MadModder

Gallery, Projects and General => How do I?? => Topic started by: speedibee on February 01, 2021, 07:44:26 AM

Title: electronic ignition cdi
Post by: speedibee on February 01, 2021, 07:44:26 AM
I have ordered an electronic ignition kit from hobbyking ,for the Webster engine I'm building , what i want to know if anyone has the answer is , can i mount the magnetic trigger on a steel flywheel .or will it confuse the signal ?
Title: Re: electronic ignition cdi
Post by: chipenter on February 01, 2021, 10:12:46 AM
I don't see why not my rev counter magnet is mounted on my lathe spindle , the flywheel is not magnetic is it?
Title: Re: electronic ignition cdi
Post by: speedibee on February 08, 2021, 06:26:15 AM
flywheel is going to either steel or cast iron
non magnetic

Title: Re: electronic ignition cdi
Post by: pycoed on February 09, 2021, 06:00:28 AM
I installed a rev counter for a Kubota diesel engine & fitted the magnet to the steel power steering pump pulley ( same size as the crank pulley, but MUCH easier access)  & it works fine. I glued the first one on, but the counter didn't work - dumbo didn't realise the pickup is pole sensitive  :bang:. Second one is just held by it's own magnetism & has been fine for the last 18 mths (isn't it amazing how these temporary bodges become permanent?)
Title: Re: electronic ignition cdi
Post by: Sea.dog on February 09, 2021, 07:22:46 PM
I have one a cheap Chinese tacho on my lathe. It worked well for a couple of weeks then stopped. After trying various things, including getting a spare pickup from the eBay seller. I discovered that turning the magnet over fixed the problem  :Doh: About 4 months ago it died again (after 7 years) and I've not yet tried to fix it.

My magnet is also held in place by the power of thought  :D
Title: Re: electronic ignition cdi
Post by: stevehuckss396 on February 21, 2021, 11:44:50 AM
Mount the magnet to, or in the cam gear. No need to make it spark twice as much as needed.