Cam wear on BHW

CharlieT

Veteran Member
Joined
Dec 10, 2008
Location
Houston, Tx
TDI
Audi TTqTDI, B4V, B5.5V, '12 NMS SEL
I was hoping to avoid this... but looks like I have a lot more wear on my BHW cam than I originally thought.

Here is the #3 cam lobe, not sure if it is exhaust or intake ? It is the inside lobe on #3 (assuming #1 is front of car, closest to timing belt).



and another view of same...


Hard to see in the pics, but the best I could get.
It has a very sharp edge, chamfer is totally gone, and I can feel a significant flat spot near the tip of the lobe.
Lifter is very hard to see, but I do see some clear wear marks (gauling) in the centers of both #3 lifters that the other lifters do not seem to have.
Pics of lifters were impossible... but will take some once I pull the camshaft.

Looks like I am in for :

1x Camshaft 038109101AF $618.12
8x Lifters 038109309C $22.08 each
8x 038103714A - Rocker Shaft bolt - $4.08 ea
10x 038103714 - Camshaft Bearing Cap bolt - $4.08 ea

So, about $900 all in...

What else should I do while in there ?? TB is new, BS is done.
And anyone have a leads on the two tools I need to remove the camshaft sprocket ?
T10051 and T10052 ?? Found them online for about $80 each.
I cannot see how to get by without the T10051 Counter-hold tool ? Camshaft Sprocket retaining bolt is tightened to 100Nm.

History on this car is 100k miles, with full VW service by previous owner... but very likely with the wrong oil..
http://forums.tdiclub.com/showthread.php?t=249795

I have been trying to track down an intermittent hard start, and a rough idle... I think this cam wear may be the cause ?
http://forums.tdiclub.com/showthread.php?t=257992

But the good news is I got her for only $8500, on the basis that I may have to spend a few bucks..
http://forums.tdiclub.com/showthread.php?t=249500

So, $2.5k for BS and now $1k for the cam... I am still only $12000 in and have a car that should run and run....
 

Franko6

Vendor , w/Business number
Joined
May 7, 2005
Location
Sw Missouri
TDI
Jetta, 99, Silver`
The sharp edge on the cam lobe is a dead give-a-way.

If you are interested, I'm doing a cam re-engineer for the PD's. Look in the MK5 section.

I put part of the post up(no part pictures are posted yet). Basically, you drill an oil path to the top bearing shell, cut a radial groove in the top bearing shell to provide proper oiling to the camshaft and replace the tty bolts with a set of non-stretch 12.9 high chrome rolled thread rocker shaft and cam cap bolts, torqued to 45 and 22 ft lbs respectively. I hate paying $100 for bolts you throw away every time you look at the cam.
 

CharlieT

Veteran Member
Joined
Dec 10, 2008
Location
Houston, Tx
TDI
Audi TTqTDI, B4V, B5.5V, '12 NMS SEL
Frank,

Very interested, thanks !! I will go look.

(Thanks also for giving me some guidance / ideas on the phone for the 1Z head rebuild I had a few months ago... rebuilt it myself, huge sense of accomplishment, works great now !)

Especially interested in the new bolts.. TTY seems a huge waste..

Charlie
 

TDIsyncro

Veteran Member
Joined
Nov 14, 2005
Location
Saskatoon, SK
TDI
Audi/TDI x 2
Franko6 said:
The sharp edge on the cam lobe is a dead give-a-way.

If you are interested, I'm doing a cam re-engineer for the PD's. Look in the MK5 section.

I put part of the post up(no part pictures are posted yet). Basically, you drill an oil path to the top bearing shell, cut a radial groove in the top bearing shell to provide proper oiling to the camshaft and replace the tty bolts with a set of non-stretch 12.9 high chrome rolled thread rocker shaft and cam cap bolts, torqued to 45 and 22 ft lbs respectively. I hate paying $100 for bolts you throw away every time you look at the cam.
I followed this procedure this past weekend. It went well. I used a dremel and diamond bit for the groove in the bearing shells. Had one hairy moment when the drill bit tip broke inside a hole..but got it out after an hour of trying. lol I will check on things in a couple months just to see how it's all working.

I like the bolt change out idea. I would of done that too had I thought of it in advance. Next time. What a waste of money in bolts!

As for bearings, I just replaced bottom shells. Top shells were in new condition.
 
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