Hawkeye D

Hi all,

Why is it regarded that cylinder 3 runs the hottest?

Is this on any particular model, or all Subarus?

As I look into the engine bay from the front, what numbers are the cylinders?


Cheers,

Matt

alcazar

iTrader: (2)

It's not regarded, it's a known fact, to do with the design of the engine.**
It's on all Subaru flat four engines.
Looking in under the bonnet from the front, cylinder No3 is the driver's side rear.

**It's for that reason that Subaru include a tapping over that cylinder to take a sender for an oil TEMPERATURE gauge.

banny sti

iTrader: (68)

It is closest to the turbo and fed last by the fuel system, same on all the models.

Looking from the inside of the car

Cyl #1......Right side front
Cyl #2......Left side front
Cyl #3......Right side rear
Cyl #4......Left side rear

Hawkeye D

Cool, cheers guys.

GC8

Its at the end of the line in every respect, so when oil pressure/temp, coolant temp and fuel pressure are marginal its number three that suffers.

A parallel fuel supply will prevent the biggest killer, which is lean running causing termical big end failure.

Like 2003 all over again...

SirFozzalot

Nice bit of info there, was always curious which way they were numbered.