Twin Disc oil

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kneepdeep
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Twin Disc oil

Post by kneepdeep »

I am a new owner of Twelve meter, it has the Detroit Jt-450 diesels with twin disc gears.
Two questions; I cannot tell if the gears are 506 or 507 gears, the plate is so badly corroded, on both I cannot read.
Anyone else have the same power package?
Also changing all fluids , I know they take straight 40 wt, but wondering what others use. I dont want to put the same 40 wt, that I put in the engines, which is delo 100. Which is just for 2 stroke diesels.
The twin disc site is just plain frustrating. Any help is great appreciated.
John
Trojan 12 Meter Convertible
Whaler 13 50 hp Mercury.

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prowlersfish
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Re: Twin Disc oil

Post by prowlersfish »

You can use the same 40w as the engines . Or you can use a CF4 oil if you like ( only use CF2 in your engines being 2 stroke ) The Delo 100 is CF-2 Delo 200 is CF-4
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
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kneepdeep
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Re: Twin Disc oil

Post by kneepdeep »

Ok, thank you. I did'nt want to put the cf -2 oil in it, for a lot of reasons. I spent an hour with a brass brush, getting corrosion of plate and got some data. Told me oil capacity, not type. All good, thanks again.
Trojan 12 Meter Convertible
Whaler 13 50 hp Mercury.

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prowlersfish
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Re: Twin Disc oil

Post by prowlersfish »

CF-2 will be fine , but nothing wrong with CF-4 in your gears . The main reason I would not use CF-2 is its not as easy to find and there for you could pay more for it . CF-4 is all over
Boating is good for the soul
77/78 TROJAN F36 Conv.
6BTA Cummins diesels
Life is to short for a ugly boat :D

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kneepdeep
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Joined: Mon May 05, 2014 2:09 pm

Re: Twin Disc oil

Post by kneepdeep »

Yes cf-2 a pain to find, and expensive. $350 to change just the main engine oils! Ouch!
Trojan 12 Meter Convertible
Whaler 13 50 hp Mercury.

Jerry
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Re: Twin Disc oil

Post by Jerry »

My 450 hp, 671TI's are mated with the Twindisc M507A's in my 12 Meter.
You can go to any Napa and get their straight 40 weight house oil, which is made by Ashland and is CF2 rated. Here locally it runs about $75.00 per 5 gal.
I have always used the same oil in my Twindiscs as I use in the engines as per my Detroit service manual.
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