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Old 09-08-2016, 12:31 PM   #101 (permalink)
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whoa! no ignition to turn off
You do understand the combustion process of a diesel vs gas motor?

On the runaways the engine is getting its own fuel source, so say a key turning off the fuel pump (if it had an e one) would do nothing.
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Old 09-08-2016, 12:43 PM   #102 (permalink)
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You do understand the combustion process of a diesel vs gas motor?

On the runaways the engine is getting its own fuel source, so say a key turning off the fuel pump (if it had an e one) would do nothing.
I do... it was a <sarcastic> comment. WOOSH....
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Old 09-08-2016, 03:28 PM   #103 (permalink)
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You do understand the combustion process of a diesel vs gas motor?

On the runaways the engine is getting its own fuel source, so say a key turning off the fuel pump (if it had an e one) would do nothing.
Any Diesel, not just DD , can runaway .....Watch this crowd pleasing 6.0 Ford

https://www.youtube.com/watch?v=MZOdHMKo8Cc

Last edited by ADChevy4x4; 09-08-2016 at 03:29 PM.
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Old 09-08-2016, 04:09 PM   #104 (permalink)
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I lost the turbo on a 3406e cat and that bitch tried taking me for a ride. Luckily I recognized what was going on and left it in 8th gear as I entered a rest area. I turned off the key and stood on the brakes and it heaved up then died and backfired.

I remember a pro stock car doing damage to the engine and it ran away. The safety safari was on top of it and hosed halon down the intake.
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Old 09-08-2016, 05:57 PM   #105 (permalink)
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That was my thought as well. I've always wanted to swap one into an older pickup but they're getting harder to find, and they're heavy as fuck. A 6V53T is like 1800 lbs if I recall. There is a guy on youtube with one in a late '70s Chevy 1 ton. I'd want a straight axle suspension like that of an older F-Superduty or something under the front. No way that double wishbone is gonna like that.

A 4-53T makes a bit more sense, but they're pretty heavy for the power output. They're 185hp for the 4-53T Silver series engine, supposedly over 200 is possible. They weigh what a damn 6BT does though... 1200 lbs. They're definitely outdated, but man do they sound cool. A member here had a 1950's Ford pickup with one under the hood.


Saw one in Atlanta a few years back in a 70s Ford F-350 flatbed
They stopped and helped my friend pick up all the lumber he dumped out of his shortbed pickup when he popped the clutch on a hill


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Old 09-08-2016, 06:17 PM   #106 (permalink)
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Any Diesel, not just DD , can runaway .....Watch this crowd pleasing 6.0 Ford

https://www.youtube.com/watch?v=MZOdHMKo8Cc
And another just because.

https://www.youtube.com/shared?ci=1axIO-g24RA
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Old 09-08-2016, 07:01 PM   #107 (permalink)
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Holy fuck, gotta wait for the ending.

I'm impressed, a 2015 GMC too. I never would have guessed that going into the video. I guess it really can happen to anything.
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Old 09-09-2016, 02:29 PM   #108 (permalink)
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The engine is surprisingly clean. It does leak oil out of one of the tubes that come from the side of the engine there is one tube on each side. I'm not sure what the purpose of that tube is yet. Other than that, there are no leaks other than the coolant leak I found. It is leaking coolant just sitting there.

The small tubes on the side of the air-box, are oil drains. If you break a oil control ring or the wrist pin seal is burned or poorly set it will puke oil on one side. If you get oil out of both sides then look to the blower seals for the source.

Sometimes you can get lucky by removing the air-box covers and use a mirror as someone slowly rolls the engine over with a wrench and you can find the damaged wrist pin seal. The wrist pin seals are a tin plate that cups into the piston bore. It's a crap shoot when you set them. A hand suction cup is used to test for proper seating. A golf ball works well for seating the cups.
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Old 09-09-2016, 04:05 PM   #109 (permalink)
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I feel this needs to be in here



build thread.
Kenworth 850 Off Highway - RC Truck and Construction

it's amazeballs.
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Old 09-20-2016, 09:27 PM   #110 (permalink)
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Ok. So I thought this truck had a air shut off for run aways but I am not sure now. The og owner said that the cable to shut the truck down wasn't working, so he always just put it in high gear and killed it....So there is a pull cable that is on the floor in front of the shifter. It routes down to what appears to be the back of the blower. The lever that this cable attaches too is stuck (I haven't had a chance to work on it yet). Is this the fuel shut off? Should there be a cable in the under dash somewhere for the fuel? There is also a lever behind the shifter that does not have anything attached to it. Can anyone tell me what this is for? I would like to know what these are for before I jump into fixing them. Thanks.
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Old 09-20-2016, 09:44 PM   #111 (permalink)
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Originally Posted by AllGoNoShow View Post
Ok. So I thought this truck had a air shut off for run aways but I am not sure now. The og owner said that the cable to shut the truck down wasn't working, so he always just put it in high gear and killed it....So there is a pull cable that is on the floor in front of the shifter. It routes down to what appears to be the back of the blower. The lever that this cable attaches too is stuck (I haven't had a chance to work on it yet). Is this the fuel shut off? Should there be a cable in the under dash somewhere for the fuel? There is also a lever behind the shifter that does not have anything attached to it. Can anyone tell me what this is for? I would like to know what these are for before I jump into fixing them. Thanks.
The fuel shut-off should be a cable running to the engine governor. The cable you described that goes to the blower sounds to me like the air shut-off for runaways. It should be spring loaded to slap shut when the cable is pulled, and then you have to get out and re-set it by hand.
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Old 09-20-2016, 10:10 PM   #112 (permalink)
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The fuel shut-off should be a cable running to the engine governor. The cable you described that goes to the blower sounds to me like the air shut-off for runaways. It should be spring loaded to slap shut when the cable is pulled, and then you have to get out and re-set it by hand.
I think on the V motors they had the governor behind the blower. Someone who knows for sure will be along shortly though.
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Old 09-20-2016, 10:40 PM   #113 (permalink)
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I think on the V motors they had the governor behind the blower. Someone who knows for sure will be along shortly though.
Yup. My 6v53N has the governer behind the blower
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Old 09-20-2016, 11:08 PM   #114 (permalink)
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Im glad I read this and I wasnt imagining that 6-71 sputtering and then running backwards one day. Sucked the exaust flap down and rolled smoke from the intake.

