1947 Panhead

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fourthgear
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1947 Panhead

#1

Post by fourthgear » Fri Feb 16, 2007 5:36 pm

I have a buddy in Ohio who looked at another 1947 Panhead thats for sale . Its strange that thats three including mine that have come to light . You can say what you will about there authenticity ,but now I think you would have to prove they don't exist or never did to me . I always thought it was fishy, about mine , but I believe they are out there and you would have to prove beyond a doubt that they have bad numbers or were not made to me. My belly # s start with 147 and match and shes has 47FLSer. #.
If its still for sale its in the Lorain /Elyria area ( Lorain journal or Elyria Chronicle Telegram news paper.
Just some thing to start a you-all a thinking and Panhead you may have to start you Panhead register a little lower in years.



Skip
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Re: 1947 Panhead

#2

Post by Skip » Fri Feb 16, 2007 9:06 pm

I believe I read somewhere several years ago...and it may have been here...that HD had 3 1947 Panheads at the 1948 Detroit auto show...they were Pans and had the 47F or E serial numbers...Never saw one...heard the myth...don't believe that anyone in their right mind would ever part with one if they do exist...could they just be Knucks witrh Pan tops ends??? Skip

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Re: 1947 Panhead

#3

Post by Cotten » Sat Feb 17, 2007 2:01 am

Photo documentation of all three would be the first step.

...Cotten

fourthgear
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Re: 1947 Panhead

#4

Post by fourthgear » Mon Feb 19, 2007 1:31 pm

skip
There were four made for the July ,1947 trade show in Detroit. No idea what the designation were of them , my cases on the inside say 148 and they are not Knuck cases . The cases & fly wheels are the only thing thats that old on my Pan , all the rest is diff. year parts , 52 heads ,54 tranny etc.
I don't have any photos of this case coming off the line or any thing like that ,nor do I believe you could trace any HD back that far unless you or some one you knew were the only owners of said HD. I have had this titled in two states in the last ten years and it is titled as a 1947 Harley Davidson , so that's what is and if some one can prove other wise , I will stand corrected. I do not care what or when or what ever , shes a Panhead and thats all that matters to me.
It was hard for my buddy to even hook up with this guy to look at it and I don't know if he has had any other contact with him on it .

Canuck
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Re: 1947 Panhead

#5

Post by Canuck » Fri Dec 25, 2009 3:16 am

I am a new member and hope you don't mind me joining in. I have a 1947 FL Panhead. I just emailed HD to see if they could get me more information about my 47 Pan (47FLXXXX). They wanted a picture of the engine numbers and what the numbers are on the bottom of the engine. I sent them the engine numbers which match the title but there are no numbers on the bottom of the engine. I removed the skid plate and cleaned it but no trace of any numbers? Do your bikes have a number on the bottom of the engine? Apparently HD needs those numbers before they can trace down the information on the bike.
I usually get "You mean a 1948 Pan" when I tell people that my Pans' a 1947 and end up showing them my registration. I just figured the bike was just an early 48 sold in 47 but I would still like to get some back ground info from HD.

Thanks,
Canuck

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Re: 1947 Panhead

#6

Post by Sir_Rat » Fri Dec 25, 2009 5:46 pm

A buddy of mine claims to have had a "66 panhead. I onced owned a '66 camaro. Who's to say the factory never made as '47 pan?

Canuck
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Re: 1947 Panhead

#7

Post by Canuck » Fri Dec 25, 2009 6:40 pm

What worries me is that my engine numbers match my title but it looks like the belly numbers have been ground off which leaves me to wonder if this motor is a little warm or ? Hoping there is an other reason.

Canuck
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Re: 1947 Panhead

#8

Post by Canuck » Sat Dec 26, 2009 2:35 am

Not sure if this will help at all but I just found the number "7" on the top of the back motor mounts on each side.

