I have a 2005 Acura TL and the very last step in the Actual Acura service manual for replacing a timing belt is:

Perform the crankshaft position (CKP) pattern clear/CKP learn procedure.

I see this on the Actual Acura manual, but don't see this on the Haynes manual for this car so I am thinking this might not be necessary. Has anyone ever had to do this and why would you need to do this after a timing belt replacement. Is this a rare thing that has to be done sometimes?

 

I really don't have a good answer, but I'd trust the 3" thick Acura Service Manual not 1" Haynes that has half the pictures wrong.

 

Thanks for answering! I just wondered. I changed the timing belt on my 2001 Honda accord V6 which is also a "J" series engine and never did this and again the Hayes manual did not say to. I don't know what the actual factory manual says for a 2001 Honda Accord V6, but I'll bet it has that procedure also. I am wondering if this same procedure is in all the Honda/Acura manuals, but rarely has to be done.

 

AFAIK, none of us who did our own TB service did that step and there have been no problems.

 

You got me curious I dug out my Acura service manual I realized I didn't do hat step either. I just made the little "bulge" was sticking out as to not rub on the timing belt.

 

What is this "bulge" you are talking about? I am figuring I can do this since I did a Honda Accord V6 and the instructions look pretty much the same, but i like to be prepared. By the way, if I choose to reuse the hydraulic tensioner can it be compressed using a vice? The Actual Acura manual shows using a hydraulic press. My Honda Accords tensioner had a "service screw" on the back of it which made retracting it easy.

After doing a few more Google searches, someone said that they only thought that this CKP procedure was there because it had to be done if the T Belt had snapped. If my T belt snapped this CKP procedure would be the least of my worries.

 

I scanned a crappy pic of the last page of the timing belt section of the Acura manual.



I highlighted in white showing how the piece is supposed to go on. You can see that it has a sort of wave in it.

 

Thanks for the picture. I got that right when I did my other car.

 

The service manual I spent $80+ is by far the best money I've ever spent on my car. I know you can get the scans online, but having the actual book when it tells you to see to section 6.3 is sure is a lot easier.

 

Plus I doubt many of us own the Honda programming tool needed to do that code clear/learn.

I would worry MUCH more about reusing a tensioner....bad idea,

 

Absolutely replacing the tensioner as well as both pulleys would be the best possible way to do a T belt replacement. I guess my thinking is that all of the dealers around here just replace the T belt and the water pump and that seems to be the "standard" at least for dealers in the Chicago area. They even advertise it this way in stuff they send in the mail.

Since they could sell another $200.00 in OEM parts (tensioner & pulleys) why wouldn't they recommend it? They would have every reason to recommend it for both extra profit on the parts and a a better chance of nothing going wrong for the customer in the next 105,000 miles. You know they absolutely know what lasts and what doesn't last. They see all the problems.

If these others parts failed this often wouldn't the owners manual say to replace them also at 7 years or 105,000 miles? I am sure they would. Just my thoughts....

Again, I am not saying that replacing these other parts is not a good idea. I just wonder how often these other parts fail. I don't know anybody with any brand/model of car that has actually had a T belt break and my guess is that there cars out there that have not had this service at recommended interval.

I finally replaced the one in my 2001 Honda Accord because it was now 12 years old (5 years over recommend change interval) and had 116,000 miles on it. I felt like I was pushing my luck going any longer than 5 years over the recommendation.