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Abe

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Reply with quote  #1 
Evening all

So I’ve been looking at my timing on the pinto the last couple of days as it’s still pinking under load. I’m no expert so Ive been doing some googling. I took off the crankshaft pulley and with my burton protractor thing have filed a groove at the 38 degree mark to mark where I want my advance to be at approx 3500 RPM.
Anyhoo.... all back together, ticking over nicely at 1000 rpm and as advised with a Kent cam set the timing to about 14 degrees BTDC. Increased the RPM and discovered that at 2000 RPM the timing has fully advanced at that point. Looking at various graphs of others engines it should reach approx 3500 RPM before that happens.... so...

Out came the distributor and made some adjustments (the heavier spring wasn’t coming into play at all) to the spring posts and could see on a drill spinning at 3000rpm that the centrifugal weights opened far more progressively.

Anyway, rather embarrassingly I can’t seem to get the engine started again... tried the dizzy in a few positions close to TDC and I have a spark... question is.. looking at the pic below does anyone know at what point the pickup (arrowed) sends a signal, is it the middle point of this little curved unit?

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Abe

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I meant to say it’s odd It won’t start because I made marks on the rotor arm and distributor housing before I took out the distributor.
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Schrodinger

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Reply with quote  #3 
You're not 360 degrees out on the crank are you?
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Abe

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Reply with quote  #4 
Quote:
Originally Posted by Schrodinger
You're not 360 degrees out on the crank are you?

Nice just come back in from the workshop after having a brainwave half hour ago, I was 180 degrees out on the crank!
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Abe

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Reply with quote  #5 
Quote:
Originally Posted by Schrodinger
You're not 360 degrees out on the crank are you?

Sorry yes you’re right 360 degrees!
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Abe

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Reply with quote  #6 
Removed the dizzy again, spun crank through 360 degrees and reinserted. Sorted 👌
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Abe

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Reply with quote  #7 
Quote:
Originally Posted by Schrodinger
You're not 360 degrees out on the crank are you?


You would have solved this had I’d not figured it out. Thanks for your input 😊👌
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JT

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Good lesson learned there abe.
Did you rectify the dissy issue?
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Abe

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Quote:
Originally Posted by JT
Good lesson learned there abe.
Did you rectify the dissy issue?


Once it gets to an acceptable car revving sort of hour I’ll be finding out 😊👍 I suspect I may have to try a few different spring settings before its right.
I realise what happened now, I rotated the crank a little to allow the dizzy gears to mesh into the drive, except they didn’t mesh at first so I spun crank around for another go 🤪, I must have cocked it up at this point.
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Abe

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Reply with quote  #10 
Soooo much better!! Pulls hard to 5000 RPM 🤩
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overdriver

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Reply with quote  #11 
Told you that Pinto had more to give. Well done on sorting your dizzy, now stick some decent carbs on it!

Michael.

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Abe

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Reply with quote  #12 
Quote:
Originally Posted by overdriver
Told you that Pinto had more to give. Well done on sorting your dizzy, now stick some decent carbs on it!

Michael.


🤣 yes sir!! 👌👌👌
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