Engine Hardware

July 13, 2014

2   T O P   E N D   P A R T S

 

P I S T O N   P I N   C L I P S
132038   clip with tail for 10mm pin   $1  for some mopeds
000000   clip with tail for 12mm pin   $2  for most mopeds
633848   clip with tail for 13mm pin   $2  Motobecane
05-1222  clip with tail for 14mm pin N/A  Jawa
132039   clip no tail for 13 or 14 pin  $1.50  

H E A D  or  E X H A U S T   N U T S
M5nut5   Plain Nut M5 -0.8 x 5 tall   $0.20
Morini     Tall Nut M5 -0.8 x 20 tall   $2.00 
M6nut6   Plain Nut M6 -1.0 x 6 tall   $0.25
M6nut7   Plain Nut M6 -1.0 x 7 tall   $1.00    
430300   Brass Nut M6-1.0×10 tall   $3.00
M7nut7   Plain Nut M7 -1.0 x 7 tall   $0.50
M7nut8   Plain Nut M7 -1.0 x 8 tall   $2.00

C Y L I N D E R   S T U D S
1100341   cylinder stud M6 x 103   N/A  Puch mopeds 1975-86
407801    cylinder stud M6 x 106     $5  aftermarket for Puch
E1-14      cylinder stud M6 x 107     $5  Trac/Laura M56
28-1112   cylinder stud M6 x 114     $8  Jawa mopeds 1970-83+
233716   stepped stud M6/7×114    N/A  Tomos A55 2002-13
205386    cylinder stud M7 x 114     $4  Garelli 1974-80+
205386    cylinder stud M7 x 114     $4  Tomos A3 and A35 1974-06

E X H A U S T  or  I N T A K E   S T U D S

28-1410   stud M5 x 23               $4.00  Jawa exhaust
28-1408   stud M5 x 27               $3.00  Jawa intake
Gstud25   stud M6 x 25               $1.50
Gstud30   stud M6 x 30               $2.00  Tomos A55 exhaust and others

 

To follow: wrist pin needle bearings, wrist pin bushings

 

3   W O O D R U F F    K E Y S

================================================================================

Loose your woodruff key? You’re not alone. These tiny things have a huge importance. When a magneto flywheel key is missing, and the nut is not fully tight, the flywheel can slip and cause the sparks to happen at the wrong time.



Above, some of Myrons keys for sale, made in Germany. L to R: 3.0 x 5.0 (M-86), 2.5 x 3.7 (M-82), 2.0 x 3.7 (M-81), 2.0 x 2.6 (M-80). They look smaller because of the rounded edges, plus the ruler is closer to the camera. These are the “sharp edge type”, but not “knife edge” sharp. The “chamfered edge type” are way more rounded at the circle edges only. A chamfered key will always replace a sharp key, but only sometimes will a sharp key replace a chamfered key, of the same dimensions. 

