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Old 04-29-2001, 12:48 PM   #1
WillReckXhop
Scooby Newbie
 
Member#: 4866
Join Date: Mar 2001
Location: NOR-CAL
Post the sequenceof a 4 banger

alright i did a serch for about 15 minutes couldnt find anything. This might be a very newbie question but was just wondering if this is how an engine works for an inline 4.

cylinder1
compressed and about to ignite
cylinder2
sucking the air fuel mixture in
cylinder3
just ignited and full of exhaust gas
cylinder4
pushing gases out

if this is how an inline 4 works was just curious as to how an inline 6 would work or like the acura vigor an inline 5? very sorry if this has been talked about many of times.
thanks
peace
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Old 04-29-2001, 05:16 PM   #2
Andy_T
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Member#: 502
Join Date: Nov 1999
Location: Sydney, New South Wales, Australia
Post

The firing order of a typical in-line four is 1-3-4-2, so add that to your four-stroke sequence and you have the complete order of activities .

For a straight six the firing order is something like 1-3-5-6-2-2. A V12 is typically the same as the six, but bank A follows bank B: A1-B1-A3-B3-A5-B5 and so on.

Actually these are BMW firing orders but they are typical of inline engines. For vees (including boxers) it might be different; I would imagine a V8 to fire like two 4-cylinder engines, and a flat-four to fire like two 2-cylinder engines.
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Old 04-29-2001, 05:27 PM   #3
JGard
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Member#: 1904
Join Date: Jul 2000
Chapter/Region: TXIC
Location: Austin, TX
Vehicle:
2014 Lexus IS 350
01 Miata red

Post

They all can vary...but I'm guessing they don't. Most engines will say on them somewhere what their firing order is.
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Old 04-29-2001, 05:33 PM   #4
RidinLow
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Member#: 329
Join Date: Sep 1999
Chapter/Region: Tri-State
Location: NJ
Vehicle:
1995 325i
Arctic Gray

Smile

Tee Hee

<IMG SRC="http://www.howstuffworks.com/gif/engine-flat-4.gif" border=0>
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