New Problem HELP! Possibly big onan troubles?

[D._Frederick]

Jeff,

Look for an openning that has a seat for the round end to seal against.

[pigman]

In my opinion it goes in hole  G  in your picture. Ok, I don't know.   The reason I bought WM  with a diesel was to keep from having carb problems.

[Furby]

Just guessing from looking at the pic, but "B" looks like it might be it.

Look at the other half and see if there is something to indicate where it goes.



Just take the other carb apart and this time take note of where it falls out from.

[Jeff]

with a little help from wood-mizer and with the post from  D._Frederick  I narrowed it down to a pretty good guess.   None of Wood-mizer's books show the part that fell out.

Furby, you dont want to know what I did before I made this post.

I dont think the carb was the problem. When I had both of them off, I could turn them updide down, and try to blow into the fuel lines and the needles were doing thier job, No leak through that way, regardless, I cleaned both carbs again but put the old one back on. I then pulled the ful pump.  The hose going to the back was wet inside, althoug I could not get it to leak gas while blowing on it, I think this may have been the problem. I hope. I put the one on off of kevins engine, pumped up the bulb, and after changing the oil AGAIN, firesd it up. Started right up. Shut it down for a few minutes and it fired off quickly again, this was have way through the thunderstorm so I figured I would come in and get dry clothes on.   I did power it up a couple times and it seemed to be running smoother. I hope this is not just wishful thinking.  When it quits raining I'll go try to start it again. If it fires right off I think we have something, as anytime it has set in the past, it starts real hard.

[Furby]

 
Sorry for laughing, but I can make a pretty good guess what ya did! 

Can't say I haven't done something like that myself...................

[woodbeard]

I actually just had mine apart today beacause my engine seems to be running rich, too, so I was checking the needle valve in it.
I'm just going on recall, but I seem to remember the spring being in hole E.

[Jeff]

Yep, E is where I ended up putting it, there is a small brass bin on the top of the carb that fits into the top of the spring.  THe thing started so, so far, so good.

[Rockn H]

Jeff, you weren't trying to mess us up with F were you?  Looks like I see threads in that there hole.

Glad it sounds like you got it figured out.  I'll have to remember that one since I'm running an onan also.  I would have never thought about the vacum operated fuel pump sucking gas back through the intake.

[hawby]

Jeff,

Did you say, "Rain?" What is that?? We are so dry down here. The weatherman keeps promising it, but the ground is cracking.....

[Furby]

I hear ya Hawby!
Was wondering what that was Jeff was talking about.

[Jeff]

I bet we got close to an inch, but thats the first rain we had had since two days before the pig roast I think.

[Furby]

I think I've had less then 3" since the end of April or early May.
That was mostly in 2 or 3 storms.
East of here was getting dumped on a lot the begining of summer, I didn't get hardly anything.
Couple weeks ago my parents had a heavy storm that took down parts of trees in the neighborhood..........5 miles North, I had sunny skies.
It's odd when they are showing on radar that you will get hit in a couple hours and you think of all the stuff that you have been leaving outside without worry of it getting wet. You then go out and pick things up and ..................... no rain!
Rain is now out of the forcast for another week.

[ladylake]

Jeff  Did you give it a good workout yet? Running good?  The pulse hose to the fuel pump will always be wet, same as the oil cap or inside of the crankcase as that's where the air is coming from to run your fuel pump. Most likely there was a speck of dirt in the carb that you got out.   Steve

[Jeff]

Still not right. I'll change carbs now.

[Jeff]

I ran the mill yesterday and cut to small red pine logs. Mill ran BAD while cutting.  THis morning I went out and changed the carb. I checked the oil and the level was good, but I think I detect the smell of gas.  I tried to start it, No fire.  Acted flooded.  I pulled the plug on the front side of the mill and it looked good, I pulled the plug on the back side and it looked good but wet. So, I decided I would crank the engine a couple times with the plug out. GOOD DANG thing I didnt have my face any closer. Must a blew at least an once of gas out.  Either that gas got in there last night after we shut it down, or it accumulated in the last cut or so when the engine felt like it was running on one cylinder.  You would think it would get sprayed out the exaust, but I guess, as liquid, how can it? Muffler goes straight up. 

As soon as I blew that stuff out of the cylionder and put the plug in it fired right off. I am going to go out and saw another log in a bit. Hope its better. Dont know what else it could be now if it aint. Different fuel pump and different carb.

[Coon]

Well,  for all of those who are wishing for rain......hmmm...... come and get some.  We have had by far more than needed.  95% of the crops here are still out in the field and we have yet been able to pick them up.   On a normal year we would be nearing the 60-75% finished point but not this year.  We can't even swath alot of the crop that is in the low spots cause they is full of H2O.  In the past month or so we have had atleast 15 inches of the wet stuff.  Getting kinda depressing.   Especially when our barley that should have went malt is now only of feed grade because it has sprouted.

[Jeff]

Stopped to grab some late breakfast.  MUCH BETTER! I think the problem is solved knock on wood.

[woodbeard]

well, here's hoping you end up with plenty to knock on! 

[ladylake]

Jeff  Hows that Onan running?  Steve

[Jeff]

Its really running well. It was all in that carb somewhere.  I may pickup a kit for it and rebuild it so I have it on the shelf.