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Pontiac 10100061 Piston & Pinion Asm(.04Mm Oversize)

1990-1994 Pontiac

Customer Questions & Expert Answers (4)
GM 10100061 Piston & Pinion Asm(.04Mm Oversize)
  • Part Description
    PISTON, Engine Piston
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers
  • Product Specifications

    BrandGenuine Pontiac
    Manufacturer Part Number10100061
    Part DescriptionPISTON, Engine Piston
    Item Dimensions4.8 x 4.3 x 4.4 inches
    Item Weight1.60 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Require Quantity6
    ManufacturerGeneral Motors
    SKU10100061
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California’s Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1990-1993 Pontiac Grand Prix6 Cyl 3.1L2 DOOR, 4 DOOR, GT 2 DOOR, LE 2 DOOR, LE 4 DOOR, SE 2 DOOR, SE 4 DOOR, STE 4 DOOR
    1992-1994 Pontiac Sunbird6 Cyl 3.1L2 DOOR, 4 DOOR, CONVERTIBLE, GT 2 DOOR, LE 2 DOOR, LE 4 DOOR, LE CONVERTIBLE, SE 2 DOOR
  • Customer Questions & Expert Answers

    Q:
    I am wonder if this is complete and correct part for my vehicle. Posted by GMPartsGiant Specialist
    A:
    You can Select Your Vehicle to check if 10100061 fits your vehicle.
    Posted by GMPartsGiant Specialist
    Q:
    How to inspect piston/connecting rod assemblies and replace piston rings? Posted by Customer
    A:
    First, before beginning the inspection, clean the piston/connecting rod assemblies and remove the old piston rings so that you always use new ones when reassembling the engine. Use a piston ring installation tool to take off the rings without damaging the pistons. Once most of the deposits have been scraped away, scrape every bit off carbon deposits from the piston tops by using a hand-held wire brush or fine emery cloth; do not use a wire brush driven by a drill motor to prevent erosion of the pistons. A tool for cleaning out carbon from a ring groove or an old ring piece should be used to sweep out carbon from ring grooves without scoring their sides. When deposit removal is complete, clean these with solvent and dry with compressed air if available. If neither heavy wear nor damage is found on pistons and cylinder walls, and also no reboring of engine block has occurred then new pistons may not be necessary. Even vertical wear on piston thrust surfaces and slight top ring looseness in its groove are classic symptoms of normal piston wear. If one intends to rebuild an engine, then it's necessary to use new rings for each piston. Every single piston must be thoroughly inspected for cracks at skirt, pin bosses as well as ring lands. Inability to move freely due to scoring or scuffing; burnt areas around crown edge; holes in its crown will mean problems such as overheating abnormal combustion including spark knock needs immediate attention. The presence of small pits indicates that there is coolant leakage which must be rectified. Measure this with feeler gauge next to a new piston ring in each groove at many points. Bore measurements are taken at specific points depending on engine type while diameter checks are made across several positions along side clearance of each groove with reference to feeler gauge readings and specifications provided by vehicle maker require usage of various locations according kind machine used During measurement of heights-which are taken at different locations with respect to ring manufacturers' specifications-these must never go beyond the given limit. However, if the clearances are greater than specified, then it means that the block must be rebored and new pistons and rings installed. If there is any play in a piston-to-rod clearance, this can be checked by taking the assembly to an automotive machine shop where excessive wear can be addressed. In case piston disassembling is required, consult an automotive machine shop but when there, do not take apart pistons as well as connecting rods unless unnecessary and at that stage examine connecting rods for bend and twist too. Look out for cracks or damage in connecting rods doing temporary removal of rod caps to inspect or replace worn bearing inserts before cleaning both rod and cap bearing surfaces so that when connecting rod knock may necessitate a complete rebuild of this engine that is already being done.
    Posted by GMPartsGiant Specialist
    Q:
    What action should be taken if the endplay exceeds the service limit for the 1992 Chevrolet Beretta? Posted by Customer
    A:
    If the endplay exceeds the service limit, new connecting rods will be required.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    Q:
    What should be verified after the installation of all piston/connecting rod assemblies is completed for the 1995 Chevrolet Beretta? Posted by Customer
    A:
    After installation, rotate the crankshaft manually to check for binding, and verify connecting rod endplay as needed.
    Posted by GMPartsGiant Specialist
    See expert answers on similar Piston
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

Genuine GM Part 10100061, the Right Choice

To ensure reliability, purchase GM part # 10100061 Piston & Pinion Asm(.04Mm Oversize). It is sometimes referred to as Pontiac Piston. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Pontiac Grand Prix, Sunbird models.

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