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Old 12-10-2012, 10:25 AM   #1
Sky92x
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Default Water pump leaking. Replace timing belt too?

Sort of backwards to the usual question. The water pump is soaking wet after driving (along with the typical overheating/heater doesn't work stuff)

Should I hit the timing belt too, since they usually are swapped as a pair? Car has only 76k miles.
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Old 12-10-2012, 10:39 AM   #2
CanadianImprezaSTi
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The interval is 105k miles or 105 months (8 and a bit years). Yours is due next year anyway and you need to remove it to do the pump. I'd just get the kit with the water pump and do the whole shebang.

http://www.ebay.com/itm/GATES-TCKWP3...8472cd&vxp=mtr

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Old 12-10-2012, 12:14 PM   #3
cmiovino
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Just get it done and not have to worry about it for another 100k miles or 8 years.

Had mine done at 94k with an 2004... based on the time.
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Old 12-10-2012, 01:03 PM   #4
bako
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I do not understand how USDM subaru should change timing kit on 100k mile, and JDM subaru on 60k miles?

when we change timing belt and idlers on 100k km, they are quite worn out...

strange how you in USA can run timing belt suff for 100k miles!!!
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Old 12-10-2012, 01:17 PM   #5
art@grimmspeed
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Git R done while you are in there!
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Old 12-10-2012, 01:52 PM   #6
Rodwrx23
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I would go ahead and do the cam seals and crank seals too while you're at it
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Old 12-10-2012, 02:11 PM   #7
rkramer
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Quote:
Originally Posted by bako View Post
I do not understand how USDM subaru should change timing kit on 100k mile, and JDM subaru on 60k miles?

when we change timing belt and idlers on 100k km, they are quite worn out...

strange how you in USA can run timing belt suff for 100k miles!!!

There is a california mandate that more or less 'banned' 60k change intervals. Manufacturers had to figure out a way to get to 100k, so they most likely are using different idlers and belts to do it. It isn't a federal law, but manufacturers really want to avoid having USDM as well as USDM-California vehicles.


Generally the timing belts at 100k look like new, they are hard to tell from the one you are replacing. Idlers on the other hand are usually a little rough by that time.
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Old 12-10-2012, 03:25 PM   #8
Sky92x
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Will do. Will get the pulleys as well.

Thanks.
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Old 12-10-2012, 05:12 PM   #9
Prlbluwrx
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Ya I would replace all of the above listed at the same time for sure.
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Old 12-11-2012, 11:33 AM   #10
CalvinT
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If you're replacing the water pump, you've already done all the labor to replace the timing belt. Why do it again in another year or two if you have your car apart now? And if the dealer or a garage is doing the work. The labor for changing the timing belt is free.

Change the idlers and tensioner and not worry about them again. If any of them fail you're talking about a very expensive repair bill since you'll have to pull the heads off to fix the valve damage.
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Old 12-11-2012, 11:40 AM   #11
claythrow
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I would just do it now.
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Old 12-11-2012, 12:41 PM   #12
HinshawWRX
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Do the pump, belt, pullies, AND thermostat. Plus a good coolant flush.
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Old 12-11-2012, 06:49 PM   #13
hoffmanEstates
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Thermostat rarely fail. I.had my belt replaced 2 times and still original tstat
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Old 12-11-2012, 07:41 PM   #14
Mishmosh
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Do you know if the last coolant change you had included the Subaru coolant additive? I would even try Barr's leak stop before doing anything further.

Also, make sure it's not just coolant leaking past the lower radiator hose and wetting that area.
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Old 12-13-2012, 05:36 PM   #15
claythrow
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He didn't mention what year his car was but not all years use the additive, at least thats what the dealership told me with my 2004- just regular green.

I replace the thermostat anyway. It's such a cheap part, you are already in there, what's 5 minutes to insure you won't have to go digging in there for 100k miles. To each his own.
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Old 12-14-2012, 12:49 AM   #16
CalvinT
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There's a May 2005 End Wrench article that says to use the conditioner with all Subarus when the coolant is changed. Subaru TSB 09-47-07 says essentially the same thing. Technical Service Bulletin WWP-99 dated 02/2004 said to use it with certain 1999-2002 models with 2.5L engines that had a tendency to develop external coolant leaks at the head gaskets. For those vehicles Subaru extended the warranty for such leaks to 8 years/100,000 miles if the conditioner was used as prescribed. For those vehicles there was to be no charge for the conditioner.

It's cheap insurance against any pin hole leaks. But there are many who don't use it and do fine. Local dealers in the Phoenix area charge anywhere from $3 to $5 for it.

Unless you completely flush all the old coolant out with pure water it doesn't gain you anything to use the new Subaru Blue. Subaru says to stay with the old coolant change interval of 2 years/30,000 miles if the new blue coolant and green coolant are mixed.

I agree about replacing the pressure cap and thermostat. Just be very careful with third party thermostats. Not all will work properly. For example Stant makes two for my WRX. One is an OE type, the other is OE exact. They look very different. I'd only go with the OE exact which also comes with a gasket. Or better yet, buy a Subaru thermostat from a dealer.
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Old 12-14-2012, 12:54 AM   #17
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A while ago I noticed that coolant wasn't all the way to the top of my expansion tank when I checked in the morning before driving. I replaced my pressure cap and it fixed the problem.
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Old 12-14-2012, 08:00 AM   #18
HinshawWRX
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Quote:
Originally Posted by hoffmanEstates View Post
Thermostat rarely fail. I.had my belt replaced 2 times and still original tstat
Wouldn't say "rarely" because it happens more then you think. Plus it's a 4 dollar part and you're already in there. No reason not to honestly.
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