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 Post subject: engine timing
PostPosted: Thu Jul 26, 2012 7:58 pm 
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848cc
848cc

Joined: Fri Apr 29, 2011 6:31 pm
Posts: 324
Location: Goulburn
hi all i have got my engine at top dead centre on cylinder one the timing mark on the flywheel lines up but i can get the engine to run it will wind and wind but wont carry through and run, ive got plenty of fuel and spark what could it be. do i have the dissy in the correct spot on the spindle?


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:08 pm 
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998cc
998cc

Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
You need to check that you are on top dead centre , compresion stroke not exhaust, take the rocker cover off and wind the motor over by hand to make sure , watch the rockers on number one. once you are on compresion stroke . take the distributor cap off and see were the rotor button is pointing,
this will be your starting point for number 1


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:14 pm 
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848cc
848cc

Joined: Fri Apr 29, 2011 6:31 pm
Posts: 324
Location: Goulburn
im sure ive got it one the compression stroke the rotor button is pointing straight up at number 4 cylinder. I ve put the leads on in the order of 1342 in an anticlockwise direction from the rotor button


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:21 pm 
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998cc
998cc

Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
Is number 1 lead where the rotor button is pointing ?


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:36 pm 
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848cc
848cc

Joined: Fri Apr 29, 2011 6:31 pm
Posts: 324
Location: Goulburn
yes


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:47 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
Turn the dizzy body clockwise a bit to advance it, most motors like static timing at around 10° BTDC.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:50 pm 
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998cc
998cc

Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
My rotor points to number 1 cylinder at spark


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 Post subject:
PostPosted: Thu Jul 26, 2012 8:55 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
Double check again the rockers are both loose on #4 when the rotor is pointing there.

ALL the workshop manuals for the last 50 years are WRONG in that they show one pic of the cam timing marks lined up dot to dot (= firing on #4 but they don't say this), then there's another pic showing the dizzy driveshaft in the right position for firing on #1.
They neglect to tell you that you have to turn the motor 1 TURN before fitting the dizzy driveshaft, to have this happen.
:wink:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Thu Jul 26, 2012 9:00 pm 
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998cc
998cc

Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
sounds like its 180 deg out


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 Post subject:
PostPosted: Thu Jul 26, 2012 9:05 pm 
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848cc
848cc

Joined: Fri Apr 29, 2011 6:31 pm
Posts: 324
Location: Goulburn
Ok doc I will check that tommorrow. Thanks for your advice


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 Post subject:
PostPosted: Thu Jul 26, 2012 9:12 pm 
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998cc
998cc

Joined: Fri Apr 01, 2011 8:33 pm
Posts: 1195
Get No 1 at TDC on the compression stroke (remove No 1 plug , stick thumb in hole and feel for pressure).

Attach No 1 plug lead to the terminal that the rotor is pointing at. Count off the other plug leads from there.

Cheers, Ian


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 Post subject:
PostPosted: Sun Jul 29, 2012 9:12 pm 
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998cc
998cc

Joined: Sat Jun 21, 2008 12:43 pm
Posts: 850
Location: Narellan NSW
So did you get it going ?


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 Post subject:
PostPosted: Mon Jul 30, 2012 7:15 pm 
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848cc
848cc

Joined: Fri Apr 29, 2011 6:31 pm
Posts: 324
Location: Goulburn
Yea got it going. Now I've got a problem with the starter motor not disengaging


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