pulling and putting an ej25 together-timing

farrell · 02-08-2008, 11:14 PM

ok, so im going to be asembling an engine tomorrow for a 00 rs. only thing i dont know how to do is set the timing. any tips or info? thank you!

also, when im swapping the engine (taking out old on and putting new engine in) is it easier to pull the trans out with the old engine and assemble it and put it in as 1 unit or leave the trans in and just pull the engine....

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Storm · 02-09-2008, 12:44 AM

If you don't have a manual, there are a few links to articles explaining how to do it. A search should bring up more than a few discussions as well.

I'd leave the trans in the car......less stuff to unbolt from underneath.

Jay Storm

ballitch · 02-09-2008, 10:19 PM

Definately leave the tranny in the car, you may think its just 8 or 10 more bolts to undo, but it is just a hassle. Timing is set via the stock ecu, assuming you have a stock ecu...and not some form of piggy-back or standalone engine management system.

I use a steel rectangular box tubing section positioned over the strut tower bolts, along with a section of chain, to hold the tranny up. This makes it easy to pull and re-install motor. Or you could just leave the jack there...but I only have 1 jack...

~Josh~

farrell · 02-10-2008, 12:10 AM

so all i have to do is but the belt on the car and the computer will do it all by its self??

Storm · 02-10-2008, 07:19 AM

Quote:

Originally Posted by farrell

so all i have to do is but the belt on the car and the computer will do it all by its self??

So long as you get the pulley marks lined up when you put the belt on. The ECU takes care of the spark and injector timing.

Jay Storm

my4isflat · 02-10-2008, 05:47 PM

To set cam timing all you have to do is make sure the timing marks on the crankshaft sprocket and cam gears are all pointing straight up and aligned with their appropriate timing marks on the block. The timing marks for the cams are on the backing plate for the timing cover and the timing mark for the crank is right by the crank position sensor.

Storm · 02-10-2008, 07:34 PM

....and the timing mark for the crank pulley is the hashmark directly on one of the sensor "teeth" on the backside of the pulley.....NOT THE ARROW on the front of the pulley.

Jay Storm

Plays_With_toys · 02-10-2008, 11:56 PM

So... what they're saying is, better invest in a manual that has diagrams before you thrash your new interference motor and have to replace it right away again.

Storm · 02-11-2008, 03:32 PM

I wouldn't even consider doing it without a manual of some sort.....

Jay Storm

klix · 02-26-2008, 09:22 PM

Quote:

Originally Posted by Storm

....and the timing mark for the crank pulley is the hashmark directly on one of the sensor "teeth" on the backside of the pulley.....NOT THE ARROW on the front of the pulley.

Jay Storm

Then what is that arrow for anyway???
... I thought I killed my engine in a legacy

It starts and runs like new and then as it warms up it freaks out, throws a cam code... then forget about driving it.... scanner shows 15 to 47 degree timing advance

Guess i'm under the hood again tomorrow, hope its okay... if I damaged a valve it wouldn't run smooth at startup like it does would it?

it was a 97 SOHC california... did they still use the non-int 96 2.2???

Storm · 02-26-2008, 11:24 PM

If you read the procedure in the FSM....the arrow is used to put the pistons in a safe spot for timing belt removal because one of the cams will spring off the lobes when you release the tensioner.

Quote:

Originally Posted by klix

Then what is that arrow for anyway???
... I thought I killed my engine in a legacy

It starts and runs like new and then as it warms up it freaks out, throws a cam code... then forget about driving it.... scanner shows 15 to 47 degree timing advance

Guess i'm under the hood again tomorrow, hope its okay... if I damaged a valve it wouldn't run smooth at startup like it does would it?

it was a 97 SOHC california... did they still use the non-int 96 2.2???

klix · 02-27-2008, 12:19 AM

good to know... the shop computer listed no such step.

after reading through a bunch of really old threads involving "the arrow" i am feeling better about this. Looks like if it was interference I would have noticed when I hand-turned the engine, kinda sucks to have to do it again, but o well... I nearly had that new engine early.

klix · 02-28-2008, 07:37 PM

I re-read the tech doc just to make sure I wasn't an idiot and it only mentions that the sprocket has a timing mark... it also clearly points to the front face of the sprocket

...so yeah, if you take your car to an independant shop make sure they know, cause they probably have the same "vague-enough-to-be-wrong" system

Anyway, for all that would like to know, the...
97 2.2 Cali. SOHC is non-interference
...or I'm the luckiest prick alive

02-08-2008, 11:14 PM	#1
farrell Scooby Specialist Member#: 47746 Join Date: Nov 2003 Location: east stroudsburg PA Vehicle: 2000 Impreza 2.5 RS Midnight Blue	pulling and putting an ej25 together-timing ok, so im going to be asembling an engine tomorrow for a 00 rs. only thing i dont know how to do is set the timing. any tips or info? thank you! also, when im swapping the engine (taking out old on and putting new engine in) is it easier to pull the trans out with the old engine and assemble it and put it in as 1 unit or leave the trans in and just pull the engine.... * Registered users of the site do not see these ads.

