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Sorry I havent posted for a few days, Ive had another project ive needed to get going. Now that thats done, Ill go out and figure the problem out as soon as I can stand to go outside in that heat again lol
Man do I hear you. They say it is going to get nasty here the next few days and I am not looking forward to it.
Dave ----
Man do I hear you. They say it is going to get nasty here the next few days and I am not looking forward to it.
Dave ----
I sure hope it doesnt get any hotter. Out here in middle-of-nowhere Iowa it hit 95 today, and of course the truck is in a giant metal building that turns into an oven. Not fun times
Ok, so. I just finished doing a fuel pressure test on the truck. The pump came out with a "whopping" 6psi. Im assuming then, that the issue is the float or something in that system. I finally got some pictures taken. Enjoy Bull in all his filthy, rusty glory.
And yes, I repainted the valve cover. It was ugly and I had to take it off anyways to replace the seal.
So, are you going to pull the top off the carb and take a look?
Yep, Ill pull the carb apart. Tomorrow. This heat is getting to me, I had to mow today and oh man am I sweating. Ill get on that carb soon as I can tomorrow!
That is why I cut my grass early before the heat hits (7am) or just as the sun is going down (5pm or 6pm) and starts to cool off.
I have been known to finish a few times in the dark with head lights on on the tractor.
My wood garage is not much better as a non-oven when the sun beats down on the roof.
Last year I came into a 24" round fan that works pretty good when blowing on you just cant use it when painting or MIG welding
We will be here when you get back on it.
Dave ----
ps: before you pull the top off the carb take a large screw driver handle and tap on the top of the carb by the fuel inlet.
Sometimes that will knock what ever is holding the needle open loose and close it.
Ok, well. I pulled the carb apart. Didnt see anything wrong, but I swapped out the float for a spare brass one. Put the carb back together, put it on, and hooked everything up. It started! And it sat there and ran for about 5 minutes before I shut it off and tried to restart it. Nothing. I gave it an hour while I ran into town to grab a few things, came back and it started again. So it wont start when warm. Any ideas?
If you prefer to stay put, make sure the choke is fully open when the engine is warm.
When you said it wouldn’t start, the starter still engaged and cranked as normal, right? Totally different troubleshooting if there’s no response from the starter, so I want to make sure we’re talking about the same thing.
If you prefer to stay put, make sure the choke is fully open when the engine is warm.
When you said it wouldn’t start, the starter still engaged and cranked as normal, right? Totally different troubleshooting if there’s no response from the starter, so I want to make sure we’re talking about the same thing.
Haha! That's fair. I like Iowa though.
Would you consider running for 3-4 minutes "warmed up"? I mean it sure got warm...
The engine cranks completely as normal when it's warm, it just acts like it's missing something, spark or fuel, but I'm 99% sure fuel is ok. I'm getting kinda suspicious of the TFI module on the distributor... come to find out there was a lawsuit about them back in like '02 because they would stop working when warm/hot. Not for sure, once I have a spare set of hands either later today or tomorrow I will check for spark when it's warm.
Would you consider running for 3-4 minutes "warmed up"? I mean it sure got warm...
The engine cranks completely as normal when it's warm, it just acts like it's missing something, spark or fuel, but I'm 99% sure fuel is ok. I'm getting kinda suspicious of the TFI module on the distributor... come to find out there was a lawsuit about them back in like '02 because they would stop working when warm/hot. Not for sure, once I have a spare set of hands either later today or tomorrow I will check for spark when it's warm.
mine did the exact same thing until I got the choke and choke heater pipe in there. Judging from your photo, I think the heater pipe is missing.
mine did the exact same thing until I got the choke and choke heater pipe in there.
Really? Ive left my heater pipe off for the moment just because I didn't want to take it back off if I needed to take the carb back off again. I guess I'll run out and do that then, it can't hurt to try
That pipe affects choke operation. Looks like you need to monitor the choke and what it's doing when you go to start it and then restart it hot. And you are correct, the TFI is famous for having heat problems. But like you said, when it won't start you can verify spark so you won't go down a rabbit trail.
That pipe affects choke operation. Looks like you need to monitor the choke and what it's doing when you go to start it and then restart it hot. And you are correct, the TFI is famous for having heat problems. But like you said, when it won't start you can verify spark so you won't go down a rabbit trail.
Sigh... Im right back to where I started. The first three times I started it, it fired right up and ran. The first two times, I shut it off trying to see if it would restart. It wouldn't. After I waited for a while, I started it for the third time and after a few minutes it died. Now Im right back to where I was yesterday. Pull the fuel line off the carb, itll start and run until you drain the bowl. Put the line on, itll run for as long as it takes to refill that carb and then it quits. I dont know what to do here. Oh, and after it died this last time, i checked, and it had spark. And the TFI wasnt even hot
Now Im right back to where I was yesterday. Pull the fuel line off the carb, itll start and run until you drain the bowl. Put the line on, itll run for as long as it takes to refill that carb and then it quits. I dont know what to do here. Oh, and after it died this last time, i checked, and it had spark. And the TFI wasnt even hot
As frustrated as you may be, you are making great progress. You have verified a good spark, so that's a plus.
With the carb, you've verified it only acts up when connected to the fuel pump. This means at least one of the following, possibly both:
1) Too much pressure from the fuel pump, overwhelming a perfectly good float valve.
2) The inlet pressure is within specs, but the float valve is sticking open, for reasons yet unknown.
I'd say it's time to tee in a mechanical pressure gauge at the carb inlet. If high, your pump is at fault. If the pressure is within specs, your carb needs some love.
As frustrated as you may be, you are making great progress. You have verified a good spark, so that's a plus.
With the carb, you've verified it only acts up when connected to the fuel pump. This means at least one of the following, possibly both:
1) Too much pressure from the fuel pump, overwhelming a perfectly good float valve.
2) The inlet pressure is within specs, but the float valve is sticking open, for reasons yet unknown.
I'd say it's time to tee in a mechanical pressure gauge at the carb inlet. If high, your pump is at fault. If the pressure is within specs, your carb needs some love.
See, this is where I'm confused. I got a pressure tester and checked the pressure coming from the pump. 6psi. and if you turn the carb upside down and blow into the inlet, you can tell the needle and seat is closing and not letting anything pass. I don't know. This truck is gonna give me grey hairs! Thanks for all your advice you guys, keep it coming!
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