Flames through the CARB !!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

remist17 · 11-13-2010, 04:14 PM

Guys and Gals need some help

Just tried starting a 383 storker project and the motor runs for about 3 seconds dies. Starts back up runs 2 seconds dies, then just cranks and flames come from the carb.

Checked all wires and they are running correct. Setup timing to be 0 and went all th way up to 12 deg. Still doing the same. Getting about 5psi of fuel pressure. Pulled the bowl and foud #65 jets in the carb.

My setup
383 stroker
280H Comp Cam
Vortech heads
Airgap edelbrech intake
4160 Holley Carb
HEI dist.
ALL new never ran.

Please help me out, any suggestion on how to make the engine run and without flames.

remist17 · 11-13-2010, 04:17 PM

I am listing this also in this part of the forum as I need a quick response. I also posted in engine section.......

Just tried starting a 383 storker project and the motor runs for about 3 seconds dies. Starts back up runs 2 seconds dies, then just cranks and flames come from the carb.

Checked all wires and they are running correct. Setup timing to be 0 and went all th way up to 12 deg. Still doing the same. Getting about 5psi of fuel pressure. Pulled the bowl and foud #65 jets in the carb.

My setup
383 stroker
280H Comp Cam
Vortech heads
Airgap edelbrech intake
4160 Holley Carb
HEI dist.

Please help me out, any suggestion on how to make the engine run and without flames.

GmtGmt · 11-13-2010, 04:43 PM

it back fires so its ignition related

remist17 · 11-13-2010, 04:51 PM

would the distrubuter play a role in the backfire. I picked this one up from a buddy and he was not sure what it went to. IT is a chevy HEI distributer and appreared to be the standard one

ont_guy_38 · 11-13-2010, 05:21 PM

Sounds like maybe the distributor is out a tooth

HOGDADDY · 11-13-2010, 05:28 PM

Quote:

Originally Posted by ont_guy_38

Sounds like maybe the distributor is out a tooth

+2^ or even a crossed plug wire.

mongoose · 11-13-2010, 05:36 PM

180 out?

KQQL IT · 11-13-2010, 11:11 PM

Quote:

Originally Posted by mongoose

180 out?

yeah^^^

ont_guy_38 · 11-13-2010, 05:56 PM

Anyone of the above...lol

LONGHAIR · 11-13-2010, 06:00 PM

It sounds like you have at least one valve too tight. Check that firing order one more time.

UPDATE: Merged, Please don't do this

Quote:

XIV. Multiple Posting - It is simply not acceptable to post your question more than once, or to post it in more than one forum. Choose the forum that your question or post best fits in, and place it there and only there. If, after posting, you feel it should be in another forum, private message the forum Moderator and ask if they would move it for you.

One of the most annoying things that happens around here
"I know that it's against the rules......but I'm gonna do it anyway"

Arkansas50's · 11-13-2010, 06:07 PM

I had one do that. The distributor was 180 degrees out.

Youngbuck7072 · 11-13-2010, 11:29 PM

is it a new carb?

piecesparts · 11-14-2010, 11:46 AM

I would check the distributor's alignment for a start and then: Are you sure the rocker arms are adjusted properly? If they are too tight, then you could be getting backfire and the engine will not start.

remist17 · 11-14-2010, 03:16 PM

how do I check on the dist if its 180 out? Do I just spin it 180 deg and try it again?
I checked the rods prior to installing the motor and set them and had someone else check them who had done it before. They were good but Ill check again/

Carb is a new Holley 4160

80chevyshortbox · 11-14-2010, 03:30 PM

i had the same problem when i started my 350. turns out that my timeing was 180 degress out and i also had some spark plugs mixed up.

80chevyshortbox · 11-14-2010, 03:44 PM

also to check if your distributer is out 180 degress take out the number 1 spark plug and the distribiuter put your finger in the hole and crank the motor untell you feel air blow out the hole then drop the distributer back in and it should drop right into the number one position and it should fire right up if all your spark plugs are hooked up right.

or it was something like that im shure if i told you worng some one will tell you the right way to do it haha. my brain is kinda a bit fuzzy i have not done it since i was 14 hahaha.

justinburnett · 11-14-2010, 03:49 PM

it's firing when the intake valve is open, presumably, so i'd flip the dist around and try it that way. Don't know about the jets in your bowl, that doesn't sound like an indication of a good build, but I can't help you there.

piecesparts · 11-14-2010, 07:21 PM

A couple of things that I would do. (#1) bring the #1 piston up to TDC on the compression stroke. Then look at the balance and make sure that your timing mark is at the pointer. Next, check the distributor and see where the rotor is pointing. That will tell you is you are out of synch.
(#2) You said you chaecked your rods---OK---Now did you check your rocker arm adjustments for proper length. There is a trick to doing it on a cold engine, that inculdes rotationg the engine a couple cycles while you are doing it. You have to be careful that you don't compress the lifters too much.

geezer#99 · 11-14-2010, 09:20 PM

If you've been backfiring thru your carb there's a real good chance your power valve in your new Holley is ruptured.

remist17 · 11-15-2010, 11:22 AM

well kinda sad to say this.....