Part # #                Description Price           Applications
###### ### ############################# #### ##################################
…….. W O O D R U F F … K E Y S diameter is what the full circle would be
Width x Height x Length x Diameter CEV/Dansi/Motoplat all 80mm ID flywheels
###### ### ####### 2 . 0 mm  K E Y S  ######## #### ##################################
M-80 woodruff key 2.0 x 2.8 x 6.9 x 7.0 $2 Garelli 1-spd 273.511.0046, CEV 6933 flywheel
M-81 woodruff key 2.0 x3.7 x 9.4 x 10.0 $2 Sachs 504 (KTM), CEV 6949 flywheel
….continued > Sachs 504, sm Bosch 0212 010 001 flywheel
….continued > Kreidler, sm Bosch 0212 010 002 flywheel
….continued > Italjet + Morini, Bosch 0212 010 003 flywheel
….continued > Bat/Trac M56, sm Bosch 0212 010 004 flywheel
###### ### ####### 2 . 5 mm  K E Y S  ######## #### ##################################
???? woodruff key 2.5 x3.0 x 9.0 x 10.0 N/A Garelli 2-spd 217.018.0015, CEV 6939 flywheel
127025 woodruff key 2.5 x3.0 x 8.9 x 10.0 cham. N/A Morini MO1,MO2,M1, Dansi/CEV flywheel
M-82 woodruff key 2.5 x3.6 x 9.6 x 10.0 $2 Derbi ’76-86 Motoplat & ’86-89 CEV flywheels
###### ### ####### 3 . 0 mm  K E Y S  ######## #### ##################################
M-95 woodruff key 3.0 x3.0 x10.2 x13.0 cham. N/A
4720 woodruff key 3.0 x3.7 x 9.6 x 10.0 N/A Minarelli #4720, CEV 6932 flywheel
M-85 woodruff key 3.0 x3.6 x 9.5 x 10.0 $4 Puch #900.4503, big Bosch flywheel
….continued > Sachs 505 big Bosch flywheel
M-96 woodruff key 3.0 x5.0 x12.3 x13.0 cham. $7 Vespa flywheel & rear variator/clutch
M-86 woodruff key 3.0 x5.0 x12.3 x13.0 $2 Puch 1-sp clutch
….continued > Batavus M48 big Bosch flywheel
….continued > Batavus/Trac M56 clutch
….continued > Kinetic flywheel & rear pulley
….continued > Vespa flywheel & rear variator/clutch
M-88 woodruff key 3.0 x6.5 x15.5 x16.0 N/A Batavus/Trac M56 rear pulley
PA50key woodruff key 3.0 x3.5?x13.2?x16.0 N/A Honda Hobbit flywheel, can grind an M-86
###### ### ####### 4 . 0 mm  K E Y S  ######## #### ##################################
M-89 woodruff key 4.0 x5.0 x12.5 x13.0 N/A
M-100 woodruff key 4.0 x5.5 x18.0 x19.0 N/A
M-90 woodruff key 4.0 x6.5 x15.4 x16.0 N/A Garelli 217.036.00 2-spd primary shaft
M-97 woodruff key 4.0 x6.5 x15.5 x16.0 cham. N/A
###### ### #######  M I S C    K E Y S  ######## #### ##################################
200048 roller/round key D=3 H=4 $5 Tomos all years, all flywheels
044835 straight key W=5.0 H=5.0 L=12.0 $2 Tomos countershaft key (race track shaped)


4   E N G I N E    N U T S

==============================================================================

Welcome. These are the engine nuts that go on rotating shafts, rather than stationary nuts, like the head nuts. For head nuts see Engine Top End. Some are very specific and others are more universal.   

 

