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I have a 2000 subaru outback and it is time for the timing belt to be changed. I have talked to various places about this and some say change the water pump and oil pump at the same time so you do not have to go back in later and do it. I do plan to own the car for many more years so it does make sense to me as labor costs on these things is expensive so why not do it while they are in there? If I was going to sell the car in a year or two it does not make sense to spend all that money now but as I said I plan to be driving it for a long time. So I am wondering what others have done when it was time to change the timing belt? Did you spend the extra money and change the water pump and ouil pumps or not? Thanks for any advice.
I'd spend the extra money and change the water pump with the timing belt. I've always done it that way, you'd only be paying for the water pump price as you've already paid for the labor. Usually it's about 120-200 bucks more. As for the oil pump, I've never heard of that, I've never changed the oil pump. I wouldn't worry about changing the oil pump but I'm also not 100% sure about the oil pump maintenance etc.... Hope this helps.
On my car make water pumps last 180k or so, so typically during the 140k timing belt change they are r&r'd. I would research the typical lifespan of you water pump, if it typically lasts longer than your next timing belt change you can always wait.
There's always a risk replacing something that isn't broken, IMO, I like to avoid doing any unnecessary repairs and disturbing what ain't broke!
I have a 2000 subaru outback and it is time for the timing belt to be changed. I have talked to various places about this and some say change the water pump and oil pump at the same time so you do not have to go back in later and do it. I do plan to own the car for many more years so it does make sense to me as labor costs on these things is expensive so why not do it while they are in there? If I was going to sell the car in a year or two it does not make sense to spend all that money now but as I said I plan to be driving it for a long time. So I am wondering what others have done when it was time to change the timing belt? Did you spend the extra money and change the water pump and ouil pumps or not? Thanks for any advice.
I would definitely do the water pump. Unsure of the oil pump but that depends on the model.
Another thing; go with top of the line parts, not just what's cheapest. One of my friends went all out to have his son's Camry serviced with a new water pump, T-belt, and engine seals. The water pump--which was the cheapest available--failed a few months later, tearing the belt up and causing a major headache. On some cars, it would be more like a catastrophe.
Ive done t-belts w/o water pumps and t-belts with pumps... neither time had any troubles. Its just preventative maintenance, thats all. And Ive known people who have replaced perfectly good water pumps with new ones and had problems with the new water pumps, which required removing the BAD new one and reinstalling the GOOD old one. lol Anyways, it wouldnt hurt to replace the water pump while doing the t-belt. Oh, be sure to replace the tensioner, too. As for the oil pump? Never ever heard anyone recommend doing that with a t-belt, but hey!
I don't know details of Subi maintenance but generally a water pump can last well over 200K and an oil pump which is the best lubricated component on the car is a very rare failure. I would not replace either as maintenance.
Old thread ... but on this car, the water pump is driven by a sprocket that wears with the timing belt.
Best to replace the water pump when doing the timing belt.
The oil pump does not need to be replaced, but it's prudent to remove the front cover and check the oil pump mounting screws. These have been known to work loose and cause a major oil loss which requires a tear down to this area all over again. A new front crank seal would then be prudent to install.
Camshaft seals a rare failure at this time, so I wouldn't replace them absent a sign of seepage.
The water pumps are pretty modest in cost compared to the expense of going back into this area again for all the labor time to change just the water pump. You'll never be closer. And the pumps in these cars don't typically last 180,000 miles ... nor, for that matter, do the water pumps in most cars that I work on.
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