It is time for a little update on the truck.
We had planned to mount solar laminate panels from Unisolar, but I have problems to get them here in Germany for an acceptable price. So I dropped this idea. I am now planning to install
large glas laminate modules till next year. The space on top of the cabin is just large enough for 6 of this modules (6 x 280 W = 1680 W). 1680 W seems to be a high amount, but as we want to use our truck in northern areas, this gives some reserves.
As regulator I have already bought the
Morningstar TS-MPPT-60, which will the convert the voltage of 2 modules in series down to 28 V. This gives the advantage that the MPP voltage will always be higher than the charging voltage for optimum use of the solar power.
The engine got also an update with an additional oil cooler for use in hot climate. The oil cooler is integrated into the air cooling of the engine like the transmission oil cooler. A manually switched electric oil pump takes the hot oil from the oil pan, pumps it through the cooler and then back into the crank shaft housing. It is exepected that this will drop the oil temperature by about 20° C.
Here are some images showing the modification:
During this action we also fixed some oil leaks at the cylinders and optimized the valve clearance. The engine is now running smoother and seems to have a little bit more power.
Currently we are working on a problem with the clutch, which isn't opening fully because some air loss in the actuator. This caused the abort of our last vacation through the
Baltic States. Without the the torque converter it would have been impossible to drive back the 2000 km. So I could limit the gear changes to a minimum, and use only gears 4,5,6, and leave the gear 4 active during stops with running engine. Only overnight I took the gear out, but had serious problems to get it back in the next day.
I also had to replace 7 of the Effecta batteries. It seems to be that they were from an older batch, that was standing around for a longer time before installation.
Some time in the future we will probably add a further window at the back or the right side in the bed room for better airflow. For the last we must rework the layout of the bed room.