Firing order wont work - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 05-04-2004, 01:03 AM
Registered User
 
Join Date: May 2004
Location: Mass
Age: 30
Posts: 1
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Firing order wont work

I set the firing order on my 70 Chevelle Malibu, stock 307 but has a 69 350, to the standard 18436572 with number 1 at 4 o clock (standing in front, facing the rear) and 1357 on driver 2468 on passenger and it will not start. The old order was different and i was having misfire trouble so i set it to the correct order but now it will not turn over at all. The rotor appears to be 90 degrees off in the counter clockwise direction so i rearranged the plug wires to compensate for that. I know the old order was different and had misfires, but atleast it ran. If anyone has any advice please let me know.

Thanks

    Advertisement

Last edited by delory; 05-04-2004 at 01:45 AM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 05-04-2004, 04:35 AM
STUPID is as STUPID does...
 
Last wiki edit: Crankshaft Coalition Wiki Last photo:
Join Date: Nov 2003
Location: Stupidville, USA
Posts: 1,720
Wiki Edits: 1

Thanks: 11
Thanked 82 Times in 76 Posts
You need to get the #1 piston coming up on the compression stroke and then pull the distributer and re-phase it to the cam.
If the rotor is 90 degrees out just switching the wires is not going to get you what you need. The plugs need to fire at the right time as the piston is building compression and with your current "tune" thats not gonna happen.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 05-04-2004, 07:54 AM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Just put #1 back where it was and go from there. Actually #1 should be at 7 or 8;00. But as long as it is on # 1 it will run.

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 05-04-2004, 09:30 AM
Weimer's Avatar
Kenneth Howard hates you...
 

Last journal entry: door pics smaller
Last photo:
Join Date: Sep 2002
Location: Bellefontaine,Ohio
Age: 39
Posts: 572
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The #1 cylinder should be on TDC(top dead center), the rotor should be pointing at #1 which is about the 4:00 position. Then set the plug wires accordingly starting with #1 where the rotor is at is relation to the cap. Also, make sure that the timing gear marks are lined up dot-to-dot when the number #1 cylinder is at TDC. If everything is not lined up correctly....then it won't run.
Here is a diagram that I made to help people out whenever they ask this question.
Hope that helps you out.
Later,
WEIMER
Attached Thumbnails
Click image for larger version

Name:	sbc.jpg
Views:	1110
Size:	14.7 KB
ID:	1659  
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 05-04-2004, 11:05 AM
CurtisL's Avatar
Automotive tech.
 
Join Date: Nov 2003
Location: Kerrville Tx
Age: 34
Posts: 139
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
The dots on my timing gear both face up.. on the crank and on the cam and my chevy 350 runs fine like that.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 05-04-2004, 09:30 PM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
all v8 chevjpg.jpg

dang computer


Last edited by troy-curt; 05-04-2004 at 09:27 PM.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 05-04-2004, 10:42 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally posted by CurtisL
The dots on my timing gear both face up.. on the crank and on the cam and my chevy 350 runs fine like that.
That's because if the dots are pointing toward each other it's on #6 TDC compression, not #1. Both facing 12 o'clock is where you need to be for #1 TDC compression.
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 05-04-2004, 11:28 PM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Weimer,
Your diagram looks really good. And will work good. But just to clear things up, by the manual, number 1 in the cap is in the 7:00 position. As long as it's timed on # 1, and wired on # 1 it will run.

Troy

__________________
If you don't make mistakes. your not doing anything.

69 ss rs full custom camaro 98 ISCA grandchampion
69 ss rs bb camaro wifes driver
66 Elcamino 350/all dz parts,ac,windows,loaded,my driver
69 ss chevelle bb conv.fresh frame off
26 T sedan street rod
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 05-05-2004, 11:10 AM
CurtisL's Avatar
Automotive tech.
 
Join Date: Nov 2003
Location: Kerrville Tx
Age: 34
Posts: 139
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
then how come on the picture they both face each other and not up..?
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 05-05-2004, 12:03 PM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
You can line up the timing marks more accurately when installing the gear and chain.

Troy
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 05-05-2004, 03:01 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Timing marks...

Quote:
Originally posted by CurtisL
then how come on the picture they both face each other and not up..?
Hi..
Doc here

Just a question here Curtis...Are you saying your Timing marks BOTH Face the 12 o'clock position...up towards the top of the Engine...??

Cuz If it Ain't Dot to Dot...Cam at 6 o'clock and the Crank at 12 O'clock...either the Cam or the Crank is like, 180 degrees out I'd be thinkin...

My Manual say's... "Align the timing marks (Arrows) Before Bolting the Camshaft Sproket(s) in place. With the Sprockets in this position, The Number 1 cylinder will be at top dead center on the exhaust stroke (TDC on the Compression Stroke for the Number 6 Cylinder)"

And Shows the Dots (Arrows) Dot to Dot 12 and 6 o'clock respectively...

Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations

Last edited by docvette; 05-05-2004 at 03:25 PM.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 05-05-2004, 04:11 PM
troy-curt's Avatar
Shop Owner And Troll Hunter
 

Last journal entry: Detailing Eng. Compartment
Last photo:
Join Date: Apr 2003
Location: Prairie Grove Ar.
Age: 76
Posts: 2,646
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
That's the way you do it doc, If curtis takes his cam another 1/2 of a revolution his would be that way to. Or it would not run.

Troy
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 05-05-2004, 04:58 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Timing

Hi Troy,

Doc Again

Ok, Soo If I'm gettin' this right, I think, (therefore I have headaches..)
Were Actually Timing the Cam at Number TDC 1 Exhaust Stroke (After Fire) but TDC Compression on 6 Right? (bright shiny objects Pretty women...long legs headlights on the horizion...often Distract me...)
So in theory or practice actually #1TDC Compression will Actually be 12 O'clock Straight up on both of the Gears, Right?

Never Actually put any thought into it over the years, I just assumed dot to dot ...# 1 Cyl and it's all good..Tag it Bag it...

Selective Endorphin Missfire..Tune up time...
The 'Ol Geeze is still learnin'.....

Thanks,
Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 05-05-2004, 05:24 PM
BstMech's Avatar
NYOFP4RJ3CHRIS
 
Join Date: Sep 2002
Location: TN. In the corporate states of America
Age: 41
Posts: 1,552
Wiki Edits: 0

Thanks: 0
Thanked 1 Time in 1 Post
Yup.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 05-07-2004, 11:05 AM
CurtisL's Avatar
Automotive tech.
 
Join Date: Nov 2003
Location: Kerrville Tx
Age: 34
Posts: 139
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
so should i turn my cam another 1/2 a turn the car runs great right now but if it would give me more power to tear it down and reposition my cam then i will do it first thing in the morning. I had some people tell me that the vehicle will run like i have it but they have ended up messing up the valves when they have it like i do.
Reply With Quote Quick reply to this message

Recent Electrical posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 11:37 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.