Replacing the Compressor
 

Replacing the Compressor

Started by Dave5Cs, April 25, 2013, 09:18:37 PM

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Dave5Cs

Do you have to drain the whole system, oil and antifreeze when pulling the compressor on my MCI ,6V-71, or just below the compressor. The book sounds like all or just the compressor?

Also does anyone know what 740 Tranny takes in Gallons for a fluid change. I believe it is just ATF in mine because it is Red.

Dave5Cs
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

TomC

You just have to drain enough coolant so the coolant is below the level of the compressor. You do not have to drain the oil-but most likely you'll get some coolant in the oil-hence you should change the oil afterwards. Good Luck, TomC
Tom & Donna Christman. 1985 Kenworth 40ft Super C with garage. '77 AMGeneral 10240B; 8V-71TATAIC V730.

luvrbus

Dave the 740 takes 7.5 gals with the standard 5 inch pan + the filter and cooler most will be around 10 gals when done

good luck
Life is short drink the good wine first

Dave5Cs

Thanks Tom and Clifford the book was not clear on either.

Dave5Cs from Galaxy S III
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
2001 Jeep Cherokee Sport 60th Anniversary edition.
1998 Jeep TJ ,(Gone)
Somewhere in the USA fulltiming.

luvrbus

FWIW my NAPA store here as probably yours can order the pan gasket and the internal filter some 740's have a washable internal filter


good luck
Life is short drink the good wine first