on this site to walk you through it start with what carb you have then go to u tube and watch a video of it and you will have much better understanding of how things work then all the advice here will make sense to you. Great bunch here



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