Engine Firing order Questions

Reply Subscribe

Thread Tools

Search this Thread

Jun 10, 2004 | 05:40 PM

Sohc Driver

Thread Starter

Honda-Tech Member

Joined: Nov 2001

Posts: 3,408

Likes: 2

From: McKinney, TX, USA

Engine Firing order Questions

I know the firing order is 1-3-4-2...but what I don't understand is...don't cylinder 2 and 3 compress together and 1 and 4 compress together? I know both are true...but don't understand why don't the plugs fire in snyc with the how the cylinders compress.

Khoi

Jun 10, 2004 | 05:54 PM

Chiovnidca

Honda-Tech Member

Joined: Apr 2002

Posts: 7,574

Likes: 6

From: Cincinnati,, Oh

Re: Engine Firing order Questions (Sohc Driver)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sohc Driver »</TD></TR><TR><TD CLASS="quote">I know the firing order is 1-3-4-2...but what I don't understand is...don't cylinder 2 and 3 compress together and 1 and 4 compress together? </TD></TR></TABLE>
Nope, it's a 4-stroke engine. They fire every other time, not together.

Jun 10, 2004 | 05:57 PM

gambo117

Honda-Tech Member

Joined: May 2003

Posts: 191

Likes: 0

From: Baltimore, MD

Re: Engine Firing order Questions (Sohc Driver)

when 1 is on the compression stroke 4 is on the exhaust. both may be at the top of the cylinder, but they are on different strokes. at this same time...1 being at just before tdc, 3 is on intake, 2 is on combustion.