firing order

[reptile610]

so i pulled the cap off of and in a rush forgot to mark them. i heard it's 1,3,4,2 but how do i hook them up for the cap. diagrams plz?

 

[Petescj]

Whichever one goes directly over your rotor wound be #1. Pull the plug on the first cylinder and turn the motor till you get to TDC. You can stick a flat screwdriver in there and when the piston hits it you'll be at TDC. Your rotor will then be "pointing at the #1 cylinder. Does that make sense to you?

 

[reptile610]

Whichever one goes directly over your rotor wound be #1. Pull the plug on the first cylinder and turn the motor till you get to TDC. You can stick a flat screwdriver in there and when the piston hits it you'll be at TDC. Your rotor will then be "pointing at the #1 cylinder. Does that make sense to you?

Yes but I didn't pull the entire distributor
Just the cap n unhooked all the wires

 

[Petescj]

The rotor should be pointing to #1. A quick look in my hayne catalog has the number 1 on the cap located in the back ( toward the firewall ) and close to the block as opposed to the fender. We"re talking a GM 151 right?

 

[jasonmark1993]

Thats a method to determine where the #1 plug wire goes on the cap. You need to get the engine up to top dead center, then place the #1 plug wire where the rotor is pointing.

You can take a chance and just put the timing marks at 0* on the pointer/balancer. Try and put the #1 plug wire on the cap where the rotor is pointing. You've got a 50/50 chance.

EDIt; just line up the timing marks and when the rotor is pointing to the back instead of the front, there's you're number 1.

 

[reptile610]

The rotor should be pointing to #1. A quick look in my hayne catalog has the number 1 on the cap located in the back ( toward the firewall ) and close to the block as opposed to the fender. We"re talking a 151 right?

Yes it's a GM 151 . I have read the order is 1342 and to go clock wise with #1 being the one closest to the engine

 

[Petescj]

Thats the correct order and that position is what shows in my manual. Closest to the engine and the number 4 cylinder.

Yes it's a 151. I have read the order is 1342 and to go clock wise with #1 being the one closest to the engine

 

[reptile610]

well i finally have spark. it's just misfiring from not having the distributor firing order set.

 

[reptile610]

Should be gm iron duke firing order....1,3,4,2

this is what im looking for. i just tried this and it didn't work. would having a SBC HEI distributor have anything to do with it?

 

[IOPort51]

just for my own curiosity, if you look at the top of the cap is there a little 1 marked near one of the wire towers? If so give that a try as #1 if it is different from what you are on now. If the distributor has never been out than this should work. seems as just about every motor I have ever worked on had the firing order cast into the intake manifold, does yours??

 

[Petescj]

With what I see the arrow should be the front of the motor.# 4 should be # 1. your 180 degrees out of time.

this is what im looking for. i just tried this and it didn't work. would having a SBC HEI distributor have anything to do with it?

 

[reptile610]

With what I see the arrow should be the front of the motor.# 4 should be # 1. your 180 degrees out of time.

how do u get that? i thought #1 cylinder was in the front of the motor?

 

[reptile610]

i just tried this one. apparently in michigan you can use your drivers license # and get a web copy of chiltons. which i just learned and is sweet! it had 2 other firing orders, one which made it backfire and the other made it blow out of the carb. this one made it seem to start for a second but now it's just cranking over and not starting.

 

[bondo258]

Just move number one to a different position. You'll find it.

Four different combinations. Till you decide trying other firing orders out of desperation. I'd stick with a chiltons description, myself.

would having a SBC HEI distributor have anything to do with it?

Is sbc short for small-block chevy dizzy? not sure that would fit a 4 cyl, or even function correctly.


Did you originally pull the cap off because of ignition issues? What was done/ did you replace the rotor, cap,etc...?

 

[Petescj]

My Haynes manual has # 1 where your illistration has # 4. Id just go with the method of bringing it to TDC and going of the rotor.

i just tried this one. apparently in michigan you can use your drivers license # and get a web copy of chiltons. which i just learned and is sweet! it had 2 other firing orders, one which made it backfire and the other made it blow out of the carb. this one made it seem to start for a second but now it's just cranking over and not starting.

 

[reptile610]

My Haynes manual has # 1 where your illistration has # 4. Id just go with the method of bringing it to TDC and going of the rotor.

Do u have a scanner u can upload it from? I'm going to try the tdc thing today or tmrw

 

[Petescj]

No that I dont. Best way I can tell you is on the illistration from Pelton 54 number #4 is #1. It would be the position on the cap closest to the #4 cylinder ( rear of the motor closest to the firewall ). The TDC way will garauntee its correct.

 

[reptile610]

No that I dont. Best way I can tell you is on the illistration from Pelton 54 number #4 is #1. It would be the position on the cap closest to the #4 cylinder ( rear of the motor closest to the firewall ). The TDC way will garauntee its correct.

i'll start tinkering in about an hour and keep you posted.

 

[reptile610]

she lives!!!!!! after looking at the picture i linked i noticed they had the distributor spinning couterclockwise. i changed 2 of the wires to make it correct and it started right up =]=]=]=] you guys have no idea how happy i am now

 

[Petescj]

Im still wondering wether I helped or hindered this?