Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Mon Apr 15, 2013 7:07 pm Post subject:
Have you seen any explanation of how to modify the rotor Wes (or anyone else that has done it)? The threads that I read stopped short of this. She is running a lot smoother already, but getting it done right would be great!
Also, while I was in there, I discovered that the weights were sticky, the shaft was a little sticky (from varnish or old oil) and the points were bad. And when I pulled the coil out there was oil in the housing, so it might have a hole in it. I replaced it with a spare that I had. _________________ Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
In Erik's earliest explanation he described a window mod and I don't seem to be able to find it yet. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Tue Apr 16, 2013 7:03 am Post subject:
Hi Wes,
I read back through the pages I had bookmarked but also didn't find it. So I emailed Erik and asked if he could explain. I will update here if he can remember (and I successfully complete the mod). _________________ Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Tue Apr 16, 2013 8:50 am Post subject:
Here's the video that I recorded. It is NOT a professional video. It does not show everything - just the main points of the conversion. It was shot with my phone, but is ok.
http://www.youtube.com/watch?v=t4XAcYvVJQs _________________ Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Tue Apr 16, 2013 11:40 am Post subject:
I got my starter fixed and set my timing. She runs a lot smoother, but still not perfect. I think I will need to cut the rotor if I can find out how. She also has more power, but that is more than likely due to the points being worn out/not set right. She runs good enough for now, but like Wes said - will run better with the rotor cut right.
I'll keep this post (and my video) alive and updated until we all get a good understanding about the conversion. _________________ Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
Joined: Jun 14, 2006 Posts: 226 Location: Wijnegem Belgium Europe
Posted: Tue Apr 16, 2013 12:22 pm Post subject:
Here are a few pics from july 2007, the module still works 6 years !ine:
first pic, testing ( sorry for using temprarely tape..)
second pic, installed !
After instaliling the kit, i never touched anything !
Every year new engineoil, and lubricating all moving parts, thats all.
Erik, a hapy jeeper _________________ 1942 GPW 71336 my son's jeep restored now
1951 M38 MC11891
1953 VW beetle (genuine german Käfer )
1957 fantastic wife
Erik,
Then you never had to cut any material from the rotor skirt area?
The new slot in the housing solved all issues with the opposite rotor rotation between the M151 and M38? _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Mar 13, 2006 Posts: 1079 Location: Richburg, SC
Posted: Tue Apr 16, 2013 3:57 pm Post subject:
I think they said the early version was a drop in - no mods needed _________________ Matt
1953 M38a1
1964 USMC M38a1
'51 USMC M100 trailer, '54 M100 trailer, '90 M101a1 trailer
Http://wilfreeman.wordpress.com (M38a1 build blog)
http://m38a1usmc.wordpress.com (USMC M38a1 rebuild blog)
Bill,
The early Prestolite unit comes with a new cam/flyweight mount so there's should be nothing else to do. I have heard it mentioned over the years that it was a painless switch but never heard anyone describe the switch. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Apr 17, 2005 Posts: 891 Location: New Hampshire
Posted: Tue Apr 16, 2013 5:58 pm Post subject:
The only think I really noticed on it is the part the rotor goes on, it has the rotor point in a different direction. I can't remember how far different at this time.
The cam assy upper right goes on the drive shaft plate two ways.
In this photo the flat drive tip at the bottom of each distributor is oriented the same way. Thus the rotor flat at the top of the shats face the same way. The cam flats are 45 degrees away from each other. So this may mean you may have to re-orient the cam assy in the M38 distributor as Erik did with the Swiss controls kit. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Jun 14, 2006 Posts: 226 Location: Wijnegem Belgium Europe
Posted: Wed Apr 17, 2013 12:35 am Post subject:
I only made a small 'cut out' in the distributiorhousing, no changes at the rotor however. The distributor in the m38 turns counterclock, in the m151 clockwise, as i read in prevouis posts on the M151 forums. Therefore I had to realign the sensor/solidstate unit 45 degrees to use the exact gap in the rotor to fire the exact moment.
Erik _________________ 1942 GPW 71336 my son's jeep restored now
1951 M38 MC11891
1953 VW beetle (genuine german Käfer )
1957 fantastic wife
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