timing belt?? - Subaru Forester Owners Forum
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post #1 of 7 (permalink) Old 02-06-2009, 05:52 PM Thread Starter
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timing belt??

i'm a new owner of a 1998 subaru forester and i've been hering things about the timing belt what is this about?

Last edited by offroader01; 02-06-2009 at 05:53 PM. Reason: forgot to add new
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post #2 of 7 (permalink) Old 02-06-2009, 06:03 PM
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Subaru recommends that the timing belt be replaced at 100,000 miles or 160,000 kilometres. At the same time they usually will replace the water pump and tensioner pulley.

If you don't get the timing belt changed at that scheduled time, the results could be catastrophic for your engine.

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Last edited by Duderotomy; 02-06-2009 at 06:44 PM.
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post #3 of 7 (permalink) Old 02-06-2009, 06:04 PM
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Keep an eye on those head gaskets too!

05 2.5RS
03 Outback
They live on.
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post #4 of 7 (permalink) Old 02-06-2009, 06:42 PM
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I totally agree with the above posts. If it slips or breaks your engine is toast! When in doubt change it and the water pump. I would check or replace the tensoner and pullies also. My brother in law and I changed mine. We shoulda looked at the tensoner a bit better I guess. It was good for 3 months and it slipped a few teeth and every valve got bent! Can't complain. Engine had over 220000 miles on it. And he offered to rebuild it for me. I can't wait till its done. Custom Wiseco pistons, STI rods, and who knows what else ?
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post #5 of 7 (permalink) Old 02-06-2009, 07:10 PM
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The timing belt is made of rubber and fabric, and it doesn't last forever. When it breaks, the valves slam into the pistons, everything gets tangled up, and the engine dies dead. It's called an 'interference engine,' and that's what we're blessed with. So the maintenance schedule calls for the timing belt to be replaced at intervals of 105k miles so that this won't happen.

Unfortunately, the timing belt also turns the water pump, and if its bearings give out and it seizes, this breaks the timing belt. I know. It happened to me on a previous (non-Subaru) car. The silver lining is that this got me to buy a Forester 6 months earlier than planned.

So, the general recommendation is to religiously replace the belt at the scheduled intervals, and while you have the engine opened up that far to also replace the water pump and a few other associated components. Search around here and you can find more discussion of what ought to be done as part of that job.

2003 XS Premium MT >200k miles! ● 2005 Impreza 2.5 RS MT ● Robin-Subaru Powered Generator
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post #6 of 7 (permalink) Old 07-14-2013, 07:09 PM
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hi im new here. i have a 1998 Subaru forester and it has approx. 162049 miles on it. my brother says i should keep and eye out in-case i need to replace the timing belt and water pump. i don't know much about cars at the moment so i was wondering how much it would cost to replace all those things and what i would need as well as what signs would indicate a necessary replacement. thx
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post #7 of 7 (permalink) Old 07-15-2013, 04:06 AM
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Welcome to the board.

You won't like this but if the Head haskets have not been done you are looking at 1200 to 1500. The Timing belt, water pump, 3 idlers, and tensioner are overdue if they have not been done. Thats about 1300. Those are Subaru shop prices.

Be careful what you wish for.
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  Subaru Forester Owners Forum > Technical Forums and Vehicle Assistance > Engine and Exhaust > EJ25 - 2.5L Non-Turbo (1998-2010)

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