Re: Timing Belt Change How-To
Here are my timing belt job tips and problem issues.
Timing belt tips
(1) Have plenty of WD-40 ready to spray every bolt that will be removed.
(2) Don't be in a rush to do this job.
(3) Have an air gun rated at 500 ft-lbs to remove the crankshaft pulley bolt as well as
a puley holder.
(4) Put every piece you remove and all related nuts, bolt or fasteners in their own
ziplock bags and use a sharpie to label what you just removed
(5) Start with removing the Crankshaft pulley bolt. It took 30-45 mins to remove mine.
the bolt loosens to the left. When using the air gun do not use any other extension bars on
on the gun. That will lessen the effect of the force on the bolt. Every 2 mins give it a good
shot of WD-40 to loosen it up. It's a major pain but it will come off.
(6) Remove the cowl to get easy access to the rear spark plugs and rear cam timing mark.
(7) Since the cowl is removed, change your spark plugs. It's much easier to do now
(8) You can use a 1.5 mm cotter pin as the "grenade pin" on the timing belt tensioner when reinstalling.
(9) when re-threading the belt and reinstalling the tensioner, make sure you turn each bolt
on the tensioner 2 times and then alternate bolts. Do not be in a rush to get the tensioner
installed. Doing this may cause one of the timing marks on the cam to shift. Trust me
I re-threaded the belt 10 times when I did mine.
(10) When you rotate the engine 720 degrees, you can use a socket rotating the engine clockwise.
I did this 10 times to make sure that all three timing marks were bang on.
Problem areas for me
(1) Removing the power steering belt. I had to remove the nut on the power steering pulley to get
the darn thing off.
(2) The rear bolt for the motor mount broke. $17 for a new one. Had to get my buddy to hear it
up to remove the piece that broke off it.
(3) I grinded my upper timing belt cover instead of removing the cam gears. When I
realized that I now could allow water to get into the belt, I had to by some Red high temp
gasket maker and fix my screw UP!!! Don't grind away that cover.
(4) I had a real pain reinstalling the new power steering belt. Napa sold me the wrong size.
I just reused the old belt.
I started the job on a Monday night and finished on Wednesday night where the engine
Here is a breakdown of what I did on each day
Monday night - Got the Crankshaft pulley bolt off and then drained the
coolant the first night.
Tuesday - Spend time fighting with the power steering belts. Had to remove the pulley to get the
belt off. Had the rear motor mount bolt break, so had to bend the top part of it away
and then remove the aluminum timing belt cover and take it to my buddies and get it
removed via heat. Also went to Toytota to get a new bolt.
Removed everything else and grinded away the top timing belt cover to remove the water pump.
Installed the new water pump and put in the red gasket maker to seal it up. See pic.
Wednesday, I reinstalled the water pump, new belt and accessory belts and installed
new spark plugs and coolant. Fired it up at 8:30 pm and got codes P0100 and P0110. forgot to
connect the PCV valve and MAF to the air filter box. PHEWWWWWWW.
Thursday, bled the brakes and then put the cowl back in. HAd to run to the dealer to get some new
clips for the rubber weather strip on the cowl.
I finally got it done and it wasn't that bad. Considering I had just changed a timing belt and
water pump on a 97 civic by Monday morning. It was a great experience and leads to more
confidence in tackling and issues when it comes to working on my Sienna.
1998 Sienna XLE Silver Spruce Metallic
Air Lift 1000's
Bridgestone Ecopia Summer/Bridgestone Blizzaks Winter
284,xxx kms - Sold... soon to be retired from Siennachat....