It would be highly recommended to remove as much of the R-12 oil as humanly possible.
If coolant needs to be added and the owner does not know what kind is already in the engine, it should be drained and flushed before adding any new. Most coolants are appropriate, but it is not recommended to mix brands or types. Use a coolant safe for aluminum blocks or buy Yamaha brand coolant specifically for your model. The coolant should be premixed 50/50 or if it is not premixed, mix it 60% coolant and 40% water before adding.
Before changing the radiator on a 2001 Pontiac Montana the coolant must first be drained. After the drain remove the radiator mounts, fans, and hoses. Pull the radiator upwards.
A radiator is held on the mounting brackets. Before removing the radiator on a Toyota Starlet it will need its coolant drained. Remove all the mounting bolts and disconnect the hoses to pull the radiator off.
Just drained my coolant on a 1998 and had a hard time getting air out. I ended up filling degass tank almost to top idling engine for a short time . Then let engine cool and add more coolant had to repeat this procedure several times before heater would continue to blow warm air. Jeff
no
Yes, if you drained it out before starting it should be ok.
The tank should be drained before removal. The fuel must be drained into an approved container.
Before replacing the radiator hose on a 1996 Honda Civic drain the coolant system. Once drained remove any clamps holding the hose in place and pull the unit off. Replace with new hoses.
where dose r-12 go on an old 300 modle compresser and can it be changed over to r-414a or b the system has never been open before and I do have adapter to put on compresser to charge can I buy this r-414a if adaptable
Jewish
I just did mine. Look it up on google to find the correct location as you may have a diferent engine than me. Once you find it take the coolant pipe off and wait till the antifreeze has drained out then unscrew where the pipe conects to and it should be in there. I found the correct location by following the water pipe. Please make sure the coolant is cold before you do this also have a gasket, gasket cement and the new thermostat before you do this.
If the Red Coolant meets the specifications required by you vehicle manufacture you can perform a coolant flush on you system before replacing with the new coolant type.