still start problem!! - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

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post #1 of 29 (permalink) Old Jan 7th, 04, 08:16 AM Thread Starter
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built new engine (see sig for specs), run good , shut it off, nextday, NOTHING!

thought it would be a miss-adjust holley carb, so i bought a new edelbrock, STILL NOTHING!

i took out a sparkplug and noticed it was dry, it sparks , the fuel delivery is good because when i hit the gas it squirts fuel out of those 2 holes in the carb(forgot the name).

Starterfluid doesnt help either!!!
What should i check for?

Z28 1984
'77 355ci/COMP cam 218/224 .464/.470 114 LSA
rollerrockers1.5/9.72 forged pistons
ported '66 461 heads 1.94,1.5/Flowtech shorty headers
edelbrock 600/performer rpm intake
th350/shiftkit/hughes2500stall
4th gen 3.23 10 bolt POSI.
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post #2 of 29 (permalink) Old Jan 7th, 04, 08:35 AM
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Squirter. Spark occurring at the right time?

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post #3 of 29 (permalink) Old Jan 7th, 04, 12:39 PM
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Is the choke properly adjusted? Those carbed engines are tempermental. Most of them require a quick stab of the throttle before starting. This gives the engine a shot of fuel and sets the choke. Pumping it too much or not at all can cause all sorts of wierd problems. Do you smell gas when cranking like it is flooded? To "un-flood" a motor, you'll have to crank it with the pedal to the floor. This lets the maximum amount of air into the motor to burn up the excess fuel.

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68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #4 of 29 (permalink) Old Jan 7th, 04, 07:02 PM Thread Starter
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all tried, nothing [img]graemlins/sad.gif[/img]

Z28 1984
'77 355ci/COMP cam 218/224 .464/.470 114 LSA
rollerrockers1.5/9.72 forged pistons
ported '66 461 heads 1.94,1.5/Flowtech shorty headers
edelbrock 600/performer rpm intake
th350/shiftkit/hughes2500stall
4th gen 3.23 10 bolt POSI.
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post #5 of 29 (permalink) Old Jan 8th, 04, 12:54 AM
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Place a vacuum gauge at full-time manifold vacuum. Keep throttle closed, crank engine to start. Vacuum reading should be 1-2 inches/water, with a new engine. If not, then you might have a large vacuum leak.

I'm sure you've done the timing light trick to make sure spark occurs at the right time.

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post #6 of 29 (permalink) Old Jan 8th, 04, 12:34 PM
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You may end up having to make friends with someone that can help you one on one. You aren't giving us much to go on to diagnose it. When you reply "all tried - nothing" I'm not getting a warm fuzzy. For example I asked you if you smelled fuel indicating the engine was flooding and you had no comment. Did you really try it all? I'm not convinced. I think your problem is going to require an experienced set of hands and eyes.

[ 01-08-2004, 08:52 PM: Message edited by: dnult ]

Dave
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post #7 of 29 (permalink) Old Jan 9th, 04, 12:48 AM
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Quote:
Originally posted by rolling-robert:
all tried, nothing [img]graemlins/sad.gif[/img]
Here's a good thread to read.
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post #8 of 29 (permalink) Old Jan 9th, 04, 03:48 AM
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If you have tried all of this, I have a hard time believing that with absolutely no life to the engine with starter fluid (no occasionally catching cylinders...rough firing...something to indicate life) that it isn't the ignition system?

Even mal timed ignition systems will show life with fuel and esp starter fluid.

I would be looking at a very week spark that will NOT deliver under compression or in that department. Do you see a full 12.5 volts the distributor? What do you see when cranking? Are you pulling the battery so low that it cannot supply the ig coil enough wattage etc.

Simply put, if fuel is going down the intake, it has to be in the ignition or you broke the timing chain I hate to mention? But, if your distributor is turning and you say you have a visual spark then that is out!

Steve "Jack'stands" Jack

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post #9 of 29 (permalink) Old Jan 9th, 04, 04:13 AM Thread Starter
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ok, the battery was indeed a little low on juice, so i did charge the battery all night.

right now my starter is skipping, so i have to retighten the screws of that starter, after that ill try to start it again, hope it works.

ill let you know
thanks
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post #10 of 29 (permalink) Old Jan 10th, 04, 03:04 AM Thread Starter
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well, i gave it another go, but still nothing!

spark appears to be pretty bright and vacuum is good too.
And theres no flooding.

This project is now going on for 4 years, it ran better and was looking better the day before i started this project.

Quess i just dont have that talent, like u guys have.

Z28 1984
'77 355ci/COMP cam 218/224 .464/.470 114 LSA
rollerrockers1.5/9.72 forged pistons
ported '66 461 heads 1.94,1.5/Flowtech shorty headers
edelbrock 600/performer rpm intake
th350/shiftkit/hughes2500stall
4th gen 3.23 10 bolt POSI.
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post #11 of 29 (permalink) Old Jan 10th, 04, 10:23 AM
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thats crazy talk robert . i know it can be frustrating when things just don't go as planned, but you'll get it!
also, dont get down on yourself, because none of us "gearheads" were born with the knowledge, it was learned by doing what your doing now, and most imortantly learning firsthand from someone who has already been there. i started working on cars well before i was a teenager, and i still learn something new everytime i pick up a wrench (and no i'm not 14 [img]tongue.gif[/img] )
at this point you really need to find someone that can come over and help you out, i'll bet your way closer than you think you are.
you'll get it [img]graemlins/beers.gif[/img]

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1968 rs with an old school 354" SB2.2 pump gas motor.

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post #12 of 29 (permalink) Old Jan 10th, 04, 03:20 PM
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I do my best learning when I'm a$$ deep in it. This will be a good experience - trust me. It may not seem like it at the time, but will afterward I assure you. Just buy the beer and don't drink to much of it until you get the car back together. Fuel, fire, and air the three components - one of which is lacking or out of balance with the other two.

Dave
========================
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
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post #13 of 29 (permalink) Old Jan 12th, 04, 12:33 AM
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Do you have a distributor engine? No go with starter fluid makes me think the timing dropped out on you. Some gears have given problems then there's the timing chain. Maybe recheck TDC.
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post #14 of 29 (permalink) Old Jan 12th, 04, 01:31 AM
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Com'on here? YOu have got to be kidding!

IF you have fuel going down the intake, better yet starting fluid and it won't even make a pop...then I still think the ignition system is STILL suspect? What else can it be? Change the coil! Also if you have an HEI change the module along with the coil. Just because you see a spark does NOT mean that it's present under the duress of compression!

If you have some fancy smancy ignition system..ditch it for a performance upgraded HEI or substitute something in there to get a grip. If you have points, which I doubt, reset the dwell and change the coil.

Does it crank and just no catch at all? If so, it's got to be ignition. Make sure to check your ground to your engine. I have seen this happen before where the engine is relatively isolated electrically.

Steve "Jack'stands" Jack

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post #15 of 29 (permalink) Old Jan 12th, 04, 07:28 AM Thread Starter
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i just fixed my starter, and i placed my good working carburetor from my other camaro on this engine, so that cant be the problem.

Ill takethe distributor from my good camaro and place it on this engine too.

is it really possible that the timingchain skipped a few teeth???

It ran good until i shut it off.
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