A3 - the road to recovery, a pictorial essay

Moderator: Mandeep D

Re: A3 - the road to recovery, a pictorial essay

Postby Mandeep D » Thu Jan 17, 2013 1:42 pm

Mandeep D wrote:I determined that an intake valve dropped. My research tells me that the FSI causes excessive carbon buildup on the intake because the valves never get "washed" with injected gas. The PCV system keep dumping junk in, however, and eventually the crap blocks a valve enough to cause interference I'm guessing. I'll be doing a full seafom cleanup on the new engine, and look into a catch can system to eliminate the goo.


^ A poor diagnosis I'm happy to say. I spent a little time on it last night, and I found that the balance shaft/oil pump assembly is pooched. After removal, the engine turns nice and freely :D There appears to be no eveident damage on anything else inside. Either the chain broke and jamed / stalled the engine, or wear on one of the balance shafts jammed the drive gears, which snapped the chain. One of the shaft bearing journals was ovaled about 1/8", so I'm thinking that didn't happen in a small amount of time.....

The reason I thought something kacked in the top end was that it would turn, but only a portion of a rotation. As it happens, that's where the broken chain would pile up and limit rotation. I remember at some point along the diagnosis path that I was considering dropping the pan without removing the engine, but decided that the damage was in the top end.... would've been much cheaper and faster if I had, but I would'nt have a 2.0T for my MKI like I do now :twisted:

It's fairly commonplace to delete the balance shafts anyway in the pursuit of free horsepower, and more oil capacity. "All" I need to drop it in the MKI would be:

Intake with MAF
Transverse mount oil pan, pickup, and dipstick
Engine mounts
Exhaust manifold, Turbo, exhaust
Interface to body wiring
proper fuel pump
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Re: A3 - the road to recovery, a pictorial essay

Postby wide_load » Thu Jan 17, 2013 2:39 pm

Sucks that you didn't discover that before pulling it but I can definitely relate to have a diagnosis stuck in your head just to discover it is actually something completely opposite causing the issue.

P.S. My offer for a 15k parts car still exists. lolz
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Re: A3 - the road to recovery, a pictorial essay

Postby Maraschino Larry » Thu Jan 17, 2013 3:51 pm

I purport you knew all along and just wanted to fsi your bunny :lol:
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Re: A3 - the road to recovery, a pictorial essay

Postby mushroom_curry » Fri Jan 25, 2013 2:42 pm

Lugtronic provides a plug and play custom harness solution that will plug into your stock MK1 fusebox.

So this is happening?
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Re: A3 - the road to recovery, a pictorial essay

Postby Mandeep D » Fri Jan 25, 2013 4:17 pm

This very well might happen.... I find myself with a Mk1 in need of engine, and a 2.0T in need of a home!
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Re: A3 - the road to recovery, a pictorial essay

Postby mushroom_curry » Fri Jan 25, 2013 4:25 pm

Let me know how I can be of support with respect to sourcing necessary transmission brackets, wiring, etc... anything.

I find myself feeling a little batty not searching for parts anymore.
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Re: A3 - the road to recovery, a pictorial essay

Postby Mandeep D » Mon Jan 28, 2013 10:19 am

mushroom_curry wrote:Let me know how I can be of support with respect to sourcing necessary transmission brackets, wiring, etc... anything.

I find myself feeling a little batty not searching for parts anymore.



OOOOH!! I deffo will! Thanks mang :love:
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