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willysmjeeps.com :: View topic - Ignition Issue
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Ignition Issue

 
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Restomod
Member


Joined: Jun 23, 2017
Posts: 16

PostPosted: Sun Oct 08, 2017 12:21 pm    Post subject: Ignition Issue Reply with quote

My M38a1 will not start.
No spark at spark plugs.

Removed distributor cover everything looks OK.
Points open/close when motor cranks and points not corroded.
Distributor contacts look OK.
Have 24 volts at entering wire at coil connection.
Have 24 volts at center connection of coil.
Have continuity from spring to center point of distributor.
Also have continuity from leaving coil wiring connection thru points.

Is there any way to check the coil and condenser?

Any other ideas of what may be wrong?
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4x4M38
Member


Joined: May 30, 2014
Posts: 2379
Location: Texas Hill Country

PostPosted: Sun Oct 08, 2017 12:39 pm    Post subject: Reply with quote

See Pages 82 and 83 of your TM9-8012.

If you don't have a copy they are free here to download
at the left above.

Take care,
_________________
Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php
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Restomod
Member


Joined: Jun 23, 2017
Posts: 16

PostPosted: Sun Oct 08, 2017 6:16 pm    Post subject: Reply with quote

In the manual it gives specs for the condenser, but not the coil.

It notes to test the coil, replace it with known good one to perform test.
That's a little pricey.

Anyone know what the coil primary & secondary specs are?
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wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 12889
Location: Wisconsin

PostPosted: Sun Oct 08, 2017 7:56 pm    Post subject: Reply with quote

Look in my photo album under Ignition System

http://www.willysmjeeps.com/v2/modules.php?set_albumName=album119&op=modload&name=gallery&file=index&include=view_album.php

Then click on Distributor

http://www.willysmjeeps.com/v2/modules.php?set_albumName=album121&op=modload&name=gallery&file=index&include=view_album.php

You'll find the how to and the spec sheet there.
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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Restomod
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Joined: Jun 23, 2017
Posts: 16

PostPosted: Mon Oct 09, 2017 1:53 pm    Post subject: Reply with quote

This info is great!

Thanks
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Restomod
Member


Joined: Jun 23, 2017
Posts: 16

PostPosted: Wed Oct 18, 2017 12:30 pm    Post subject: Reply with quote

The coil tested out to be bad.
Couldn't figure out exactly how to test microfarid's on the condenser.
So since condenser was fairly cheap, decided to replace it.

Out of curiosity, what do you use to read microfarid's ?

Thanks again.
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wesk
Site Administrator
Site Administrator


Joined: Apr 04, 2005
Posts: 12889
Location: Wisconsin

PostPosted: Wed Oct 18, 2017 12:36 pm    Post subject: Reply with quote

https://www.youtube.com/watch?v=TFa6JfVu3B4

https://www.wikihow.com/Test-a-Capacitor
_________________
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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