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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

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Old Dec 19, 2011 | 01:42 AM
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Unhappy Need some info

Hello everyone need some info? Is it easy to remove the water pump on a 2000 gs300? f
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Old Dec 19, 2011 | 02:29 AM
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Depends on how mechanically inclined you are
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Old Dec 19, 2011 | 05:38 AM
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Shouldn't be so hard. The pump is driven by the serpentine belt, not the timing belt. So you need to drain the coolant, take off the serpentine belt and unbolt the waterpump. Shouldn't be much more to it.
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Old Dec 21, 2011 | 12:40 PM
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So the water pump bolts are accessible with out tearing the engine apart. I need to do the timing belt but I want to save money by doing the Water pump myself.
Would these be the correct steps:

1.Disconnect the serpentine belt
2.Loosen bolts on the water pump.
3.Remove the water pump
4.install new water pump
5.reinstall serpentine belt if good
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Old Dec 21, 2011 | 05:30 PM
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Wait!!! As far as I remember you have to take timing belt off to get to water pump so do it all at once!

What's wrong with your current pump? Leaking?
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Old Dec 21, 2011 | 06:23 PM
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Originally Posted by krispl
Wait!!! As far as I remember you have to take timing belt off to get to water pump so do it all at once!

What's wrong with your current pump? Leaking?

Interesting
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Old Dec 21, 2011 | 07:30 PM
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just checked my manual, never worked on a 300, but the manual indicates that you have to remove the timing belt and water bypass hose before you do the waterpump.
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Old Dec 22, 2011 | 06:15 AM
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There is nothing wrong with the pump, i wanted to save money when i do the timimg belt but i guess not. I want to do this my self but scared if my car start after im done. Does any one in the Chino,ca area know of a good place to have this done??I have seen post from $500.00 to $650.00.
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Old Dec 22, 2011 | 12:09 PM
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Originally Posted by Cezlex
There is nothing wrong with the pump, i wanted to save money when i do the timimg belt but i guess not. I want to do this my self but scared if my car start after im done. Does any one in the Chino,ca area know of a good place to have this done??I have seen post from $500.00 to $650.00.
I'm in Fairfield, down south from you....I could do it for you for good price after Christmas if you're interested.

Nevermind....I thought that you wrote Chico! lol


I'm in Bay ARea! hehehe

BTW....the only way you can save money on this service is if you do it yourself....Don't try to save money buy not replacing timing belt and just water pump because it's not worth it! OEM timing belt alone is only about $35!!!

Just get this: http://www.rockauto.com/catalog/moreinfo.php?pk=1798454

Last edited by krispl; Dec 22, 2011 at 12:16 PM.
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Old Dec 22, 2011 | 12:23 PM
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You need to remove the timing belt to access the waterpump. I'm going to post some vids below on how to do this. This is for a 2JZGTE, but it's almost the same for a 2JZGE motor. This is a multi-part series, so simply watch each part after this vid in youtube. This is an excellent instructional video on how to handle the work yourself.

http://www.youtube.com/watch?v=-fiHrC7xT5o
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Old Dec 23, 2011 | 11:00 AM
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Yes that is a great video, I do all work on my car but this is too scary for me one tooth to far and i muk up the timimng! Anyboby who is local to me (91710 area) who has done this before and is willing to help me out.I will pay u with lunch or beer u call it.
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Old Dec 24, 2011 | 08:07 AM
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I watched the video but it doesn't say anything about the waterpump. From what I have seen the timing belt only goes round the crankshaft pulley and the camshaft pulleys. The accessory belt on the other hand goes round the alternator, waterpump and powersteering. So i am not convinced the t-belt needs to be removed b/4 removing the waterpump.
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Old Dec 24, 2011 | 09:05 AM
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Having done this personally, you have to take the Tbelt off first. Although the belt doesn't directly drive the pump, it blocks the pump from being able to be pulled out with the belt in the way. In addition, coolant will spew out and get all over the crank pulley and Tbelt anyhow so you'd want to avoid that.

Attached is straight from the repair manual. Look at step 3 - Remove Timing Belt.
Attached Files
File Type: pdf
GS300 Water Pump Removal.pdf (82.3 KB, 545 views)
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Old Dec 24, 2011 | 10:15 AM
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Oh I see, thanks for the clarification.
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