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Old 02-19-2010, 09:14 AM   #1
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2004 4cyl timing belt

Has anyone replaced one of these themselves. It should be replaced at 90K and I currently have 81k and don't want to bite off more than I can chew.

I have the FSM but wanted to see if anyone has done one. They are interference engines and if you wait too long you will be screwed if it snaps.

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Old 03-20-2010, 06:57 AM   #2
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I guess no one has done this job on their 2.4 engine. I just ordered the tools to remove and install the damper and will be ready to do it this summer when I get closer to the 90k mark.

I wonder what the stealershp charges, so far I have 180 invested in tools and the belt.

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Old 03-20-2010, 07:17 AM   #3
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I have never done it. But if I had to guess stealership costs I would ballpark 300.00. The thing with me is time. Is 300.00 worth a day I could be doing something else? Then again if you do it yourself thats one more thing you know about your jeep and your not dependent others. Remember if you do it yourself you can do a quality job. Just take your time. And allow time. I always allow 2 days for any undertaking because of murphys law. Also I usually do it on a weekday so I can get parts. A job like that I wouldn't trust AutoZone crap.
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Old 03-20-2010, 10:02 AM   #4
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I have never done it. But if I had to guess stealership costs I would ballpark 300.00. The thing with me is time. Is 300.00 worth a day I could be doing something else? Then again if you do it yourself thats one more thing you know about your jeep and your not dependent others. Remember if you do it yourself you can do a quality job. Just take your time. And allow time. I always allow 2 days for any undertaking because of murphys law. Also I usually do it on a weekday so I can get parts. A job like that I wouldn't trust AutoZone crap.
There will not be any rush to finish the job. It's my DD but I can alyways use the wifes car since we DD together.

I only buy OEM parts since I get them wholesale and they get delivered to my office so everything, except Honda, is just a phone call away.
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Old 03-20-2010, 04:45 PM   #5
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its not that bad, i do these on every vehicle out there. there's plenty worse. just keep in mind if you screw up you can ruin the whole top end of the engine.

if the tensioner is hydraulic buy a new one. and buy a water pump to, its driven by the timing belt, so replace it at the same time.
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Old 03-20-2010, 06:27 PM   #6
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X2 for jpdocdave

It will save you a head ache if you replace the water pump at the same time.
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Old 03-20-2010, 10:17 PM   #7
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Quote:
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its not that bad, i do these on every vehicle out there. there's plenty worse. just keep in mind if you screw up you can ruin the whole top end of the engine.

if the tensioner is hydraulic buy a new one. and buy a water pump to, its driven by the timing belt, so replace it at the same time.
I know it's an interference engine and when they break you bend some valves. That is why I plan to do it on time and not wait.

Isn't the water pump driven by the serpentine belt on the outside along with the PS, AC, & Alternator?
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Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 03-20-2010, 10:38 PM   #8
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nope.
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Old 03-21-2010, 06:21 AM   #9
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jpdocdave you are correct, that is something I never knew, every water pump I had to replace in the last 40 years was just bolted on the front of the engine. Thanks for the info and advice.
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Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 03-21-2010, 07:57 AM   #10
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Quote:
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jpdocdave you are correct, that is something I never knew, every water pump I had to replace in the last 40 years was just bolted on the front of the engine. Thanks for the info and advice.
Lottsa info on timing belt replacement. Hydraulic tensioner, water pump on the inside. WOW! who would of thunk. I wish I had access to all this info on all of my repair projects over the years. Good info fellas. I am glad Al Gore invented the internet.
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Old 03-21-2010, 08:00 AM   #11
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lol

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