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post #1 of 30 (permalink) Old 05-14-2019, 07:39 AM Thread Starter
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2010 Forester Upcoming Head gasket repair

Hello,

Just completed an oil change and got what appears to be the common head gasket leak. It's not leaking coolant into the chamber so not critical. Just seepage around the heads. Oil consumption isn't alot.

I've got 163,000kms on the vehicle and was planning on replacing the timing belt plus idlers and water pump in the coming weeks.
I've bought the Aisin timing belt kit with water pump, that I plan on installing.
The current belt is starting to show wear. Small cracks have started to form.

I am planning on replacing the head gaskets but wont have the time till September which by then, I'll be sitting on 172,000kms roughly.

Does anyone now the risk of running this belt another 8-9k kms? If risk is high, my thinking is just replace the timing belt and AC belt( one and done deal) eat the cost twice on the ac belt. Then when I get the time in September, replace the pump and idlers, when I drain the system. Or just replace all those parts now with the kit and just drain the cooling system twice?

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post #2 of 30 (permalink) Old 05-14-2019, 07:49 AM
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It's a difficult decision. I had the timing belt, water pump, etc.. replaced about 2 years ago. But I also knew the HG were leaking as well at that time. But I left the HG alone as it was more a nuisance that the oil and coolant was leaking. The only reason I just in this last March had the HG job done, was when I sent an oil sample into Blackstone Labs that they confirmed coolant was mixing into the oil and the coolant level was rising between 2 different oil changes did I decide to bite the bullet and have the HG done. If the coolant level was not rising between oil changes, I probably would have left the HG alone. So when I had the HG done in March, I paid the extra $$ for another Timing Belt/water pump job as well.

The AC belt and Alternator belts are easy jobs so it's a toss-up. The only thing you'll be saving have those replaced now versus later is the labour costs. Since they have to come when the HG are replaced.

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post #3 of 30 (permalink) Old 05-14-2019, 09:07 AM Thread Starter
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@bman400 I forgot to clarify that I will be performing all the labour myself in my garage. Thanks for the info tho.
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post #4 of 30 (permalink) Old 05-14-2019, 09:12 AM
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If it was my car, my vote would be to hang on and do it all at once. It will be easier that way as well.
I also reuse that AC belt until it starts to squeal, usually get 2-3 installs on one.

I would like to see a picture of your timing belt to confirm. But I think it will be fine until Sept.

sleepstate

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post #5 of 30 (permalink) Old 05-14-2019, 09:32 AM Thread Starter
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I thought the AC belt was stretch fit and had to be cut to remove? If it can be removed without cutting, great.

Also I will get a picture of the timing belt up tomorrow and see what everyone thinks of the condition.

Sure would be nice to bang it all out in a one go.
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post #6 of 30 (permalink) Old 05-14-2019, 09:33 AM
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The AC belt on the 2010 is a stretch fit, no resuing it.
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post #7 of 30 (permalink) Old 05-14-2019, 09:43 AM
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I reused my stretch fit belt 2-3 times on my 2012 STI. Don't cut it, loosen the whole AC compressor and magically it's slack and falls right off.

It can be done, its up to you to make your own decision.

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post #8 of 30 (permalink) Old 05-14-2019, 09:43 AM
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Now... back to the actual discussion about the timing belt and headgaskets

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post #9 of 30 (permalink) Old 05-14-2019, 09:45 AM Thread Starter
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Quote:
Originally Posted by sleepstate View Post
I reused my stretch fit belt 2-3 times on my 2012 STI. Don't cut it, loosen the whole AC compressor and magically it's slack and falls right off.

It can be done, its up to you to make your own decision.
That makes sense.
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post #10 of 30 (permalink) Old 05-14-2019, 09:47 AM Thread Starter
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Quote:
Originally Posted by sleepstate View Post
Now... back to the actual discussion about the timing belt and headgaskets
Going to get some pics up tomorrow of the timing belt and let everyone chime in on the condition and weather to do it the belt right away or what till fall to do it when I do the HGs.

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post #11 of 30 (permalink) Old 05-14-2019, 10:53 AM Thread Starter
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Looking a HG kits. Any recommendations? Or should I just piece together my own part by part?

1A Auto seems to have a comprehensive kit but doesnt list it for my model and year. Is it not the same engine through out the 2000s across most models?
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post #12 of 30 (permalink) Old 05-14-2019, 11:27 AM
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@TylerS have you looked at Jackie's, @SubaruPartsGirl thread: Forester Timing Belt Kits

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post #13 of 30 (permalink) Old 05-14-2019, 01:00 PM Thread Starter
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Thanks. I do have the Aisin timing belt kit in the mail.

I will look into updating my info.
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post #14 of 30 (permalink) Old 05-15-2019, 07:03 AM Thread Starter
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So here are some pictures of the timing belt around the left pulley...

The inside toothed part of the belt looks good but the outside when stretched around the pulley is where the wear is showing more pronounced.
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post #15 of 30 (permalink) Old 05-15-2019, 04:07 PM Thread Starter
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Looking at this set for the rebuild.

https://www.rockauto.com/en/parts/fe...ket+/+set,5412

Seems to have more then I'll need for what I'm doing.
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