IGN Module

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Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

IGN Module

Post by Daryl »

Since Manifold asked about using this, a copy of an Atom Ign module & if it would work on the Wipac Ign modules. As the condeser is integral to the coil unit. Tryed the unit on a Seagull with Wipac ignition disconected the points & fitted the unit & it works fine. Picture is of the original experimental unit i built to work out what the component values should be.
IGN Mod2.JPG
IGN Mod.JPG
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Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Some pics of an original module & what was in it & a home made module.
IGN Mod3.JPG
IGN Mod4.JPG
IGN Mod5.JPG
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Daryl
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Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Few more pics The parts are realy cheap compared to buying the original, as here in Australia when you could buy them were $29 you can purchase enough parts to build 10 for$25.70. The switching transistor needs to be insulated from the heatsink & the heat sink atached to a coolish part of the motor.
IGN Mod7.JPG
IGN Mod8.JPG
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Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Pictures of an assembled unit before seting in resin, always test before seting in resin.(not best quality pics)
IGN Mod10.JPG
IGN Mod11.JPG
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The Tinker
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Re: IGN Module

Post by The Tinker »

Not having a heat sink could be why they can be a little unreliable after running for a bit of time.
Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

The original module has a small metal plate that the module is screwed to as a heat sink & is suposed to be bolted to a cool part of any engine it is fitted to. They wont last long with out it. The original switching transistor has only a thin layer of plastic to insulate it from the metal plate. The instructions also tell which side to screw the plate to the plastic module.
Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Wil post the orig instructions tomorrow.
ATOM IGN mod.JPG
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charlesp
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Re: IGN Module

Post by charlesp »

Just a thought..

..if this works as hoped, then maybe you could do a brief post for the guide; what it replaces, wht are the benefits, how does it work, and the instructions for building a unit. All laid out so a beginner can make and fit one.
Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Hi Charles will do a series of pics & instructions on building one from scratch, probably take a couple of days to get to. Will post orig ATOM Ign instructions here.
Atom INST.JPG
IGN Mod2.JPG
Atom INST3.JPG
Atom INST4.JPG
Atom INST5.JPG
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Daryl
Posts: 261
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Location: South Australia

Re: IGN Module

Post by Daryl »

The orig printing is very small. & beter pics of an assembled module before sealing.
Atom INST2.JPG
Atom INST6.JPG
IGN Mod11.JPG
IGN Mod12.JPG
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Charles uk
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Re: IGN Module

Post by Charles uk »

Before everyone goes wild & fits an Atom clone, shouldn't we ensure that they are fit for purpose before we endorse them, a 15 minute run in the test tank will not tell us that the components used are man enough for the job.

After all, we know there are questions about the factory fitted items, it seems that during the first 50 years of use as many as 1% of them are failing to operate perfectly, after years of poor or no maintenance!

Seriously there are safety considerations that arise here, what happens when you try to start your Seagull without connecting the HT lead to the spark plug, there's a use for the cordless drill.

Can someone test one of these for 10 or 20 hours & let us know how they get on?
Make it idiot proof and someone will make a better idiot.
Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

A couple of points, One a 1% failure rate is nothing i would get excited about on electronic modules. Also trying to start or crank a motor with the plug lead off is a sure way of damaging a coil due to internal flash overs never mind the module. Since most Seagulls are over 50Yrs old I would suspect the very old coils are the most likely part to fail. So if people are woried about safety perhaps they shouldnt put to sea using a Seagull. Certainly hasnt put me off using a Seagull. Some of the failure rate may also be to poor heat sinking of the unit, this is why ive used a larger heatsink.
Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Posting pics of assembly for the adventurous. 1st pic is the parts, 2nd is Q1 & parts,3rd testing for shorts to heatsink,4th fittingQ2 to Q1. For this job you do need a small tip soldering iron & thin resincored solder. try to keep the soldering time to a minimum (3-4 secs) to not over heat the components as the leads are very short. You do need to be reasonably competent at soldering. 5th pic is fittingR1.
MODULE.JPG
MODULE2.JPG
MODULE3.JPG
MODULE4.JPG
MODULE5.JPG
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Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Pic 6 fittingR2, 7 fitting R3, 8 fitting C1, 9 fitting the leads ( for future reference ive fitted Brown to the collector & Blue to the emmiter of Q1) TEST module at this point before comiting to resin. 10 ready for epoxy ( i used 5min Araldite)
MODULE6.JPG
MODULE7.JPG
MODULE8.JPG
MODULE9.JPG
Module10.JPG
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Daryl
Posts: 261
Joined: Tue Jun 02, 2009 12:56 pm
Location: South Australia

Re: IGN Module

Post by Daryl »

Pic 11 & 12 are the finished article. For a Wipac coil BROWN goes to coil where points were, BLUE goes to ground. The Villiers coil is rev polarity BLUE goes were the points were conected to the coil, BROWN goes to the ground. Since they are home made there is no gaurante of workmanship or reliability.
MODULE11.JPG
MODULE12.JPG
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