86-350-460-dually

Yeah! I probably won't go! This is actually a nice group of people and very helpful. As for my old truck, the new owner is planning on doing the engine swap and keeping her alive. I do feel as though that she is good hands. I will reach out to him and let him know about this forum and the various bullnose groups and hopefully keep the truck around here a bit too.

I just wanted to say thanks to everyone who has helped me out! I am no longer a member of the bullnose community, as of about an hour ago, however I wanted to honestly thank everyone! You guys have taught me a ton as it was my first project vehicle ever and first time dabbling into how everything works. I learned a ton and will take all of this with me to California and work on something new there. Thanks again everyone! I wish you all the best with your bullnoses!

That 460 motor is still available and we have a hoist and my neighbor literally pulls engines all day at a junk yard, so im sure it can be done, however I don't have the time to do it this week, of all weeks haha. Interesting side note though, that 460 motor in the RV has an interesting set up. It runs off of gas or propane. I just don't have the time to do the swap.

Unfortunately there is a major knocking sound that came up last night. It's pretty bad. I do have video of it with audio. I will try and see if I can post it here. I am moving in 6 days and this is not exactly the sound that I wanted to be hearing right now or the smoke that I wanted to be seeing. Haha. I tried to save a bullnose, but unfortunately, I dont have the means to haul this thing 650 miles with me. I may have ended the life of another bullnose, sadly.

Thank you. My buddy also wanted me to point out that he believes he saw a faint blue in the white smoke from the exhaust.

Thank you for that Gary. You actually make a good point about the dash clusters. In fact, my oil pressure doesn't read. The night prior and since, my fuel gauge has been reading correctly but it has been doing something weird. If empty to fuel is like 10-2 on a clock. Mine now shifted to 12-3ish. And obviously my engine temp gauge is off too.

How do I go about doing a cylinder leakdown test? I'd love to do that. Gary, the truck is still running really warm. On the "normal" letters, we are sitting right about at the L. I did haul a 16k lb RV with it last night with the engine temp that high, and the RV's disc brakes unreleased. It was a beast to pull 10 miles but my engine temp didn't get any hotter than sitting on the L. I do believe I have coolant and oil leaks. How fast does it take to get that hot? I'd say it's about as fast as the truck normally takes to get up to engine operating temp.... Maybe 7-10 minutes? Normally my engine temp gauge will just stop right about halfway and point exactly at the midway mark. The day prior, it was doing exactly that and then I woke up and I couldn't keep the engine temp down. Where can I check the engine temp manually? I have a heat gun sensor dew-hickey.

Hey y'all. My 86 f350 7.5L is having trouble. The first sign was this morning when I went to drive her around. I warmed her up and instead of the engine temperature sensor showing the preheated truck at about midway, where she normally is, it was pegged all the way to the hot side. My upper radiator hose was cold though. So, naturally we changed out the thermostat. The hose then gets hot, with the new thermostat, so I know it is opening up. In days prior, we have squeeling from what we believe to be the water pump/pully when I am warming up the truck. If I get the idle over 1300 rpm's before the truck is warm, there is a loud squeel. This afternoon, my truck was throwing out white smoke out of the exhaust. This is my biggest nightmare. I believe my oil leaks out very slowly through the oil pan gasket, and naturally my oil was low, but now milky. I am looking at potentially changing out the water pump, but I was wondering if there was a way to test the water pump before I change it, and if there was any other thoughts, ideas or suggestions for what is going on with my truck. I still haven't gotten the trucks engine temperature down, and I'm not sure why. I don't know if the temperature sensor went bad (it's only 6 months old), or why my truck is blowing white smoke. What do I do?

Thanks everyone for the help. It actually did help out a ton. So I was able to swap out the rear tanks fuel pump assembly successfully today. I did discover another issue, as with most things on this truck haha. My fuel tank selector dew-hickey is not switching tanks properly and is getting stuck between the switches. So my question to you is, what in the world is the difference between these selector valves on O'Reilly's website? They have about 6 to choose from, from $45-$650 for the unit. I read the descriptions and they sound the exact same to me. Any suggestions?

Ok. That's really good to know. Thanks. First things first, check fuel pressure at higher speeds.

That's good to know. What about timing? I set it to 11° without the vacuum advance hooked up to the distributor. I bought the truck and it was at 13°-14°. Any thoughts on that?

To answer your questions: The carb did not have a choke on it when I bought it in December. It was a royal pain to start cold. Haha. ....as for the miles on it........ Well.... Not a stinking clue. Haha. I bought it and it says 6,000 miles. I have no clue how many times it has rolled over. Are you thinking of doing a compression test? I do have access to a free 460 motor out of a motorhome that's been sitting for several years with only 48k original miles. The possibility of doing a motor swap has crossed my mind, but I'm a little pressed on time.

Grumpin, The clutch was replaced two or three weeks ago. ArdWrknTrk, Altitude is a factor. I live at 6k ft currently, and those passes were around 7-7.5k ft. As for the EGR plate and gaskets, I honestly don't know if they are free and clear of the venturi's. I will pull the carb off today and look at them, because I just used what was on it before, assuming it had to be what would work best and put the new carb on top. I believe the old carb was the stock one. Motorcraft Holly.

Lebaront, It has the in tank electrical fuel pumps. It has 4.56 gears. That trailer in the photo was 14k lbs, and the trailer I will be towing in 2 weeks is 12k lbs. Regardless, I was losing power going up the same hills without the trailer though. I couldn't sustain 55mph empty. I probably dropped to 35 mph on the freeway going full throttle. I have 2.5" pipes going to the muffler and then one 2.5" or 3" pipe coming out. Other than that, I have no clue if it's stock or not.

Thanks Gary. I will have to examine the fuel pressure.