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Lmh Troubles


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#1 DH1 ONLINE  

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Posted May 22, 2013 - 09:18 PM

I am working on a LMH carb that mounts to a Tecumseh OH160 engine

The guy I got the engine off of said it didn't run right, flooded out all the time, said he put a rebuild carb kit in it but no change.

I have taken the carb apart and there appears to be something missing.

The nozzle is a service nozzle, has been replaced.

Right beside the end of the body where the nozzle screws into there is a small threaded hole and nothing to go in it. (pic)

What if anything is suppose to go in there?

001.JPG



#2 IamSherwood OFFLINE  

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Posted May 22, 2013 - 09:27 PM

I looked at a few parts explosions. Doesn't show anything to go in there.


Edited by IamSherwood, May 22, 2013 - 09:28 PM.


#3 DH1 ONLINE  

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Posted May 22, 2013 - 09:35 PM

I didn't take anything out of there but it sure looks like something is suppose to go in there.



#4 Alc ONLINE  

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Posted May 23, 2013 - 05:51 AM

Sure looks like a jet should be screwed in there , I wish I could be a help



#5 LilysDad ONLINE  

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Posted May 23, 2013 - 06:47 AM

I am listing a video that shows a Wahlbro LMH apart. It doesn't appear to have anything in that opening either. This video was made by one of our members. Perhaps he can chime in.


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#6 bhts OFFLINE  

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Posted May 23, 2013 - 09:26 AM

Yes there should be something in there. That is where the main fuel jet goes. Which LMH carb do you have and i will get the part number for you.



#7 TAHOE OFFLINE  

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Posted May 23, 2013 - 09:30 AM

Yes there should be something in there. That is where the main fuel jet goes. Which LMH carb do you have and i will get the part number for you.

 

I think he's talking about the small hole in the side of the main jet tube????

If I recall, there maybe a small brass jet that screws in there. I've seen them both ways with a small jet and nothing in there. Been a while since I've had my LMH apart.



#8 bhts OFFLINE  

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Posted May 23, 2013 - 10:40 AM

I think he's talking about the small hole in the side of the main jet tube????

If I recall, there maybe a small brass jet that screws in there. I've seen them both ways with a small jet and nothing in there. Been a while since I've had my LMH apart.

 

That was the hole i was talking about. Some have the main there that is why it is threaded and some don't. That is why the carb number is needed. I would say the wrong kit was put in and that would be why it floods out.

 

Here is a pic of what should be there.

 

n 001.JPG


Edited by bhts, May 23, 2013 - 10:44 AM.

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#9 Alc ONLINE  

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Posted May 23, 2013 - 10:59 AM

Thanks Bob that makes sense now , maybe the kit had different parts the the the original  one



#10 TAHOE OFFLINE  

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Posted May 23, 2013 - 11:23 AM

That was the hole i was talking about. Some have the main there that is why it is threaded and some don't. That is why the carb number is needed. I would say the wrong kit was put in and that would be why it floods out.

 

Here is a pic of what should be there.

 

attachicon.gifn 001.JPG

Gotchya!!!

I've seen them with a little plug type screw in jet, not one that sticks out like that. My LMH didn't have that type I can remember that fo' sho'



#11 Canawler OFFLINE  

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Posted May 23, 2013 - 02:47 PM

Dumb question but what good would that jet do at that spot? It's just the fuel pickup point. All it could do is restrict fuel flow.

#12 DH1 ONLINE  

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Posted May 23, 2013 - 05:47 PM

The carb I have has the adjustable high speed main jet.

 

MAYBE

 

Carbs with the adj needle valve on the bottom of the carb, don't have anything in that hole.

Carbs with the fixed jet, in that hole, would have a plug on the bottom instead of the adj needle valve.



#13 olcowhand ONLINE  

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Posted May 23, 2013 - 05:57 PM

I have seen carbs with a small jet screwed into that hole before, but I can't say what model carb or engine.  My memory isn't THAT good.  I do think it's as Doug said, on a non-adjustable carb.



#14 LilysDad ONLINE  

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Posted May 23, 2013 - 05:59 PM

Some of them have an adjustable main jet in the bottom of the bowl. They have the main jet up inside. Others just have a plug holding the bowel on.






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