Transformation of pleasant family car to politically incorrect monster

[Bram]

Says there's an error!

Good I saved it on disk :mischeif:

[gedu]

Whoops, just realized that I had that small pic in that link.

Here is a better version:

[quattro20v]

Mayby put a aftermarket cooler, something like this:

http://www.034motorsport.com/product...roducts_id=710 :mischeif:

[gedu]

Hmm... that seems just thing I need

[Jamo]

Very very interesting project, how is the turbo hotside clearance with the Wagner manifold if you don't mind me asking?

[gedu]

No problems with clearances on hotside. Compressor housing is more tight in it's place, filterhousing heatshield needed some hammering to clear coldside.

I'll try to take pictures about it, have to lift head of. Most propably I have bent all my valves

[Bram]

Timing belt snapped? I don't hope so for you! Keep us updated and pray for the best

[gedu]

seems like I got away with my mistakes, no marks on valves nor pistons.

Need to put head back on (removed head in 2,5 hours ) and change rpm sensor, as don't have rpm input to VEMS.

[gedu]

Right. Head back on, manifolds in place, turbo hoses connected, dp bolted on, lambda on, egt sensor mounted. Need to mount hall sensor connector bracket, tighten timing belt and check water return hose mounting, then I'm ready to start trying to get motor running. Chargecooler needs expansion tank, have to figure out where to mount it, most likely somewhere near firewall, where there are quite much places to hang it on. Oh, and still need to sort hydraulics cooler.

[gedu]

Today I found at last the electrical gremlin that has been keeping on the edge for last 2 weeks. Found a melted wire that has quite astronomical resistance when measured with dvm. Got around 50mV from other ends connector when measuring against earth, and that wire should be supplying 12V to various parts of car.

Funny thing is, I haven't burned it myself, so some earlier owner perhaps has short circuited it at some time, and it stopped working now, after who knows how long.

Oh, and while debugging this problem, I also found some old relay from conlog, masquerading air-con relay

[gedu]

ARgh, still not running. No RPM signal in VEMS, now chasing that. Most likely I have broken something from ECU as there was some grounding problems. Need to measure some more, trigger signals seem to be kind of weird...

[gedu]

Been a bit lazy, and last 3 weeks have went by because some quite resistant Streptococcus pneumoniae bacteria have decided to live in my right elbows bursa. Good thing is, it hasn't spread from there, but these medications are no fun :S

VEMS should be now fixed though, but haven't had the motivation nor possibility to work on car, so don't know if all is well.

[gedu]

Hrmm, no editing last post then.

Measured triggers tonight with 'scope and found that Hall sensor is shorted. This might be the reason for no start, as it could mask out crank pin.

[gedu]

Got new hall sensor. When removing cam pulley key stayed on camshaft slot... 2nd pulley broken

And no wonder Hall wasn't giving any signal... the wasn't any sensor, only a bit of housing left

[Bram]

ok, good that you checked it at least!