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Old 07-14-2004, 12:49 AM   #1
yimmer
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Default 1.8L FWD engine oil leak

Recently my oil leak has been getting worse, consuming about a quart of oil every 2 weeks. Looks like the leak is coming from somewhere inside the front plastic timing belt cover. The oil is leaking under car and i can see drops of oil seeping out from in between where the cover meets block. I'm thinkin its the head gasket??? Is this a common problem with the EJ18? I'm at about 105K miles...i was thinkin of replacing the head gasket along with the timing belt but it would be a great idea to swap the block with a EJ22 but still retaining the EJ18 heads. Is this conversion possible? How hard would it be? Thanks in advance.

Mike
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Old 07-14-2004, 01:55 AM   #2
Avenger
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Might just be a front crank seal.
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Old 07-14-2004, 11:38 PM   #3
SubaruImpreza_power
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it's the Front Crank Seal for Sure, I'm 100% sure on that.. I had my 2.5L 98 Forester do the same.. I got fed up with it so I got rid of it and got a 2003 Forester...

the seal is like what... $2?? but it's a bitch if you don't know how to do it.
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Old 07-15-2004, 03:46 AM   #4
yimmer
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Thanks...any suggestions on other parts that i should change while i'm at it (ie. timing belt)? Thanks
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Old 07-15-2004, 05:25 AM   #5
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How hard is it to change the crank seal and what will i need to do? Thanks
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Old 07-15-2004, 09:17 AM   #6
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Yep...it's the front crank seal. It's cheap to do yourself. Get a seal, a timing belt, and a waterpump. Do not forget the waterpump......I did mine last fall in an afternoon working at a leisure pace but didn't bother with the waterpump because I had no problems with the cooling system. After a few months (dead of winter) I started hearing what I thought was a noisy idler pulley until february when I found out the waterpump was making noise. It stopped making noise (and heat) on my way to work one night as it seized and broke the new timing belt.

I was late to work and my "project EJ25" wasn't even close to being done. Now I'm days away from the swappage and can't wait to get back behind the wheel of my car. At least I'm pretty sure the months of no power has fully reset the ECU!

Moral of this story? Change everything you can while you're in there. It's easy and not very expensive until it breaks.....


Jay Storm
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Old 07-15-2004, 05:26 PM   #7
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Thanks a lot Storm...I will try to do that before the summer ends.

Mike
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Old 07-15-2004, 05:29 PM   #8
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Front crank seal is simple simon.1 remove the fans 2remove the drive belts3remove the crank pulley4remove all the timing covers5remove t-belt tensioner6remove t-belt7remove 2nd crank pulley 8 remove seal. but back together in the reverse order.Just like that silly
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Old 07-15-2004, 07:17 PM   #9
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I heard the hardest part was getting the Crank Pully off? After that it's easy right?
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Old 07-15-2004, 07:36 PM   #10
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Once you get the covers off you want to put the crank bolt back on and rotate the motor so that all three marks align.

If you are not replacing the t-belt you better use a paint pen or similar to mark the belt at the timing marks. If you don't do this and then remove the belt you will be SOL.

While you are going through the trouble of replacing the crank seal you might as well replace the grommet behind the oil pump too.

You will need to compress the belt tensioner to install it. Either a press or a large c-clamp worked slowly will do the trick. You will also need something like an allen wrench to use as a stop pin in it.

It's not a terrible job. Just don't forget anything.
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Old 07-15-2004, 10:41 PM   #11
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haha if you mess the timing marks up then start the car.. you will truly be SOL.
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Old 07-16-2004, 12:48 AM   #12
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Quote:
Originally posted by SubaruImpreza_power
haha if you mess the timing marks up then start the car.. you will truly be SOL.
Not on a 1.8...he'd just have to retime the motor. Non interference is a blessing here!

Jay Storm
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Old 07-16-2004, 01:59 AM   #13
yimmer
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Thanks again everyone...found some good info on the ravensblade-impreza website but for a 2.5. I'm assuming its the same for the SOHC 1.8? I plan to replace the timing belt and the water pump as well.

Mike
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Old 07-16-2004, 10:31 AM   #14
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Quote:
Originally posted by Storm
Not on a 1.8...he'd just have to retime the motor. Non interference is a blessing here!

Jay Storm

hmm another good thing about the 1.8L

I don't think the vavles can strike the Piston can it? I'm not sure what you call it, But the 1.8L Pistons have like a Recessed part for the vavles, on the piston head.
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Old 07-16-2004, 11:33 PM   #15
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Valve relief? I think that's what you call the dishes in the piston. I think this helps contribute to it being a "non-interference" engine. The info on Ravensblade-Impreza is really useful. Also consider:
Timing Belt Thread
Endwrench 2.2 SOHC Timing Belt Replacement

Other useful information:
Use Phosphate and Silicate-free coolant b/c you will have to drain the old out to change the water pump. Also, don't forget the little black vibration damper that needs to be transferred to your new water pump from your old one. It kind of looks like an "L" shaped seal.

Here are some useful torque specs that should be about the same for your 1.8 liter:

*Crankshaft bolt: 130 ft-lb Or 94 3.6 ft.-lb
Camshaft bolts: 58 ft-lb
Water Pump bolts: 7.2 + 3 ft-lb
Thermostat housing bolts: 3.6 ft-lb
Oil Pump bolts: 5.0 + 3 ft-lb
Timing Belt Cover bolts: 3.6 0.7 ft-lb
Timing Belt Tensioner bolts: 7.2 0.7 ft-lb
Timing Belt Idler(s): 28.9 2.9 ft-lb

Power Steering/Oil Pump/Alternator
Belt lock bolt:18 1.5 ft-lb

Power Steering/Oil Pump/Alternator
Belt slider bolt: 5.5 1.5 ft-lb

A/C belt lock bolt:16.6 2.2 ft-lb

Good luck.

-Charles-
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Old 07-17-2004, 04:08 AM   #16
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thanks.
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