Index Chrysler Chrysler Town & Country/Voyager, Dodge Caravan, Plymouth Voyager - service repair manual 1992 year
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scuffing, scoring or scratches. Usually a few strokes (2) Deglazing of the cylinder walls may be done using a cylinder surfacing hone, Tool C-3501, equipped (3) Honing should be done by moving the hone up and down fast enough to get a cross-hatch pattern. (4) A controlled hone motor speed between 200-300 RPM is necessary to obtain the proper cross-hatch (5) After honing, it is necessary that the block be cleaned again to remove all traces of abrasive. CAUTION: Be sure all abrasive are removed from MEASURING MAIN BEARING CLEARANCE AND PLASTIGAGE METHOD Engine crankshaft bearing clearances can be deter- mined by use of Plastigage or equivalent. The following (1) Remove oil film from surface to be checked. Plastigage is soluble in oil. (2) The total clearance of the main bearings can only be determined by removing the weight of the PREFERRED METHOD — Shimming the bear- ings adjacent to the bearing to be checked in order to Im (10-15 ft.lb.) • When checking #1 main brg shim #2 main brg • When checking #2 main brg shim #1 & 3 main brg • When checking #3 main brg shim #2 & 4 main brg • When checking #4 main brg shim #3 & 5 main brg • When checking #5 main brg shim #4 main brg Fig. 1 Cylinder Bore Cross-Hatch Pattern Fig. 2 Plastigage Placed in Lower Shell Fig. 3 Clearance Measurement . ENGINE 9 - 3 |