How to lockout msd 8580

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How to lockout msd 8580

Post  tconnection on May 2nd 2013, 10:58 pm

I need to lock my 8580 out but i dont know how.Will somebody walk me through it? I did a search but no luck. Im fixin to search some more but still lf somebody knows right off, i'ld thank ya for your help.
Thanks

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Re: How to lockout msd 8580

Post  dino on May 2nd 2013, 11:31 pm

Remove the advance components including the springs, weights and the advance stop bushing from the advance assembly.
2. Remove the roll-pin from the shaft retaining sleeve and slide the shaft up.
3. Rotate the shaft 180° and insert the advance stop bushing pin into the small hole on the advance plate (Figure 7).
4. Install the locknut and washer to the advance stop bushing pin. This locks the advance in place.
5. Install the retaining sleeve and its roll-pin.

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Re: How to lockout msd 8580

Post  tconnection on May 3rd 2013, 10:18 am

Do the gear have to come off?
Where is the lock nut and washer located?

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Re: How to lockout msd 8580

Post  David Cole on May 3rd 2013, 10:52 am

tconnection wrote:Do the gear have to come off?
Where is the lock nut and washer located?
Gear doesn't need to come off. When you take the pin out the collar on the bottom of the aluminum part of the distributor the whole shaft will slide up until the gear touches the collar.

The lock nut is under the advance mechanism. These are boomerang shaped sliding weights under the rotor.
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Re: How to lockout msd 8580

Post  tconnection on May 3rd 2013, 10:14 pm

Ok i im catching on. Bare with me. So i lift the shaft up and turn it 180*, sit it down in place and screw the nut back on and do the weights and springs go back on?
Thanks

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Re: How to lockout msd 8580

Post  norm on May 3rd 2013, 10:52 pm

tconnection wrote:do the weights and springs go back on?
Thanks

They won't do anything anymore. May as well leave em off.
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Re: How to lockout msd 8580

Post  tconnection on May 3rd 2013, 11:20 pm

Sound good! I can handle this fix. Maybe it want be to hard on my starter till i can get a retard set up of some sort. Im firing off with a 6al and an little efi coil. it seems kinda hard to fire witch ofcourse i havent locked out to set timing at 30 or 32 and i havent set the idle mixture screws yet. I dont have my tach back from autometer yet. Hopefully tuesday. Cant read my rpm. Anyway, about what should it read at idle?
Thanks

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Re: How to lockout msd 8580

Post  69F100 on May 4th 2013, 12:23 am

tconnection wrote:Sound good! I can handle this fix. Maybe it want be to hard on my starter till i can get a retard set up of some sort. Im firing off with a 6al and an little efi coil. it seems kinda hard to fire witch ofcourse i havent locked out to set timing at 30 or 32 and i havent set the idle mixture screws yet. I dont have my tach back from autometer yet. Hopefully tuesday. Cant read my rpm. Anyway, about what should it read at idle?
Thanks

My 552 idles at 1000rpm anything lower it don't want to idle
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Re: How to lockout msd 8580

Post  tconnection on May 4th 2013, 10:53 pm

I locked it out. It was easy to do once i new what to do.
Thanks

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Re: How to lockout msd 8580

Post  DanH on May 5th 2013, 8:12 am

tconnection wrote:Sound good! I can handle this fix. Maybe it want be to hard on my starter till i can get a retard set up of some sort. Im firing off with a 6al and an little efi coil. it seems kinda hard to fire witch ofcourse i havent locked out to set timing at 30 or 32 and i havent set the idle mixture screws yet. I dont have my tach back from autometer yet. Hopefully tuesday. Cant read my rpm. Anyway, about what should it read at idle?
Thanks
locking out the advance isn't going to make starting any easier. good chance the opposite will happen

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Re: How to lockout msd 8580

Post  whatbumper on May 5th 2013, 11:04 am

Never really understood locked out timing unless you have a digital ignition to control timing curve or efi forward do the same.

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