team illuminata

Oops, sorry. I forgot to post these two pictures. First one shows the oil and coolant passages on both heads, To me they seem identical.

10632582_4650881886570_1801364765633948559_n by Team Illuminata Motorsport, on Flickr


I'm a bit concerned about how some of the oil and coolant passages were seemingly blocked (red) or partially blocked (yellow) by the old head gasket. Is this normal?

10575274_4650904727141_1521189660366053610_o by Team Illuminata Motorsport, on Flickr

team illuminata

It looks like my refurbished head has hydraulic valves after all so it was decided to refurbish the head that came off. To that end I ripped into it. Not sure it's going to work out though.

10423694_4662952268322_3665118206738515884_n by Team Illuminata Motorsport, on Flickr

10599410_4662952428326_1516271255718620755_n by Team Illuminata Motorsport, on Flickr

10616674_4662952308323_4959051653940620140_n by Team Illuminata Motorsport, on Flickr

10423694_4662952388325_6340626939614127018_n by Team Illuminata Motorsport, on Flickr

10569053_4662952348324_4904993497782901578_n by Team Illuminata Motorsport, on Flickr


Can it be salvaged?

team illuminata

So I took the refurbished head apart to see if it really has hydraulic lifters. Indeed it does as you can see in the pictures:

Old head:



New head:



You can see the hole for the oil feed that doesn't seem to be present in the old head so it looks like this head is also setup for hydraulic lifters and didn't just get them by mistake. As all the oil and coolant passageways line up with the block it should work right?

team illuminata

So I've been thinking about using this hydraulic lifter head in place of the mechanical lifter head and what might happen. The way I see it everything needed to make the hydraulic head function should be contained within the head especially as it is exactly the same physical shape as the old head. It should bolt right up. The only thing it needs to function is oil pressure to operate the tappets but almost everything else in there needs oil too. There's going to be oil regardless. So then it occurred to me that this oil may get to the tappets via an oil passageway that was blocked off by the mechanical head's gasket and if I just use the same configuration gasket I could be blocking off that oil supply that it will now need. So I thought, if I place the head on some paper towels and squirt a little brake cleaner down the oil feed hole for each tappet I will be able to see which passage way through the gasket it flows through, right? I'll try it today if I get to the shop.


Now for some progress because there has to be progress, no matter how small. It's important. As it looks like this project is going to take waaaaay longer than I'd hoped I thought it wise to at least free up the hoist by bolting the sub-frame back on. Should be easy to push without an engine and transmission but impossible without a sub-frame.

10626642_4684375203882_8666075169268164165_n by Team Illuminata Motorsport, on Flickr

team illuminata

More head research. I wanted to make sure the rebuilt head would get it's required oil feed if I just bolted it on to the block to I back-fed brake cleaner through a few of the lifter oil supply holes and guess what? It feeds through an existing port which is common to the cam bearings. Therefore it should get the oil feed it needs, right?

IMG_5999 by Team Illuminata Motorsport, on Flickr


Now I just need a gasket and bolts. I checked the head thickness by the way: same as my old head.


I also acquired a third head for the sake of research. This was bought by a friend for use on a "10 valve turbo" engine but of unknown origin. He had it rebuilt but it doesn't have a cam. Intake valves are 38mm for what it's worth.

IMG_5995 by Team Illuminata Motorsport, on Flickr
IMG_5997 by Team Illuminata Motorsport, on Flickr

IMG_5998 by Team Illuminata Motorsport, on Flickr

The part number (casting number) and in fact the head itself are exactly the same as my rebuilt head. Researching the part/casting number produced a few hits suggesting it belongs to an Audi 5000 turbo. Interesting no?

So I think I'm ready to commit my rebuilt head to the block. I guess I should check that first though eh?

team illuminata

Sorry about the lack of updates. Been busy with domestic stuff and wheel sales. I did manage to cobble together a list of parts. Some of the part numbers might be right.

URQ parts by Team Illuminata Motorsport, on Flickr

If you have any of these or any correction or even something I've missed please let me know.

team illuminata

I've ordered around $1000 of parts from Jeff at Sunset Porsche-Audi and ECS but I'm missing a few hard to find NLA type pars. Perhaps you can help?


clutch slave cylinder 1
hall sender 1 035905065a
intake manifold bolt 1 N0147112
subframe bushings rear 2 857199419B

Anyone have any of these or a source let me know. Keen to slap this thing back together.

team illuminata

Uh oh, parts list just got bigger due to ECS's overly ambitious inventory system.

Now need:

clutch slave cylinder 1
hall sender 1 035905065a
*intake manifold bolt 1 N0147112
subframe bushings rear 2 857199419B
*cam belt cover rear 1 035109143
*head gasket 1 035 103 383 J
* lower cam belt cover 1 069109110

Parts marked * are going to hold me up

Anybody have any ideas?

team illuminata

Parts are starting to show up now. Going to be out of excuses soon.

Unfortunately I think these injector holders and the one injector are going to be wrong for this head.

10730823_4877057900829_2305598962791364810_n by Team Illuminata Motorsport, on Flickr


But all this stuff is going to be appropriate.

10641147_4896544827990_8614829789583874774_n by Team Illuminata Motorsport, on Flickr

team illuminata

Uh oh. One these things is not like the other.

14021_4902690701633_2807930600885551481_n by Team Illuminata Motorsport, on Flickr


The old engine mount on the left is 431199381N. The new one I ordered is 431199381J

Which one should I be using?