Valve spring - Ref 0705545100

• Goujon M6x100
• Longueur total : 64mm

The sets are supplied with the following components:

• Liners (x4)
• Pistons (x4)
• Rings (x12)
• Pin (x4)
• Circle clips (x8)

Dimensions of the various parts:

• • Liner bore diameter: Ø 54.5mm
  • Liner flange or top diameter (D): Ø 72.77mm
  • Liner base diameter (A): Ø 60mm
  • Overall skirt height (C): 122mm
  • Height from top of cylinder liner to base gasket reach (E): 111.25mm
  • Shaft dimensions: Ø 14x46mm (Cirlip-free mounting)
  • Ring thickness: 2mm / 2mm / 3mm (Fireproof/Sealing/Scraper)
  • Base gasket type: Copper gasket

Caution:It is likely that the cylinder liners and pistons are manufactured Modern pistons are equipped with a shorter skirt. Installing modern cylinder liners and pistons, to replace the original kits, requires no modifications.

A shorter skirt promotes better lubrication and allows for an increased crankshaft stroke to prevent the skirt from contacting the connecting rod.

Piston installation direction: An arrow drawn perpendicular to the piston axis is marked on the top of the piston. It must be oriented in the direction of engine rotation during the connecting rod's downward stroke (see manufacturer's instructions or diagram). It is essential to check the ring end gap of each piston ring before installing them on the pistons, according to the values ​​given by the manufacturer or in the supplied instructions. During installation, the ring end gap must be evenly distributed around the piston circumference at 120° intervals. 

Suitable for vehicles:

• 4CV / Juvaquatre: Type 662 Engine (From June 1956)
• Dauphine / Dauphinoise / Estafette / Floride A106 / A108: Type 670 Engine
• R4: Billancourt Type 800-02/05 Engine (From 1962)

Bearing Dimensions:

• Dimensions: Original (Standard) Dimensions
• Crankpin Diameter (A): Ø 38.00mm
• Housing Diameter (B): Ø 41.14mm
• Bearing Width (C): 21.18mm
• Bearing Thickness (D): 1.57mm
• Smooth, lug-type bearings with no grease holes or grooves
• Bearing Material: Bimetal

• Plate compatible with 7 or 8 hole water pumps

Suitable for engines:

• Engine Type 662: 4CV / Juvaquatre / A106
• Engine Ventoux Type 670-1 / 670-04: Dauphine (Except R1093 / R1094 and Gordini R1095) / Estafette / Floride (R1092) / A108

Valve sold individually

• This ignition harness consists of4 spark plug wires and 1 coil wire.
• We would like to point out that our spark plug wires are made with Ø 7 mm silicone wires, black in color, with a standard copper core (wire material), which indicates that they do not have interference protection.
• If the vehicle is equipped with sensitive electronic accessories, such as Radios, tripmasters, monitors, or certain electronic ignition kits may cause interference or disruption.