1998 Forester engine noise *click click click*

[mohawkjo]

Hi,
I have 98 forester S with the 2.5 l engine, 168000 km
The engine is making a clicking noise, it seems to come and go. We had the
original engine change by Subaru @ 68000km under warranty, they said a
crankpin was loose, that sound the engine made at that time was more of a
clunk/clunk.

I been reading that this problem is valve lifter related, anybody have any
thoughts before I take the car in this week? Can it be fixed/noise
reduced? any thoughts?.... thnks

mohawkjo

 

[H]

Oil Pump!
How's the Oil Pressure?

 

[Juhan Leemet]

I have 98 forester S with the 2.5 l engine, 168000 km
The engine is making a clicking noise, it seems to come and go. We had the
original engine change by Subaru @ 68000km under warranty, they said a
crankpin was loose, that sound the engine made at that time was more of a
clunk/clunk.

I been reading that this problem is valve lifter related, anybody have any
thoughts before I take the car in this week? Can it be fixed/noise
reduced? any thoughts?.... thnks

That was my thought: hydraulic valve lifters. Now, I don't know the
particulars, and I'm ashamed to admit I don't even know what kind of cams
are in my '98 2.2L Legacy engine. I have had lifter problems on a V8
Mustang before, and I remember the "tick, tick, tick" noise it makes. It
might be only one lifter, hence the tick at 1/2 engine RPM. If the others
start to go, too, you could have a whole percussion section in there?!?

Does the problem occur with cold engine? hot engine? Does it come or go
when the engine warms up? Hmm, the oil is getting hotter, therefore
thinner, hence I would think it should get worse as the engine warms up?
Since the hydraulic lifter should get "leakier" with the thinner oil.