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Raise your hand if you want to answer my stupid question!


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#1 Ryan313 OFFLINE  

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Posted January 28, 2012 - 05:06 PM

The other day I was using my 71 to drag some logs so i could try out the tires chains I just made. I only pulled one log, it wasn't very big at all but after about 200 feet it sounded like it was starting to run out of gas. It stalled and then I couldn't get it going again, even though it had a half tank. I thought it was just vapor locked and i came back the next morning and drove it out of the woods like nothing had ever happened. Today I changed the condenser just to make sure that if it was problematic it wouldn't happen again. I went and cut up the log I dragged the other day and I got all the billets loaded into the trailer. I started up the tractor and got about 10 feet before the same thing happened. I checked the gas again and it had plenty. I tried to start it and it puffed some white smoke. What do you think the problem is? The coil is almost new.

#2 MH81 ONLINE  

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Posted January 28, 2012 - 06:03 PM

When it does this, it the engine hot? Or does it do it cold too?
If only hot, considering the coil is ok (verify) and the condenser is new, and the engine is getting gas... I'd take a compression check.
My knee jerk diagnosis is a sticking valve when hot. Once it cools down, it's ok again.
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#3 Ryan313 OFFLINE  

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Posted January 28, 2012 - 06:17 PM

Well, the first time it happened it was running for about 45 minutes. The second time it was running about 5-10 minutes then sat for about 30 minutes and then I drove it about 500 feet to were the log was, loaded the trailer and it only went 10-15 feet before stalling. Almost immediately after posting this I went and it drove out of the woods fine, that was another 20 minutes. All my work today was pretty much worthless, those new chains I mentioned... THEY SUCK. All I did with them on was drag that one log and then everything I mentioned in this post and, I already broke 4 cross links!!! So, with the chains doing close to nothing i had to empty the trailer because I couldn't get enough traction to pull it through the mud. Ill have to take some pics of the mess I made.

#4 MH81 ONLINE  

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Posted January 28, 2012 - 06:39 PM

Are they New, or new to you(used) chains?
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#5 DH1 OFFLINE  

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Posted January 28, 2012 - 06:46 PM

It sounds to me like when you put a load on the engine it stalls out.
Maybe it's not getting enough gas when there is a load on the engine, fuel filter, fuel pump, restricted fuel line???

Edited by DH1, February 19, 2012 - 10:59 AM.

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#6 wvbuzzmaster OFFLINE  

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Posted January 28, 2012 - 06:46 PM

I want to voice this one, I know how this works. Pull the carb and clean/rebuild it, and see if that doesn't fix your issue. The Caterpillar was having trouble starting, and or restarting and the clean up/rebuild solved that problem. Now, it never stalled out when running per say, but it never had a load on it so if there is more demand on a half clogged carb you CAN and usually WILL stall out.
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#7 Ryan313 OFFLINE  

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Posted January 28, 2012 - 06:47 PM

MH81, My dad got them about 20 years ago and we've had them ever since, he used them on his dune buggys. I just made some extensions so I could use them, they were about a foot too short. So if its a sticky valve, I assume I have to take the head cover off? Or is there a simpler way?

Doug, it could be a fuel problem. I just put a feel filter in about 3 weeks ago. The sediment bowl collects stuff VERY fast, im sure a good amount is passing the bowl and cgetting to the filter. Tomorrow ill check the filter and all the lines.

Casey, ill take the carb off and clean it tomorrow as well.

Edited by bmxkid313, January 28, 2012 - 06:53 PM.


#8 wvbuzzmaster OFFLINE  

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Posted January 28, 2012 - 06:50 PM

DO NOT pull the head off yet, the simpler solution is check into all of your fuel system, as Doug said a clogged fuel filter could do it too. And also, check your fuel lines are clear, clean up the gas tank, and rust scale could be lodged up in somewhere.
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#9 MH81 ONLINE  

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Posted January 28, 2012 - 06:51 PM

Not that I know of. If that's what it is, head off, valve out.

Do a compression check cold, then you have a baseline number for when you check it when it acts up.
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#10 wvbuzzmaster OFFLINE  

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Posted January 28, 2012 - 06:51 PM

Oh, as for tire chains, get some semi truck tire chains and cut them down, way heavier construction than most chains.
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#11 Ryan313 OFFLINE  

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Posted January 28, 2012 - 07:06 PM

Ok thanks. How do you do a compression check? Sounds complicated. Ill try to find some semi chains, or something else big.

#12 ckjakline ONLINE  

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Posted January 28, 2012 - 07:14 PM

Compression check isn't hard.All you do is pull the spark plug and thread the correct treaded hose into spark plug hole and crank engine over so it builds up pressure on your gage..You do need a comporession tester though.You could probably borrow one from your local auto parts store if they have the loner tool program.
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#13 Texas Deere and Horse OFFLINE  

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Posted January 28, 2012 - 07:42 PM

Could you have water in your gas? With it blowing white smoke then dying, just wondering if that could be the issue.
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#14 Ryan313 OFFLINE  

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Posted January 28, 2012 - 08:01 PM

The white smoke came out after it died when I tried to start it again.

#15 Ryan313 OFFLINE  

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Posted January 29, 2012 - 06:22 PM

I checked the lines and they were clear but the filter was full-o-gunk. I changed the filter, I didn't clean the carbon but I will in the next few days. I also took off those chains...




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