Freightliner FLC


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By kblackav8or - 3 Years Ago
I am treading into new territory.  I am buying a late 70's Freightliner FLC from my brother in law.  I have posted about it a little bit already but I have a price now and have agreed to buy it and also it appears I may have an engine for it too. 

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Aluminum hood truck, air ride, sat in that spot for over 20 years so far as we know.  Engine is a dead 8v92t.  Transmission is TBD - my wild guess is a 13 speed.  Last owner is getting elderly and has dimensia.  My brother in law bought his property and they thought I was perfect to get that truck.  For what it is I am getting a pretty reasonable price.  It is located in Southern Oregon out east of the Cascades so it is pretty dry there which may have helped preserve it.  On the negative side it has had a known rodent problem so cleanup of that mess will be an early issue. 

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So the installed engine has been apart and open like that for a couple decades.  Justin M. located a more recent 8v92 that is a DDEC engine on some sort of run stand.  Rebuilt with no running time but someone hooked up the batteries wrong so the story goes and fried the ECU.  More research needed.  I don't know which DDEC it is or what sort of added wiring to put it in this truck.  Alternately can it be converted back to mechanical injection?  If it can be a good fresh DDEC engine I imagine that isn't all that bad. 

http://forums.justoldtrucks.com/uploads/images/172562b1-2e2f-47bc-995f-e7b3.jpg

My brother in law promises more truck pictures and a search for the VIN/data plate is on along with more detailed photos.  If anyone can ID the engine based on the photo or provide any details for me to research further.
By Junkmandan - 3 Years Ago
Welcome to the 2 stroke cult !
By kblackav8or - 2 Years Ago
So Dan I need you to educate me on these Deetroits.  Tell me what you can identify on the motor on the stand in terms of electronics and how hard will it be to adapt this non electronic truck?  Most older EFI systems were fairly self contained and just had a few things that talked to the truck itself. 
By Junkmandan - 2 Years Ago
Kevin-----The aluminum colored box under the turbo and ahead of the blower replaces the mechanical governor.   The black rectangular box at left side of the control panel is the ECU , to the right could be a rheostat for throttle control, or because the bottom of the picture is cropped off, could have the foot pedal which would also have a rheostat built in .  I should have an overview of the electronic components and sensors involved that I can direct to your regular email . It appears it has the complete harness to run the engine as could be used in a training class.

Nice classic, by the way !        Rick Knox may have started a following in another cult !
By kblackav8or - 2 Years Ago
I almost bought a FLC the last time after I sold the 81 A model.  The wide hood KW was too unique and cool of an old truck.  I really wanted a small cab KW.  It is close enough to done I just need to keep making little improvements with it.  The FLC is something I am hoping is cleaned up and operable in time for Reno and maybe it rides the trailer there.  I sent money for that DDEC II 8V92.  So I have a motor for it.  Next will be paying for the FLC and getting it moved home.  I think having it running and driving in 2018 is a reasonable goal giving the backlog of projects and house remodel projects I have stacked up. 
By kblackav8or - 2 Years Ago
Have some more pictures up on my smugmug page for the FLC.  I bought that DDEC 8V92TA for pretty cheap so between the 2 I should be able to come up with 1 runner.  Probably going to see if we can get that DDEC engine running on the stand.  Goal is to have it home in the next year and hopefully at Brooks by 2018, who knows maybe it will ride there on a trailer this year. 
So truck is between a 77-79 near as I can tell (would love for someone to narrow it further)  8V92T currently, 13 speed, air ride, steel frame, aluminum hood, factory Freightliner sleeper. 

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All the pictures here:  https://kblackav8or.smugmug.com/Trucks/Freightliner-FLC/


By John Hanson - 2 Years Ago
Looks like fun Kevin!  Rodents in the sleeper can be fun....especially on a slick road...
JH
By kblackav8or - 2 Years Ago
I am not sure.  I haven't seen the truck in person. 
By Junkmandan - 2 Years Ago
Tony------They used to supercharge the compressor by getting the feed air off the airbox...............In this scenario, you're turbocharging the compressor !         And that Deeeeeeeeeeeeeetroit gets the compressor backfeeding the geartrain so you can back off on the throttle.   How 'bout it ?  Say wha' ? 
By Doug Blevins - 2 Years Ago
My 60 series used to run the air line from the intake manifold (post turbo) into the compressor, after 2 rebuilt compressors, several air dryer cartridges, and oil in all my air lines, I put a screw in plug in the manifold, and put a K&N filter on the end of the compressor intake hose. No more oil in the air dryer! For some reason, I kept getting oil blow by past the compressor rings, causing oil to plug the dryer cartridge, then by pass that and run oil all the way back to the trailer air tank. After the second rebuilt compressor did it, figured time for a change, also went to newer style air dryer with spin on cartridge instead of the old factory one that you have to unbolt the housing. Have had no problems since!
By Junkmandan - 2 Years Ago
Tony------It took me a while to think that story up !
By Junkmandan - 2 Years Ago
Isn't there a special Bendix Westinghouse valve to be added to that airflow out of the turbo to minimize the loss of turbo boost when you need it ?  I think it may also have something to do with oil consumption through the compressor .  Seems I vaguely remember hearing this at a local Fleet Maintenance Council meeting .

