Hi All. When I put the engine in forward or reverse, get a squealing sound and then engine dies. Came on all of a sudden yesterday while leaving harbor. Engine runs good in neutral. Prop and shaft are clear underwater and turn by hand in neutral. Small Hurth transmission connected to 11 hp Universal 5411 diesel. ATF is at correct level. Anyone know what could be causing this? Is there a clutch assembly in this mechanically shifted transmission. Thanks for any help or web resources.... Joe.
Hurth transmission problem!
- Thread starter Joe Stradley23783
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All transmissions have an 'inter phase'.
OK,OK,,,that's interface.
Most, if not all marine gearboxes have NO clutch. My 3GM30F has part of a clutch disk but it's bolted solid to the flywheel. It functions to dampen the engagement shock loads. But clutch? Nope. Not needed on a boat engine. As far as what's wrong with the Hurth, I don't have a clue.*o
OK,OK,,,that's interface.
Most, if not all marine gearboxes have NO clutch. My 3GM30F has part of a clutch disk but it's bolted solid to the flywheel. It functions to dampen the engagement shock loads. But clutch? Nope. Not needed on a boat engine. As far as what's wrong with the Hurth, I don't have a clue.*oclutch
any transmission that has the ability to move from neutral to forward to reverse has a clutch. that is pretty much the definition of clutch. Now it may not look at all like an automotive clutch but if it can do the above, it has a clutch.
any transmission that has the ability to move from neutral to forward to reverse has a clutch. that is pretty much the definition of clutch. Now it may not look at all like an automotive clutch but if it can do the above, it has a clutch.
Ah, Terry, that's not true.
An automatic transmission shifts with no clutch and it moves between gears. A torque converter can be installed on a stick shift trany to eliminate the clutch. Those were called clutchflites back in the sixties. A standard trany can be driven around the earth by never disengaging the clutch. Just match up engine revs until the shifter moves. I used to do it all the time when I was a kid after my big block blew its' clutch. A clutch allows the operator to keep the engine in gear while stopped, in addition to facilitating gear changes. But the last reason isn't needed on a constamesh transmission. (most motorcycles and Lenco race boxes) Let's see, what else,,,,?
An automatic transmission shifts with no clutch and it moves between gears. A torque converter can be installed on a stick shift trany to eliminate the clutch. Those were called clutchflites back in the sixties. A standard trany can be driven around the earth by never disengaging the clutch. Just match up engine revs until the shifter moves. I used to do it all the time when I was a kid after my big block blew its' clutch. A clutch allows the operator to keep the engine in gear while stopped, in addition to facilitating gear changes. But the last reason isn't needed on a constamesh transmission. (most motorcycles and Lenco race boxes) Let's see, what else,,,,?
through Fred's obscuring fog and back
to manually shifted transmissions. If one has the ability to shift speeds and/or direction with the engine running the transmission includes a clutching function or if you will, a clutch. The GM Yanmar engines have a sliding cone with forward and aft cone faces which act as a clutch when pushed by the shifter into the forward or reverse driven gears. Link below is to an old photo forum article I posted long ago to make penance for a mistaken earlier statement of mine that it made no difference whether the gm transmission was placed in forward or reverse while sailing. None of this really useful I'm afraid to Joe's original post though to be sure his Hurth transmisison does include the clutching function in one way or another.
to manually shifted transmissions. If one has the ability to shift speeds and/or direction with the engine running the transmission includes a clutching function or if you will, a clutch. The GM Yanmar engines have a sliding cone with forward and aft cone faces which act as a clutch when pushed by the shifter into the forward or reverse driven gears. Link below is to an old photo forum article I posted long ago to make penance for a mistaken earlier statement of mine that it made no difference whether the gm transmission was placed in forward or reverse while sailing. None of this really useful I'm afraid to Joe's original post though to be sure his Hurth transmisison does include the clutching function in one way or another.
Well, I tried to fire everybody up, and have
failed. Yep, the cone is referred to as a 'clutch' by Yanmar among other names. And an automotive automatic transmission does have clutch packs to operate the servos. But I grew up learning to do burn-outs by 'side-stepping' the clutch. Besides Saaks (sp) motorcycles invented the cone to do away with the clutch. Maybe that's why the terminology stuck.
failed. Yep, the cone is referred to as a 'clutch' by Yanmar among other names. And an automotive automatic transmission does have clutch packs to operate the servos. But I grew up learning to do burn-outs by 'side-stepping' the clutch. Besides Saaks (sp) motorcycles invented the cone to do away with the clutch. Maybe that's why the terminology stuck.
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