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View Full Version : 3.0L Timing belt kits



mprivi
08-17-2015, 02:27 PM
I have a 02 3.0L Quattro with 95K. The valve gaskets are leaking and the car never had a timing belt service, so I figured its time. I have a mechanic that will do it for me and he said I can supply him the kit or he will get Audi Parts. I was just wondering what kits are better. I was looking at the Blauparts kit (http://www.blauparts.com/proddetail.asp?prod=GH21119%2DA). Anyone have another recommendations?

Also anything else I should do while he has the front end apart? Submount? Plugs?

Thanks in advance

john_gonzo
08-19-2015, 10:14 AM
That Blauparts kit is excellent. It includes a new snub mount, so install that too.

A new water pump and thermostat (with housing) are included with the kit. Before those are installed, the entire cooling system should be thoroughly flushed.

Plugs can be put in any time. Since they need to be removed for the TB service, they should be inspected while they are out. Then decide. NGK Platinum PFR6U-11G or NGK Iridium BKR6EIX-11 gapped at 11mm (.044").

The mech should inspect the PCV system. Valve cover gaskets on the 3.0 often leak due to a plugged or leaking PCV breather system. (Crankcase pressure builds and pushes oil past the gasket.) Some notes about that:
- The factory PCV system has corrugated plastic pipes. These pipes get brittle and are then prone to cracking and leaking.
- Some 'zine vendors offer replacement pipe kits. Some of us here have replaced ours with 3/4" heater hose and brass fittings. (Reused plastic fittings from stock system.)

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_PCV_heater_hoses_layout.JPG

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_PCV_heater_hoses_installed.JPG

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_PCV_heater_hoses_installed2.JPG


- The PCV valve itself (or "Crankcase Pressure Regulator valve" as Audi calls it) is also available. Here's a thread about that part:
If-you-ever-wondered-what-is-inside-the-3-0-s-PCV (http://www.audizine.com/forum/showthread.php/662285-If-you-ever-wondered-what-is-inside-the-3-0-s-PCV)


Depending on the state of PCV system, the covers may have sludge inside. Both valve covers have an inner baffle that can be snapped out for cleaning.

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_drvs_side_valve_cover_and_baffle.jpg

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_pass_side_valve_cover_and_baffle.jpg


The passenger side exhaust camshaft and cam followers are prone to premature wear due to poor metallurgy in early B6 3.0's and also due to moisture buildup and lack of lubrication caused by a faulty PCV system. Eventually the cam lobe will develop flat spots and the followers will be cupped (instead of flat). Ask the mech to check for this, especially the lobe closest to the firewall. Ticking noise from the valve cover while the engine is running is another sign of this.

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_pass_side_bad_exhaust_cam_lobe_due_to_oil_sludge _due_to_bad_PCV.jpg

http://www.audizine.com/gallery/data/500/2003_Audi_B6_A4_3-0_pass_side_bad_exhaust_cam_lobe_and_follower_due_ to_oil_sludge_due_to_bad_PCV.jpg

mprivi
08-19-2015, 01:54 PM
Thank you so much for the specifics. Should I also get this Blauparts (http://www.blauparts.com/proddetail.asp?prod=GJ12611-A)

john_gonzo
08-20-2015, 05:55 AM
Depends, but probably not a bad idea.

Replacing that serpentine belt tensioner during TB service would be essentially zero labor $. [up]

If you wait until it fails, you have no alternator, power steering nor A/C. Then you limp the car to the shop (if nearby) or get it towed. Replacing it requires the front end (lock carrier) to be put into service position, so there would be a labor charge for that.

Worst case, the old one is good, so you install the new one and keep the old one as a spare. Check the bearings for noise and rough spots, check the pulley for wear.

mprivi
08-20-2015, 06:16 AM
Depends, but probably not a bad idea.

Replacing that serpentine belt tensioner during TB service would be essentially zero labor $. [up]

If you wait until it fails, you have no alternator, power steering nor A/C. Then you limp the car to the shop (if nearby) or get it towed. Replacing it requires the front end (lock carrier) to be put into service position, so there would be a labor charge for that.

Worst case, the old one is good, so you install the new one and keep the old one as a spare. Check the bearings for noise and rough spots, check the pulley for wear.

Thanks again you've been a huge help.

SJorge3442
08-25-2015, 01:41 PM
Just wanted to chime in here. I installed the blauparts deluxe kit in October of 2013. Three months later my accessory belt tensioner broke. I wish I would have just changed it when I had the car apart, but I used to be cheap. After learning my lesson a few times, I tend to replace more than needed. Less headaches to worry about later on.

Sent from my HTC One using Tapatalk

imnuts
08-26-2015, 02:58 AM
Here is a list of everything that I had replaced when I got my timing belt changed last, which is what the dealership also changed when I had it done by them the first time. This basically is what Europa Parts sells if you get their timing belt kit and check all of the boxes in it minus the crank seal.

Water Pump
Valve Cover Gasket
Camshaft Seal Kit
Camshaft Cap Cover
Timing Belt
Timing Belt Kit
Timing Belt Roller
Timing Belt Roller
T-Belt Tensioner Lever
Thermostat
Drive Belt
Drive Belt Tensioner