41 replies to this topic

[YELLAcakeu308]

il give that a go s pack, but ive been able to see spark when earthing the plug lead on the strut tower bolt before..

[YELLAcakeu308]

Test with spark plugs on the ends of the leads and earth the spark plugs to the negative batt terminal via jumper leads.

tried this today and I'm still not getting any spark.

[YELLAcakeu308]

update. Still not getting any spark. I watched nzstato`s youtube on bosch hei rebuilding which gave me a bit of confidence to pull out the dizy & do some testing...  Hei.module1.jpg   86.87K   2 downloads

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•  Hei.module2.jpg   89.49K   0 downloads
•  Hei.pickupcoil.jpg   78.24K   1 downloads

[YELLAcakeu308]

in the 2nd pic of the module, it tested zero... I think the module might be my spark problem...

[YELLAcakeu308]

ive found a hei dizy in the shed, which came with a turbo setup i bought year ago.
Bolted it on & i am still not geting any spark. Module tested ok.
So pulled the module off & put it on a spare bosch hei dizzy that i hadnt used for maybe 8 years... & still no spark.
The coil is new but could it be faulty?

[Rockoz]

Are you getting any spark at all?

If you want to test your coil put a plug on the end of its lead and earth it.

Disconnect the wire to the -ve terminal of the coil and run another wire from the terminal.

While checking for spark on the plug put the wire from the -ve terminal on and off an earth repeatedly.

Dont however have your fingers near the end of the wire.

As you put the wire on and off the earthed surface you should get spark directly from the coil.

Hope that makes sense.

Edited by Rockoz, 02 November 2013 - 08:42 PM.

[YELLAcakeu308]

thanks Rockoz , i just tested the coil the way you sugested.
When i earth the wire that connects to the negative side of the coil it sparks.. But im not seeing any spark from the plug lead. I have earthed by puting a spark plug on & siting it on the negative battery terminal

[Rockoz]

If the wire to the coil is sparking it means the coil is drawing power. Be careful with it. Induced voltages can hurt. If you arent getting spark out to the plug then you have a problem with the coil.

Hopefully the plug lead is ok?

Edited by Rockoz, 03 November 2013 - 04:27 PM.

[YELLAcakeu308]

just tried annother plug lead & it didnt make a diferance.
When does it $end$
lol

[Rockoz]

Pretty sure then that it will be the coil.

They arent too expensive?

[YELLAcakeu308]

bought the coil new in june, its done less then 30mins work.
Never had any dramas with a msd blaster...

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•  Craneps91.jpg   97.26K   0 downloads

[Rockoz]

The ignition coil housing is earthed properly?

Brand new stuff does stuff up. Thats why they give warranty

Edited by Rockoz, 04 November 2013 - 08:13 PM.

[YELLAcakeu308]

I bolted it to the firewall.
hope I can find the box it came in. Il give em call

[YELLAcakeu308]

Bought a new crane coil.
fired it up with a spare hei.
this hei dizy wouldn't start with the old coil.
it also has vac advance, it has been curved to suit a auto 308 with 750 vac secondarys.
should I remove the advance or will I get away with blanking it off for this engine?
its a manual 308 torque power dual plane with 750 speed demon

[YELLAcakeu308]

anyone?

[YELLAcakeu308]

farawayboy. I kinda gave up on playing with this problem. I ended up having 3 hei dizys swaping modules , caps , buttons. even got a ford cap & button stil no luck. So il get the hei rebuilt when engine goes to brisbane.