59' Panhead Frame

[sieber60]

I'm looking at a 59' Panhead frame and looking for any info that can help me identify if it is a Harley frame or reproduction, Casting numbers or other identifiers that would or should be there.

Thanks
67 Shovel

[1950Panhead]

47591-35 left side dash mount
DIF31 or DIF32 right side dash mount
Top motor mount has date code 8F to 9F for 59

[sieber60]

Perfect.. Thank you!

[sieber60]

What about MM59 on the upper motor mount?

[1950Panhead]

That would be unusual, post a photo.

[sieber60]

Having trouble getting a picture since he is 3.5 hours away from me. His pictures are blurry, I may get to see the frame this week, if so I will post.

[Speeding Big Twin]

sieber60, for 1959 model H-D Pan steering heads at least two forging numbers were used. One was 47591-35 as mentioned above. The other was XE-35F.

For a 1959 model steering head at least four die numbers could apply. Mentioned above are 31 and 32. The other two possibilities are 29 and 30.

Lower left rear forging should have 47653-58 which was used for 1958 thru about mid-1970.
Lower R-H rear forging should have 47651-58 which was used for 1958–early-1973.

Both upper rear forgings had a certain forging number for 1958–64 but it was done in at least two ways: 476 45 58 and 47645-58. Notice the spacing. Notice the first version had no hyphen. For a 59 model frame I imagine the first style would apply.

There are also other things to check so I look forward to the photos.
Eric

[sieber60]

sieber60, for 1959 model H-D Pan steering heads at least two forging numbers were used. One was 47591-35 as mentioned above. The other was XE-35F.

For a 1959 model steering head at least four die numbers could apply. Mentioned above are 31 and 32. The other two possibilities are 29 and 30.

Lower left rear forging should have 47653-58 which was used for 1958 thru about mid-1970.
Lower R-H rear forging should have 47651-58 which was used for 1958–early-1973.

Both upper rear forgings had a certain forging number for 1958–64 but it was done in at least two ways: 476 45 58 and 47645-58. Notice the spacing. Notice the first version had no hyphen. For a 59 model frame I imagine the first style would apply.

There are also other things to check so I look forward to the photos.
Eric

So got my hands on the frame.

Left side of dash mount 47591-354
Right side dash mount - DIF31
Upper motor mount- B9

[Speeding Big Twin]

So got my hands on the frame.

Left side of dash mount 47591-354
Right side dash mount - DIF31
Upper motor mount- B9

47591-354?

Or is it 47591-35A?

Or is it 47591-35?

And what happened to MM59? Please post photos of all markings and photos showing both sides of the entire frame.
Eric

[sieber60]

Here are some pictures, unfortunately my camera is cheap so the numbers are hard to make out.

The MM59 was apparently a different frame. He had another frame that looked like the upper motor mount had been altered.


P1010022.jpgP1010023 (1).jpgP1010021 (1).jpgP1010024 (1).jpgP1010016 (1).jpg

[sieber60]

[ATTACH=CONFIG]26560[/ATTACH][ATTACH=CONFIG]26561[/ATTACH][ATTACH=CONFIG]26562[/ATTACH][ATTACH=CONFIG]26563[/ATTACH][ATTACH=CONFIG]26560[/ATTACH][attach=config]26561[

[Speeding Big Twin]

I can’t read the date code but if it is B9 and authentic then it indicates the frame was made in Feb 59, given the style of frame.

I can’t read the other markings either but the forging number on the steering head should not be 47591-354; instead it should be 47591-35.

Notice at lower rear on the R-H side there is a tube-like extension. It accommodates a Harley jack.

On the left side, examine the rear downtube where it meets the lower forging because often the tubing cracks.





To identify the swingarm, below is a link to a thread I started on the Panhead and Flathead forum in 2016.
Eric


http://www.hydra-glide.com/phpBB3/vi...hp?f=5&t=15801

[sieber60]

My mistake on the the steering head.. it is 47591-35 and the upper rear casting number is 476 45 58

[sieber60]

Erci,
Thank you for the link... here's one for you. I was trying to date a swingarm that I have and have a question. Here are the casting numbers.
Bearing Pivot- 47556 58 ME?? AE??
Outside left - upside down 70 NO RIB?? This is the big question.
outside Right Side - 470606-58 7
Inside Left Side 47614-58 A3

What's your thoughts?

[Speeding Big Twin]

You’re welcome. Officially no ribs outside the left clip until 1963 models. (I have photos of a few late-62s with them but I do not know if the swingarms are original to the bikes.)

On the pivot bolt housing, forging number 47556 58 is the only one I’m aware of and AFAIK it was used for 1958–72. (Some think it is 47558 58 but I disagree.) As for the letters, I do not know what they are. I have plenty of photos of that hallmark but none are clear enough to be certain about the letters. There was at least one more hallmark later on but I can’t be certain about it either.

Your swingarm sounds like late-1959 or 1960, given the following:
1. Inside the left clip is forging number 47614-58, hallmark A and die number 3
2. Outside the left clip is run number 70
3. Outside the R-H clip is forging number 47606-58 and die number 7. (You said 470606 but I think it will be 47606.)

However, I’d like to see photos to be certain about the style of left clip.
And I’m also intrigued by die number 7 on the R-H clip. Can you post photos of both clips please.
Eric