I figured cause it was worn out...add oil and start it, it didnt wonk wonk wonk, just a steady roll until she caught, then puked the oil down the side of the stack until she decided what her level should be.

I think I dumped the clutch with the brakes engaged to shut it down, then cranked right back up like normal.

Was a 67 Bucyrus Erie truck crane, 6-71 lower 3-53 upper. 2 steer axles and you were in front of them, hanging off the front bumper basically. 48 mph floored. Manual steering, that sucked. It was scrapped around 06.

Its little brother the Grove 18 ton with a 4-71 was driving as of last week. On a cement mixer awd chassis. Makes me miss my 20's and the sound of a Detroit.

Scrapped a running Bucyrus-erie 36h excavator once, 6v71 in it. I remeber thinkg, how to sneak the blower home.
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Old 09-21-2016, 08:05 AM   #115 (permalink)
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So is everyone thinking that the cable going to the back of my 8v71 the fuel cut off? I can't find anything by searching google.
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Old 09-21-2016, 10:12 AM   #116 (permalink)
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share some pics
does the go pedal attach to the same box'o'bits?
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Old 09-21-2016, 01:03 PM   #117 (permalink)
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share some pics
does the go pedal attach to the same box'o'bits?
I will have to go look again. I will try to snap some pics.
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Old 09-21-2016, 01:36 PM   #118 (permalink)
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share some pics
does the go pedal attach to the same box'o'bits?
This... if it is the governor box it will have the throttle pedal linkage going into it as well as the fuel shut off.

If it is a lever that actuates a flap in the path of the air-flow then it is the emergency air shut-off flap.
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Old 09-21-2016, 01:41 PM   #119 (permalink)
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Some pics, pics always makes it better when talking about a flap.......
Attached Images
  
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Old 10-05-2016, 09:38 AM   #120 (permalink)
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I am currently looking for a cattle trailer for this truck. I will mainly be using it to haul pairs to pasture in the summer. My current lease is 90 miles away from my headquarters. I haul about 160 pairs to this lease and pasture another 25 pairs 20 miles away. The rest of the cows stay on my ranch. I have a choice between a pot and flat deck trailer. Will this truck (or me) with 350 horsepower and 13 spd be hating life grossing 80,000 pulling a cattle pot? Should I play it safe and get a flat deck that will be grossing around 50,000 to 60,000 and make more trips. There are a few short 7% grades. Pros to pot is haul more in one trip, cons are you will drag belly in some areas, top heavy and harder to pull, more up front cost. Straight deck is more maneuverable but will haul less on each trip, cheaper up front cost.
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Old 10-05-2016, 10:34 AM   #121 (permalink)
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Go with the flat. 80,000 on a 7% is no fun in many modern trucks. Even at 50-60 you're gonna work your ass off.
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Old 10-07-2016, 11:47 PM   #122 (permalink)
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I went and looked at a straight floor yesterday and it was a pile. Drove 200 miles today and looked at a 47ft 1986 Wilson pot and bought it. They used to pull them full all the time with these trucks, no reason that I can't do it too. Time to man up and drive my ass off I guess. I will try to get some pics, definitely going to get some looks at the sale barn this fall with a '73 2 stroke cabover Pete and old school pot...
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Old 11-02-2016, 09:30 AM   #123 (permalink)
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Well I went up to my summer pasture lease, which is 90 miles away and loaded 41 1300 lb momma cows and brought them home. Loaded 21 600 lb calves on the powerstroke. Blew a tire on the pot and tore up the back end of my trailer where the tail lights mount, really sucks. The truck drives great but I definitely would like more power. I have to pull a 7 percent grade that has a sharp turn at the bottom. Hit the bottom doing 65 and crested it doing 10, white knuckle ride. This was the first time I have ever driven a semi truck loaded, I was sweating cresting that hill. Downshifted 9 gears between the bottom and top.

[IMG][/IMG]

[IMG][/IMG]
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Old 11-02-2016, 09:39 AM   #124 (permalink)
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There ain't a bit of shame in going down a grade slowly. There are lots of people that throw their trucks off a hill and burn the brakes all the way down. I use the highest gear that will hold me to a steady speed without touching the brakes. That used to be 5th doing 19 mph with my old engine & trans and now it's 25 in 6th with the new stuff. Granted I'm grossing 96k+ when I do it but the method is the same.
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Old 11-02-2016, 09:41 AM   #125 (permalink)
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I was going up the grade loaded. I was empty going down it, but you can bet your ass I will be geared down when I head down it loaded.
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