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Dajain
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Posts posted by Dajain
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This is the only picture I have so far. Message me your e-mail if you want to see more.
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I have a 1975 Mack firetruck I was going to use for a project but things might be changing. Still haven't convinced myself that I'll never get to it. haha.
The truck has about 32k miles on it
The motor is the Mack ENTD-865 turbo diesel. It runs perfect and purrs like a kitten
The Transmission is the Allison HT-740D Automatic. This will not shift out of 1st gear. I've never had a chance to troubleshoot but I was going to look for a 4x4 transmission anyways. One thing I thought was maybe there is a safety to protect the water pump from over speeding and that is why it won't shift? Never really looked at it. !st forward and reverse both work fine.
The firefighting components are kaput. Don't even figure that as any part of the value.
I have the original Mack Service Manual from the factory with it also but I have no title.
Just curious what a fair price would be for this? From what I have read, these motors are impressive for performance and torque and that is why I was thinking of using it for my project .
What would be a fair price for a low mileage motor in a rolling chassis?
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I think it's ironically funny that you talk about a dash switch, or something of the sorts Vlad. I have wondered if this firetruck has some kind of over ride or "safety" associated with the PTO transfer case for the water pump to keep the pump from over speeding.
Should be interesting when I finally get the chance to work on it. There seems that there may be a few factors I need to look at.
When I work on it, the first thing will be getting rid of the transfer case and have a driveline built. That should eliminate any Safety that would be needed to protect the pump. There are electrical wires going to it, so it's a definite possibility
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3 hours ago, tjc transport said:
it may be something stupid like low fluid level.
i have seen simple things like that cause supposed intelligent people spend big bucks searching for a repair.
That was where I was going to start when I get the time to look at it. haha
Short example:
I have a "74 International 2010 dump truck I picked up for $600. It was a old hwy dept truck and has the hydraulic tank on the passenger side. They said the truck was no good because it wouldn't lift and dump anymore even though the Hyd. tank is full. The hyd. lift is a separate system than the hyd tank which was for the plow lift and spreader. Filled the lift cylinder with fluid and it's been going fine ever since. Moral of the story, makes sure the fluids are full before the tools come out. 🤣
And yes, for the $600, I did get the snow plow with it too, if anyone was wondering. haha
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If I was to spend that kind of money, I would just buy a rig with a sleeper on it already. 😅
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On 6/14/2021 at 2:34 PM, tjc transport said:
yup. the ENDT-865 is a Mack V8 engine, not a Detroit.
325 HP and 1100 Ft LBs torque.
Yup, I stand corrected. Not the first time I've been wrong. haha.
Done a little research on this thing and from I can tell, she is a beast! Read somewhere that it is known for twisting drivelines so she needs a tender foot.
Need to figure out the transmission issue figured out though. I am in my busy season and haven't had a chance to research or tear into her, but hoping someone tells me it's a $75 solenoid. Please, Please Please.. haha
Wait..... Tell me that if it's the truth....Not to make me feel better. hmmm haha
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So, was I wrong in my presumption??? If so, please feel free to say so.
Is the Mack ENDT-865 built by Detroit? I'm finding that Mack specifically built them and no mention of Detroit doing so when I do the searches.
Hmmm.
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OK, went out to the old girl, turned on the batteries, hit the start switch and she fired right up. Let her warm up and build air. I like to start from time to time to be on the safe side.
Decided to take a good look thru all the compartments and look what I found! Someone upstairs apparently loves me. haha
The complete service manual specifically put together for this truck and VIN.
I should have all the Info I need now.
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On 6/13/2021 at 6:23 PM, alex g said:
Well the price was definitely right. I'm not sure on transmission problems is it a V8 Detroit?
Yes it is a Turbo Detroit. She purrs like no other I've seen. Only 36k miles, she's not even broke in yet.
"Mack" is stamped in the valve covers.
Too cool to not use in one way or another.
NOTE!!!! I was wrong.....It is not a Detroit. It is in fact a Mack engine. Just want to avoid any confusion. updated 6/16/21
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Hi everyone!
I'll try to explain this as easy and as quickly as I can. I have this 1975 Mack Trucks fire engine that I acquired. I got the old girl for free and she starts right up every time. The truck has less than 36,000 original miles so I highly doubt she is worn out. lol
It has the V-8 turbo diesel with the automatic transmission. When driving it, the transmission doesn't shift out of first but pulls just fine in first.
First question. I haven't had time to look at it or research, but what could be the problem with the no shift problem on this unit? Bad servo? Anyone have any experience with this? Or is this a sign of a transmission that is shot? What automatic transmissions were available for this configuration? But, at only 36k miles, I would be surprised at that.
Any experience with this would be appreciated.
Now, my plans for the old girl. Yes, this is where it gets interesting. haha
I haul old steel houseboats for salvage and I am currently using a 1969 Ford N-750 with a gasser 391 Industrial. She is slow but does the job. My thoughts are to strip off the "firetruck" pieces of the truck and suit it with a 5th wheel hitch. She has the air for the brakes so I don't think it would take much to convert to a trailer hauler. The firetruck parts of the unit are shot and many pieces have been removed. Not much use as a firetruck left in her any more.
Then, the way the cab is set up on this thing, I am picturing building a sleeper birth behind the seats (above the engine) to save the cost of a motel room every time I load a houseboat and haul it.
Here is the critical info:
Date: October 1975
GVWR: 33200
Vehicle Number (V.I.N.): CF79fF(15)-1064
Any decode of the VIN would be awesome too. Did a quick search and haven't had any luck.
But the first step is the transmission.
Thanks for any replies in advance.
What is it worth?
in Engine and Transmission
Posted
And not Mack, but I have this old girl for sale. She is a 1969 Ford N-750.
Original 391 industrial. Rare factory option with air brakes.
Licensed, insured and road worthy and I still use her today. Upgrading to something a little better for my needs.
She is original (except for the paint) and she's not perfect but there is hardly any rust. Very solid old truck
Anyone can give me a call if they are interested. Asking $10k or best offer
9704244552