MINI ROK 2014

Transcription

MINI ROK 2014

MINI ROK 2014
Specification Sheet 158676/A
Dated 01/01/2014
IDENTIFICATION SHEET
This Identification Sheet reproduces descriptions, illustrations and dimensions of the MINI ROK engine to be used in the
MINI ROK CUP recognised by Motorsport South Africa
Attention : ALL THE ENGINE PARTS MUST BE ORIGINAL BY VORTEX ROK.
Neither engines nor accessories can be modified. By this we mean any shape, content or function changes which may differ from what
previously conceived. Furthermore this includes any addition and /or removal of material and /or parts from the engine set-up package
unless provided by this regulation.
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MINI ROK 2014
Dated 01/01/2014
PICTURE ENGINE UPPER SIDE
PICTURE ENGINE LOWER SIDE
CYLINDER BASE
CYLINDERHEAD AND COMBUSTION CHAMBER
PICTURE OF THE CRANKCASE
INTERIOR PICTURE OF THE CRANKCASE
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MINI ROK 2014
Dated 01/01/2014
TECHNICAL INFORMATION AND CHARACTERTICS
EVERY MATERIAL ADDING OR REMOVAL (machining, burnishing, etc.) FROM ORIGINAL COMPONENTS IS FORBIDDEN
Max displacement
60 cc.
Max allowed bore
42,10 mm
Stroke
43,00 mm.
Admission system in the cylinder
Piston Port
Cooling system
Ad aria libera
Free Air
+/- 0,10 mm.
Carburettor :
CARBURETTOR DELL’ORTO PHBG 18 BS
See description pag.16
Number of transfers
2
Shape of exhaust transfer
A 4 angoli
At 4 angles
Widht of exhaust transfer
28,00 mm.
+/- 0,10 mm.
Widht of admission transfer
26,00 mm.
+/- 0,10 mm.
49 mm.
+/- 0,8 mm.
63 gr.
+/- 5 gr.
Total height of piston
Weight of piston
Shape of combustion chamber
Spherical, verifiable with gauge supplied by the
Manufacturer
PINION
Z11
Rear Sprocket
80 to 86 tooth all included
Bearings Crnakshaft
20/14/47
Volume of combustion chamber
6,80 cc. Min, over spark plug thread with
Clutch (Centrifugal, dry, without any
possibility of external adjustment).
Weight: 815 +/- 15 g
.
Diameter internal of the clutch housing:84.5 +/-0.1 mm
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MINI ROK 2014
Dated 01/01/2014
B
OPENING ANGLES measured through a thickness gauge of 0,20 mm having width of 5 mm and
degrees wheel with 200 mm diameter.
The exhaust angular reading must be measured with a 0,20 mm
thick and 5 mm wide wedge. (see drawing beside).
Tolorance
Transfers
116°,5’
+/- 1°
Inlet
142°
+/- 2°
Exhaust
154°
+/- 2°
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MINI ROK 2014
Dated 01/01/2014
CYLINDER DEVELOPEMENT
DRAWING OF CYLINDER BASE
CYLINDER SECTION
DRAWING OFCYLINDERHEAD AND COMBUSTION CHAMBER
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Dated 01/01/2014
CRANKSHAFT
WIGHT OF CRANKSHAFT WITH CONROD
1311 gr.± 10gr
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MINI ROK 2014
Dated 01/01/2014

