Speedmaster drives
 

What fluid and how much does a tranmission for a number III drive hold? Is it just ATF fluid?
Thanks

Use the merc high performence and 2.5 gallons of oil...

Not in the transmission!!! :eek::party-smiley-004::poopoo:

Most, if not all high performance marine transmissions use type F ATF.

Type F transmission fluid in the tranny.

OOOOOPs thay thought he said drives...:lolhit:

It all depends on how big your cooler is, and if you drained it, etc. I just filled one of mine from dead empty, and it takes about two quarts initially. Then you fire it up, and set the level while it's idling. It might take another half-quart or quart.

Type F.

CP Performance has some special Borg-Warner fluid I see, but I haven't tried it.

Just confirming. I fired mine up yesterday, and the tranny took all of the third quart. It is a Huber 1450 with a 3"x 18" cooler.

Curious, why such a large cooler? My huber paperwork for my 1200's recommended like a 2"x9" cooler. I think bam recommends the same for the cyborg trannys. Might be 2x8, or 2x10, but it was fairly small. I think you wanna get a little temperature in the trans?

WOW 2.5 gallons in the transmission you say :eekdrop:


use Type F

When I started the project, I planned to use the stbd 8-plate bellhousing coolers for the transmissions. Mid-course, those became fuel coolers. I happen to have one of the big coolers in chrome, with the small section on hand, so that became my transmission cooler and power steering cooler. I got another log for the port side. They seemed like good replacements for the plate cooler. Might be overkill, but I figured cooler was better. I've got temp and pressure senders on the trannies. If it looks like I can't get any heat in them, I'll try to find some thermostat bypasses that work in the 130 range.