Timing Belt, Water Pump, and Thermostat--Replace all at once? - Nissan Forums : Nissan Forum
 
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#1 Old 12-25-2003, 04:08 AM
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Timing Belt, Water Pump, and Thermostat--Replace all at once?

Hello:

My 99 Altima GXE is at 78k miles.

I am thinking about changing my timing belt.

When exactly should I do that anyway? I heard some with belts snapped with no warnings at all.

A close friend of mine said when I do change the T-belt, I should also change the Thermostat and water pump as well.

Does anyone "been there, done that" agreed with this idea?
Comments, suggestions, criticisms, are appreciated.

Happy holidays !
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#2 Old 12-25-2003, 04:34 AM
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Altimas use timing chains,not belts.They dont need to be changed like belts do every 90K.

You altima should last you well over 150K+ with reg tune ups and oil changes.
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#3 Old 12-25-2003, 05:00 AM
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unless you're doing yourself, it would be cheaper to just buy a new motor!

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#4 Old 12-25-2003, 06:56 PM
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Been there done that and got the T-shirt too.

Altimas have steel timing chains - no need to replace belt as a routine maintenance item.

Water pump and thermostat - replace it if its broke - You don't have to pull the timing case covers to get to it.

On many cars with rubber timing belts such as some Hondas, Mitzubitsi's and Mazda'a the water pump is typically replaced with the timing belt since the timing case covers and timing belt has to be removed to gain access to the water pump. It saves labor on those cars mentioned above to do all of this stuff at once
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#5 Old 12-25-2003, 09:05 PM
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Actually Altima 4 bangers have two timing chains and two chain tensioners.

Always replace the chain tensioners when you replace the chains.

The mechanic or dealer won't do this unless you tell them to.

If your thinking about doing this yourself, allow many hours and have the tools and service manual. It usually takes a dealership all day to do this job. Have them remove the chain guides while they have it apart as they are not really needed.

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#6 Old 12-26-2003, 04:27 AM
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i have a 93 altima and began noticing a noise when the car was under a load (uphill). i took it to the shop and found out it was just the tensioner. they are fairly cheap and not that hard at all to change yourself, and the chain itself will probably last the life of the car. although be sure to inspect it while your there.
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#7 Old 12-28-2003, 08:05 PM
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I am well over 150k should I change my water pump now?? Dont want to wait till it goes bad.

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#8 Old 12-28-2003, 09:01 PM
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2 questions...

on altimas... do you also have to take off the timing belt to reach the water pump?

how do you know when your water pump is going bad?

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#9 Old 12-29-2003, 12:10 AM
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As a couple of others has said earlier in this thread - Altimas have steel timing chains (two to be exact) not rubber belts. Therefire, 60K mile timing belt replacement is NOT required. These chains are fix them when they are broke or during an engine rebuild.

A water pump needs replaced if the shaft wobbles, if there is no pressure on the upper radiator hose after the car is hot and you know the thermostat is good or coolant drips from the weep hole on the water pump. You should not have to remove the timing covers to replace the water pump.
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#10 Old 12-29-2003, 12:49 AM
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Change your thermostat, flush the radiator, Change your oil, oil filter, air filter, fuel filter, check your plugs/wires, vacuum hoses, radiator hoses, battery/terminal connections, belts, and change transmission fluid. If you do all that I bet you will be like 'damn I never thought my car would run so nice'

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#11 Old 12-29-2003, 03:41 AM
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the chances that you would ever need to replace the timing chain are slim to none in our cars. I just replaced the water pump on my car, and since I was already doing it, I replaced the AC belt and the alternator belt. other than that, there is no real need to worry about any belts. But, if you ever plan on going into the motor like that to the point you need to take the timing chain cover off, will most likely due to the oil pump going bad. to do that, you would need to take the cover off, and if you had it apart, replace the tensioners. The tensioners and guides will be the only real timing related issues you may have if your car is in pretty good condition.

But to keep your car running well, just do all the normal tune up issues. ^ listed above
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#12 Old 12-29-2003, 03:44 AM
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Quote:
Originally posted by thelostbrian
2 questions...

on altimas... do you also have to take off the timing belt to reach the water pump?

how do you know when your water pump is going bad?
the water pump will let you know its going bad because either coolant will be dripping out the drain holes on the pump and unto the floor under tha car from the seal going bad. Or the your car may start to overheat do to the coolant lose. and its the 2 serpentine belts you need to remove to replace the water pump, not the timing chain
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#13 Old 12-29-2003, 06:39 AM
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Quote:
Originally posted by TeamFreshstyles
the water pump will let you know its going bad because either coolant will be dripping out the drain holes on the pump and unto the floor under tha car from the seal going bad. Or the your car may start to overheat do to the coolant lose. and its the 2 serpentine belts you need to remove to replace the water pump, not the timing chain
thanks..

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