Correct carb please advise for 1949 FL

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Fred
Posts: 14
Joined: Wed Jul 12, 2006 8:39 pm

Correct carb please advise for 1949 FL

#1

Post by Fred » Fri Jul 14, 2006 4:23 am

The Engine # For my 49 Pan is 49FL7267 The horn mounts are flattened but not rounded. I assume this makes it a late 49???? What is the correct carb M-36 or M45



Cotten
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Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

Re: Correct carb please advise

#2

Post by Cotten » Fri Jul 14, 2006 2:58 pm

M-36s are far more common than M-45s, so I tend to think that the switch was very late in the production.
Perhaps so late as when the cast manifold was re-introduced.

...Cotten

Fred
Posts: 14
Joined: Wed Jul 12, 2006 8:39 pm

Re: Correct carb please advise

#3

Post by Fred » Fri Jul 14, 2006 3:21 pm

If the bike were judged what would the look for to be sure I have a M 45 it did not come on the bike when I got it several years ago it had a74B which is wrong. you mentioned the cast manifold how can I ID what I have

panz4ever
Posts: 521
Joined: Fri Aug 12, 2005 5:45 pm

Re: Correct carb please advise

#4

Post by panz4ever » Fri Jul 14, 2006 7:06 pm

The M-45 is listed as correct for later 49 to early 50 F and FLs; the M-36 is listed as correct for early-early-1950 61 motors and early 1949 F and FLs
And, got to looking at my Linkert book and noted a couple of things...
The venturi on the M36 is 1 1/8"; for the M46 it is 1 5/16"
The M36 is described as being used for EL, FL, FLEs low perf. models, while the M45 is described as being used for FL, FLH high perf and KH models
Both use the same main nozzles, throttle disc angle is slightly different ( by 3 degrees)

Fred
Posts: 14
Joined: Wed Jul 12, 2006 8:39 pm

Re: Correct carb please advise

#5

Post by Fred » Fri Jul 14, 2006 8:01 pm

up date on the manifold it is Cast Iron

Cotten
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Location: Central Illinois

Re: Correct carb please advise

#6

Post by Cotten » Sat Jul 15, 2006 2:29 am

What "Linkert Book" are you quoting?

...Cotten

panz4ever
Posts: 521
Joined: Fri Aug 12, 2005 5:45 pm

Re: Correct carb please advise

#7

Post by panz4ever » Sat Jul 15, 2006 7:50 am

Cotton, it is called the linkert Book and is published by Victory Library. I found it when I was doing research for the 49EL I am putting back together. The carb that came with the basket was a bastard of several carbs. The book has helped me rebuild it the right way.
It covers the whole gambit of Linkert carbs...from how it works, identification, carb selection, speed tuning, manifold adapters, racing Linkert series carbs, jet size tables.

The website is http://www.victorylibrary.com" onclick="window.open(this.href);return false;

Cotten
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Location: Central Illinois

Re: Correct carb please advise

#8

Post by Cotten » Sun Jul 16, 2006 1:07 am

Panzr4ever!

I think Mr. Diamond was probably suggesting that the M-45 could be used for those models, if you have quoted him accurately. The inclusion of a K is your first clue, as the M-45 had been superseded two years before they came out... and used the M-53.
If he states it as historical fact, it is very disappointing. (My copy is quite old, and I don't even remember where I filed it.)
Palmer's lists the M-45 as production for later '49 and early '50 F and FL only. The M-36 was supplied on 'early' '49 F and FLs, and E models throughout '49 and early '50.
If Mr. Palmer cannot document the serials of when these changes occurred, I would guess that the information has been truly lost.

....Cotten

panz4ever
Posts: 521
Joined: Fri Aug 12, 2005 5:45 pm

Re: Correct carb please advise

#9

Post by panz4ever » Sun Jul 16, 2006 8:29 am

So Cotten are we not in agreement re carb for the pan motor?......or am I all f'd up in reading your post....Dave

Cotten
Posts: 6911
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

Re: Correct carb please advise

#10

Post by Cotten » Sun Jul 16, 2006 1:43 pm

Fred's original question was basically whether his machine was 'early' or 'late' 1949, basis his serial number.
We have no accounts of exactly when the M-45 was introduced during the 1949 production year, or when the M-74 superseded (replaced) the M-45 in 1950.
You might get a better feel by comparing the serial with the total production for the year (if sources can even agree upon that!)

About the manifold:
'48 and most all of '49 manifolds were fabricated steel instead of cast steel,.

Note silver-soldered seam.

Again, we do not know by serial when this change occurred.
It is revisionist to assert that changes in production were even clear-cut at the time, but we all want to please the AMCA judges (yeah,...right....insert winking face). Most of them will want to see a fabricated steel manifold.

....Cotten

Fred
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Joined: Wed Jul 12, 2006 8:39 pm

Re: Correct carb please advise

#11

Post by Fred » Sun Jul 16, 2006 4:34 pm

In Greg Field's book Panheads he states that 12685 Panheads were sold in '49 out of this number 8014 were FL's (my # is 49FL7267). Where does serial numbers start for the year No.....0000?????. If it does mine was one of the last 49's That would make the M45 proper...not the M36. Thanks for your input Fred

Cotten
Posts: 6911
Joined: Mon Aug 26, 2002 9:09 am
Location: Central Illinois

Re: Correct carb please advise

#12

Post by Cotten » Sun Jul 16, 2006 5:47 pm

Fred!

The prototype for each production year was supposed to be #1000.
Thus, your 7267 was approximately the 6267th Big Twin (Es and Fs were numbered consecutively together) off the line, or just about in the middle of the production. As far as I'm concerned, that's a free ticket to go either way as far as 'early' or 'late'.

I suggest that all spend the money to aquire Mr. Palmer's landmark reference: "How to Restore Your Harley Davidson.." (Motorbooks International).. Although not perfect by any means, it is far better of an investment than coffeetable books or zeroxed flyers.

....Cotten

Fred
Posts: 14
Joined: Wed Jul 12, 2006 8:39 pm

Re: Correct carb please advise

#13

Post by Fred » Sun Jul 16, 2006 7:45 pm

Thanks Again for all the help. Fred

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