02-28-2008, 07:37 PM	#13
klix Scooby Newbie Member#: 45875 Join Date: Oct 2003 Chapter/Region: NESIC Location: NorthShore, MA Vehicle: 92 SVX, STG3 5MT 97 Legacy, SwapInProgress	...fyi I re-read the tech doc just to make sure I wasn't an idiot and it only mentions that the sprocket has a timing mark... it also clearly points to the front face of the sprocket ...so yeah, if you take your car to an independant shop make sure they know, cause they probably have the same "vague-enough-to-be-wrong" system Anyway, for all that would like to know, the... 97 2.2 Cali. SOHC is non-interference ...or I'm the luckiest prick alive

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02-09-2008, 12:44 AM	#2
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	If you don't have a manual, there are a few links to articles explaining how to do it. A search should bring up more than a few discussions as well. I'd leave the trans in the car......less stuff to unbolt from underneath. Jay Storm

02-09-2008, 10:19 PM	#3
ballitch Scooby Specialist Member#: 74907 Join Date: Nov 2004 Chapter/Region: NWIC Location: salem, OR Vehicle: 98 cam'd EJ251 Wrx Tranny,slowr than ish	Definately leave the tranny in the car, you may think its just 8 or 10 more bolts to undo, but it is just a hassle. Timing is set via the stock ecu, assuming you have a stock ecu...and not some form of piggy-back or standalone engine management system. I use a steel rectangular box tubing section positioned over the strut tower bolts, along with a section of chain, to hold the tranny up. This makes it easy to pull and re-install motor. Or you could just leave the jack there...but I only have 1 jack... ~Josh~

02-10-2008, 12:10 AM	#4
farrell Scooby Specialist Member#: 47746 Join Date: Nov 2003 Location: east stroudsburg PA Vehicle: 2000 Impreza 2.5 RS Midnight Blue	so all i have to do is but the belt on the car and the computer will do it all by its self??

02-10-2008, 05:47 PM	#6
my4isflat Scooby Newbie Member#: 120002 Join Date: Jul 2006 Chapter/Region: RMIC Location: Colorado Vehicle: 2000 2.5 RS, '95 Legacy w/325k mi (RIP)	To set cam timing all you have to do is make sure the timing marks on the crankshaft sprocket and cam gears are all pointing straight up and aligned with their appropriate timing marks on the block. The timing marks for the cams are on the backing plate for the timing cover and the timing mark for the crank is right by the crank position sensor.

02-10-2008, 07:34 PM	#7
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	....and the timing mark for the crank pulley is the hashmark directly on one of the sensor "teeth" on the backside of the pulley.....NOT THE ARROW on the front of the pulley. Jay Storm

02-10-2008, 11:56 PM	#8
Plays_With_toys Scooby Specialist Member#: 82556 Join Date: Mar 2005 Location: Parker, Colorado Vehicle: 1996 Legacy L wagon	So... what they're saying is, better invest in a manual that has diagrams before you thrash your new interference motor and have to replace it right away again.

02-11-2008, 03:32 PM	#9
Storm Scooby Guru Member#: 5218 Join Date: Mar 2001 Chapter/Region: MWSOC Location: SAUL'S Motorsports Vehicle: 96L Most Over- Developed Beater	I wouldn't even consider doing it without a manual of some sort..... Jay Storm

02-27-2008, 12:19 AM	#12
klix Scooby Newbie Member#: 45875 Join Date: Oct 2003 Chapter/Region: NESIC Location: NorthShore, MA Vehicle: 92 SVX, STG3 5MT 97 Legacy, SwapInProgress	good to know... the shop computer listed no such step. after reading through a bunch of really old threads involving "the arrow" i am feeling better about this. Looks like if it was interference I would have noticed when I hand-turned the engine, kinda sucks to have to do it again, but o well... I nearly had that new engine early.