Models 220 through 60000 will use 30W. In diesel engines, gear clatter can be very prominent, so selecting a good dampening coupling is very important. The next most common cause is incorrect shift linkage. We talk about damper plates and our cooler kits on our various Tech Tips. See for example Tech Tip 104:. As a rule, gear clatter is the result of an unfavorable interaction of individual components, such as engine, couplings, gears, propeller shaft, and propeller.
As a rule, idle gear clatter will not damage the gears, as almost no torque is transmitted at low speeds or when idling. Rather than sending your Hurth out for rebuilding locally, you should consider one of these remanufactured units. Such influences are beyond the control and responsibility of transmission manufacturers. Changes will take effect once you reload the page. We may request cookies to be set on your device.
Noise may be more apparent at idle, since the engine firing impulses are further apart. We are ready to help. You get a quality marine transmission with a firm, upfront fixed price, instant shipping and a free three month warranty. These cookies are strictly necessary to provide you with services available through our website and to use some of its features. We stock overhaul parts kits for all Hurth marine gears and have them ready to ship anywhere in the world.
Prices listed are for standard options only. Additionally, new Hurths are also generally only few hundred dollars more than a remanufactured one. Complying with safety standards, reliability, environmental compatibility, economic operation and customer comfort is first priority. Have someone inspect the shift lever on the transmission while someone else shifts the transmission this can be done with the engine off. This is a good deal for a someone on a long cruise or for someone who is going to keep their boat. When an engine idles or is run at low rpms, it creates more vibration for the transmission, as the firing impulses are farther apart.
A compression check is a must before putting any blame on the transmission. This type of gear clatter increases with the specific output of the engine, the reduction of moveable engine masses and a diminished idle speed. Gear clatter occurs when the tooth flanks in the transmission separate and hit each other again in actual operation. These lightweight mechanical marine reverse gears are very forgiving. All components of the drive unit should be carefully aligned during installation.
For Hurth marine transmissions, we have an innovative cooler kit that bolts on to the outside of the case and raw water runs through it, cooling the lube oil in the transmission. Hurth overhaul parts kits For someone who is handy and on a budget, you should consider one of our Hurth gear rebuild kits. Know-how, high flexibility and creativity create the prerequisite for finding the appropriate technical solution for every application. What filter is used on it? Call an agent to order. This plate absorbs the engine's firing impulses, is the last link between the engine and transmission, and connects directly to the transmission's input splines. Transmissions last the longest at steady cruising speeds and with no high-rpm shifting.
Leaks usually come from a failing transmission oil cooler, so it may be a good idea to replace that at the same time. Finally, we try have all Hurth models in all ratios in stock and ready to ship. Measures against gear clatter at idle: More often than not, a suitable dampening coupling is the solution to idle gear clatter, as the transmission cannot influence this phenomenon. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer. This is very bad for the transmission and the oil should be flushed immediately. After all, we've been doing this for nearly 100 years. This is caused by irregularities of torque and of rotation.
If there is no tag present, the best way to find out what transmission you have is to take digital pictures, upload them to an image hosting service such as Imgur or PhotoBucket, and links to the images. What are the service intervals? If this is still present, the model number, ratio, and other information will be listed on it. The problem is these tags can become rusted and hard to read, or may be missing entirely. If compression is not within 10% in all cylinders, uneven firing impulses may cause the transmission to make backlash noise. First thing to do is check the transmission's oil level and insure it is topped off. We will pick up your transmission anywhere in North America and quote you on the work. Compare this with the inevitable delays, open ended pricing, and warranty concerns when you send your gear out for rebuilding locally.
The possibility of tooth flanks to separate is due to the backlash required for compensating tolerances and thermal expansion to ensure the operational safety of the transmission. Please call or e-mail us for prices on accessories and availability. But when your Hurth transmission begins to slip in forward, that's usually a sign that the gear will need replacement. Look under the dimensions table of your model. We'll do it right the first time. To help you do it right, we also include a free Hurth Workshop Manual, Tech Tips on Hurth maintenance, and a container of our Foley Hurth Hytork Fluid. If you use your boat heavily, or the engine idles a lot, you may want to change oil more often.