Well, it is running now. New cam in - Team Camaro Tech
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post #1 of 18 (permalink) Old Feb 3rd, 08, 03:32 PM Thread Starter
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Craig
 
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Well, it is running now. New cam in

But running poorly. It took about 3 minutes of cranking to get it to fire. my Tach wasn't working, so I ended up ballparking the rpms to break in the cam. Once I ran it for about 25 minutes, I took it down to an idle. It was very hesitant to rev once I set the idle back down. Seems to be running rough. I may be off a tooth on the distributor. The more I pulled the vacuum advance towards the carb, the better it seemed to run.

Would year old gas be part of the problem here? How about a carb that also sat for about that same amount of time? I know I should have changed the gas and the carb, but I didn't.

No leaks so far.

Next weekend I'll put new gas in, and I hope to have a new carb by then.

Craig


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post #2 of 18 (permalink) Old Feb 3rd, 08, 05:46 PM
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Tim
 
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Re: Well, it is running now. New cam in

Congrats on getting it running.

Yeah year old gas they'll barely run.

Tim Smith
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post #3 of 18 (permalink) Old Feb 3rd, 08, 06:31 PM
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Re: Well, it is running now. New cam in

Congrats Craig!

It sounds like your timing is off for sure. Did you get a timing light on it?
Carb could be a bit gunked up from sitting too.





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post #4 of 18 (permalink) Old Feb 3rd, 08, 06:40 PM Thread Starter
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Re: Well, it is running now. New cam in

Quote:
Originally Posted by JimM View Post
Congrats Craig!

It sounds like your timing is off for sure. Did you get a timing light on it?
Carb could be a bit gunked up from sitting too.


I didn't get the light on it. Once it was done breaking in, I packed it up for the day. I just ordered a new carb (wanted one for a while) so I'll get that one this week. Went with a Holley 4160. Seems like a good all around carb. I'll get the light onj it this week too.

Craig


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Now you will see that evil will triumph, because good is dumb.
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post #5 of 18 (permalink) Old Feb 3rd, 08, 06:43 PM
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Re: Well, it is running now. New cam in

If the tank's not to full, lose the old gas, too. Slide an oil drain pan under the fuel pumpl, and puill the rubber input line off. All the fuel will siphon right out, you won't even have to suck the hose.





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post #6 of 18 (permalink) Old Feb 3rd, 08, 07:53 PM
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Re: Well, it is running now. New cam in

Old gas will foul the plugs also.If it skips and pops put new plugs in it.

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post #7 of 18 (permalink) Old Feb 3rd, 08, 08:40 PM
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Re: Well, it is running now. New cam in

I had the same problem for a while, In my opinion the gas shouldn't be the culprit at all, maybe a small small factor. I mean it doesn't help at all your real issue is probably deeper than gas, incorrect timing, too mucho camo, how's your carb set up.....
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post #8 of 18 (permalink) Old Feb 4th, 08, 07:02 AM Thread Starter
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Re: Well, it is running now. New cam in

I'm sure it is more timing than anything. The carb isn't helping either. The cam is the Voodoo 268, so I know it isn't overcammed or anything like that. There was a lot of smoke when I first started it up, but that stopped within about 15 seconds. I'll get the timing right and see where it goes from there. I'm not too worried.

Craig


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post #9 of 18 (permalink) Old Feb 20th, 08, 01:21 PM
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Re: Well, it is running now. New cam in

Hmm I have the Voodoo 268 also and can't get mine started. Been messing with it for months. It had better run like a bat out of hell if it is the cam causing so much trouble.

Chris

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post #10 of 18 (permalink) Old Feb 21st, 08, 03:29 PM
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Re: Well, it is running now. New cam in

Did you triple check the fireing order, might be a crossed wire....

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post #11 of 18 (permalink) Old Feb 21st, 08, 09:28 PM
 
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Re: Well, it is running now. New cam in

The minute you start up an engine you should check the timing on it and set it really close. Dont get all bent out of shape "breaking in the cam". Get the timing and idle set then break the cam in!!!
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post #12 of 18 (permalink) Old Feb 22nd, 08, 07:51 AM
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Re: Well, it is running now. New cam in

Chris, when you lined your timing marks up did you put the dot together? If you did, and then installed the distributor, you are 180* out. On a small block, when the dots are pointing together, that is #6 cylinder at top dead center. When you line the marks up and install the chain, you have to turn the crank one full turn to get the cam dot at 12 and the crank dot at 12. That will put you at #1 cylinder at TDC. Just a thought. I didn't know this for the longest time. I always wondered why my car wouldn't start and the dist. was always 180* out.

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post #13 of 18 (permalink) Old Feb 22nd, 08, 09:03 AM
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Re: Well, it is running now. New cam in

I am confused. If the dots are pointing together, then the cam is at 6 and the crank is already at 12, no? I always thought that it was number one on tdc, cam dot at 6 crank dot at 12. !?!?!?!?!?!?!?!?!?!?!

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post #14 of 18 (permalink) Old Feb 22nd, 08, 09:43 AM
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Re: Well, it is running now. New cam in

The crankshaft turns 2 revolutions to the camshafts 1 revolution. Both Dots at 12 o'clock on the gears IS firing No. 1. Dot to Dot (I hate that wording) IS firing no. 6. Charlie is right... Alan you are confused. NOTE: This is for a small block Chevy !

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post #15 of 18 (permalink) Old Feb 22nd, 08, 12:03 PM
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Re: Well, it is running now. New cam in

Well, it wouldn't be the first time. But I would rather make that mistake here than during a rebuild.



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