fireing order

[sweetdiesel]

Firing order: 1 - 2 - 7 - 8 - 4 - 5 - 6 - 3 ?
or 1-3-5-7-2-4-6-8??


Anyone know?

 

[LBZ]

Not to sound dumb- but why is this important?? We can't adjust valves can we? I thought TDC compression was the only important thing to know? At least on these motors.

 

[Kat]

Firing order: 1 - 2 - 7 - 8 - 4 - 5 - 6 - 3 ?

The first one

 

[McRat]

Type: 90� V-8 charge-cooled (intercooled) turbodiesel
Displacement (cu in/ cc): 403 / 6599
Bore x stroke (in x mm): 4.06 x 3.9 / 103 x 99
Block material: cast iron with induction-hardened cylinder walls
Cylinder head material: cast aluminum
Intake manifold: cast aluminum
Exhaust manifolds: cast nodular iron with steel pipe extension
Compression ratio: 16.8:1
Valve configuration: overhead valve, four valves per cylinder
Valve lifters: Mechanical roller
Firing order: 1 - 2 - 7 - 8 - 4 - 5 - 6 - 3
Fuel system: direct injection diesel with high-pressure common rail
Horsepower (hp / kw): 360 / 268 @ 3200 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LBZ) (Automatic transmission only) (Available beginning 4 th quarter 2005)
310 / 231 @ 3000 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LLY) (Automatic transmission only) (Available through 3 rd quarter 2005)
300 / 224 @ 3000 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (manual transmission), Chevrolet Kodiak and GMC TopKick (LLY) and Hummer H1 Alpha (LLY)
250 / 186 @ 3200 rpm (Chevrolet Express and GMC Savana) (LLY)
Torque (lb-ft / Nm): 650 / 881 @ 1600 rpm (2500 HD and 3500 Chevrolet Silverado and GMC Sierra) (LBZ) (Automatic transmission only) (Available beginning 4 th quarter 2005)
605 / 820 @ 1600 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (Available through 3 rd quarter 2005), Chevrolet Kodiak and GMC TopKick (LLY), (Automatic transmission only)
520 / 705 @ 1600 rpm 2500 HD and 3500 Chevrolet Silverado and GMC Sierra (LLY) (manual transmission), Chevrolet Kodiak and GMC TopKick (manual transmission) (LLY) and Hummer H1 Alpha (LLY).
460 / 624 @ 3200 rpm (Chevrolet Express and GMC Savana) (LLY)
Governed engine speed: 3250 rpm Silverado and Sierra (Heavy Duty), Kodiak and TopKick (Medium Duty) and Hummer H1 Alpha (LLY). 3450 rpm Express and Savana (LLY), Silverado and Sierra HD and 3500 (LBZ).
Crankshaft material/construction: forged steel
Connecting rods: forged steel, stress-fractured big-end caps.
Additional features: Turbocharger with charge cooling; exhaust braking (medium duty only); heated air intake; GM Oil Life System.
Source: GM Media

 

[sweetdiesel]

Not to sound dumb- but why is this important?? We can't adjust valves can we? I thought TDC compression was the only important thing to know? At least on these motors.

It is important when bagging up parts that are labled Cyl 1 to 8

The first one

Thanks

 

[LBZ]

Does this mean that there is another engine at MPL????

 

[McRat]

Pass - Driver
Firewall
7 --- 8
5 --- 6
3 --- 4
1 --- 2
Radiator

 

[sweetdiesel]

Does this mean that there is another engine at MPL????

No, I am at work but come Monday there will be

 

[sweetdiesel]

Pass - Driver
Firewall
7 --- 8
5 --- 6
3 --- 4
1 --- 2
Radiator

perfect thanks

 

[sweetdiesel]

Pass - Driver
Firewall
7 --- 8
5 --- 6
3 --- 4
1 --- 2
Radiator

that helps more for what im needing this info for

 

[NukleusX]

My firing order has a funny riddle! 15's too young, 36 is too old, and 24 is just right

 

[LarryJewell]

My firing order has a funny riddle! 15's too young, 36 is too old, and 24 is just right

But 36 is more fun

 

[McRat]

18436572 = SBC.

We had to memorize that when I was in HS.

They had a table with:

Distributor body
Rotor
Points
Cap
Capacitor
Hold down clamp
Plug wires
Coil
Coil wire

All laid out, right next to a SBC in an engine stand.

For an A, you need to start the engine in 2 minutes. 20 minutes was an F.

 

[sweetdiesel]

Please forgive my ignorance
Is Cylinder #1 always PS closest to the rad on a V6 & V8 motor?

 

[LBZ]

18436572 = SBC.

We had to memorize that when I was in HS.

They had a table with:

Distributor body
Rotor
Points
Cap
Capacitor
Hold down clamp
Plug wires
Coil
Coil wire

All laid out, right next to a SBC in an engine stand.

For an A, you need to start the engine in 2 minutes. 20 minutes was an F.

In 4th year Heavy Equipment Tech school, I had the same deal-except with HEI not points. I got a B+!
I'd probably fail now!!

 

[McRat]

On a Chevy, it's the cylinder that is closest to the radiator.

The heads aren't in perfect alignment, one sticks more forward.

Fords are

4 8
3 7
2 6
1 5

 

[Cobra#3747]

Pretty much which ever cylinder head is ahead is where #1 starts. After that the cylinder numbering can vary between makes, such as what Pat posted for Fords.

Never had the timed competition in High School. College on the other hand, we had a contest to setup an empty rear end housing, pile of rear end parts, pinion and carrier shims and tools required to measure and assemble. That was pretty fun. Even more fun was electricle class and bugging cars for the other group to figure out.

 

[sweetdiesel]

18436572 = SBC.

We had to memorize that when I was in HS.

They had a table with:

Distributor body
Rotor
Points
Cap
Capacitor
Hold down clamp
Plug wires
Coil
Coil wire

All laid out, right next to a SBC in an engine stand.

For an A, you need to start the engine in 2 minutes. 20 minutes was an F.

Pretty much which ever cylinder head is ahead is where #1 starts. After that the cylinder numbering can vary between makes, such as what Pat posted for Fords.

Never had the timed competition in High School. College on the other hand, we had a contest to setup an empty rear end housing, pile of rear end parts, pinion and carrier shims and tools required to measure and assemble. That was pretty fun. Even more fun was electricle class and bugging cars for the other group to figure out.

So you guys wanna come help me get my truck up and running? Due date is May 3rd

 

[NukleusX]

But 36 is more fun

Eh I cant agree fully, though partially. :rofl::rofl:

 

[Cobra#3747]

So you guys wanna come help me get my truck up and running? Due date is May 3rd

Sorry, no passport :angel: