611600060025 Truck Belt Tensioner Pulley Engine Parts

Product Specification

Product Name:

611600060025 Truck Belt Tensioner Pulley

Product Details:

Important Notice:

Most late-model engines have serpentine belt drives for the engine-driven accessories, and most people know that belts are a maintenance item that eventually has to be replaced. However, many people don’t know the spring-loaded automatic tensioner that keeps a serpentine belt tight is also a wear item. Consequently, the automatic tensioner may also have to be replaced when the time comes to change the belt.

The automatic tensioner has a coil spring inside that applies just the right amount of force against the belt to keep it tight. The tensioner also provides a little “give” so it can absorb and cushion shock loads on the belt that occur when the A/C compressor clutch cycles on and off. What’s more, the tensioner automatically compensates for wear and keeps the belt under constant tension. But, nothing lasts forever — and that includes belts and automatic tensioners.

FAQ:

1.How can I get the price?

-We usually quote within 24 hours after we get your inquiry(Except weekend and holidays). If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.

2. Can you provide sample for me?

-Yes,we can provide samples for you ,but you may need to pay some charge accordingly.

3.What is your lead time?

-It depends on the order quantity and the season you place the order.
Usually we can ship within 7-15 days for small quantity,and about 30 days for large quantity.

4.What is your payment term?

-T/T,Paypal,Western Union and MoneyGram.This is negotiable.

5.What is the shipping method??

-It could be shipped by sea,by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect).Please confirm with us before placing orders.

Tensioner Checks:

Check the movement of the tensioner arm with the engine off. Use a socket with a long handle ratchet or breaker bar on the tensioner pulley center bolt to rotate the tensioner. There are no specifications for measuring the amount of resistance offered by the tensioner spring, but if the tensioner offers little resistance, it may indicate a weak or broken spring. If it fails to move at all, the tensioner is jammed and needs to be replaced.

Watch for looseness in the arm when the tensioner is rotated. The arm should not wobble or twist. If it does, the tensioner bearings are worn and the unit needs to be replaced.

Also note the position of the arm on the automatic tensioner. Many units have marks on the housing that show the normal range in which the arm can pivot. If the position of the arm is outside these marks, it indicates a problem (the belt may be too long or too short, or the tensioner may be jammed).

Note the wear pattern on the tensioner and idler pulley(s). Misalignment and bearing wear can cause the belt to track off-center and will cause it to wear quickly. Check the tensioner and idler pulley bearings by removing the belt and spinning the pulleys by hand. All pulleys should turn freely with no binding, roughness or wobble. Any binding, roughness or wobble means these parts are bad and need to be replaced.

Pulley alignment should also be checked to make sure there isn’t a mounting problem in the belt-drive system. It can be checked by placing a straight edge against the pulleys or with a special laser alignment tool designed for this purpose.

Replacement Tips:

If the automatic belt tensioner has failed (and the engine has a lot of miles on it), it’s probably a good idea to replace the idler pulley(s) at the same time. Why? Because the shaft bearings on all the pulleys will have the same amount of wear. If they are reaching the end of their service life, replacing them now will restore the pulleys to like-new condition and reduce the risk of a breakdown because of a belt or pulley failure.

A special tool may be needed when replacing a serpentine belt or automatic tensioner on a transverse-mounted engine in a FWD vehicle. The tool has a long, flat extension handle that allows a socket to be placed on the tensioner bolt or flats on the tensioner arm.