Pressure-wise, mines fairly new and even at 240F ticks over at 20lbs and cruises at about 40-45lbs with 15/40 mineral oil in it. If it gets to 250F, the pressure starts to drop. That's what my guages read anyway, though how accurate they are I have no idea.
cheers snotty I'll check the gauge calibration it probably isn't really that low, I dont have the hoover bit.
I see no point in this? if i arrive anywhere i disconnect my van battery (partly to save me leaving anything on and flattening it, partly for a bit of security) the temperature in the engine bay is plenty cool enough and the heat coming from the underneath of the engine bay is hotter in my opinion, the hot air that is in the engine bay itself will rise out of the vents (put your hand by them after a run) the hot air under the tinware shouldn't enter the engine bay anyway if your tin and seals are in place - opening the engine bay serves no purpose other than letting the warm air from under the tin get into the engine bay, the vans were not designed to run with the door open, nor does it say in the handbook after you stop open it, if all tin is in place and all seals are present then why bother? yes for porsche engined vans etc fair comment but not for standard.
If you drive with the cab windows rolled all the way down it'll run a bit hotter than with them closed too due to the disturbed airflow. Same as happens with a beetle cabrio with the roof down or a ragtop roof bug with it open. I tested this on the way to bug jam last weekend and it made a nearly 10 degrees c difference in temps. In 30 degree outside temperatures the oil temp gauge on my westy was reading 110 degrees (it reads nearly 10 degrees high) at 57mph and 2.5bar of pressure.
Wow only just seen this thread ha! Some interesting reading, was mearly passing on information that was passed on to me by the chap that built my engine, that he saw a significant reduction in oil temp on his gauge when he was running a type 1 1600 by having the engine lid slightly open during a long run. I can see how the points here are all valid, and I don't see the need to have the lid open
"Engine cooling and cab heating tutorial" view on this site "The Samba.com"<this for a read mate if you want every tech/science detail re the cooling system on a camper , it is well informative,it will perhaps leave you in no doubt re how to maintain your bus cooling/heating system ,> run your bus, well worth a read.