PROCEDURE USED TO MEASURE THE VOLUME OF THE COMBUSTION CHAMBER












Disassemble the engine from the chassis
Wait until the temperature is ambient temperature
Disassemble the cylinder head in order to verify the projection of the sparking plug inside the
combustion chambre.
Disassemble the sparking plug ( verify the height of 18,5mm)
Screw the “INSERT” at the place of the sparking plug (The insert on the cylinder head has not to
overpass the superior part of the combustion chamber. It has to be fixed on the cylinder head in the
same way the sparking plug of 18,5mm was fixed)
Make it air tight and water tight with grease the upper part of the piston and the cylinder device
Raise up the piston and stop the crankshaft
Dry up the excess of grease
Be sure that the engine is on a flat surface
Move up the cylinder head and tighten it to clamping forces defined by the manufacturer.
Fill up the combustion chamber (with a mixture composed by 50% of the oil used to make the mixture
and the 50% of the fuel) using a graduated burette (mechanical or electrical) until the upper border of
the insert.
The measured volume must show a value which is complying with the minimum combustion chamber
volume set on the engine identification sheet concerned.
PROCEDURE USED TO MEASURE the Port Durations
a. The measuring will be done with a gauge as per the drawing under “cylinder specifications” in this
document
b. When placing the gauge into the port the gauge is not to be bent and must be held as per photograph
below
c. It must be inserted at 45° degrees on the wall, you should be able to move it forward and backward during
this operation, it must not give the sensation that it is somehow blocked. Once the piston has bottomed out no
pressure must be applied to the crankshaft to obtain the forward and backward movement of the gauge. The
feeling should be the same as when “setting a tappet on a four stroke engine
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MINI ROK 2014
Dated 01/01/2014
PISTON PIN
PISTON
15 gr Min
WEIGHT OF PISTON
63 gr +/- 5 gr
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MINI ROK 2014
Dated 01/01/2014
CONROD
WEIGHT OF CRANKSHAFT CRANKPIN
WEIGHT OF CONROD
71gr. +/- 1gr
94gr. +/- 10gr
PICTURE OF COROD Rigth Side
PICTURE OF CONROD Left Side
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Dated 01/01/2014
PICTURE OF CRANKSHAFT WITH THE BALANCER
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MINI ROK 2014
Dated 01/01/2014
MINIMUM DISTANCE OF THE CARBURETTOR SUPPORTING PLATE FROM THE CYLINDER AXLE
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MINI ROK 2014
Dated 01/01/2014
INTERIOR VIEW OF THE CRANKCASE
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MINI ROK 2014
Dated 01/01/2014
EXHAUST MUFFLER
Exhaust Weight 1.372 g. +/- 5%
EXHAUST MANIFOLD
EXHAUST GASKET
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MINI ROK 2014
Dated 01/01/2014
IMPORTANTE – IMPORTANT ALL THE ENGINE PARTS MUST BE ORIGINAL BY VORTEX.
PICTURES OF SELETTRA IGNITION
Cod. PVL 401 222
1.
2.
3.
4.
5.
AS PER ART.2, PAR. 16.7 OF THE CIK/FIA TECHNICAL REGULATIONS, ON DECISION OF THE Clerk of the Course, IT WILL BE
AUTHORISED TO INTERCHANGE ENTRANTS’ IGNITION SYSTEMS FOR THE SYSTEMS SUPPLIED BY THE ORGANISERS (SAME
HOMOLOGATED MODELS)
WIRING HARNESSES ARE FREE
THE BATTERY USED TO START THE ENGINE CAN BE FIXED ON THE SEAT OR ON THE CHASSIS TOO.
THE SIZE OF BATTERY IS FREE
NOTE THAT THE ONLY SPARK PLUG CAP PERMITTED IS AS PER ABOVE
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MINI ROK 2014
Dated 01/01/2014
COMPL. CLUTCH ROTOR WITH STARTING GEAR
WEIGHT OF COMPL. CLUTCH ROTOR WITH STARTING GEAR:
815g +/- 15g
ENGAGEMENT SPEED (MAXIMUM) CAN BE VERIFIED AT ANY TIME DURING THE EVENT AND MAYNOT BE MORE THAN
4000 RPM
HOUSING AND ROTOR
WEIGHT OF CLUTCH ROTOR
:
345 gr +/- 15gr
WEIGHT OF CLUTCH HOUSING
