Asked by: Preben Stock
Asked in category: automotive, auto parts
Last Updated: 18th May 2024
Why does my drive belt keep breaking?
Problems with serpentine belts are usually caused by a defective tensioner or misalignment or a pulley. Defective tensioner: This is a condition that can cause excessive cracking, other than in extreme old age.
You might also ask: Why does my mower's drive belt keep slipping?
The most common reason for deck belt breaking is an idler or mandrel pullingey that has not been lined up correctly, or the bearings failing and making the pulley wobble. Check the deck pullies to ensure they are turning freely and not wobbling.
The next question is: How often do you need to replace your drive belt? Normal conditions call for the belt to be replaced every 4-6 years. It may be necessary to replace the belt more often for those who live in regions where temperatures and humidity can fluctuate greatly throughout the year.
How many miles should a belt drive for?
100,000 miles
How can you tell if your belt is worn?
Watch out for these symptoms if your serpentine belt seems to be failing:
- A squealing sound coming from the front of your vehicle. The serpentine belt could be the cause of a squealing sound coming from your vehicle's front.
- AC and power steering not working.
- Engine overheating.
- Wear the belt and cracks
17 Related Question Answers Found
Are belts made with Kevlar better?
Kevlar belts are built to be stronger and last longer than standard belts. Kevlar belts have a higher tensile strength rating than standard (polyester-corded) V-belts. This means that Kevlar belts will cut down on the stretch when put in tough situations, such as the one above.
What is the difference between a deck belt and a drive belt?
deck belts usually last about 1/2 the time a drive belt does they also get more debris around the pulleys and take much more punishment than drive belts.
How do you adjust the belt on a MTD riding lawn mower?
- Step 1: Position the mower to change the lawn mower belt.
- Step 2: Check the engine temperature before replacing the lawn mower belt.
- Step 3: Detach the spark plug wire.
- Step 4: Remove the cutting deck and battery.
- Step 5: Loosen the transaxle pulley.
- Step 6: Relieve tension on the upper drive belt.
What does a deck belt do?
A mower deck belt is a rubber belt on the inside of a lawnmower that allows a lawnmower's moving parts to work.
How many belts are on a riding lawn mower?
Most mowers have at least two drive belts. There are two belts on most riding lawnmowers. One belt connects the transmission of the lawn tractor to the driveshaft pulley and the other belt connects the mower deck to the driveshaft pulley.
Can a lawn mower belt stretch?
Belts don't actually stretch in length, the sidewalls wear from pulling, and your belt gets more narrow. That's what makes your belt appear to have stretched. Replace it with a new belt. It will bring your adjustment back to the original size belt.
How do you tighten the belt on a riding lawn mower?
How to Tighten a Riding Lawnmower Belt
- Turn off the engine of your lawnmower and disconnect the spark plug wire as well.
- Locate the main frame tube on your lawnmower.
- Locate the belt, also known as the drive belt, inside the deck of your lawnmower.
- Tighten the belt of your lawnmower by shortening the location of the main frame inside the clamps.
What happens if a belt breaks while driving?
If a timing belt breaks, the engine will no longer work. If a timing belt breaks while driving in an interference engine, the camshaft stops turning leaving some of the engine valves in the open position. The heavier crankshaft will continue rotating by inertia, moving pistons up and down.
Will a new serpentine belt improve performance?
If your old belt was glazed and slipping, then yes. The new belt does not slip therefore everything is turning and generating at full capacity, hence the improvement you see. Not really. All of your accessories(power steering, air-conditioning, etc.)
Can you drive without serpentine belt?
As you can see, driving without a serpentine belt is not an option, at least not for very long. *Some cars have an electric water pump and/or electric assist steering.
How much is a belt tensioner?
The average cost for a drive belt tensioner replacement is between $211 and $239. Labor costs are estimated between $73 and $93 while parts are priced between $138 and $146. Estimate does not include taxes and fees. When would you like to drop off your car?
Does the serpentine belt affect the transmission?
Effect of Serpentine Belts on Transmission. As a result, if the serpentine belt is worn out or breaks, it results in engine overheating and losing the powered steering and charging system.
How much does it cost to replace a drive belt?
Once the belt starts to wear thin or breaks, it will need replacing, if those parts are going to work as they should. You will pay between $120 and $160 for this replacement job. The labor should cost about $80, while parts will run you about $60.
Is timing belt the same as serpentine belt?
The serpentine belt and the timing belt are all important parts of an engine. A serpentine belt does more work than a timing belt. Timing belts synchronize the movement of the crankshaft and the camshaft while the serpentine belt transmits mechanical power which drives the air conditioner, water pump, alternator, etc.
How do I know if my tensioner pulley is bad?
The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
What does the idler pulley do?
Idler pulleys are engine pulleys that are responsible for guiding and tensioning the engine drive belts. The engine drive belts are routed in a specific manner around the various engine accessories, such as the alternator, water pump, power steering pump, and AC compressor.
How many belts does a car have?
Most cars have one or two drive belts. It is also called a serpentine belt when there is only one drive belt in a car. Whether it is a drive or serpentine belt, it is a part of the accessories that drive a car's engine. The rubber-made component lasts for a long time, something between 40,000 and 70,000 miles.
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