WLDD Surfaces

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speedking1949
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WLDD Surfaces

#1

Post by speedking1949 » Thu May 17, 2012 5:06 pm

Hey Guys:

Can anyone tell me anything about the '39 WLDD? A shop near me has one for sale. The Palmer book does not even mention it. Online sources tell me that that production of this model was 267 in 1939 only. Specifically, can anyone tell me if the WLDD had cylinders with larger cooling fins and a four-bolt intake manifold with Linkert M-41? I would appreciate hearing from anyone who has information on these.

R.M.
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1950Panhead
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Re: WLDD Surfaces

#2

Post by 1950Panhead » Thu May 17, 2012 5:23 pm

viewtopic.php?f=2&t=3965" onclick="window.open(this.href);return false;

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Re: WLDD Surfaces

#3

Post by RUBONE » Thu May 17, 2012 7:00 pm

The WLDD stamping was the new WLD special for mid '39. It does not use a 4 bolt manifold, it uses the 3 bolt similar to the UL/ULH version. The biggest difference between it and the WLD was the Aluminum heads and the mid size ports. Note that no factory porting was done on this engine. They also used standard valves and cams.

Image

speedking1949
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Re: WLDD Surfaces

#4

Post by speedking1949 » Thu May 17, 2012 7:21 pm

Thanks for both replies.

Am I correct in thinking that the "deep fin cylinders" on the DD model were, like the aluminum cylinder heads, standard issue on later 45's?

Any ideas on what carburetor was fitted to the DD?

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Re: WLDD Surfaces

#5

Post by RUBONE » Thu May 17, 2012 8:43 pm

Am I correct in thinking that the "deep fin cylinders" on the DD model were, like the aluminum cylinder heads, standard issue on later 45's?
No, the "deep fin" cylinders were only used on the WLD models in the '40s, WLs used the small fin cylinders. WLD cylinders are rare and very expensive!
Robbie

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Re: WLDD Surfaces

#6

Post by kitabel » Fri May 18, 2012 2:43 am

All 1936-73 "normal" cylinders, including commercial and military, solo and trike variants with both 3/8" and 7/16" bolts have casting numbers:
Front 120-36
Rear 120-361

All 1939-* "special" cylinders including WLD, WLDD, WLDR and WR variants have casting numbers:
Front 120-39
Rear 120-391

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Re: WLDD Surfaces

#7

Post by cdndewey » Sun May 20, 2012 12:35 am

I posted a 1939 factory brochure here on the sight. Go to Documentation and then factory brochures and have a look to see if there's anything in it of use to you.

speedking1949
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Re: WLDD Surfaces

#8

Post by speedking1949 » Mon May 21, 2012 9:04 pm

Thanks!

The '39 brochure does not mention the DD.

So the DD was a standard 45 except for the WLD cylinders and aluminum heads?

Being one of a production run of 269, is it worth a significant premium over over a WL now? R.M.

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Re: WLDD Surfaces

#9

Post by RUBONE » Mon May 21, 2012 9:25 pm

As far as I know the picture I posted (back cover of the Enthusiast in April '39) is the first public acknowledgement it exists. It is a WLD with added aluminum heads, the first time they appear on a 45 street bike. The cylinders are special in that the deep fins first appeared. The next season aluminum heads became standard on the WLD and the cylinders as well so the second D in the serial number was dropped as it no longer had special meaning. As far as value, it is only special if someone really likes having an odd number and then only if it is correct as far as the equipment goes.
Robbie

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Re: WLDD Surfaces

#10

Post by kitabel » Tue May 22, 2012 4:05 am

1939 is also the first use of the larger (UL-sized) 3 bolt manifold, front-drive magneto, and hotter roller tappet cam - whether they reached the WLDD on line, or just sold OTC, qien sabe?

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Re: WLDD Surfaces

#11

Post by Cooniecat » Mon Jun 25, 2012 11:13 pm

More interested things about WLD, WLDR and WR´s :

http://www.beautyofspeed.com" onclick="window.open(this.href);return false;

Joe

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