Looked at the engine last night..... well I left the washers on the carb studs and there was a huge gap between the carb and intake. I removed the washers and the truck started and ran ! Im stupid

LONGHAIR · 11-15-2010, 08:14 PM

Quote:

Originally Posted by remist17

well I left the washers on the carb studs and there was a huge gap between the carb and intake.

Well, that'll do it too....

jchav62 · 11-16-2010, 11:07 AM

Quote:

Originally Posted by remist17

well kinda sad to say this.....

Looked at the engine last night..... well I left the washers on the carb studs and there was a huge gap between the carb and intake. I removed the washers and the truck started and ran ! Im stupid

Next time someone asks this question, this will be the first thing suggested...

I'm glad you got it figured out...

remist17 · 11-16-2010, 05:05 PM

Quote:

Originally Posted by jchav62

Next time someone asks this question, this will be the first thing suggested...

I'm glad you got it figured out...

We started the truck and ran it to break in the cam. It was the first time I had to put hearing protection on with open headers....

I am thinking I should have gotten a quiter muffler !

Full build to come on the post

justinburnett · 11-16-2010, 05:12 PM

That totally sounds like something I would have done.

11-13-2010, 04:51 PM	#4
remist17 Registered User Join Date: Jul 2009 Location: PA Posts: 406	Re: Flames from the carb would the distrubuter play a role in the backfire. I picked this one up from a buddy and he was not sure what it went to. IT is a chevy HEI distributer and appreared to be the standard one __________________ 2013 Chevy Silverado, Z71, 5.3L, 4 door 2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40 Support the Troops.

11-13-2010, 05:21 PM	#5
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Re: Flames from the carb Sounds like maybe the distributor is out a tooth Last edited by ont_guy_38; 11-13-2010 at 05:21 PM.

11-13-2010, 05:36 PM	#7
mongoose Registered User Join Date: Feb 2009 Location: slurrey, bc. Posts: 1,134	Re: Flames from the carb 180 out? __________________ -'73 c/10 - Low with Go - will be complete... probably never. -'90 2wd Blazer - well... soon enough anyways. -'84 SWB - the daily gas guzzler.

11-13-2010, 06:07 PM	#11
Arkansas50's Registered User Join Date: Sep 2008 Location: Benton, Arkansas Posts: 71	Re: Flames through the CARB !!! I had one do that. The distributor was 180 degrees out. __________________ 1950 Chevy 3600 1951 Chevy 3100 1954 Chevy 3100 1954 Chevy 6400

11-13-2010, 11:29 PM	#12
Youngbuck7072 Registered User Join Date: Sep 2010 Location: Eugene, Or. Posts: 322	Re: Flames through the CARB !!! is it a new carb? __________________ ........................ __ ............._______\|__\____ ............\|_({})______({})] ................(O)..........(O)

11-13-2010, 04:14 PM	#1
remist17 Registered User Join Date: Jul 2009 Location: PA Posts: 406	Flames through the CARB !!! Guys and Gals need some help Just tried starting a 383 storker project and the motor runs for about 3 seconds dies. Starts back up runs 2 seconds dies, then just cranks and flames come from the carb. Checked all wires and they are running correct. Setup timing to be 0 and went all th way up to 12 deg. Still doing the same. Getting about 5psi of fuel pressure. Pulled the bowl and foud #65 jets in the carb. My setup 383 stroker 280H Comp Cam Vortech heads Airgap edelbrech intake 4160 Holley Carb HEI dist. ALL new never ran. Please help me out, any suggestion on how to make the engine run and without flames. __________________ 2013 Chevy Silverado, Z71, 5.3L, 4 door 2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40 Support the Troops. Last edited by remist17; 11-13-2010 at 04:16 PM.

