Question 1

How to measure Rod Bearing Clearance on Dodge Grand Caravan?

Accepted Answer

Mark each of the bearing caps when you take them off, as they cannot be used for different positions. The bearing shells should be fitted onto the machine parts so that the tangs from the caps remain on the same side as the rods. Set up all of your rods on the same side of the riverbank until all are ready to cast. Standard and undersized versions of connect rod bearing are sold at 0.025 mm (0.001 in.) and 0.250 mm (0.010 in.). When installing bearings, use pairs, never combine new and old halves and do not attempt to sharpen the rods or bearing covers. Test the rod journal to see if it has taper and is circular. After rotating the crankshaft until the connecting rod is at the lowest point, wipe away any oil from its surface, put a strip of Plastigage onto the full width of the bearing in the rod cap 6.35 mm (1/4 in.) from the oil hole, install the bearing cap with Plastigage in position, tighten it to specification, unmount the rod cap and measure the flatted Plastigage against the scale on the Plastigage package. Record each reading you take, because Plastigage marks both inch and metric figures. Should the bearing be past its wear limit, you should replace it.

Question 2

How Can Rod Bearing Caps Be Marked and Installed to Prevent Interchangeability Issues on Dodge Grand Caravan?

Accepted Answer

After removing the bearing caps, mark them so they are in the correct place after assembly, because they cannot be changed. While installing the shells, place the tangs into the machine-made grooves on the rods and caps, both tangs on the same side as the rod. Arrange all of the rods on the same bank until all are fitted. The industry provides connecting rod bearings in both standard and undersize formats of 0.025 mm (0.001 in.) and 0.250 mm (0.010 in.). You should install pairs of bearings, never mix old and new halves and don't touch the bearing caps or rods with a file or sharp tool. Check the journal on the connecting rod for signs of taper and roundness. You should measure connecting rod bearing clearances using Plastigage or a similar method. First, turn the crankshaft so that the connecting rod under inspection is at the lowest point in its movement and afterward wipe away the oil from the surface being checked, because Plastigage dissolves in oil. Use Plastigage to measure across the width of the bearing shell in the cap and place some where you suspect a problem as well. First, put the Plastigage on the rod cap and screw on the cap to the proper torque by not turning the crankshaft to make sure Plastigage is not smeared. After opening the bearings, take off the cap, check the Plastigage and look at the readout on the package to get the oil clearance. Any difference between the ends of the Plastigage shows taper in the bearing. Jot down all readings and whenever the recorded results show the bearing clearance is beyond the wear limit, you should change it.

OEM Dodge Grand Caravan Rod Bearing

8 Rod Bearings found

Dodge Grand Caravan Bearings Part Number: 5174612AA

Dodge Grand Caravan Connecting Rod Bearing Part Number: 5184113AF

Dodge Grand Caravan Connecting Rod Bearing Part Number: 5184111AF

Dodge Grand Caravan Connecting Rod Bearing Part Number: 68002286AC

Dodge Grand Caravan Bearings Part Number: 5161294AA

Dodge Grand Caravan Rod Bearings Part Number: 4397722

Dodge Grand Caravan Connecting Rod Bearing Part Number: 5184112AF

Dodge Grand Caravan Connecting Rod Bearing Part Number: MD105277

Dodge Grand Caravan Rod Bearing

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