Timing belt 1HZ motor
Submitted: Monday, Nov 14, 2011 at 15:00
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Member - Muddy79
Hi all
Need to change my timing belt and as this is the first time I have done one on this type of motor, any hints would be appreciated. Repair manual a bit vague.
Cheers
Mike
Reply By: Bob Y. - Qld - Monday, Nov 14, 2011 at 17:03
Monday, Nov 14, 2011 at 17:03
Muddy,
Haven't done one for a couple of years, but can't remember any dramas with the procedure.
Just make sure you line up the timing marks, after removing the cover, BEFORE you do anything else. I'd
check that the new T-belt you have is the same as the old one, before you remove it.
Depending on how many clicks the vehicle has done, you might want to replace the idler pulley too. Seem to remember that one or two of the notched pulleys might have a bit of free play in them, so just make sure that the pulley/s don't move too much, & throw everything out by a notch, once you've removed the old belt.
Good luck,
Bob.
AnswerID:
470007
Follow Up By: get outmore - Monday, Nov 14, 2011 at 18:42
Monday, Nov 14, 2011 at 18:42
Make that definitely need to change the idler pully when I got
mine done it was on the way to failure and was discoloring from heat.
Mechanic said he is frequently called out to
places where they can't start the cruiser after changing the belt. By then its too late and the head is lunched. Mate at work was set back 2k after doing this simple job
FollowupID:
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Follow Up By: dbish - Monday, Nov 14, 2011 at 19:32
Monday, Nov 14, 2011 at 19:32
Unfortunately i cant post pics here as i took photos of one i did recently. Its very easy to do . after removing the cover turn motor over till the 2 pulleys & there timing marks line up. Remove idler pulley & fit new one & fit new belt.
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744473
Reply By: Member - Joe n Mel n kids (FNQ - Tuesday, Nov 15, 2011 at 00:04
Tuesday, Nov 15, 2011 at 00:04
Hi Mike, the timing belts on 1HZ's are a very simple job but be warned, many, many engine failures lead back to a poor timing belt change out, one BIG mistake people make is how they lever the idler pulley to relese the tension to remove the belt and they very slightly bend the backing plate, hardly noticable but over the next 10-30,000 klms it will gently run the belt off, it will stress the belt on one half and one day in the middle of noware it will snap at about 3000rpm, valves will make contact with pistons and motor WILL be destroyed, no if's, maybes or buts it will be ruined .....
It is not hard to pick it up after as you find a black rubbery dust around the inside of the timing belt cover, you will NOT find that if the belt runs perfectlly ....
So with that in mind be VERY careful, replace the idler pully, bolts and backing plates and if you are not to sure get someone to do it and DONT go the "cheap" job, so many brag about how they can do it in 1/2 an hour bla bla bla and it is simple, any fool could do it and so on....
check out the "LCOOL" site and you will see what i mean, for me i would get someone with a good reputation to do it and offer you some warrenty, even $800 bucks is cheaper than a tow job from 500klms away, and the accom and so on...
Cheers
Joe
AnswerID:
470055