The Ford Barn

JimCaseSC · 07-22-2016, 10:16 AM

I decided to check the rotor to distributor body pins gap and found the horizontal gap to be about 1/8 inch and the vertical
to be about 3/16 inch. Help, any ideas on fixing this issue?
Pictures attached.

Russ/40 · 07-22-2016, 10:35 AM

Excuse an obvious question, is the rotor fully Seated? If so, I would suspect either an I'll fitting rotor, or, the points cam is shimmed too high with a spacer under it. Try another rotor, and if the problem continues, check for a washer under the cam. If no apparent cause, you could trim the rotor to sit deeper.

gweilbaker · 07-22-2016, 10:50 AM

Maybe the shaft is wrong with respect to the distributor being too high for the rotor?

Check for flashing in the rotor shaft cavity?

JimCaseSC · 07-22-2016, 01:02 PM

I have Nu rex electronic ignition and the cam has to be where it is located to trip the modul. I could shorten the extension for the rotor, but, if I lower it down I'll still have the 1/8 inch horizontal gap. The rotor is definitely seated and the distributor body is seated. No obvious evidence of flashing to cam screw and no washer under cam. The rotor looks new along with the dist, no evidence of carbon lines on rotor or dist body. I do not have another rotor but plan ordering one before altering anything.
Thanks for the insights and was hoping someone had experienced this before and had a solution. Keep the suggestions coming. I believe I will call Nu Rex back as I talked to a gentleman yesterday who was very knowledgeable and gave me some awesome information. After talking to him is when I noticed my issue.

1931 flamingo · 07-22-2016, 01:25 PM

And the problem is?? Does it run??
Paul in CT

JimCaseSC · 07-22-2016, 03:12 PM

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Yes, it runs but no power on grades and engine shutters at above about 20 mph. I was gonna set the gap to .025 inch. I know there may be other problems but thought to start here!!!!!

Brentwood Bob · 07-22-2016, 03:47 PM

The washer may be too thick, but try another rotor. The rotor has an irregular edge and looks like it has been modified.
Bob

msmaron · 07-22-2016, 04:05 PM

get and original distributor horn and original rotor and I bet you the problem will vanish.

Tom Wesenberg · 07-22-2016, 04:36 PM

I agree that rotor looks like it was messed with. At least get a new rotor, but it wouldn't hurt to have the distributor body also, even if it winds up as a spare.

Mike V. Florida · 07-22-2016, 11:05 PM

Quote:

Originally Posted by JimCaseSC

Yes, it runs but no power on grades and engine shutters at above about 20 mph. I was gonna set the gap to .025 inch. I know there may be other problems but thought to start here!!!!!

Yes the gap should be .025. As the other gave said, the rotor may not be seated fully, or the rotor was made wrong.

07-22-2016, 10:35 AM	#2
Russ/40 Senior Member Join Date: May 2010 Location: Santee, California Posts: 3,505	Re: Rotor to distributor body pin gap Excuse an obvious question, is the rotor fully Seated? If so, I would suspect either an I'll fitting rotor, or, the points cam is shimmed too high with a spacer under it. Try another rotor, and if the problem continues, check for a washer under the cam. If no apparent cause, you could trim the rotor to sit deeper.

07-22-2016, 10:50 AM	#3
gweilbaker Senior Member Join Date: May 2010 Location: Lindenhurst, IL Posts: 792	Re: Rotor to distributor body pin gap Maybe the shaft is wrong with respect to the distributor being too high for the rotor? Check for flashing in the rotor shaft cavity?

07-22-2016, 01:02 PM	#4
JimCaseSC Junior Member Join Date: Sep 2015 Location: York, SC Posts: 21	Re: Rotor to distributor body pin gap I have Nu rex electronic ignition and the cam has to be where it is located to trip the modul. I could shorten the extension for the rotor, but, if I lower it down I'll still have the 1/8 inch horizontal gap. The rotor is definitely seated and the distributor body is seated. No obvious evidence of flashing to cam screw and no washer under cam. The rotor looks new along with the dist, no evidence of carbon lines on rotor or dist body. I do not have another rotor but plan ordering one before altering anything. Thanks for the insights and was hoping someone had experienced this before and had a solution. Keep the suggestions coming. I believe I will call Nu Rex back as I talked to a gentleman yesterday who was very knowledgeable and gave me some awesome information. After talking to him is when I noticed my issue.

07-22-2016, 01:25 PM	#5
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,390	Re: Rotor to distributor body pin gap And the problem is?? Does it run?? Paul in CT

07-22-2016, 03:12 PM	#6
JimCaseSC Junior Member Join Date: Sep 2015 Location: York, SC Posts: 21	Re: Rotor to distributor body pin gap Sponsored Links (Register now to hide all advertisements) Yes, it runs but no power on grades and engine shutters at above about 20 mph. I was gonna set the gap to .025 inch. I know there may be other problems but thought to start here!!!!!

07-22-2016, 03:47 PM	#7
Brentwood Bob Senior Member Join Date: May 2010 Location: brentwood, ca Posts: 4,249	Re: Rotor to distributor body pin gap The washer may be too thick, but try another rotor. The rotor has an irregular edge and looks like it has been modified. Bob

07-22-2016, 04:05 PM	#8
msmaron Senior Member Join Date: May 2010 Location: Wauconda, IL Posts: 3,600	Re: Rotor to distributor body pin gap get and original distributor horn and original rotor and I bet you the problem will vanish. __________________ Mark Maron Ill., Region MARC & MAFCA MARC JSC Member MAFFI Trustee National Facebook Admin. https://www.facebook.com/groups/MARC.group/ A7191-Sport Coupe 29 Roadster 29-Town Sedan 29-Original Special Coupe

07-22-2016, 04:36 PM	#9
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: Rotor to distributor body pin gap I agree that rotor looks like it was messed with. At least get a new rotor, but it wouldn't hurt to have the distributor body also, even if it winds up as a spare.