We are now in Honduras, after a few days in which
I made a coolant pressure testing device with a bike pump and some hose:
Then patched a leaking tank with a lot of epoxy and plastic from a water jug:
Then drove to San Salvador on this patch, which started leaking again as soon as I parked at the auto parts store. Turns out that a tank that has very hot coolant at 15 PSI is hard to patch well, and epoxy doesn’t like to be heated and cooled over and over again.
Anyway, for some reason this place in San Salvador stocked the part (which is a specific reservoir for an 86-91 Vanagon, which was never imported anywhere in the Americas other than the US and Canada). Don’t ask me why they had it, but I was happy they did.
[google-map-v3 width=”0″ height=”0″ zoom=”12″ maptype=”roadmap” mapalign=”center” directionhint=”false” language=”default” poweredby=”false” maptypecontrol=”true” pancontrol=”true” zoomcontrol=”true” scalecontrol=”true” streetviewcontrol=”true” scrollwheelcontrol=”false” draggable=”true” tiltfourtyfive=”false” addmarkermashupbubble=”false” addmarkermashupbubble=”false” bubbleautopan=”true” showbike=”false” showtraffic=”false” showpanoramio=”false”]
[google-map-v3 width=”350″ height=”350″ zoom=”12″ maptype=”roadmap” mapalign=”center” directionhint=”false” language=”default” poweredby=”false” maptypecontrol=”true” pancontrol=”true” zoomcontrol=”true” scalecontrol=”true” streetviewcontrol=”true” scrollwheelcontrol=”false” draggable=”true” tiltfourtyfive=”false” addmarkermashupbubble=”false” addmarkermashupbubble=”false” addmarkerlist=”13.71418, -89.20099{}van.png” bubbleautopan=”true” showbike=”false” showtraffic=”false” showpanoramio=”false”]
Steph & Juan,
In my copious amount of free time, I loved reading a bit of your blog last night! I am very envious of your courageous and adventurous endeavor… but then at the same time I’m reading this from the comfort of my bed.
Juan, your engineering talent is amazing! I was wondering how did you actually measure pressure ? Was it in Bar or in PSI ? Did you have to etch the gradation on the pump stem by hand with a knife ? Does it have a self-calibration system for when you change altitude ? Ahhh… so many questions… ;-)
Please keep us posted on your progress. I will definitely look forward to check back for more Steph & Juan adventures!
Big hugs from the far north-west.
Eric & co.
Hey Eric!
I didn’t need to measure the pressure, just to apply pressure to the system in order to see exactly where the leak was from. So the cheap pump and hose were enough. I did try to get a pump with manometer, but good luck with that in a little town in El Salvador :)
The coolant is under pressure from the water pump, usually around 12PSI. Should be the same pressure regardless of altitude, as it is a closed system…