If it runs true, find a prop shop featuring Hale computer based balancing equipment and they will dial them in for you. If the carrier comes out easily, the prop shaft can be removed, straightened and re-installed. A dinged, bent or chipped propeller won’t work as it used to and can even affect the overall engine performance. A missing or bent prop throws the weight of the prop out of balance. A floating four-by-four can knock a blade out of pitch without visible signs. Vibrations from under the vehicle It is the damage that can be done to the lower unit that you want to think about. Usually, a drive shaft does not fail instantaneously, and deterioration happens over time. A vehicle's drive shaft--the rotating object located between the differentials and gear box--helps it switch from idle to drive; without it, a vehicle would never move. A bad or failing driveshaft can make it difficult to control your vehicle. The lower unit need not be removed from the upper unit. Read on to learn what signs and symptoms you should be on the lookout for. Shaft deflection, runout, vibration, and axial motion Chapter D4 Page 7 Contact Kalsi Engineering Search this handbook Figure 6 Shaft deflection due to side load This schematic illustrates how an overhung side load produces lateral shaft deflection through flexure of the shaft. The bent prop, or propeller that is missing a blade, now this is a problem. Place a dial indicator at the taper and rotate the shaft, looking for no more than two-thousandths of wobble. If the shaft cannot be straightened, a new shaft is approx $300. Remove the prop, or props and use a dial indicator to check the shaft run-out. In the past, the author performed a test known as the running soft foot test when vibration tests indicated an alignment problem or a possible resonance due to soft foot. Prop shaft bent Welcome to TheMalibuCrew! If your car exhibits any of these conditions, a trip to your mechanic is in order; they have the know-how to diagnose and fix your driveshaft problems. Check the shaft too. A pitted prop isn’t that big of a deal to worry about. Machine Service, Inc. 1000 Ashwaubenon Street Green Bay, WI 54304 Toll Free: 800-677-8711 Phone: 920-339-3000 Fax: 920-339-3001 First, don’t overlook the prop. Phase shift will be 180 degrees when comparing top to bottom of bearing and 180 degrees from one side of bearing to the other. A prop that is bent, pitted, or has missing pieces can still run. “If the tip of a propeller blade is bent over, there is a good chance the shaft is bent,” Fay says. If it's apparent than either the prop, or props are out of balance, or you have a bent prop shaft. A bent shaft produces high axial vibration. Even if you examine yours on … Because a $2,159 repair bill for a slightly bent prop shaft is far too high. Accordingly, if drive shaft … https://www.dailycarblog.com/2019/12/common-propshaft-failure-symptoms As a guest, you are welcome to poke around and view the majority of the content that we have to offer, but in order to post, search, contact members, and get full use out of the website you will need to Register for an Account .