Timing Belt, Water Pump and Tensioner Pulley, is the engine an interference engine?

2001 HONDA CIVIC
125,000 MILES • 1.7L • 4 CYL • 2WD • MANUAL
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DWADKE
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Is this car listed above an engine interference engine? If the manual specifies a time and mileage for the timing belt, water pump and belt tensioner pulley change without specifying "whichever comes first" can you do it at the later of the 2 intervals? Do you have a diagram and steps to change it with the labor hours?
May 25, 2024 at 10:16 AM
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JACOBANDNICKOLAS
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Hi,

All Honda engines are interference engines except the 3.0L and the 3.6L V6 engines.

As far as the timing belt is concerned, it should be replaced if it hasn't been at this point. The water pump, in most cases, is replaced at the same time simply to eliminate the need to take things apart again. The water pump is driven by the timing belt on this engine.

As far as directions are concerned, let me know what you are looking to do, and I'll be happy to get you the directions. Also, note that the tensioners should be replaced at the same time as well. The idea behind the pump and tensioners is preventative maintenance. First, you don't want a tensioner to fail and allow the belt to jump time (Interference engine) and you don't want to have to remove the belt again to replace the water pump.

Just to show you why the pump is replaced, I attached a pic below. Note step 1.

Let me know.

Joe

See pic below.
May 25, 2024 at 7:23 PM
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DWADKE
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Hi Joe, thanks for your reply. I have ordered a kit with all 3 items and would like to replace the timing belt, water pump and tensioner. Please provide the replacement steps and a diagram if possible.
May 26, 2024 at 4:27 AM
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JACOBANDNICKOLAS
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Hi,

The water pump is in the upper post. As far as the tensioner and the belt, I attached the directions below. Note: the last seven pictures are for the timing belt tensioner. I cut out parts because they are already listed in the belt replacement directions. For example, step 1 indicated to remove the timing belt. LOL

I'm here to help if you need it. Also, before starting or trying to start the engine, rotate the engine a few times to make sure nothing is hitting internally or preventing you from turning the crankshaft. Remove the spark plugs to do this so the engine turns freely.

Let me know how things turn out for you or if I can help.

Take care,

Joe

See pics below.

May 26, 2024 at 7:38 PM
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DWADKE
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Also, I forgot to mention, the timing belt was changed at 75,000 miles 10 years ago. Now the vehicle has 125000 miles, i.e another 50,000 miles only. Should I change the belt this early?
May 27, 2024 at 3:57 AM
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JACOBANDNICKOLAS
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Hi,

If it was me, I would likely wait a bit longer. However, you may want to inspect it for wear. Chances are it is fine.

Let me know if I can help.

Take care,

Joe
May 27, 2024 at 6:22 PM