Question about 1999 Subaru Legacy

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When an oil pump is supposedly "leaking" while a maintenance/replacement is being performed on the timing belt [at a 100K checkup], where would the leak be "leaking to"?

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The pump is driven by the timing belt, so the oil pump shaft sticks out of the engine to access the belt. The leak would most likely be the oil pump shaft seal.

Sounds like you’re skeptical.

Posted on Jul 07, 2010

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Hello,my 2000 odyssey leaks oil.guy said its front oil seal but im gonna need time belt,water pump,vtec valve and oil pan gasket.Do i really need all that just to change front seal? $400 for labor?


A leaking front seal will allow oil to get into the area where the timing belt is located. This will cause oil to get on the belt and can cause damage. Since the timing cover must be removed to access the front seal, it is recommended to replace the belt while you are in there. Also, the water pump is driven off the timing belt. Replacement of the water pump is always recommended when replacing the timing belt for two reasons. First, it is easily replaced at this time and it is good preventive maintenance. Secondly, the water pump bearing is under tension from the timing belt and develops a wear pattern. Replacement of the belt without replacing the pump will cause the new belt to wear the bearing in a different pattern, often causing leaking in a very short time after the replacement. This would then result in having to repeat all the labor again to replace the pump. It is easy to see that for $400.00 labor, you don't want to do that again in only 2-3 months. as far as the VTEC valve is concerned, I don't see a relationship to the oil leak. It could just be something else the mechanic found during the inspection. I can find nothing in the remove/replace procedures that requires replacement of the oil pan gasket. Again, maybe something additional that is needed from visual inspection, but not needed for the front seal.

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How often should timing belts be replaced


Trick question. The 2.7L has a timing chain and not belt. 3.0L needs a new belt every 60,000 but some companies sell a kevlar/nitrile replacement that's supposed to be good for 100K. Do the water pump at the same time. 2.4L needs a belt at 60K.

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Oil leak


If its a twin cam engine just replace both of them. They are cheap enough and if you buy locally you whould be able to return the one you don't need.

Personally I would replace both so you don't have to worry about it in the future.

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My vehicle has 107,00 miles on it what should I do to tune it up/


Thanks for choosing FixYa and welcome to the site. At your mileage, it is time to do a tune up anyway. You are going to want to change your serpentine belts. You will want to change your spark plugs/coils, wires, coil packs, distributor cap. You are going to want to change the transmission fluid and filter. Also, flush your radiator and change the coolant. You will want to purchase a new fuel filter and air filter also. It would be a good time for a new PCV valve to. If you want to balance the front end and tires, I would do it. If not, the tune up should increase engine performance. If you have any questions, feel free to ask and thanks for using FixYa.

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Have 65000 miles what has to be done to keep up my motor


Your best longevity check is to set up and maintain a consistent oil and filter replacement schedule...Depending on your planned driving habits...your owners manual should recommend you change these every 5000-7500 miles or every 3 months whichever occurs first. Oil products have inproved for many years. The synthetic oil blends are the best for performance and mileage...most exceed your Cadillac specs...Mobil 1, and Castrol full synthetic are by preferences...No special tune-up or other maintenance should be needed at this time...watch for serpentine belt...100,000 miles...plugs and plug wires...100,000 miles...suspension parts vary between 75K to 100K before replacement...Hope this helps.

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Timing chain on 2003 Suzuki XLT when do you change it? I am at 137,00 miles right now.


Most manufactures recommend changing a timing belt at 100k but I've seen them go several hundred thousand miles and no problem. I've also seen them break under 100k. The best maintenance is preventative maintenance or fixing things before they become a problem. I would recommend replacing it if you have the means to do so as you will also be replacing the water pump which is driven off the timing belt (do them together)..

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Most of the car dealers recommend to perform Maintenance services scheduled at 30K, 50K, 90K and so on.
At 30K they mostly inspect all the systems, and replace fuel filter.
At 60K they inspect systems and flush must of the fluids, transmission oil and filter, coolant, brake fluid, differential and transfer case fluid, and replace the air filter. Some replace the spark plus at 60K some at 100K.
At 90K all timing belts are replaced, and the status of the timing chain checked. A deviation of more than 5 degree means, there it is the time ayes on the timing chain.
At the Owners manual for 2005 Chevrolet Trailblazer recommend:
Inspect all the systems at 25K, and replace fuel filter.
Replace engine air cleaner filter, automatic transmission fluid, automatic transfer case fluid every 50K.
Replace spark plugs every 100K.
Maintenance Services for your car are scheduled at 25K, 50K, 75K,100K and so on. All are tune ups but they are not the same.
The only concern for GM is the GM Dex-Cool antifreeze. There are some complaints regarding this product. I recommend to flush the cooling system every 50K to 60K.

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Stearing box oil was leaking then belt from dianoma broken then engine is not working .mechanic told that broken belt and timing belt is changed ,he need to open head to repare the vave ,is it true . all...


The steering box oil leak and the timing belt problem may or may not be related. Oil will deteriorate belts. Timing belts should be changed from about 60,000 to 80,000 max. Most people neglect changing there timing belt (yours was probably over due). The overhead cam performance, inexpensive price of the automobile, and the room to have a larger motor in a smaller car all hinge on the timing belt design that you benefit from. The only down fall of this design is the fact that in higher performance versions of this engine , if the timing belt breaks the pistons will hit and bend/break the overhead valves. That is why manufacturers give you a breakdown of when you should be performing scheduled maintenance in your owners manual or warranty manual. Depending on the cost of the repair sometimes it is cheaper to replace the head with a complete assembly from a salvage yard than pay some one to rebuild the one you have . If your funds are limited I would price the repair both ways. A used head assembly might be less than the cost of the valves. your sweat equity can save you money.

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