The Ford Barn

saltman · 07-21-2013, 05:47 PM

Just tried to mount a new set of front bumper arms for my 28 Coupe. After installation, I discovered that the right arm is not only about 2 1/2" bent too far out but, the front holes are too small for the front clamps. I have measured the bend of the arm with regard to my frame, the bumper and the other arm many times and come up with the same result. I measured my old clamp bolt diameters and they appear to be 9/16". The holes on the new arms appear to be 1/2". Can someone verify or deny that my old clamps or too big or the arm holes are too small on the new arms? Is there a variance between years as far as clamp bolt/arm hole sizes?

SALTMAN

PS: 'Every time' .. I try to install a new part on my Model A, its like trying to stick a large square peg into a much smaller round hole... nothing ever seems to work...!

1931 flamingo · 07-21-2013, 06:12 PM

No offense, but is it on right?? And not reversed??
Paul in CT

jw hash · 07-21-2013, 09:20 PM

you are correct they are 9/16" and if you drill it out go one drill size over.

SeaSlugs · 07-21-2013, 09:30 PM

are these bumper arms repro new or new to you origionals?

yea they should curve upward a tad

Chuck Sea/Tac · 07-21-2013, 10:50 PM

I'm not sure what the alloy is, but they don't like to be bent, even with heat, which probably isn't a good idea. I ended up finding some good originals, and stopped wasting my time getting them to "match".

Timberbeast · 07-27-2013, 05:00 PM

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Quote:

Originally Posted by Chuck Sea/Tac

I'm not sure what the alloy is, but they don't like to be bent, even with heat, which probably isn't a good idea. I ended up finding some good originals, and stopped wasting my time getting them to "match".

Could it possibly you have a 30/31 arm on one side, they curve more to match the arched contour of the later bumper.

scott30 · 07-27-2013, 09:28 PM

Check to see if the front frame horns are bent, twisted etc. This will cause the arms to be at a strange angle.

07-21-2013, 05:47 PM	#1
saltman Member Join Date: Mar 2011 Posts: 82	Front bumper arm installation Just tried to mount a new set of front bumper arms for my 28 Coupe. After installation, I discovered that the right arm is not only about 2 1/2" bent too far out but, the front holes are too small for the front clamps. I have measured the bend of the arm with regard to my frame, the bumper and the other arm many times and come up with the same result. I measured my old clamp bolt diameters and they appear to be 9/16". The holes on the new arms appear to be 1/2". Can someone verify or deny that my old clamps or too big or the arm holes are too small on the new arms? Is there a variance between years as far as clamp bolt/arm hole sizes? SALTMAN PS: 'Every time' .. I try to install a new part on my Model A, its like trying to stick a large square peg into a much smaller round hole... nothing ever seems to work...!

07-21-2013, 06:12 PM	#2
1931 flamingo Senior Member Join Date: May 2010 Location: new britain,ct 06052 Posts: 9,428	Re: Front bumper arm installation No offense, but is it on right?? And not reversed?? Paul in CT

07-21-2013, 09:20 PM	#3
jw hash Senior Member Join Date: May 2010 Location: Auburn Washington Posts: 2,696	Re: Front bumper arm installation you are correct they are 9/16" and if you drill it out go one drill size over.

07-21-2013, 09:30 PM	#4
SeaSlugs Senior Member Join Date: May 2010 Location: Central, IL Posts: 3,968	Re: Front bumper arm installation are these bumper arms repro new or new to you origionals? yea they should curve upward a tad __________________ 1929 Model AA - Need long splash aprons!

07-21-2013, 10:50 PM	#5
Chuck Sea/Tac Senior Member Join Date: May 2010 Location: Between Seattle & Tacoma Posts: 2,436	Re: Front bumper arm installation I'm not sure what the alloy is, but they don't like to be bent, even with heat, which probably isn't a good idea. I ended up finding some good originals, and stopped wasting my time getting them to "match".

07-27-2013, 09:28 PM	#7
scott30 Junior Member Join Date: May 2010 Posts: 15	Re: Front bumper arm installation Check to see if the front frame horns are bent, twisted etc. This will cause the arms to be at a strange angle.