Ignition module compatability

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bazookajoe
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Ignition module compatability

Unread post by bazookajoe » January 20th, 2020, 7:47 pm

Are the Swiss module and Prestolite module interchangeable in both distributor types, that is the type with the cam rubbing block for breaker points and the style designed for the swiss module???

Hambone
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Re: Ignition module compatability

Unread post by Hambone » January 20th, 2020, 9:26 pm

The swiss module uses the std cam, the prestolite kit came with a different cam to swap out, the prestolite uses the original rotor, I think I'm right, if not, someone will chime in.

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muttguru
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Re: Ignition module compatability

Unread post by muttguru » January 21st, 2020, 7:03 am

Hambone is correct. You can't mix-n-match between the two types of SSI kits.

If you need photos of each type of kit, let me know.
Ken
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Ken

Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

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Note for 2023..... Ken..."Less Stress - More Exercise!"

bazookajoe
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Re: Ignition module compatability

Unread post by bazookajoe » January 21st, 2020, 11:16 am

Is the swiss module compatible with both rotor cams,as the trigger wheel is the pick up for the module.On the Prestolite module,the pickup is the rotor cam. My understanding from looking at manual pics is that the prestolite module only works with the fluted cam rotor,but the Swiss module works with either cam rotor???? correct?

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muttguru
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Re: Ignition module compatability

Unread post by muttguru » January 21st, 2020, 12:22 pm

Here's the Prestolite kit. It comes with a replacement for the original (points type) rotor stem but it uses the ORIGINAL-type of rotor arm. Note also that the Prestolite kit has TWO wires. It also comes with a non-magnetic (plastic) feeler gauge for setting the air gap.

Image


Next up is the Swiss Controls kit. This one uses the original (points type) rotor stem but it uses the big disk-shaped rotor arm. Note that the Swiss Control unit has THREE wires. There is no requirement for a gap gauge on this setup.

Image

Neither kit will work unless you use the correct combination of rotor stem and rotor arm.

Ken
Kind regards....
Ken

Always wanted - Details and pictures of M416 Trailer data plates & M151 data plates & body-tags for my research. Thanks!

Contact address - - muttguru@aol.com

Note for 2023..... Ken..."Less Stress - More Exercise!"

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Lou
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Re: Ignition module compatability

Unread post by Lou » February 7th, 2020, 2:59 pm

I hope no one has an issue with me placing my post in here, it is relevant. I run the prestolite ignition module in the mutt (2 wire) pictured above. I have been reading a lot of those modules are failing as time goes on. One of my spares has suffered from all the potting compound leaking out all over the place.

I am a Electronics technician and want to disassemble one of these that has failed in the hopes of finding out why they fail. My curiosity stems whether they fail from moisture shorting out the electronics or simply dried up electrolytic capacitors or some other component failure. I want to find out if those of us that are using the prestolite ignition module are sitting on a ticking time bomb just waiting to leave us stranded somewhere.

If you have a burned out prestolite module or one that has all the potting leaked out I would like to obtain that from you. I will pay for your shipping expenses. In return I will post photos and technical information learned from the disassembly of the module here. I think this would be worth pursuing and we can all learn something from it.

And if anyone can ever locate a electronic schematic of the inside of the module, this would be very helpful. So far I have been unable to locate one.

Thanks in advance, Louie
Take Care,
Louie
M151A2,
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MVPA 27368
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m3a1
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Re: Ignition module compatability

Unread post by m3a1 » February 7th, 2020, 6:39 pm

I posted a reply to you on the 503 where I am GPW1263.

Cheers,
TJ

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rickf
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Re: Ignition module compatability

Unread post by rickf » February 7th, 2020, 7:13 pm

Lou, this came up years ago and the main problem seemed to be that once the potting material went away the extremely close proximity of the components left them in a position to short out against one another. It wasn't a matter of a component failure as much as it was just touching another component. If they were caught and repotted they were fine.
1964 M151A1
1984 M1008
1967 M416
04/1952 M100
12/1952 M100- Departed
AN/TSQ-114A Trailblazer- Gone

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m75
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Re: Ignition module compatability

Unread post by m75 » February 9th, 2020, 9:49 am

Lou, how about tackling the infamous 24 volt coil as well?
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Lou
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Re: Ignition module compatability

Unread post by Lou » February 10th, 2020, 9:00 pm

m75 wrote:
February 9th, 2020, 9:49 am
Lou, how about tackling the infamous 24 volt coil as well?
Not much I can do with an oil filled can with winding's in it. Never took one apart and doubt it could be resealed. How often have you folks had the REAL military coil fail? I will not even comment on the cheap Chinese coil. Just save your money and buy the real one!
Take Care,
Louie
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KA2PFL,
MVPA 27368
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mike_v
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Re: Ignition module compatability

Unread post by mike_v » February 29th, 2020, 2:29 am

Lou wrote:
February 10th, 2020, 9:00 pm
m75 wrote:
February 9th, 2020, 9:49 am
Lou, how about tackling the infamous 24 volt coil as well?
Not much I can do with an oil filled can with winding's in it. Never took one apart and doubt it could be resealed. How often have you folks had the REAL military coil fail? I will not even comment on the cheap Chinese coil. Just save your money and buy the real one!
I'd like to Lou, but those coils are $200 and up... and if you can find one...

I just bought a china special from Eriks Military Surplus for $44 just to have on-hand for a "spare". Hope I don't need it... :cry:
1974 M151A2 w/ ROPS, heater, radios and M416 trailer

1986 M925 w/w 5 ton

2x M1008 CUCVs
3x M1009 CUCVs + 1x CUCV II
1x M1010 + 1x M1031 CUCV

1990 M101A2 .75 ton trailer (Kasel)
1992 M101A3 .75 ton trailer (Kasel)
1992 M149A2 "Water Buffalo" (Aero)
1995 M105A3 1.5 ton trailer (Pribbs)
2005 M1082 LMTV 2.5 ton trailer (Stewart & Stevenson)

Mark
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Re: Ignition module compatability

Unread post by Mark » February 29th, 2020, 2:54 am

Ya, I paid $275+ for a coil from a vender in the USA a while ago, it didn't last long, oh for the days when NOS coil cost $10?
mark


1968 m274A5
1960 m151
1981 m151A2
1964 m416
1971 m416

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