11-13-2010, 04:17 PM	#2
remist17 Registered User Join Date: Jul 2009 Location: PA Posts: 406	Flames from the carb I am listing this also in this part of the forum as I need a quick response. I also posted in engine section....... Just tried starting a 383 storker project and the motor runs for about 3 seconds dies. Starts back up runs 2 seconds dies, then just cranks and flames come from the carb. Checked all wires and they are running correct. Setup timing to be 0 and went all th way up to 12 deg. Still doing the same. Getting about 5psi of fuel pressure. Pulled the bowl and foud #65 jets in the carb. My setup 383 stroker 280H Comp Cam Vortech heads Airgap edelbrech intake 4160 Holley Carb HEI dist. Please help me out, any suggestion on how to make the engine run and without flames. __________________ 2013 Chevy Silverado, Z71, 5.3L, 4 door 2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40 Support the Troops.

11-13-2010, 05:56 PM	#9
ont_guy_38 Registered User Join Date: Jul 2007 Location: Ontario Canada Posts: 1,006	Re: Flames from the carb Anyone of the above...lol

11-14-2010, 11:46 AM	#13
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: Flames through the CARB !!! I would check the distributor's alignment for a start and then: Are you sure the rocker arms are adjusted properly? If they are too tight, then you could be getting backfire and the engine will not start. __________________ Frank

11-14-2010, 03:16 PM	#14
remist17 Registered User Join Date: Jul 2009 Location: PA Posts: 406	Re: Flames through the CARB !!! how do I check on the dist if its 180 out? Do I just spin it 180 deg and try it again? I checked the rods prior to installing the motor and set them and had someone else check them who had done it before. They were good but Ill check again/ Carb is a new Holley 4160 __________________ 2013 Chevy Silverado, Z71, 5.3L, 4 door 2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40 Support the Troops.

11-14-2010, 03:30 PM	#15
80chevyshortbox Registered User Join Date: Jun 2009 Location: lethbridge Posts: 269	Re: Flames through the CARB !!! i had the same problem when i started my 350. turns out that my timeing was 180 degress out and i also had some spark plugs mixed up.

11-14-2010, 03:44 PM	#16
80chevyshortbox Registered User Join Date: Jun 2009 Location: lethbridge Posts: 269	Re: Flames through the CARB !!! also to check if your distributer is out 180 degress take out the number 1 spark plug and the distribiuter put your finger in the hole and crank the motor untell you feel air blow out the hole then drop the distributer back in and it should drop right into the number one position and it should fire right up if all your spark plugs are hooked up right. or it was something like that im shure if i told you worng some one will tell you the right way to do it haha. my brain is kinda a bit fuzzy i have not done it since i was 14 hahaha. Last edited by 80chevyshortbox; 11-14-2010 at 03:46 PM.

11-14-2010, 03:49 PM	#17
justinburnett Registered User Join Date: Sep 2010 Location: The Dalles, OR Posts: 392	Re: Flames through the CARB !!! it's firing when the intake valve is open, presumably, so i'd flip the dist around and try it that way. Don't know about the jets in your bowl, that doesn't sound like an indication of a good build, but I can't help you there.

11-14-2010, 07:21 PM	#18
piecesparts Parts and more parts Join Date: Nov 2003 Location: Lebo, Kansas (middle of nowhere Posts: 6,821	Re: Flames through the CARB !!! A couple of things that I would do. (#1) bring the #1 piston up to TDC on the compression stroke. Then look at the balance and make sure that your timing mark is at the pointer. Next, check the distributor and see where the rotor is pointing. That will tell you is you are out of synch. (#2) You said you chaecked your rods---OK---Now did you check your rocker arm adjustments for proper length. There is a trick to doing it on a cold engine, that inculdes rotationg the engine a couple cycles while you are doing it. You have to be careful that you don't compress the lifters too much. __________________ Frank

11-14-2010, 09:20 PM	#19
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,731	Re: Flames through the CARB !!! If you've been backfiring thru your carb there's a real good chance your power valve in your new Holley is ruptured.



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11-15-2010, 11:22 AM	#20
remist17 Registered User Join Date: Jul 2009 Location: PA Posts: 406	Re: Flames through the CARB !!! well kinda sad to say this..... Looked at the engine last night..... well I left the washers on the carb studs and there was a huge gap between the carb and intake. I removed the washers and the truck started and ran ! Im stupid __________________ 2013 Chevy Silverado, Z71, 5.3L, 4 door 2005 Chevy Silverado, Z71, 5.3L, 4 door, 3.40 Support the Troops. Last edited by remist17; 11-15-2010 at 11:23 AM.

11-16-2010, 05:12 PM	#24
justinburnett Registered User Join Date: Sep 2010 Location: The Dalles, OR Posts: 392	Re: Flames through the CARB !!! That totally sounds like something I would have done.

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