Re: Stuck on side of the road
[Re: sharpie]
#349895
06/17/09 12:10 PM
06/17/09 12:10 PM
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Joined: Dec 2007
Posts: 1,584 MD
p d'ro
pro stock
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pro stock
Joined: Dec 2007
Posts: 1,584
MD
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If you can see gas going into carb when you throttle, it probably isn't vapor lock....Although, if it starts after sitting for 30-45 min, I would check routing of your fuel line around the block/exhaust.. Do you have points or Pertronix....???
Last edited by p d'ro; 06/17/09 12:11 PM.
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Re: Stuck on side of the road
[Re: p d'ro]
#349896
06/17/09 12:24 PM
06/17/09 12:24 PM
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Joined: Sep 2007
Posts: 5,037 hi
sharpie
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Moparts Linguist
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Moparts Linguist
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Alright, I'm safely at work via my MINI, and now I can update a little better. I got AAA to tow, so to the people who will say something about me calling towing first, I did. There was definitely fuel dripping into the carb venturi, and the carb itself was cold, if you can believe it. So there was no vapor lock from the carb itself, either I will check ballast first I think. I have an extra one, but what's weird is that the entire ignition system (MP electronic) has maybe 4 hours of driving time on it. The other weird thing was that if I cranked for about ten seconds, you'd hear a rumble like it really wanted to start. I even got it to start once, but it was at really low RPM. I tried to hold it up by pressing the throttle lever on the carb, and it did something of interest - whenever I left it at idle, it ran (albeit rough), but whenever I pushed the throttle lever back, it would stop combustion. I just hope I didn't wipe a lobe on the cam
Last edited by sharpie; 06/17/09 12:25 PM.
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Re: Stuck on side of the road
[Re: sharpie]
#349897
06/17/09 12:30 PM
06/17/09 12:30 PM
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Joined: Jan 2003
Posts: 5,445 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,445
So Cal
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A couple of things to test.. 1. A qwikee test of the ballast resistor is just jump it for a very short time.. 2. Check the reluctor inside the distributor, sometime the gap is too wide. Works inconsistently, regap it and see what happens. Just my $0.025...
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Re: Stuck on side of the road
[Re: RodStRace]
#349899
06/17/09 01:23 PM
06/17/09 01:23 PM
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Joined: Sep 2007
Posts: 5,037 hi
sharpie
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Quote:
Check for spark before worrying about the individual components.
If you have spark and fuel, it sounds mechanical. How old are the timing chain/gears?
The part that scares me is that everything's new. Like, four hours of run-time new.
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Re: Stuck on side of the road
[Re: sharpie]
#349900
06/17/09 01:35 PM
06/17/09 01:35 PM
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Joined: Sep 2005
Posts: 12,481 Chino Valley
RodStRace
I Live Here
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I Live Here
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Posts: 12,481
Chino Valley
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Okay, that's better. As I said, check for a good spark first. The three things you need are air/fuel (you say the carb is not hot and there is fuel coming out), spark (there is good stuff on electronic ignitions in the tech section), and compression. Since the motor is fresh, we will assume at this point that the rings and timing are okay. The part that worries me is the slowing down before dying. That's usually not a sign of an electrical issue, although it can happen. Did the engine get hot, did the oil pressure drop? When you can check for spark, let us know.
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Re: Stuck on side of the road
[Re: RodStRace]
#349901
06/17/09 01:43 PM
06/17/09 01:43 PM
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Joined: Sep 2007
Posts: 5,037 hi
sharpie
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Oil pressure seemed to drop , but I don't know whether that was a consequence of the oil pump not spinning fast enough or whether it was a factor in why it was dying. When I hold the starter for ten seconds, it does have a bit of pressure on the gauge (10lbs maybe?) but it doesn't build to like 40-50lbs. But that doesn't mean much to me - when we started the motor for the first time, it didn't show oil pressure building, but when it's on, it's had 75lbs cold and 40-50lbs hot like clockwork. The engine didn't get that warm overall, and never overheated before this happened. I am going to check for spark and change the oil tonight.
Last edited by sharpie; 06/17/09 01:44 PM.
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Re: Stuck on side of the road
[Re: sharpie]
#349904
06/17/09 03:53 PM
06/17/09 03:53 PM
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Joined: Nov 2004
Posts: 9,312 SoCal
68HemiB
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master
Joined: Nov 2004
Posts: 9,312
SoCal
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Hey Brian - I just saw this thread. As sort of already stated before:
a. Immediate diagnosis is checking for fuel and spark. If not present, or in insufficient quantity/quality, chase those things.
b. IFF (obscure nerdy acronym, not a typo) all the stuff in a. pans out, THEN worry about the scary stuff (timing chain, cam lobes, etc) and dig deeper with a compression test.
Down to just a blue car now.
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Re: Stuck on side of the road
[Re: Hoof Hearted]
#349907
06/17/09 04:55 PM
06/17/09 04:55 PM
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Joined: Sep 2007
Posts: 5,037 hi
sharpie
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Quote:
I don't know about the rest of you guys, but I'm mostly impressed that though Sharpie's 20th century technology ridin relic broke down, this guy's using up to the minute 21st century technology (Laptop?), and is posting to us members From The Side Of The Road!
Kudos!
(cough)iphone(cough)
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Re: Stuck on side of the road
[Re: Hoof Hearted]
#349908
06/17/09 04:55 PM
06/17/09 04:55 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
I Live Here
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I Live Here
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Posts: 15,487
Florida
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but what else would he have to do waitin on the tow truck? bet he used a cell phone to call AAA or did you send them an e mail? I am with you there sharpie,butterflys all in the stomich over what all could be bad wrong.. thats a very short run time for a prob to show up good luck and keep us posted scratchin
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