The engine has new temp sensor all around as well as a new thermostat.

How much for the tower?

He took a reading off the oxygen sensor and compared it to what was in the bentley and said it did not match? Not sure how long it was idling for when he took the reading.

I replaced every single sensor on the engine as well as the thermostat and housing unit.

It might be ground or the wiring for the sensor. Which one is the temp II? is that the one in front of the water pump or the one on left side of the push rod tubes on the drivers side?

My mechanic is a Nissan guy who is learning the VW Vanagon engine as he reads the manuals.

Robert NY

On Jul 19, 2009, at 2:58 PM, Scott Daniel - Turbovans wrote:

> Hi Robert, > > on the oil tower, I have abuot 10 good used ones. > I have not observed a problem with those ever......but the must gunk > up > eventually I suppose. If it was my project, and I had an oil tower > where the > top came off, I'd just put on a good used one. I do, if there's a > reason > to, make sure that crankcase fumes are coming out of it, and going > into the > hose that routes fumes to the air intake boot, via that hose with > the little > heater thingey one it. > > on running rich..... > right away ? or after warmed up ? > oxygen sensor doesn't even figure into running until closed loop is > acheived > in a few minutes. I do read about shorted oxygen sensors..... > but I've never found that myself. It's not hard to check the > wire ..... > it's a heavy green coax I beleive ...not hard to check that that > wire is > intact all the way to the ecu. I have seen a van or two where > someone had to > bypass that wire with an entire other one to get 02 signal to the ecu. > > also.......always 'most popular' ......is the Temp II sensor. I > don't find > them bad hardly ever, but many vanaogn owners are replacing those at > the > first excuse, seems to me, and claiming results. > > also........I'll assume your tech guy is on top of things. And, the > second I > saw your subject line.... > my mind went immediately to ground wires. I have seen many many > incorrect > waterboxer engine installations. To the point it's almost funny. > > brief story about one exampel - just picked up a very nice L model > 84 in > red and white, with .....rare to me .........front two person bench > seat, > plus driver's seat in black vynyl.......so seats 3 in front, and > there is no > walk-through. US model too, and no rust and not too dinged up ( FS > btw ) > ..... > so the guy who did the work, who says he is a mobil mechanic and > 'knows how > to work on cars'.... > he's telling me that any time the key is on, the injectors squirt > continuously. And they do too. I havn't gotten to it yet, but > right away I > see that all the ground wires that go to the left head, are bolted > together, > but not bolted to the head there. And I see the ground wire for the > igntion > isn't even connected to anything. > > and I won't mention things like brand new 4,000 dollars engiens in > vanagons > I've seen, where the oil pressure switch was screwed in just finger > tight > ...... > so..... > well, was going to say hope it's not a workmanship issue........but ! > .........it would be very nice if it was just something, or several > things, > not truly connected correctly. That's where I'd start ........a very > careful > inspection. The things I've seen done incorrectly or sloppily on > cars and > vanagons ......would fill several volumes, sad to say. > > hope you guys get 'er figured out ! > stay cool ! > scott > www.turbovans.com > ----- Original Message ----- > From: "Robert Stewart" <robertmstewart@MAC.COM> > To: <vanagon@GERRY.VANAGON.COM> > Sent: Sunday, July 19, 2009 8:24 AM > Subject: Problem, New Rebuilt Engine, Running Rich, What's Wrong? > > >> So my rebuilt engine is in, started on the first try but it's running >> rich. >> >> Any ideas? >> >> It as the original AFM, Idle control valve, stabilizer unit, and >> oxygen sensor, etc.. >> Could it be as simple as I need a new O2 Sensor? >> if so should I get the splice in kind or the whole wire? >> My mechanic tells me that it might be the wire from O2 sensor from >> all >> the years of replacement slicing.. >> http://www.van-cafe.com/home/van/smartlist_985/oxygen_sensor.html >> >> My mechanic tells me the original Breather Tower top comes off to >> easily. >> He opened and the top inner components of the unit seem to be >> deteriorating. >> Does it require replacement at $90 for the unit or can it refurbish >> it >> somehow and seal the top? >> http://www.van-cafe.com/home/van/smartlist_924/breather_system.html >> >> Thanks, >> Robert >> NY