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#50517 09/25/2005 6:11 PM | Joined: Jun 2005 Posts: 50 Member | | Member Joined: Jun 2005 Posts: 50 | On a 216ci. they say the fireing order is 1-5-3-6-2-4 this is good but which direction are they located? Is one by the fire wall? Thanks again Paul
PJP
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#50518 09/25/2005 7:39 PM | Joined: Aug 2005 Posts: 157 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2005 Posts: 157 | Well, there seems to be some variation where the #1 plug wire is located. Simple way to get things right: Rotate engine by hand until the little round ball bearing marker in the front of the flywheel is centered in the hole in your bell housing. (just to left of the steering column.) Check and see where the rotor in the distributor is pointing. That'll be #1 wire goes there. Clockwise rotation on distributor, so just finish the firing order from there. If you are installing the distributor, the vacuumn diaphram should be at about the 3:00 o'clock position. Here's a pic of my engine: 216 plug wires | | |
#50519 09/25/2005 8:45 PM | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Fred's descriptions are excellent. Here are two additional pieces of information.
1. The #1 cylinder is near the radiator (not on the firewall end).
2. You have a 50/50 chance of having the rotor pointing to #1 by lining up the ball on the flywheel - the crank rotates twice to fire all six cylinders.
To know if #1 is firing when the ball lines up. either check that both valves for #1 are closed (if you have the valve cover off) or take out the #1 sparkplug and put you finger over the plug hole, to see if there is compression as the ball rotates into position (your finger will feel air blown at it). | | |
#50520 09/25/2005 9:45 PM | Joined: Jun 2000 Posts: 2,773 'Bolter | | 'Bolter Joined: Jun 2000 Posts: 2,773 | Common practice is to have the rotor pointing toward the #1 cylinder in firing position.
Fred
52 3600
69 C-10
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#50521 09/26/2005 1:53 AM | Joined: Jun 2005 Posts: 50 Member | | Member Joined: Jun 2005 Posts: 50 | Thanks guys, will do in the a.m. Paul 
PJP
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#50522 09/26/2005 4:19 PM | Joined: May 2001 Posts: 1,904 'Bolter | | 'Bolter Joined: May 2001 Posts: 1,904 | More advice (that was given to me here) was to roll up some paper towel and put it into #1 spark plug hole making darn sure you don't push it all the way in. Then rotate the fly wheel. When you start to compress and approach TDC, the paper will fly out. In my case, it also made a whooping sound which was nice since I was under the truck at the time.
I've also heard there are whistles with 14 mm threads that you can use in #1 spark plug hole.
Finally, my buddy was finding TDC with a pencil when it broke off in the cylinder. That's not good.
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
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#50523 09/26/2005 5:28 PM | Joined: Jan 2005 Posts: 1,682 Extreme Gabster | | Extreme Gabster Joined: Jan 2005 Posts: 1,682 | Here's how the wires go on my 1946 235 engine.. [img] http://www.oldtruckstuff.com/235fire.gif[/img] I'm under the impression that the firing order/sequence is the same for both the 216 and 235.
an idea is only stupid if you think about it rationally.
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