Dltx 10 ports

Jdr315

Member
Any one know where this port goes? It's toward the top of the stem. I can shine my light in the stem and see light out the main bore where the nozzle comes out and the port on the side towards the choke flap but don't know where or if this one goes to anything.
35391.jpg
 
Almost forgot...get that paint off the fuel bowl roof as it will eventually wrinkle up and end up in bowl and could plug up the idle/load needle port openings.
 
if i put the light in the bore I can see light thru a port up there but it is a little farther up there and more center of the bore. The port I am pointing at is a little more toward the idle needle. The story Is took the carb apart and cleaned it out. Replaced the main nozzle, throttle flap, throttle bushings, throttle packing, main nozzle spring, all new brass plugs, new needle and seat. Tractor ran fine before and won't run under load now, backfires out of the exhaust. Idles fine.
 
if i put the light in the bore I can see light thru a port up there but it is a little farther up there and more center of the bore. The port I am pointing at is a little more toward the idle needle. The story Is took the carb apart and cleaned it out. Replaced the main nozzle, throttle flap, throttle bushings, throttle packing, main nozzle spring, all new brass plugs, new needle and seat. Tractor ran fine before and won't run under load now, backfires out of the exhaust. Idles fine.
 
Copy and paste this it to your search browser
http://2579a90dca59e2d6707d-c3b5ec2f4a4a3f74e903a49d559e7abc.r96.cf2.rackcdn.com/marvel_schebler_dltx.pdf
page 13 shows the hole in question..
 
(quoted from post at 07:16:28 04/25/16) ...marvel_schebler_dltx.pdf

Thanks for posting that. Is there a similar manual that covers the Duplex carbs? I see this one on Mike's site, but it's the only one he has for Marvel Schebler.

Joe
 
No port there. Either it's casting porosity or some expert puller modification gone wrong,who knows after over 60 yrs. I would say casting flaw in which case it would not be your backfire problem. My e-mail is open.
 
(quoted from post at 16:01:42 04/25/16)
(quoted from post at 07:16:28 04/25/16) ...marvel_schebler_dltx.pdf

Thanks for posting that. Is there a similar manual that covers the Duplex carbs? I see this one on Mike's site, but it's the only one he has for Marvel Schebler.

Joe
his is the only Duplex diagram that I can recall from Robert's Carb Repair web site..
http://robertscarbrepair.com/duplexdrilling.asp
 
[/quote]

OK...I've seen that, and have had the Roberts video for years. Always on the lookout for more documentation.

Thanks.
 

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