:
178 +/-10gr
TOTAL WEIGHT OF CLUTCH ROTOR AND HOUSING
512 gr +/- 15gr
:
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MINI ROK 2014
Dated 01/01/2014
Mini Rok
PHBG 18BS CARBURETOR SPECIFICATIONS:
Note: Please note that there have been NO changes to the carburetor specifications. This document is used
to clarify the Standard homologated carburetor and jets.
No machining or drilling of jets is allowed on the carburetor and its internal parts. The carburetor must remain
standard as supplied by the Vortex Rok Importer.
The importer / Technical Consultant also has the right to supplier competitors with new jets should it be
required.
This is a working document and will be updated as and when required. The responsibility is on the competitor
to check that the carb meets the required specification.
Carburetor Specifications for all South African 60cc Mini Rok classe for 2014 until further notice.
CARBURETTOR DELL’ORTO PHBG 18 BS
1. Throttle Valve Slide
=
40
2. Mixture Needle
=
W23
3. Atomiser
/ Emulsion Tube (Mini Rok)
=
266 AN
4. Atomiser
/ Emulsion Tube (Maxterino) =
262 AU
5. Idle Diffuser
=
50
6. Starter Jet
=
60
7. Main Jet
=
Free
8. Needle Valve Diameter
9. Float
=
4g
10. Air Screw
18. Surge Plate (Pg 2)
=
Compulsory
A. Other Dimensions
B. Other Dimensions
C. Emulsion Tube / Insert Height dimensions (MINI ROK)
D. General
Measuring of components:
Some components will be measured with aid of a vernier.
Measurement of Diameters applicable to the entire document:
Diameters of jets / holes will be measured using GO / NO GO gauges.
Special Tools / Drill bits will be used to measure some holes and used as GO / NO GO gauges.
These gauges can be verified with use of a 0-25mm micrometer.
“GO” Gauge will be required to slide into the required hole.
“NO GO” Gauges must not be able to slide into the required hole.
Should a part be found to be out of spec, it will be impounded for further measurement if required.
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MINI ROK 2014
Dated 01/01/2014
Illustration Only
0
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MINI ROK 2014
Dated 01/01/2014
1.
Throttle Valve Slide (40)
1.1
Length of Throttle Valve Slide
Spec: 27.50mm ± 0.15mm
1.2
Length of Cut Away to the top of the Throttle Valve Slide
Spec: 23mm ± 0.25mm
1.3
Length of Cut Away to the top of the Throttle Valve Slide
Spec: 23.4mm ± 0.15mm
Surface Finish: Cast
1.1
2.
1.3
1.2
Mixture Needle Mini Rok (W 23)
L
2.1
Table of Needle Specifications as per Supplier Chart (Dellorto)
(Also as per Master Sample W23 needle from the Vortex Rok Importer)
Characteristic expressed in millimeters
Type
Value
X
ØA
W23
23
2.5 ±0.03
2.2
2.2
2.3
ØB
C
ØD
E
F
L
0.6 ±0.05
(26 ±0.5)
2.5 ±0.03
-
-
45 ±0.2
Measured right
at the tip
Reference
Dimension
The Technical Consultant may also compare the needle to a master sample supplied by the
Vortex Rok Importer.
There must be 1 mixture needle stop (Circlip, #13 on page 2) fitted to the needle.
No Washer is permitted to be fitted either above or below the circlip.
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MINI ROK 2014
Dated 01/01/2014
Note: The marking “W23” on the needle does wear off after a period time. It is the responsibility
of the competitor to ensure that if the marking wears off, that the needle is replaced with a new
one.
Should the technical consultant inspect a needle that the marking is worn off; the needle will be
checked with reference to the specification above and / or a master sample. The needle will
then be impounded by the TC and the competitor will be required to fit a new needle.
Wear marks towards the tip of the needle, where the needle goes through the emulsion tube is
common. The needle should be replaced if wear is excessive.
2.4
2.5
2.6
3.
Atomiser
3.1
3.2
3.3
3.4
3.5
3.6
/ Emulsion Tube (Mini Rok)
(266 AN)
Length of Emulsion Tube
