Are Chevy engines right or left hand rotatin?

[ryoken]

standard rotation is left hand....

When you play with reverse rotation motors daily, it's a big part of your life...

Actually reverse rotation motors haven't been produced in quite a few years now, only old stuff... man, the cams on those run bucks! last time I priced it, it was pushing $700...

 

[enginenine]

I think you can still get reverse rotation motors in some boats. Mainly ski boats to counteract prop rotation. Jasper cost me a whole weekend a couple of years back when they sent me the wrong rotation on a 454 that I was replacing in a Ski Nautique.

 

[ryan22re]

All honda engines (to my knowledge) spin backwards. Car engines that is. And in relation to what we are used to.

 

[4X4HIGH]

All engines except some boats with twin engines are left hand rotation when viewed from the flywheel. Remember that the engine is always viewed as sitting in the drivers seat.

A quick search found this for you. http://www.propowermarine.com/faq-rotate.htm

 

[ryoken]

I think you can still get reverse rotation motors in some boats. Mainly ski boats to counteract prop rotation. Jasper cost me a whole weekend a couple of years back when they sent me the wrong rotation on a 454 that I was replacing in a Ski Nautique.

What I meant by that was, no boat manufacturers are putting reverse rotations in any more that I know of. They do it in the tranny's these days...

But yeah, I still come across a counter rotator that I'll need a long block on, or need to rebuild... Becoming rarer every year...

 

[Blue85]

I read about a snowmobile that could spin either way to allow reverse. Somehow they used spark timing to slow the engine, then reverse the direction and run the wrong other way.






(BTW, Of course I know the engine in my K5 is always spinning the same direction...)

 

[DEMON44]

I read about a snowmobile that could spin either way to allow reverse. Somehow they used spark timing to slow the engine, then reverse the direction and run the wrong other way.

(BTW, Of course I know the engine in my K5 is always spinning the same direction...)

Well ya never know so I had to ask..........


I know 6-71 detroits can be assembled in 4 configurations. 2 LH and 2 RH. being mostly for marine like ryokon said. I've seen a twin engine boat with 1 LH 1 RH detroit to counter torque.

 

[Blue85]

Here you go:

Many of us realized years ago that a two-stroke engine could run backwards. Trying to start old sleds would occasionally result in a backfire, then as you pressed the throttle you realized the engine was running in reverse. Some clever Rotax engineers figured out a way to intentionally make this happen, and control it. The engine RPM is slowed way down, and the ignition timing changed so the engine actually fires in a reverse rotation. Ski-Doo even patented the process. The Rotax Electronic Reverse (RER) was first featured on the 1998 Tundra R and Touring SLE models, small fan cooled models that provided valuable field experience.

 

[kp texan]

What I meant by that was, no boat manufacturers are putting reverse rotations in any more that I know of. They do it in the tranny's these days...

But yeah, I still come across a counter rotator that I'll need a long block on, or need to rebuild... Becoming rarer every year...

Both MAN-B&W and Sulzer low speed 2-stroke diesels are direct reversing engines but those are only on large boats (meaning ships). Since those engines run as a direct drive to the shaft, the cam shaft is pneumatically switched over and the engine runs in reverse to go astern.

-Wes

 

[ryoken]

Both MAN-B&W and Sulzer low speed 2-stroke diesels are direct reversing engines but those are only on large boats (meaning ships). Since those engines run as a direct drive to the shaft, the cam shaft is pneumatically switched over and the engine runs in reverse to go astern.

-Wes

Cool... Learn something new everyday.... 100' is about as big as I see...

Yeah, I only play with gasser counter rotators, all cheby's... No timing chain, just a 2 gear geardrive, and obviously a different grind to the bumpstick...

 

[DEMON44]

I've also seen an old Detroit in a truck backfire and run backwards. was the most bizzare thing. we drove it forwards into the shop in reverse. it was a sick motor to start with though........... the backfire stalled the blower, and bam backwards she goes.