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Re: 1947 Panhead

#9

Post by james » Sat Dec 26, 2009 2:46 am

My 52 has the number "7" stamped on each case side of the rear engine mount. What does that mean?
I sure some where down the line they made a few "pre 48 panheads",I think it would be cool to have one of them.
jim

Canuck
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Re: 1947 Panhead

#10

Post by Canuck » Sat Dec 26, 2009 2:58 am

Thanks for the response about the number 7. Still concerned about not having any belly numbers. By the way, Merry Christmas.

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Re: 1947 Panhead

#11

Post by Bosheff » Sat Dec 26, 2009 4:13 am

The fact that it doesn't have any belly #'s tells ya somthin ain't right. Now all you gotta do is figure out what someone did to these cases before you got em. I'd bet these things been tattoed. Putting a pan topend on a knuckle bottom is a whole bunch more involved than putting a shovel top on a pan bottom....bosheff

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Re: 1947 Panhead

#12

Post by Bigincher » Sun Dec 27, 2009 12:45 am

Putting a pan top end on a kuckle bottom isn't all that tough. I happen to have one. Only two issues; the internal passage ways in the panhead cylinders must be drilled into and tapped for an oil line fitting, and a 'T' oil line fabricated for oil feed. This oil line will connect to the oil supply fitting in the knuck timing cover.
img3872ew.jpg
The other issue is that a panhead cam must be run, due to the valve train geometry being different than a knuck. The panhead cam is shorter, I believe, so therefore, the rear intake tappet roller (innermost cam lobe) does not run fully on the cam lobe. Perhaps this can be corrected by running knucklhead lifter blocks (or maybe I've got knuck blocks and need panhead blocks?) but I'm not enough of a motorhead to really know the answer to that. But I do know that I need to check the condition of the rear intake tappet roller bearings on a regular basis.

I guess we all know that a knucklehead motor in a panhead frame requires the use of 3/8" shims under the front motor mounts, too.

I've owned this motorcycle for 35 years, and it's never been an issue. It's a bastard, yeah, but it runs great.

Sorry if this is too far off topic.
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Bosheff
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Re: 1947 Panhead

#13

Post by Bosheff » Sun Dec 27, 2009 3:06 am

I agree that the rocker arm ratio is different from a knuck to a pan, and also the oiling issue, but I was not clear as to whether a pan lifter block would bolt up to the knuck case. The knuckle lifter block gasket has a different part # that a pan or shovel. By the looks of yer photo, yer runnin pan or shovel lifter blocks....bosheff

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Re: 1947 Panhead

#14

Post by Bigincher » Sun Dec 27, 2009 3:28 am

Bosheff wrote:I agree that the rocker arm ratio is different from a knuck to a pan, and also the oiling issue, but I was not clear as to whether a pan lifter block would bolt up to the knuck case. The knuckle lifter block gasket has a different part # that a pan or shovel. By the looks of yer photo, yer runnin pan or shovel lifter blocks....bosheff
Although I've owned this bike for 35 years, I don't know that myself! I believe they are from a '59 pan, same as the cylinders and heads. The motor has 1941 cases, and the top end is '59. It's in a wishbone frame, and oddly enough, titled as a '59. Been that way 35 years, I don't want to stir up the mud now!

Any idea why that rear intake tappet roller doesn't align correctly on the cam lobe?

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Re: 1947 Panhead

#15

Post by Bosheff » Sun Dec 27, 2009 2:50 pm

That's a good question, Bigincher. Off the top of yer head, do ya know how far off the camfollower centerline is from the centerline of the rear lobe on the camshaft, and which way? It would seem to me that as long as you run a knuckle cam with knuckle lifter blocks, or a pan cam with pan lifter blocks, there should not be an apparent problem with the cam and follower tracking somewhere near where they should. This of course only being true if the mounting location for the lifter blocks is the same on both pan and knuckle right side case halves, therefore, at least in my mind there should be no problems. The lifter block gaskets are different from pan to knuck. Is the bolt pattern what makes them different?....bosheff

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