That's the problem. I bought my van with 100,200 kilometers on the odometer, and it has a high fuel consumption.
from 8.5 liters to 2950 RPM, and 13.5 liters over 3000 RPM, with a top speed.
Up to 150 km/h, 165 km/h downhill.
So far, so good.
A chip made a big difference. 7.3 to 2950 RPM, 10.5 above that at full throttle, 11.5 liters.
and he was driving at 175 km/h according to the speedometer.
Then it was time for the 120,000 km service at a generally good workshop. And when I picked up the van and drove away, I received a phone call telling me to come back, as there was an oil leak where the van had been parked.
Apparently, it was the oil filter - they put in a new one. And the bus ran terribly.
"Knocking, rattling, high fuel consumption, etc. After my drive home (850 km), there was again an oil leak."
So, I started looking into the problem with my bus. It turned out to be the oil return seal on the turbocharger. Then, after 4500 km, the noise got louder and louder, and plastic parts even broke off. The comment from the workshop was, "It's still running."
Okay, here's the translation:
Thank you.
Then the bill came to around 2800 German Marks.
Meanwhile, I noticed that the stud bolt on the ESP's idler pulley was loose.
besser gesagt, heraus gerissen und mit Loktide wieder eingeklebt wurde. It was among...
There are still traces of adhesive and thread remnants on the bolt.
I'm going back there, with one, or maybe two, bolts that hold it in place.
"Then we will install a new cylinder head for you, and that will cost..."
(I didn't hear any more). Let's go to a lawyer - "there's nothing we can do about it."
"Statement against statement."
I then completely disassembled my bus, taking everything out and dismantling it.
I even removed the piston rings, and the turbocharger had to be taken apart as well.
To my surprise, it was a replacement engine. According to the previous owner, it was installed by VW after an engine failure at 97,000 km. The stickers were still perfectly clean. I even managed to get the pistons and connecting rods with bearings to the same weight, a difference of 125g.
Okay, I bought new screws, seals, etc., and according to the measurements in the repair manual, everything is fine.
Diesel pump.
I took it to Bosch for cleaning, inspection for wear and tear, and adjustment.
That was my next plunge into the bucket of... well, up to my shoulders.
465 euros, and it was leaking.
While it was installed, I watched as the mechanic tried to adjust the flywheel.
to be removed with a hammer, in order to install a new sealing ring.
"Please use a wrench!"
"Have we ever done this before?!"
After further arguing, the aforementioned mechanic left, and he had a suitable wrench in his hand. It took him half an hour, though.
"Okay, you can drive now."
Okay Leo, let's get on the highway, and after 850 kilometers...
... it's dripping. Ultimately, there's too much play in the bearing.
And how else was I supposed to do it? I bought something from a store, but those cheap things didn't work.
Then an idea came to me: have the Oelbroncelager custom-made.
The tires weren't perfect, but they lasted at least 45,000 km.
Unfortunately, the dimensions were not as they should have been, and this was due to a problem with the pump.
verbogene Welle sich verschoben, war eine erneute reperatur fällig. Neue Welle, neue Lager mit Übermaß und dann selber aufgerieben bis die Welle gerade so paßt und hinein. EndSure, here is the translation of the text from German to English:
"lich."
But to my surprise, the performance was still terrible and impossible to judge based on...
due to the extremely high fuel consumption of over 14 liters at a maximum speed of 150, and so on.
...and so on, to determine further details. Now, I have conducted test drives with two other buses.
And in terms of performance curves, they are actually identical in terms of the rate of increase and decrease, only mine takes longer.
On the dynamometer, the power output dropped rapidly to 89 kW. The mass airflow sensor was replaced, etc. A boost pressure gauge and voltmeter were installed.
Yesterday, I installed the original chips, and the engine is running very smoothly and quietly. The turbo is making a faint whistling sound at 0.5 bar of boost at 1700 RPM, and from 2000 RPM, the power comes on gradually and steadily.
Unfortunately, installing a different control unit was unsuccessful because it is locked.
I now also have an Excel table with tuning chips and original chips.
Unfortunately, I can't afford any new performance parts for my car right now, and the catalytic converter is also gone. It used to give me some exciting experiences, like driving 80 km/h on the highway and 30 km uphill.
And as usual, I'm completely overwhelmed by all these numbers.
Can anyone help me? Thank you. From Leo, who longs for the old days of mechanical devices.
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