Ferrari Forums banner
1 - 5 of 5 Posts
G

·
Discussion Starter · #1 ·
Just bought a 78 512 BB, I tho

Just bought a 78 512 BB, I thought my 328 was cool but wow what a machine, the flat 12 with carbs sounds incredible along with instant torque from the Webers, Its also so cool to be able to open the deck lids and work on the engine without fear of scratching a fender or have access issues.

I need to change all the fluids as the car has been sitting for awhile.

Concerning the cooling system, any tricks or tips for a flush and bleed? Reccomended Anti Freeze brand and dilution?

Trans fluid, any tips?

Thanks in advance
 
G

·
Discussion Starter · #2 ·
Hi Jeff,

Welcome to the wor


Hi Jeff,

Welcome to the world of BB ownership...As you've just found out, they're pretty incredible cars to own and drive. I've had mine for a long, long time and here are some of the tips, hints, etc. for the basic maintenances on the car...

Gearox/transfer case oil change:

There are three drain plugs. One 19mm plug on the bottom of the transfer case...and two 42mm plugs on the transale case...After the car is completely warmed up...remove all three plugs, and let the oil drain for a while. Some of the plugs may have debris magnets...Now is a good time to clean them. Replace the seal ring washers (I use alu ones sourced from Wurth)and re-install all the plugs. On the rear motor mount cross brace, across the back of the transaxle, is the gearbox oil "checking" plug. Remove that..On the top of the transaxle transfer case is the fill plug...Fill with gear oil (approx 8 qts) until oil comes out of the "checking" plug. Using this method, both the gearbox and the transfer case will be filled to the correct level. As for oil choices, I've had incredible success using Royal Purple MaxLube 75-90.

Flushing and bleeding the BB is pretty straight forward...just remember to have the heater valves open. It's up to you if you want to use a flushing agent...if so, the best way to drain the BB radiator is to remove the fan temperature switch, as the lower hoses are near impossible to remove without removing the bellpan. Just like the 308/328, the overflow cap is junk...so beware. As to the proper level in the overflow tank..I just fill mine up, and let it burp out the excess. Eventually, the tank will seek its own natural level (2-4 cm. below the top)...and the car will stop weeping from the overflow. As to coolant type...I only use "phosphate-free" coolants...such as Honda Type II, with a bottle of water wetter. I run only 30% antifreeze, by volume.

I've got to run...

Regards,
David
 
G

·
Discussion Starter · #3 ·
Thanks for the info David

H


Thanks for the info David

How about oil changes? I assume you check the sump while hot and running like a 911?
 
G

·
Discussion Starter · #4 ·
Jeff,

Not sure on that poin


Jeff,

Not sure on that point...as my 365bb is a wet sump car. I would presume yes, but would wait till some other 512BB owners chime in on this question...

David
 
G

·
Discussion Starter · #5 ·
On a dry sump BBi, one checks

On a dry sump BBi, one checks the oil right after you shut the engine down, while hot........do this within 30 seconds. If you wait too long, some oil will drain into the block, giving you a false negative reading. This is in the manual. Just out of curiosity, I checked the oil level in the morning (engine cold)........level was below the minimum, but at normal when using the above method.

Has the radiator ever been re-cored? If not, then I would remove it, and have it tested properly.........these ARE over 20 years old!!!! I did this to mine, and found small pin holes in it........I just had it re-cored.
 
1 - 5 of 5 Posts
Top