NewHilux.net

Just a heads up to anyone that might be having any dramas with idler pulleys on their v6.
Going through a lot of mud and/or sand, or after steam cleaning the engine, the bearings seem pretty easy to self-destruct.
I have been through 5 in 20,000km.

The pulley you can only buy genuine from Toyota at between $56-$82, depending on:
*Which town
*which dealership
*Which side the salesman got out of bed this morning
*The correct alignment of a particular far off planet...

The bearing or bearing pulley assembly is not sold by any bearing shop in existence.

So, what you can do is:

1. Press out the bearing from the pulley (not meant to because it will usually destroy the bearing, by not pressing on the surface that is actually forming the interference fit, but not always) you may need a bit of heat.

2. There are two different bearing numbers 6302 and 6304(I think). Take these in and the bearing shop will tell you they can only get those bearings with a 15mm ID. Grab them (about $12 each).

3. Befriend a fitter machinist with access to a lathe. Get him/her to turn down a bush to 15mm OD, 10mm ID, with an interference fit on the outside race. Press this into your bearing, press bearing into pulley. You can use Loctite bearing retainer for peace of mind, however it just makes it harder when you have to press it out again 2,000km later.

4. Also, check the condition of your tensioner and belt, as when these go, they can cause premature failure of the idlers.

5. Does anyone else experience this problem? Or am I just treating her too rough, ha

Hi jock !
What´s is te pulleys or bearings ?
Wich part yo say ?
if you put any photos, may be can help.
I have a hilux V6 4.0 petrol engine. in Caracas, Venezuela

im sorry for my english !
Regards,
Luis

Hey mate

There will be three idler pulleys on the front of your engine, and one tensioner pulley. Your serpentine drive belt will run around these, and your other accessories - power steering, A/C etc.

Get some photos up in a sec.

Sorry for my Australian.
Jock.

Here is a link to the belt diagram. The ones I am talking about are labeled I/D 1, 2 and 3. The pulley marked A/T refers to the auto tensioner.

http://www.import-car.com/Content/Site3 ... 020467.jpg

Hope this helps.

I have a mate that runs a few bearing shops, he has had custom parts made in the past (jeep hubs, CV's etc) I wioll tell him there is a market, you bet he will get them made.

Hmmm....Commission

He already stocks Lux CV's N stuff, big seller he tells me.

You say after going through mud and sand OR after steam cleaning the engine...
I think its a combination of the two....cause touch wood I haven't been through any yet.

I wonder who could help me with bearings and lathes and stuff though?

Have noise coming from the engine and Im Informed it's coming from the idlers, there is also an oil leak from the crankshaft pulley (damaged seal). The garage has advised that I replace all the iddlers and the crankshaft pulley, they are saying its best practice recomended by Toyota. Im driving a 2005 4.0 V6 4x4 Hilux. Can somebody confirm if this is correct.

Chris
Botswana