Engine died last night
Thread Starter
Racer
Joined: Nov 2009
Posts: 489
Likes: 1
From: Suffolk Virginia
Engine died last night
I went for a drive last night and my Vette shut off on me 200 yards short of my driveway. I was able to coast to the driveway and into the garage. When I went to look at it today I expected to find there was no spark and check the coil. To my surprise I was getting a spark, so now I'm not sure where to look next. The engine just shut off suddenly, it turns over easily and there was a strong gasoline smell (Worse than usual).
Any ideas where to start?
Thanks!
- Jay
Any ideas where to start?
Thanks!
- Jay
Drifting
Joined: Dec 2004
Posts: 1,714
Likes: 42
From: Austin Texas
If you have some starting fluid, I would use that and see if it kicks off. That would confirm that your spark is good. Then see if you are getting fuel to the carb. If yes, the carb is suspect. Perhaps filter at qjet inlet?
Thread Starter
Racer
Joined: Nov 2009
Posts: 489
Likes: 1
From: Suffolk Virginia
Thank you so much for all the input guys...turns out I was out of gas.
I knew it was low, but I KNOW my gas guage has been lower than it was last night. Since I started playing around with the ignition timing my fuel economy has dropped well below 10mpg
Sorry I jumped the gun and made this post before checking the most basic stuff.
Oh well, another happy ending
I knew it was low, but I KNOW my gas guage has been lower than it was last night. Since I started playing around with the ignition timing my fuel economy has dropped well below 10mpg
Sorry I jumped the gun and made this post before checking the most basic stuff.Oh well, another happy ending
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Race Director
Joined: Jul 2001
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Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
Thank you so much for all the input guys...turns out I was out of gas.
I knew it was low, but I KNOW my gas guage has been lower than it was last night. Since I started playing around with the ignition timing my fuel economy has dropped well below 10mpg Sorry I jumped the gun and made this post before checking the most basic stuff.
Oh well, another happy ending
I knew it was low, but I KNOW my gas guage has been lower than it was last night. Since I started playing around with the ignition timing my fuel economy has dropped well below 10mpg
Sorry I jumped the gun and made this post before checking the most basic stuff.Oh well, another happy ending
Seriously, tho, you are playing with the timing and getting worse gas mileage? What are you doing, retarding the timing? Typically, advancing timing will improve gas mileage.
Scott
Thread Starter
Racer
Joined: Nov 2009
Posts: 489
Likes: 1
From: Suffolk Virginia
I have'nt bought a timing light with a dial yet, the one I use is probably older than the car. Its at 11 before now, up from 6 before (stock?).
I adjusted the carb with a vaccuum guage, opened both screws 1 1/2 turns, slowly increased each intil the vacuum stopped rising. It runs great, but mpg is still down.
I adjusted the carb with a vaccuum guage, opened both screws 1 1/2 turns, slowly increased each intil the vacuum stopped rising. It runs great, but mpg is still down.
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
I have'nt bought a timing light with a dial yet, the one I use is probably older than the car. Its at 11 before now, up from 6 before (stock?).
I adjusted the carb with a vaccuum guage, opened both screws 1 1/2 turns, slowly increased each intil the vacuum stopped rising. It runs great, but mpg is still down.
I adjusted the carb with a vaccuum guage, opened both screws 1 1/2 turns, slowly increased each intil the vacuum stopped rising. It runs great, but mpg is still down.
I'm assuming it's a Q-jet? Is it the original carb? How many turns out did you get to where it is now? Is your vacuum advance functional? Are you disconnecting the vacuum advance when you measure the timing? Is the advance curve quickened up so it comes in at 2500-3000 rpm?
11* shouldn't even be close to where you would have issues, my 1980 L48 has 16* at idle with no vacuum advance, 32* with it connected, and it runs awesome. I get 15-17 mpg with a Holley squarebore carb, and that's about 50/50 highway and city driving. (I will admit that that's with me taking it nice and easy, but still getting on it at least once every time I drive it) No overdrive, either. (yet.....)
Scott
Thread Starter
Racer
Joined: Nov 2009
Posts: 489
Likes: 1
From: Suffolk Virginia
stock q-jet, maybe 2 1/2 - 3 turns total each screw. I think 11 is about the last mark so I thought I should stop there. You're at 16?
I don't know how to get to 32 total without a dial back light.
I don't know how to get to 32 total without a dial back light.
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
http://www.summitracing.com/parts/SUM-161588/
Scott
