DD 8v71 rotation?

FolkBus · October 03, 2015, 09:30:49 AM

Hi all,

I read on this board about DD LH and RH engine rotation. I have a MC5A. As I look into the engine compartment and look at the engine rcrank pulley (motor running)...is this the correct orientation to ID the rotation?

Thank you

--Mike

luvrbus · October 03, 2015, 09:34:30 AM

No rotation is looking from the rear

HB of CJ · October 03, 2015, 11:22:44 AM

Looking at the front of the engine? As compared to the flywheel end?

eagle19952 · October 03, 2015, 11:45:29 AM

make believe you are in the drivers seat and the motor is pointing the right way

chessie4905 · October 03, 2015, 12:22:18 PM

Only angle drive GM,Flxibles and probably some others used Left Hand engines. In buses, that is.

FolkBus · October 03, 2015, 01:51:06 PM

OK

Thanks

--Mike

HB of CJ · October 04, 2015, 12:05:50 PM

Thank you. So you look at the flywheel end and if the engine runs in a clockwise direction, then it would be a right hand turning engine. One only looks at the rear, not the front.

FolkBus · October 04, 2015, 12:09:43 PM

Flywheel end.

Thank you

HB of CJ · October 04, 2015, 12:27:56 PM

FolkBus; My first Crown Supercoach ride was way back in 1968. Bus number 30, a 1956 Crown with a 220 Hall Scott of unknown size. Spicer 5 speed manual. Would go about 56 at 2100 rpm. Starting gear was first and a little bit short. A whopping 3 miles per gallon. 10x20 tube tires on split rims. Long ago and far away. Kern High School District in central CA.

TomC · October 04, 2015, 08:41:06 PM

Right hand rotation is called that since the first cars had crank only starting. Since more people are right handed, the engines rotate clockwise when facing it making hand cranking easy. Good Luck, TomC

eagle19952 · October 04, 2015, 08:53:41 PM

Quote from: TomC on October 04, 2015, 08:41:06 PM
Right hand rotation is called that since the first cars had crank only starting. Since more people are right handed, the engines rotate clockwise when facing it making hand cranking easy. Good Luck, TomC

huh ?

chessie4905 · October 05, 2015, 04:12:59 AM

That's also why the handles on coffee cups are on the right hand side.

Nel · October 05, 2015, 04:20:12 AM

I always carry a left handed hammer in my tool box, you never know.

scanzel · October 05, 2015, 07:17:32 AM

That is like the guy shingling house siding everyone now and then he would throw a nail away. The other guy asked him why he was doing that. He stated that they were pointing the wrong way and they were for the other side of the house.

Oonrahnjay · October 05, 2015, 10:07:33 AM

OK, now. Y'all are gettin silly!