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Old 01-17-2007, 10:08 AM   #1
kecksubaru
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Member#: 58361
Join Date: Mar 2004
Location: Reading, PA
Vehicle:
2002 Legacy L

Have a Nice Day? Do Oil pumps go bad at 65K or is it just the seal

Ok,

I did search about this but couldn't find the specific answer. Here is the story.

I have a '02 Legacy L, 2.5 SOHC with 65K. Found coolant leaking from left head and found the campaign wwp-99. The dealer did the additive, but i don't have confidence in that. So I am going to have the head gaskets replaced.

Now this is the thing. My dealer comes back and says, oh yeah and by the way, you also need an oil pump (because of a slight drip directly under the crank) and a water pump because the coolant was "foamy".

These are my questions:

1. How can you be sure the oil pump is bad by just doing a visual inspection with the engine fully assembled? Couldn't this also be the O-Ring seal?

2. Is it typically the oil pump or just a seal that has gone bad? I haven't noticed a tap.

3. Because the car is losing coolant, there would be some air in the system correct? Is it possible to say the water pump is bad but saying there is foam in the system? There is no bearing noise or anything like that and no coolant leak from the front of the engine. Only the driver side head.

4. I do have a Case ID from Subaru. They said that AFTER the job is complete they will evaluate the case and determine if they will provide some financial assistance for this because my car has a Phase II 2.5 and should not have this problem.

5. Is there anything else I should consider while the engine is apart? I was going to have them replace the timing belts while they're at it. Its due at 105K, but if I replace now it will be cheaper than doing it 40K later.

Thank you!
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Old 01-17-2007, 10:29 AM   #2
linsavy
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Join Date: Oct 2001
Location: Ontario
Vehicle:
1997 GF4-STiV3 clone

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The oil pump seal fails often, not the pump. The water pump should be good for a long time yet.
#4 is bullcrap, that is whole point of the campaign.
Doing the belt is a good idea.

I think you should have them pay for the HG repair. This may mean going along with the magic coolant additive for a few months. If it leaks more, then bring it in to show them that it didn't work and then get the HG repair under warrantee.
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Old 01-17-2007, 11:15 AM   #3
Plays_With_toys
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Location: Parker, Colorado
Vehicle:
1996 Legacy L wagon

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The oil leak is most likely the crank seal or the o-ring seal. I'd tell them not to replace the pump but instead those seals and ask to see the old crank seal, the old o-ring, and the gasket material scraped from the oil pump. I'd hate to have them say they replaced the seals and never even popped it open.

Timing belt is always better before an incident than after. As for foamy coolant, if its foamy and milky then that'd be a sign of headgasket issues. Usually water pumps aren't done until the timing belt is done 100K miles or so, so I can't imagine yours is toast just yet...
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Old 01-17-2007, 12:19 PM   #4
kecksubaru
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Quote:
Originally Posted by Plays_With_toys View Post
The oil leak is most likely the crank seal or the o-ring seal. I'd tell them not to replace the pump but instead those seals and ask to see the old crank seal, the old o-ring, and the gasket material scraped from the oil pump. I'd hate to have them say they replaced the seals and never even popped it open.

Timing belt is always better before an incident than after. As for foamy coolant, if its foamy and milky then that'd be a sign of headgasket issues. Usually water pumps aren't done until the timing belt is done 100K miles or so, so I can't imagine yours is toast just yet...
If i'd get the timing belts done now, would it just be better to do the water pump as well? The car has 65K on it. But by replacing both items, would that mean I shouldn't have any serious maint for at least 100K?
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Old 01-17-2007, 01:24 PM   #5
linsavy
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Most people only replace the WP at the second timing belt change. It's your money.
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