Spec: 36.00mm ± 0.20mm
Internal Diameter from side 3.2
GO Spec:
2.66mm (GO)
NO GO Spec: 2.69mm (NO GO)
Internal Diameter from side 3.3
GO Spec:
3.00mm (GO)
2 x Rows of 4 holes
GO Spec:
0.80mm (GO)
2 x rows of 3 holes
GO Spec:
0.80mm (GO)
Length of Nozzle tip to seating face
Spec: 27.00mm ± 0.20mm
3.
2
3.
4
3.1
3.
5
3.
6
Seating Face
3.3
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MINI ROK 2014
Dated 01/01/2014
3.
8
INSERT
3.7
Length of Insert
Spec: 12.00mm ± 0.20mm
3.8
Thickness of Flange
Spec: 1.00mm ± 0.20mm
3.9
Hole Diameter
Spec: 4.90mm ± 0.30mm
4.
Idle Diffuser
5.1
5.2
3.
9
3.
7
(50)
Length of Idle Diffuser
Spec: 9.50mm ± 0.20mm
Internal Diameter of Smallest hole inside the Idle Diffuser
GO Spec:
0.5 mm (GO)
NO GO Spec: 0.55 mm (NO GO)
5.1
5.2
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MINI ROK 2014
Dated 01/01/2014
5.
Starter Jet
6.1
6.2
6.3
(60)
Length of Idle Jet
Spec: 27.00mm ± 0.25mm
Internal Diameter of hole inside the Start Jet
GO Spec:
0.60 mm (GO)
4 holes, 90° apart
GO Spec:
1.00 mm (GO)
6.2
6.1
6.3
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MINI ROK 2014
Dated 01/01/2014
7.
High Speed Jet / Main Jet
The anti surge plate fitted between the emulsion tube and the main jet may NOT be removed.
7.1
Length of High Speed Jet / Main Jet
Spec: 8.0mm ± 0.3mm
7.2
Internal diameter of main jet.
Spec: Free
7.2
7.1
8.
Needle Valve
8.1
Internal Diameter of hole inside the Needle Valve
GO Spec:
1.45 mm (GO)
8.1
9.
9.1
Float
Weight of Float
Spec: 4.0grams (As marked on the bottom of the float)
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MINI ROK 2014
Dated 01/01/2014
10.
Air Screw
10.1
Diameter of Air Screw Orifice.
GO Spec:
1.10 mm (GO)
10.
1
9.2: Diameter of tip end:
9.3: Diameter of tip:
0.9mm ±0.05mm
1.2mm ±0.05mm
10.
2
10.
3
9.4: The Air Screw must be fitted with O-ring, washer and spring as illustrated.
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MINI ROK 2014
Dated 01/01/2014
A
Other Dimensions
A.1
Diameter of Throat.
The throat diameter must be checked from both sides of the carburetor.
Spec:
18.0mm ± 0.05mm
GO Spec:
17.95 mm (GO)
Diameter of hole A2 as illustrated
GO Spec:
1.00 mm (GO)
Diameter of hole A2 as illustrated
GO Spec:
2.50 mm (GO)
A.2
A.3
A.1
A.1
A.2
A.3
A.2
A.3
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MINI ROK 2014
Dated 01/01/2014
B.1
Diameter of hole B1 as illustrated
GO Spec:
1.10 mm (GO)
B.1
B.2
Diameter of hole B2 as illustrated
GO Spec:
1.0 mm (GO)
B.2
B.2
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MINI ROK 2014
Dated 01/01/2014
ITEM C IS ONLY FOR REFERENCE UNTIL FURTHER NOTICE
C
Emulsion Tube and Insert Protrusion (MINI ROK)
Special Tool XXX will be required to measure
dimensions.
Dimensions are from the centre line of the
18.00mm
Bore.
C.2
C.1
C1
Spec:
7.2 ± 0.5mm
C2
Spec:
9.5 ± 0.5mm
E
General
 The over flow nipples may be turned in any direction
 An overflow pipe may be fitted
 Some carbs have a brass insert fitted inside the overflow tubes (Supplied from Dellorto) on the inside
of the carb. This is to prevent “Break through” of internal channels and is permitted
List of tools required
Vernier
Special Tool #XXX (Still to be confirmed)
17.95mm GO Gauge
18.05 NO GO Gauge
Drill Bits, "GO / NO GO" Gauges Required (mm)
0.5
0.55
0.6
0.65
0.8
0.85
1
1.1
1.2
1.3
1.45
1.55
2.5
2.6
2.66
2.69
2.75
3
3.1
Please Note:
This is a working document and will be updated as and when required.
Should any discrepancies / queries regarding the document arise; the technical working group
will investigate and take the required action.
- pag. 26 -
www.vortex-rok.com
MINI ROK 2014
Dated 01/01/2014
INLET SILENCER
MODEL TYPE
MINI
CONNECTOR FIXING FILTER-CARBURETOR IN PLASTIC MATERIAL
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MINI ROK 2014

Transcription

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