The 4.3-liter Chevy engine has been put in in vehicles, vans and SUV’s from Chevy, GMC, Buick, amongst different manufacturers. The 4.3-liter Chevy is a flexible six cylinder engine, being very reliable and making good energy and torque by way of the RPM vary (it’s principally a 5.7-liter engine with two of the cylinders eliminated). The engine makes use of a serpentine belt system to drive all the equipment hooked up to it, and though there are some variations on format, the belt system could be very a lot common on these engines.
Chevy V6 Change the Serpentine Belt Directions
Open the hood of your automobile or truck. Disconnect the negative battery cable from the battery terminal earlier than beginning any work on the belts. Remove the retaining bolt from the battery cable finish with a wrench, then take away the cable. Tuck the cable out of the means.
Find the serpentine belt tensioner on the front of the engine. Whereas there are lots of completely different vehicles that use this engine variant, the tensioner is all the time situated close to the center of the engine and has a protracted arm with a pulley on the finish of it. Some type of tensioners have sq. holes in the tensioner arms (which permit for ratchet attachment) and a few don’t.
Place a three/eight-inch or half-drive ratchet in the sq. gap on the tensioner, if the tensioner of your Chevy’s engine has the gap in it. The dimensions of the gap will fluctuate from type to type, subsequently you’ll have to attempt the ratchet in the gap to find out which dimension suits. If the tensioner doesn’t have the sq. gap in the its arm, place a socket on the bolt in the heart of the loafer pulley and fix a ratchet to it.
Rotate the tensioner counter-clockwise and launch the pressure from the belt. Remove the belt from the pulleys and punctiliously rotate the tensioner clockwise to the dwelling place. Install a brand new belt, following the authentic path over the pulleys. Don’t set up the belt on the tensioner but. The trail is essential, so in case you are unsure of the belt path, verify the serpentine belt diagram sticker that’s affixed underneath the hood.
Rotate the tensioner counter-clockwise and slide the belt onto the loafer pulley. Rotate the tensioner clockwise, permitting it to tighten the belt. Don’t power the tensioner–it’s going to modify to the appropriate stress by itself. Remove the breaker bar from the engine compartment, then set up the negative battery cable on the negative battery terminal. Tighten the retaining bolt with a wrench.
[source ehow.com]