Timing

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Red76

Timing

Post by Red76 »

First thanks to everyone for the help in my prior topic. Now that its "running" there are other issues. Thought it would need a new topic.
First I know setting the timing before I get the new cap & rotor in could be useless. But when they do arrive how in the heck do you use the timing light with the battery in the trunk? I went and bought a timing light just for my Spider and there is no way it will reach. Is it ok to make some extensions or is there something I'm just not noticing?
mdrburchette
Posts: 5754
Joined: Wed Jan 25, 2006 5:49 am
Your car is a: 1972 Fiat 124 Sport
Location: Winston-Salem, NC

Re: Timing

Post by mdrburchette »

You just need a 12v supply and a ground. Maybe an alternator stud or somewher on the starter?
1972 124 Spider (Don)
1971 124 Spider (Juan)
1986 Bertone X19 (Blue)
1978 124 Spider Lemons racer
1974 X19 SCCA racer (Paul)
2012 500 Prima Edizione #19 (Mini Rossa)
Ever changing count of parts cars....It's a disease!
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manoa matt
Posts: 3442
Joined: Thu Oct 26, 2006 4:28 pm
Your car is a: 1978 Fiat 124 Spider 1800
Location: Honolulu, Hawaii

Re: Timing

Post by manoa matt »

Yep, clip the red lead to the large rear stud on the alternator, then the black lead to the ground pod on the drivers side inner fender. Inductive pickup on #4 wire.

Although your 76 may have the alternator on the exhaust side, watch out for the wires around the belts.
digitech
Posts: 336
Joined: Sun Jul 19, 2009 6:37 am
Your car is a: 1979 Fiat Spider

Re: Timing

Post by digitech »

You can also just clip to the bat + term. on the coil, it's right there.
LSprad

Re: Timing

Post by LSprad »

if I'm correct connect the red wire to the b+ on the coil, it should be a blue/stripe black wire, then the ground to the hood latch. Connect to the number One spark plug There should be three (3) marks on the belt guard. the one at the lowest mark should be 0 TDC.When you point the light towards the marks you should see the lines on crank and belt guard, during that time turn you distributor to line up during the flashing of the light. Don't forget to first loosen the distributor enought just to barely turn it. good luck
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maytag
Posts: 1789
Joined: Mon Oct 19, 2009 9:22 pm
Your car is a: 1976 124 spider
Location: Rocky Mountains....UTAH! (Not Colorado)

Re: Timing

Post by maytag »

LSprad wrote:if I'm correct connect the red wire to the b+ on the coil, it should be a blue/stripe black wire, then the ground to the hood latch. Connect to the number One spark plug There should be three (3) marks on the belt guard. the one at the lowest mark should be 0 TDC.When you point the light towards the marks you should see the lines on crank and belt guard, during that time turn you distributor to line up during the flashing of the light. Don't forget to first loosen the distributor enought just to barely turn it. good luck
Dunno about yours, but the hood latch on my '76 is not grounded. it is mounted with a rubber backer, I assume to damp vibration? but not to be picky; there are many, many good grounds under the hood, of course. And also many 12v+, as others have pointed-out.

And as a tangent: I hope you bought a timing light with an advance dial on it? This sure helps in determining advance curves, and can make your initital / static timing job a lot easier too, of you're setting to anything other than 0.
I'm no Boy-Racer..... but if I can't take every on-ramp at TWICE the posted limit.... I'm a total failure!
131
Posts: 672
Joined: Sun Nov 14, 2010 1:13 am
Your car is a: 1982 131 Superbrava warmed 2.0 litre.
Location: Tasmania, Australia

Re: Timing

Post by 131 »

LSprad wrote:Connect to the number One spark plug
Number 4, you can't check cam timing otherwise!
Mick.

'82 2litre 131, rally cams, IDFs & headers.
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