Timing Belt /Water pump replacement on my 99 Epic (Continued part 3)

[DRHRSH]

Now we are ready to remove and replace the 2 idler pulleys.  Its pretty straight forward.  The left one ( as viewed from the front) has a brass washer behind it.  Don't loose it or forget to put it back! The left one takes an allen socket to remove.


Now we are ready to deal with the timing belt.  If you look at the left (as viewed from the front) cam sprocket you will notice that the timing marks don't line up any more.  This is because when the tensioner was removed it allowed the cam sprocket to rotate a bit.  We will deal with this later.  The other cam sprocket and crank marks should be checked to confirm their positions.


The Toyota timing belt is clearly marked with R Cam, L Cam, and Crank. These marks confirm correct positioning of the belt.


Start with the Left cam ( on your right!) and line up the marks. Then route the belt down to the crank.  The crank marks are on the bottom of the gear and hard to see.  I took the picture from under looking up. The CR mark lines up with a dimple on the crank gear.




Continue routing the belt up to the Right cam gear ( on your left) I used an Oil filter wrench to rotate the gear slightly counterclockwise to realign the marks...then I slipped the belt on.


Notice how the belt lines up with the mark on the gear, but not with the mark on the housing behind it.  This is normal and when the new tensioner is installed it will line up again.


My new tensioner was slightly shorter than the old one.  Don't worry, it will work fine.


Install the new tensioner and after it's bolted in pull the pin to release the tension.



Notice how the right cam gear ( on your left) marks now line up.


Now it's just a matter of reversing the removal sequence and reinstalling parts.  The thermostat housing needs to be cleaned up.


Apply RTV to the flat surface and the new O-ring on the tube.  Apply a little grease to the O-ring.


Make sure your new thermostat is 160 degree  ( 71 degree C) and install with a little grease.


In case you forgot the routing of the serpentine belt ( I did!) here's a picture.


I hope this motivates those who have been thinking about doing this to go for it.  I have learned sooo much on different forums and feel it is important to give back.  I hope you found this helpful.  Good Luck!

[wakejunky]

Good Job. And great write up. only thing i recommend is not using grease to lubricate the o-rings, it will cause them to swell. we use 3M dry type silicone spray at the dealership.

[HCollado]

Fantastic write up.

Thanks for taking time to take pictures.

[Capt Rick]

Here are the parts break down to buy on line no tax support Epic marine:
Place order :
1356859095 Belt,Timing      $49.57  $15.00 
9676135035-Ring,O,ThermostatHousingToByPassCasting

Place second order:
1610059275 Pump,WaterCirculation,VT300i     105.58    $15 frt.
1350550030 IdlerSub-Assy,Timing Belt,No.1     58.19     
1350350011 IdlerSub-Assy,TimingBelt,No.2     58.47 
1354050011 TensionerAssembly,TimigBelt     41.97 
9091602454 Belt,V-Ribbed       $33.25
9091603113 Thermastat,VT300i     $24.92
9676119026 Ring,O,ThermostatHousing,Lower,Smaller      $1.58 

Thank Capt Rick

[Rambling Wreck]

Outstanding guide - many thanks.

Don't forget your last few hoses before going out on the water:)

[sailtl]

Thanks for the info. Well done. Even I can follow those directions. LOL

[DRHRSH]

Good Job. And great write up. only thing i recommend is not using grease to lubricate the o-rings, it will cause them to swell. we use 3M dry type silicone spray at the dealership.

Thanks for the compliment.  I hadn't heard about the grease on O-rings.  I've always done it in other applications and not had any problems yet.  It is a silicone based grease.

[ktdust]

Excellent job on the write up. After reading through it I'm thinking about trying it myself.

Any chance this will be added to the maintenance section?

[brad]

Awesome!  Thanks for the contribution.

[toyotafreak]

Wow!!! GREAT JOB!!!

First, how did the old timing belts look? Think I'm at 10 years, 400 hours. If you knew what you know now, would you have done it or waited?

Second, why did I think there was a cam job to do at teh same time, as in having to shim the crud out of the cams?

Thanks for the excelent writeup.

Perhaps we can get mr. lesman or mr. cyclone o post this into the maintenance section for all posterity?

[DRHRSH]

Wow!!! GREAT JOB!!!

First, how did the old timing belts look? Think I'm at 10 years, 400 hours. If you knew what you know now, would you have done it or waited?

Second, why did I think there was a cam job to do at teh same time, as in having to shim the crud out of the cams?

Thanks for the excelent writeup.

Perhaps we can get mr. lesman or mr. cyclone o post this into the maintenance section for all posterity?

Hey Derek, Thanks for the compliments.  To be honest the timing belt looked fine.  But at 11 years for my boat why take a chance?  I figured do it now in the off season and go for another 11 years without worry of grenading the engine.  $400.00 and a "days" work is a small price to pay for insurance.  Let's face it this engine will last a LONG time of taken care of. I don't know ant=ything about shimming cams?!?

[DRHRSH]

Sorry I guess I dont fully understand these forums.  My comments got buried in the quote?

Wow!!! GREAT JOB!!!

First, how did the old timing belts look? Think I'm at 10 years, 400 hours. If you knew what you know now, would you have done it or waited?

Second, why did I think there was a cam job to do at teh same time, as in having to shim the crud out of the cams?

Thanks for the excelent writeup.

Perhaps we can get mr. lesman or mr. cyclone o post this into the maintenance section for all posterity?

Hey Derek, Thanks for the compliments.  To be honest the timing belt looked fine.  But at 11 years for my boat why take a chance?  I figured do it now in the off season and go for another 11 years without worry of grenading the engine.  $400.00 and a "days" work is a small price to pay for insurance.  Let's face it this engine will last a LONG time of taken care of. I don't know ant=ything about shimming cams?!?

[lilfoo2225]

shim under bucket lifters. huge huge pain in the ass and very time consuming to do.