Adjusted timing, ran fine, now won't run... :-(
Thread Starter
Instructor
Joined: Apr 2001
Posts: 140
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From: Las Vegas NV
Adjusted timing, ran fine, now won't run... :-(
Ok, so my '74 454 ran just fine after I rebuilt it for 100 miles or so, started easy, etc. etc. I was extatic. So, after I was comfortable that it ran without anything really bad happening, I decided to get the timing right (it was at ~6 deg), so I put the light on it (warm engine, vaccum advance disconnected/plugged), and adjusted to 12 degrees.
It ran beautifuly, could feel a power difference idle was smoother, I was happy :hurray:
So, I put it away for a few days, then I went back to start her up again, and she barley ran, black smoke and barley limped down the street and back. Checked timing, it was cold, and barley running, it was still 12deg, so I hadn't messed anything up when I tightened the hold down on the distributor.
Adjusted mixture leaner, no luck. Adjusted timing back to where I started (marked it before I started), no luck.
Now, it won't even fire at all. I am getting spark.
I've got MSD tach drive distributor, MSD Blaster 2 coil, and MSD 6al ignition box.
Did something break? What else should I check? Its flooded beyond beief now, I cranked it enough. Could it be possible that there is just so much fuel in the cylnders that would cause me a problem? SHould I pull the plugs and let it evaporate?
:confused: :confused:
Thanks!
David :banghead:
It ran beautifuly, could feel a power difference idle was smoother, I was happy :hurray:
So, I put it away for a few days, then I went back to start her up again, and she barley ran, black smoke and barley limped down the street and back. Checked timing, it was cold, and barley running, it was still 12deg, so I hadn't messed anything up when I tightened the hold down on the distributor.
Adjusted mixture leaner, no luck. Adjusted timing back to where I started (marked it before I started), no luck.
Now, it won't even fire at all. I am getting spark.
I've got MSD tach drive distributor, MSD Blaster 2 coil, and MSD 6al ignition box.
Did something break? What else should I check? Its flooded beyond beief now, I cranked it enough. Could it be possible that there is just so much fuel in the cylnders that would cause me a problem? SHould I pull the plugs and let it evaporate?
:confused: :confused:
Thanks!
David :banghead:
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Re: Adjusted timing, ran fine, now won't run... :-( (djlangford)
Forget the ignition, look at the carb. It is obviously flooding. You will probably have to remove and clean the plugs to get it to fire.
Thread Starter
Instructor
Joined: Apr 2001
Posts: 140
Likes: 0
From: Las Vegas NV
Re: Adjusted timing, ran fine, now won't run... :-( (djlangford)
Took Wombvette's advice, and put some new plugs in and we've got fire now!!!
What a great resource this place is!!! Not the first time you've saved me from dispair!!! :party:
David
What a great resource this place is!!! Not the first time you've saved me from dispair!!! :party:
David
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Re: Adjusted timing, ran fine, now won't run... :-( (djlangford)
If plugs fouled in only 100 miles with a new MSD box standby for a repeat. Sounds like a carb quirk that may be difficult to locate. With the smallish price for carburetor I don't know why more hobbyists don't have a reliable spare. Good rebuilds are under $200 on line and brand spanken new holleys for $300.
Just my two pennys but I'll always have a good spare on the shelf for comparison.
Oh yea. BTW Las Vegas is at least 2,000 higher than us sea level folks and requires a step leaner jetting and a power valve change. Sorry can't remember the PV number but Holley has a great technical website. :thumbs:
[Modified by cardo0, 4:36 AM 3/28/2003]
Just my two pennys but I'll always have a good spare on the shelf for comparison.
Oh yea. BTW Las Vegas is at least 2,000 higher than us sea level folks and requires a step leaner jetting and a power valve change. Sorry can't remember the PV number but Holley has a great technical website. :thumbs:
[Modified by cardo0, 4:36 AM 3/28/2003]