___________________8 mm N U T S__________________
M8x1             plain nut   M8x1.00 x 8 RH hex13   $2  Sachs 504, Batavus/Trac M56 flywheel nut
3618446       flange nut M8x1.00 x 9 RH hex12   n.a.  Garelli 000.361.8446 1974-76 1-sp flywheel nut
M8x1.25        plain nut   M8x1.25 x 8 RH hex13   $2  Vespa Ciao (non-variator) clutch nut
continued                                                                    Vespa rear pulley nut, var & non-variator
Vespa            thin nut    M8x1.25 x 7 RH hex24   n.a.  Vespa Bravo/Grande/Si variator nut
Morini            thick nut   M8x1.25×16 RH hex15 $10  Morini MO1,MO2,M1, Dansi flywheel nut
00 20 161     plain nut   M8x1.25 x 8 LH hex13   n.a.  Odyssey (Solo) flywheel nut
___________________9 mm N U T S__________________
5040             castle nut M9x1.00 x 6 RH hex14   n.a.  Minarelli clutch (before 1978) stub plane clutch
6270             plain nut   M9x1.00 x 9 RH hex14   n.a.   Minarelli clutch (1978 to Sep 1979) cone clutch
2050118446 flange nut M9x1.00 x 9 RH hex12   n.a.  Garelli 205.011.8446 1977-on 1-sp flywheel nut
___________________1 0 mm N U T S__________________
????              thin nut    M10x1.00 x 6 RH hex14   $8  Derbi 1976-86 variator/clutch nut
????              thin nut    M10x1.00 x 6 RH hex17   $4  Sachs 504 & 505 clutch nut
4840             thin nut    M10x1.00 x 7 RH hex17   $3  Minarelli sprocket nut
49812           flange nut M10x1.00 x 7 RH hex21   $7  Peugeot clutch nut
9012943       flange nut M10x1.00 x 8 RH hex14   $5  Puch flywheel nut
M10x1           plain nut  M10x1.00×10 RH hex17   $2  Sachs 505 flywheel nut
continued                                                                     Batavus M48 flywheel nut
continued                                                                     Solo (Colombia) flywheel nut
continued                                                                     Solo (Odyssey) and Solo (Colombia) clutch nut
continued                                                                     Puch 1-spd clutch nut
continued                                                                     Batavus/Trac M56 rear pulley nut
143195         special      M10x1.00×12 LH hex32 $10  Motobecane flywheel 1980-later
17429           special      M10x1.00 LH square 10 $12  Motobecane flywheel 1974-1979
2170180015 thick nut   M10x1.00×14 RH hex14   $7  Garelli 2-spd 217.018.0015, flywheel nut
0F02600401 plain nut   M10x1.00 x 8 LH hex14   n.a.  Derbi rear pulley 1986-91
continued                                                                      Derbi flywheel 1986-91 “Start” engine
46768           thick nut  M10x1.00×15 RH hex16   $7  Peugeot flywheel nut
????              thick nut  M10x1.00×18 RH hex17   n.a.  Derbi flywheel 1976-1985
0F02610401 special     M10x1.00×30 LH hex17   n.a.  Derbi clutch 1986-91 “Start” flat case reed
????              plain nut  M10x1.25 x 8 RH hex14   $2  Honda PA50 clutch and flywheel nut
H210-00-50  plain nut  M10x1.25 x 8 RH hex14   $3  Indian flywheel nut
6275             plain nut  M10x1.25 x 8 LH hex15   $1   Minarelli clutch (after Sep 1979) cone clutch
4750             thick nut  M10x1.25×14 RH hex15   $10   Minarelli flywheel nut
___________________1 1 mm N U T S__________________
17454           flange nut M11x1.00 x 8 RH hex14   $6  Motobecane clutch nut (non-var)
17455           special      M11x1.00×21 RH hex14 $12  Motobecane clutch nut (variator)
___________________1 2 mm N U T S__________________
????               thin nut   M12x1.00 x 7 RH hex19   $3  Garelli clutch nut
????               thin nut   M12x1.00 x 7 RH hex19   $3  Sachs sprocket nut
????               thin nut   M12x1.25 x 6 RH hex17   n.a.  Morini MO-1 sprocket nut
????               thin nut   M12x1.25×10 RH hex19   $3  Batavus/Trac M56 sprocket nut
___________________1 4 mm N U T S__________________
????               thin nut   M14x1.50 x 5 RH hex19   $8  Derbi rear pulley 1976-1986
___________________1 6 mm N U T S__________________
9022922        thin nut   M16x1.50 x 8 RH hex24   $7  Puch 2-spd clutch nut

 

 

 

 

Table of Variator Rollers

Diam. Length Qty  Application
  15.0     18.0     3   Honda PA50I and PA50 II
 
  14.0     14.0     6   Honda Camino (Non US)
 
  14.4     14.0     5   Vespa Ciao, Bravo, Grande, Si
 
  14.6     19.6     3   Derbi 1974-1986
 
  14.0     13.0     ?   Morini M101
 
  14.0     13.0     6   Malossi variator for Motobecane
 
  15.0     12.0     3   Aftermarket guide Motobecane (instead of balls)
 
  16.0     13.0     ?  Malossi, Polini, TJT, DR (and many chinese scooters)

 

 

 

 

Now, do you feel like an engine nut?

 

Shaun has been organizing moped parts since 1986, when he made this seal and bearing chart on his Commodore 64. This actual paper was in daily use for 26 years.

Shaun has been organizing moped parts since 1986, when he made this seal and bearing chart on his Commodore 64. This actual paper was in daily use for 26 years, at Royal Cyclery and Myrons Mopeds!