- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
TIMING BELT HAS JUMPED A NOTCH OR TWO TOYOTA SPECIFIES TO REPLACE TIMING BELT`S EVERY 60.000 MILES AND RETORQE THE HEAD EVERY 40,000 MILES ANYTHING OVER THIS CONSIDER YOU SELF LUCKY .IN JAPAN THEY DISCARD WELL SELL TO AMERICANS AND ANY OTHER COUNTRY THAT WILL BUY THEM, ENGINE`S WITH MILAGE OVER 60,000. REPLACE THE BELT AND TESNOR!?
The water pump is driven by the cam belt and on some vehicles with an interference engine if the water pump failed and cause the cam belt to break then it could cause internal engine damage. Your 1997 Rav4 water pump is driven by the cam belt but is not an interference engine. So, not to worry as no damage has been done. Just replace the water pump and cam belt and all should be well.
Most engines now are what is called an interference engine this means that the if the timing belt breaks the camshaft may leave one of the valves open causing it to be bent as the crankshaft continues to turn as it comes to a stop, piston comes up and hits the open valve.
Special procedures are required for proper adjustments refer to emissions label (Under hood) or service manual
i just looked to see if i could copy and paste them for you and it wont let me.
it wont even let me look inside the book.
if your trying to setup the belt timing or the timiing gears you should get the info for that engine right out of the book.the book is only 21 dollars and will save you lots of time having it with you.book part number 92082 autozone has them and you may purchase it online.when you get every thing set just remember that both valves on number one cylinder should be closed with the piston of the same cylinder at top dead center.tdc.
be very careful as this is a very important step.
i hope this helps.
Zero tolerance means the valves may have hit the piston when the timing belt broke. I would suggest doing a cylinder leakage test to see if the valves are bent or not. If the valves are not bent then you can replace the belt and everything will be ok. If there are bent valves then the cylinder heads will need to be removed and repaired.
That Can Only Be Determined After Replacing the Timing Belt Or Removing the Head, It has Been MY Experience that About 20% DO Have Valve Damage. This is Aftet MY 30 Years As A Mech/Tech. I Normaly Advise Customer Of the Chances And R&R Timing Belt and as I Say Toyota Is Better than Honda About NOT Tapping Valves when jumping Time.