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Dave Krugler, got a coil question for you

August 24 2012 at 5:44 PM		Paul  (no login)
Are you running a ballast resistor on your Skiff? Don't have one on mine?

Looks like I have an old Prestolite 200691

Just spent an enjoyable few hours working on my distributor, wrestling with some replacement parts that "almost" fit. More on that later. PS...I hate autocorrect! happy.gif

Best

Paul



iPhone


    
This message has been edited by FEfinaticP on Aug 24, 2012 5:46 PM


 
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AuthorReply

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No ballast resistor

August 25 2012, 1:44 PM 

Hi Paul; Sorry I'm so slow to respond but no, I am not running a ballast resistor. There is none shown on the Chris Craft wiring diagram either. For sure we need to be aware of this when selecting a replacement coil to make sure the one we pick has a primary winding capable of handling up to 13.8vdc which is pretty typical WOT alternator output.

Dave

 
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Paul
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Thanks!

August 25 2012, 6:12 PM 


Hi Dave. Thanks for the note. Got a chance to nose around a bit and found some info on that coil number, see page 3.


http://www.marine-discounter.de/katalog/sierra/inboard/chrysler_inboard-web.pdf?xaf26a=8c8c52825e2e80562dbe9518bdc50a3f

Regards

Paul

 
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Paul
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Probably why I had burned ignition points.

August 27 2012, 9:55 AM 

Hi Dave,

The boat seems to have the original coil, or a replacement same as the original. Dumb me, I installed a spare coil next to it so I could easily swap from one to the other in the event I needed to. So the second coil had an external resistor attached but I never used it because the original coil had no resister (it had an internal resister, either by device or design of windings, etc).

Therefor running the non resisted coil seemed to perform well UNTIL things finally got chewed up. It was pretty evident my voltage was too high. Look at this, I'd say they got a little warm. happy.gif Boat ran good, however, but not for long.

[linked image]

[linked image]

regards,

Paul

 
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(no login)

Ouch- hot stuff

August 27 2012, 10:44 AM 

Wow- those do look like crispy critters Paul. The other component that comes into play is the condenser which is supposed to keep the points arcing to a minimum. Arcing relates directly to contact burning and has some affect on timing consistency.

In conjunction with the original 12v coil here is my list of expendable ignition parts and sources. I swear by Standard Motor Products Blue Streak points and condenser for our IBM 4115 distributors. The points are extra heavy duty copper clad with the copper conductor strap for the moving point and the adjustment holes work with our distributors without filing them to enlarge them.

Points & condenser (Blue Streak)

Summit points part number SMP-AL5677XM


http://www.summitracing.com/parts/SMP-AL5677XM/



or Standard Motor part number AL5677XM at NAPA stores.



Summit condenser part number SMP-AL111


http://www.summitracing.com/parts/SMP-AL111/

or Standard motor part number AL111 at the local NAPA store.

Champion spark plugs 102-RJ6C Summit Racing

http://www.summitracing.com/parts/CPN-102



Mallory plug wires
Mallory Marine Products Plug Wire Set 9-28046



Mallory distributor cap MAL9-29422

http://www.iboats.com/Mallory-Distributor-Cap-9-29422/dm/view_id.365536



Sierra distributor cap 18-5391



Mallory rotor 9-29213

http://www.iboats.com/mall/partfinder/?cart_id=760101767&gd_grid_id=791&gd_poid=355800&gd_row=7&session_id=589973917



Sierra rotor 18-5429

http://www.iboats.com/mall/partfinder/?cart_id=760101767&gd_grid_id=791&gd_poid=111741&gd_row=7&session_id=589973917


I also have sources for correct complete carburetor and fuel pump kits.

Dave

 
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