Firing order does not make sense
Race Director
Joined: Apr 2007
Posts: 11,152
Likes: 890
From: South Western Ontario
True enough, but if you didn't know you had a corrected cap and followed the cylinder order around the cap you would get 12468753 as the firing order.
Racer
Joined: Aug 2005
Posts: 355
Likes: 18
From: Corona Ca
Silly question, but as I read this last night I wondered if you are looking at the numbering of the cylinders correctly?
for Small and Big Chevy:
Firing order is 1-8-4-3-6-5-7-2
Left bank is ahead of right
Left bank is odd, 1-3-5-7, starting front to back
Right bank even, 2-4-6-8, starting front to back
After decades of working on Chevy's I pulled the plug wires on a 302 Ford to replace them. Took me hours to figure out that a Ford is different (in more ways than one)
Firing order is 1-5-4-2-6-3-7-8
Right bank is ahead of left bank
Right bank 1-2-3-4 starting front to back
Left bank 5-6-7-8 starting front to back
Good luck, hope this gets solved for you.
Tom
for Small and Big Chevy:
Firing order is 1-8-4-3-6-5-7-2
Left bank is ahead of right
Left bank is odd, 1-3-5-7, starting front to back
Right bank even, 2-4-6-8, starting front to back
After decades of working on Chevy's I pulled the plug wires on a 302 Ford to replace them. Took me hours to figure out that a Ford is different (in more ways than one)
Firing order is 1-5-4-2-6-3-7-8
Right bank is ahead of left bank
Right bank 1-2-3-4 starting front to back
Left bank 5-6-7-8 starting front to back
Good luck, hope this gets solved for you.
Tom
Racer
Joined: Sep 2009
Posts: 437
Likes: 3
From: Alvin Texas
Look at the Ford numbering. using the Chevy firing order.
Chev 1 8 4 3 6 5 7 2
Ford 5 4 2 6 3 7 8 1
#5 Ford = #1 Chev work the rest out. If us use the Chevy 1 becomes Ford 5, Chevy 8=F4, C 4= F2, C3=F6,C6=F3, C5=F7, C 7=F8, C2=F1
Won several bets on this. They are the same
Chev 1 8 4 3 6 5 7 2
Ford 5 4 2 6 3 7 8 1
#5 Ford = #1 Chev work the rest out. If us use the Chevy 1 becomes Ford 5, Chevy 8=F4, C 4= F2, C3=F6,C6=F3, C5=F7, C 7=F8, C2=F1
Won several bets on this. They are the same
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
Look at the Ford numbering. using the Chevy firing order.
Chev 1 8 4 3 6 5 7 2
Ford 5 4 2 6 3 7 8 1
#5 Ford = #1 Chev work the rest out. If us use the Chevy 1 becomes Ford 5, Chevy 8=F4, C 4= F2, C3=F6,C6=F3, C5=F7, C 7=F8, C2=F1
Won several bets on this. They are the same
Chev 1 8 4 3 6 5 7 2
Ford 5 4 2 6 3 7 8 1
#5 Ford = #1 Chev work the rest out. If us use the Chevy 1 becomes Ford 5, Chevy 8=F4, C 4= F2, C3=F6,C6=F3, C5=F7, C 7=F8, C2=F1
Won several bets on this. They are the same
bpassmore, you are legend!
Regards from Down Under.
aussiejohn
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Verdad Gallardo
Tech Contributor
Joined: Aug 1999
Posts: 14,379
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
No V8 engine ever produced has had a 16238547 firing order, and a GM engine cannot be made to run in this order. The OP has his cylinders mis-designated, indicative by the fact that he's listing #7 cylinder first in the order (which is never done).
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars
Drifting
Joined: Jul 2002
Posts: 1,944
Likes: 20
From: The only Corvettes in Highett Victoria
No V8 engine ever produced has had a 16238547 firing order, and a GM engine cannot be made to run in this order. The OP has his cylinders mis-designated, indicative by the fact that he's listing #7 cylinder first in the order (which is never done).
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars
Every modern production V8 engine ever made has the same basic firing order: the outer four cylinders fire first, and then the inner four. Or was it the inner four first and the outer four next????
Lars is right, if it's running well, leave it alone. Join a Corvette or muscle car club and have one of the members walk you through the firing order so that you will know how to fix it if you ever have to pull the distributor. It's not rocket science.
Due to the fact that we drive, relative to you, upside down and on the wrong side of the road, we have an entirely different way of routing the plug wires to make the engines run properly. If I hadn't spent some time with Lars a few years ago, I'd have never got my Corvette running properly.
Regards from Down Under.
aussiejohn
Drifting
Joined: Jan 2011
Posts: 1,853
Likes: 81
From: Hamilton Virginia
No V8 engine ever produced has had a 16238547 firing order, and a GM engine cannot be made to run in this order. The OP has his cylinders mis-designated, indicative by the fact that he's listing #7 cylinder first in the order (which is never done).
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars
If the engine is operating without a significant miss, the firing order is correct and the cylinder identification method by the OP is incorrect.
Lars