Join Date: Nov 2013
Location: United Kingdom
County: East Riding of Yorkshire
New kid on the block here, but hope my comments help someone!
If any one has or is intending to pressure wash or steam clean their Alfa, or any engine for that matter with deep plug wells and/or coil over plug caps (eg Renault 16V etc), the 'Must Do' job following the wash is remove the cam cover plus coil packs and leads, then using a good compressed air supply, blow off the coil packs and leads, especially inside the caps and wipe everything thoroughly with an absorbent cloth to dry off, then spray with Duck oil or WD40!
When that's done, blow out the plug wells, because as sure as taxes and death, there will be water or at least condensation droplets down there which will eventually short the coil packs and leads good style!
When the wells are blown out, remove the plugs and give them a good wipe to dry them off too, then as per the manual, reassemble in the reverse order, preferably with a wipe of Copperslip on the plug threads!
A word of caution too! If you remove Any plugs (on any engine) without blowing out the wells, any crap or water in there will go straight into the cylinders and onto the valve seats either then (if you can see them down a plug hole) or when the engine is first started, and I'll guarantee it will misfire as a result!
I've just bought a 2.0TS Ph1 Spider, which during a faultless maiden 110 mile drive (AKA adrenaline rush) back home, developed a horrific misfire 3 miles from home (thoughts along the lines of "oh sh*t, have the fabled Alfa gremlins got me already" came to mind!
I went for the plugs first, expecting to find them a tad worn as there was no known service history with the car, and the sight that meet my eyes was something I've never seen before in 40+ years of vehicle servicing and engine prep', and I've repaired some real sheds in my time - every plug was absolutely caked in rust, and the oxide stains went right up the ceramic bodies of every plug into and over the caps, only water could have caused that mess and it was hell to get cleaned off in this case because it had been there so long!
So, don't believe those long sealed plug caps keep water out of the wells because they don't, my 2.0 16V Espace went sick in the summer when the local MOT station blasted the Top of the engine with a pressure washer instead of the oil slick Under it, which turned the car into a cripple that had to be sorted before the emission checks could be done, the plug wells were full of water despite tightly fitting insulated caps and bolted down coil packs!!
Now all cleaned up and back together, 'Alfie Spider' now runs like a dream other than for the occasional cough, which more or less replicates the 'How Much' one I made when I priced up and ordered a set of Platinum plugs for it!