Well you can certainly change it on the roadside. I have even changed a 12 litre diesel engine on the road side in a big rig Leyland 18 wheeler somewhere west of Tabriz & a twin plate clutch in a Scammell Crusader stuck in the desert on route 5 south of the Kuwait border.
Biggest challenge was cold with first one and heat & bloody scorpions with the second!
You are limited by tools you might have overlooked and need or even sudden parts that need changing immediately , such as the heater return elbow that unexpectedly rips up, or lack of the metal gasket sealing the coolant down pipe from the water pump to lower elbow.
I would suggest bunging in a can of BG radiator sealant as an easy remedy to get home.
Being made from an organic Brazilian pepper it can be easy flushed out with a plain water flush when get home with no ill effect .
It worked recently for a drop in customer with a BMW and no money to fix it.
(Whats new these days in the USA ??? )
I gave him a bottle the BG as goodwill and it sealed itself within a few minutes or running at idle.
Worth a try using the KISS method.
All the best
Dennis
Views of destination Doha in the Gulf
Here she is the Astran Leyland
The Astran Scammell Crusader
