which way
- Thread starter rickmass
- Start date
David J
Well-known member
Dunno bout newer stuff but a 33-34 crank only turns the motor clockwise and you kinda need to be looking at the front if you are cranking . Counterclockwise of course if you are behind it 
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Ok this a dumb guestion,which way does the motor turn on a flat head motor,I know there will be some guy,s running out to look at there,s Rickmass
Ronnie
Well-known member
Standing in front of the car facing the rad the engine rotates clockwise.I only know of one American engine that doesn't and that is a Corvair flat motor even tho the eng is in the back and there is no rad..Hope this helps.All v8 v6 in lines are the same.Any others will be soon be identified by fellow barners.
R
R
Willit Stop
Well-known member
If you're in doubt,turn ignition off,open the hood,shift the transmission into high gear and roll the front wheel forwards.Watch the fan (or the crank pulley),it will turn in the same direction as the engine.Or use the starter.
Mart
Well-known member
With only a very few exceptions, virtually all motor car engines turn clockwise when viewed from the front. The front being the end that doesn't have the flywheel on it. In a transverse application the front could be on the left or right, but when looking at the engine from the front it will turn clockwise.
Mart.
Mart.
Hi all-
I'm new here, but this concept bears some thought more than you think. I've seen many guys find ads for a "container full of diesel engines cheap". Most always they are detroit diesels, and almost always they are former military salvage units from tanks or boats that use a LH and a RH engine in each vehicle. Lots of this stuff gets decommisioned, and put up for sale, and guys end up buying containers full of LH engines trying to pawn them off as RH (highway) applications. As the saying goes, if something sounds too good to be true, it usually is.
I'm new here, but this concept bears some thought more than you think. I've seen many guys find ads for a "container full of diesel engines cheap". Most always they are detroit diesels, and almost always they are former military salvage units from tanks or boats that use a LH and a RH engine in each vehicle. Lots of this stuff gets decommisioned, and put up for sale, and guys end up buying containers full of LH engines trying to pawn them off as RH (highway) applications. As the saying goes, if something sounds too good to be true, it usually is.
FWI, there are many left hand rotation engines.
Detroits can be built up in an incredible number of options (flywheel front or back, left or right rotation) I believe. (I am now out of my depth)
I have worked on a Chrysler 318 left hand rotation engine, in a Clarke forklift.
There are many matched sets of marine engines (a pair, 1 left rotation, 1 right hand rotation)
G.M built Stag hounds (WWII armoured cars) had twin engines, but I don't know if they were opposites or the same.
Left hand rotation engines usually have the big end drillings in different planes (so a different crank is required for each) That's not to mention camshafts etc.
Detroits can be built up in an incredible number of options (flywheel front or back, left or right rotation) I believe. (I am now out of my depth)
I have worked on a Chrysler 318 left hand rotation engine, in a Clarke forklift.
There are many matched sets of marine engines (a pair, 1 left rotation, 1 right hand rotation)
G.M built Stag hounds (WWII armoured cars) had twin engines, but I don't know if they were opposites or the same.
Left hand rotation engines usually have the big end drillings in different planes (so a different crank is required for each) That's not to mention camshafts etc.