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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKV-A5 Golf/Jettas

VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old September 16th, 2019, 08:07   #1
TheRagnarok
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Join Date: Jul 2019
Location: Tallahasse, FL
Default 2006 Jetta TDI CAM Replaced!

I finally got around to replacing my camshaft after noticing copper streaks in the underside of the valve cover.
And when I tried to adjust my torsion to anything above 0.0 I would get loud valve a train slapping noise.
So I with a Colt Cam Stage 2 from KermaTDI and started/finished the job last Friday.
The old camshaft was worn, but not where I was expecting it!
I was shocked to find a rear stretch bolt on the #Cam Bearing Cap was in two pieces....
Some quick thinking and an extractor drill bit walked it out without any metal filings!
All of the injector lobes had deep pitted wear marks... and the rockers/rollers were in pristine condition.
What would cause this type of wear?
Also, the cam dropped in 100k miles ago by a previous owner had no chamfer to speak of! This is what caused the cut grooves into some of the lifter faces.









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Old September 19th, 2019, 10:29   #2
TheRagnarok
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Location: Tallahasse, FL
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Any ideas as to why the injector lobes wore in that way?
Should I be worried about the same happening to my Colt Cam?
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Old September 23rd, 2019, 07:17   #3
TheRagnarok
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Location: Tallahasse, FL
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Bump.
Car has been running great and my intermittent hot start issue is gone!
I also changed out my cracked oil pan for a hybrid pan over the weekend.
Does anyone have any advice on that injector lobe wear posted above?
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Old September 26th, 2019, 01:39   #4
Henrick
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Such wear has been observed on aftermarket replacement cams. If you search the forums, you'll definitely find the same/similar pics.
Are you owning the car since brand new? Any history of cam replacement in the past?
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Old September 30th, 2019, 14:09   #5
TheRagnarok
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Location: Tallahasse, FL
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The camshaft was replaced by the original owner at 100k.
I bought the car with 208k miles on the odo from the second owner.
Ended up fixing all oil the leaks and also replaced the timing belt/waterpump/tenstioner.
I was just worried about the injectors, and the rockers/rollers were in pristine condition.
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Old September 30th, 2019, 21:40   #6
Mach1
 
Join Date: Sep 2005
Location: Spicewood, Tx.
Fuel Economy: 49.3, 48, 21.2,19.99
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One of the cam brg caps bolts was broke? wow.. not good, with the marginal holding capacity of the design, I could see that cam walking/moving all over in there from the injector pressures.

Lucky that didn't take out the whole engine. good thing you did the cam.

Generally speaking...Its not a bad ides to go back in via VC and give it a once over on these cam jobs. Recheck everything even see how the cam is wearing.
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2018 F150 3.5 ECO 3.55 10spd 20s 2tone 26mpg 2turb
2006.5 DE DSG, RC2, Sunroof, 200K miles, 61MPG best
2005.5 Jetta-5 SP LSD Spec S2 130K ELF506 10-30W OCI=20k ORIGINAL CAM RSB Diesel custom 2.5DP/3" SS Pkg 1 Auto-dim mirror auto-WW auto-climate 248tq=150HP RC2 lowered 312 brakes

Last edited by Mach1; September 30th, 2019 at 21:51.
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