Had an intermittent overheating problem on my 1991 Highline. Some trips no trouble at all, but on other trips it overheated especially when traveling slowly in "town" conditions. The coolant was bubbling out of the header tank cap so the problem could have been an airlock problem and/or pressure loss
After letting it cool and then refilled, it got me home without further overheating but I can't risk a major breakdown because I live in the bush over 70 km from town so upgrading components became essential. Today I changed the thermostat (pretty poor condition) and the header tank cap (was not holding pressure).
I also purchased a new fan viscous coupling but have not yet fitted the new one. On previous vehicles, removing the cowl and even the radiator was no big deal but on this one, the oil cooler lines must be removed as well as all hoses and the one-piece cowl.
The question is: has anyone successfully changed the fan coupling without removing the radiator and cowl? If so, what is the best sequence please?
After letting it cool and then refilled, it got me home without further overheating but I can't risk a major breakdown because I live in the bush over 70 km from town so upgrading components became essential. Today I changed the thermostat (pretty poor condition) and the header tank cap (was not holding pressure).
I also purchased a new fan viscous coupling but have not yet fitted the new one. On previous vehicles, removing the cowl and even the radiator was no big deal but on this one, the oil cooler lines must be removed as well as all hoses and the one-piece cowl.
The question is: has anyone successfully changed the fan coupling without removing the radiator and cowl? If so, what is the best sequence please?