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Joined: Oct 2006
Posts: 9,671
D
'Bolter
'Bolter
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Posts: 9,671
John M, I hope you don't mine my linking the guys back to the firewall picture of your truck. It is an excellent example of the W-1 with an oil bath air cleaner applied to it. http://s160.photobucket.com/albums/t172/stovebltr/Misc/?action=view&current=49_firewall.jpg

Having fought a nearly two year battle with the original flat top Rochester 'B' carb I thought I would try a W-1 for a while and see if it is all it is cracked up to be.
I've found that it is not. I still have a hesitation or flat response while accelerating up to speed and it accelerates best when the choke is out roughly 1/2”. Even when running along steady at 50 or 55mph or around 2500-2700rpm if you add a smidgen of choke you can back off the throttle a tiny bit and the engine seems to come to life. I’m absolutely convinced that the W-1 is jetted to lean for the post ’49 engine with it better breathing head and running it on alcohol blends. And even though I have dropped the float level nearly 1/8” below the recommended level, I still have a fuel-flooded engine that takes a minute or so to clear out when I restart after it has sat for more than 15 or 20minutes.

But that’s not what generated this post. After fitting up the W-1 a few months ago I tried to use my oil bath (which is the same one John M has on his W-1) air cleaner and found that it the bottom of the unit hits the W-1 dust cover preventing it from dropping down fully onto the air horn. There is no indent or dimple in the bottom to clear the dust cover so I just put the original spark arrester back on. Here’s a picture of the oil bath on the ‘B’: http://rides.webshots.com/photo/2578353210098611668glUaeI

Has anyone else noticed this with an oil bath on a W-1????
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL
Joined: Aug 2005
Posts: 6,378
T
Ex Hall Monitor
Ex Hall Monitor
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It's slightly different from the one on my 38. The mounting flange on my air box bottoms out on the carb air horn without the air box body hitting the the dust cover. ohwell


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Joined: Sep 2006
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B
'Bolter
'Bolter
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Denny,

I have a rochester now but my original engine had a W-1 on it and I still have the air cleaner. I believe it is like Tiny describes I will shoot some pictures of it and post them.

Joined: Mar 2004
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G
'Bolter
'Bolter
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The oil bath on this W-1 looks a little different than the ones previously posted. Photo


Steve

'49 3800
'52 3600
'57 3100

Joined: Oct 2006
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'Bolter
'Bolter
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Steve I believe this is the 2lb. filter used on the heavy duty trucks.
Denny Graham
Sandwich, IL


Denny G
Sandwich, IL
Joined: Oct 2008
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Apprentice
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http://i448.photobucket.com/albums/qq201/Neo50/003-1.jpg
Here is a pic of the bottom of the cleaner on my W-1 off my '50 3100. The shaft height is 1 1/16" and there are no indentations. Hope this helps.
Sounds like your carb is flooding because the needle isn't seating allowing fuel to keep flowing. Adjusting the float level won't help. You won't be able to tune the carb until the fuel level is correct.
Scott


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