By Wayne64SS - 2 Years Ago
Any progress on this?
By kblackav8or - 2 Years Ago
So a plan for getting it out of the weeds and to my place is in the works.  The title has been located and there is probably a bunch of parts for it scattered around.  Sounds like much of the engine is in the cab what is not under the hood.  It's a 1980.  If things work out, it will make an appearance at a regional show right after we yank it out of the brush. 
By kblackav8or - 2 Years Ago
So the title has been located.  There is a plan to recover it.  I have a engine that should be workable one way or another.  With a vin we know a few things.  According to Cam it was half of a matching order of 2.  8V92TA, 12513, 228 wheelbase, Elizabeth paint scheme was original.  Not my photo. 
http://forums.justoldtrucks.com/uploads/images/6c71aa29-b8ea-41c7-88ea-9e12.jpg


By Wayne64SS - 2 Years Ago
I need that one in the pic!!!! 

By kblackav8or - 2 Years Ago
I now own the FLC.  Comes home at the end of next month. 
By kblackav8or - 2 Years Ago
Delayed..  It's ride had another task so we are working on rescheduling for a later time.  Should be home by winter however.  Maybe even the next couple weeks. 
By kblackav8or - 2 Years Ago
My sister in law found this snapshot of my Freightliner on the property where it is stored.  This is a working picture of it probably late 80s or early 90's before it was parked.  I hope they find a few more of it. 

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By kblackav8or - 2 Years Ago
Title in hand.  Working on a plan to bring it home soon before winter. 
By Wayne64SS - 2 Years Ago
Awesome pic and news!!!
By kblackav8or - 2 Years Ago
Got a pic from my brother in law that helps confirm some things.  You Freightliner experts decipher this?  Appears it is a late 79 build.  Not sure what the rest aside from the vin. 
http://forums.justoldtrucks.com/uploads/images/4fd0bdbf-59c2-42df-b68c-b1a6.jpg
By kblackav8or - 2 Years Ago
Tomorrow the odyssey begins to go bring the FLC home. 
By kblackav8or - 2 Years Ago
It's home.  I will have good bad and ugly pictures in a few days when I am home coinciding with daylight. 
By kblackav8or - 2 Years Ago
All the pictures.  Most recent in the later pages.  7 pages of pictures.  There is lots of work to be done but I am seeing good signs with my spare engine and the drivetrain from engine back looks fine.  Hoses and chassis wiring seems good.  Some hood bodywork issues, a couple cracks and support structure needs repair.  Metal itself is pretty straight.  Cab has some issues with holes from where it appears the visor was torn off.  Doors are straight.  Drivers windshield is cracked.  Couple bodywork issues with the sleeper roof.  A couple ugly patches and it is dented in pretty good.  I think it can be pushed up pretty easily.  Interior- if it is absorbant fabric.. it's nasty stinky and is probably going on my burn pile.  Quite a bit of trash, old logbooks and junk that is mouse pee saturated.  All the vinyl looks to be in good shape externally.  I think replacing the screws with ones that aren't rusty and a good cleaning and it will look pretty good.  Interior plastics need repaired in places and probably re-colored.  Center console HVAC box - plastic on that is destroyed.  I have already spotted a number of odds and ends I need.  Brake foot valve is seized.  Missing the blue brake release button.  I have a couple days with gloves and garbage bags to clean out the mess.  ODO Ban and lots of suds inside just to make it habitable to work on things.  Cab wiring mostly looks good except for possibly some hvac stuff and radio and cab fan wiring. 
https://kblackav8or.smugmug.com/Trucks/Freightliner-FLC/
By Junkmandan - 2 Years Ago
Lucky guy to find this classic..............I'd call it the 55-57 Chevy of Freightliners.   Great picture detail.so we can follow along .
By C_hasbeen - 2 Years Ago
I sure love the sound of a two stroke Detroit engine!  I was enjoying your pictures you have in your album and noticed one that looked like it was the owners manual, did (do) these come with a name from the factory? yours has the name Elizabeth?
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By kblackav8or - Last Year
Sorry for the belated reply.  The paint scheme it originally came with has Elizabeth for a name.  It is from their advertising pamphlets. 
By kblackav8or - Last Year
I bought a FLC severe service cab for $100 on a frame with front axle.  Pretty well stripped of much of the useful stuff.  Strongly considering replacing my FLC cab with it to get a straight solid one without any holes.  Wondering if much of the earlier interior will just swap over.  Pretty sure someone will want my FLC cab.  My reservations are about the older doors which is a love hate - they have the 2 ribs in them and a vent which adds styling and charactor but they are also older Freightliner All Weather doors.  New cab has the improved better doors.  Decision means more work but wind up with a better truck in the end. 
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By kblackav8or - 8 Months Ago
I am pretty sure I will eventually make the cab swap and transfer much of the interior that I can make fit over to the other cab.  It is a much sturdier cab without the damage issues of the original.  I kind of wouldn't mind finding a early fiberglass hood that used the round headlights on pods and matches my aluminum one.  My hood will need some serious repairs to be right.  I have been slowly accumulating stuff to get the intact 92 I have running.  I picked up a DDEC II computer, a engine harness, a power harness I believe plus a plug and some wire to build part of the harness.  I think I need a jake harness when I add those.  So slow progress being made. 
By kblackav8or - 3 Months Ago
Today I got to the point where a test start of the 8v92 going in the Freightliner was possible.  I replaced all the electronic stuff with what came off the engine in the Freightliner.  The heads were gone but all the head parts were still there, injectors, rockers etc.  Installed the injectors only to discover they had different fittings from the electronic ones.  So had to replace all the injectors fittings with "new style" fittings and rebend the lines which actually turned out to be not too bad.  A 90 bend in each line at the bottom and a little tweaking and they matched up and it appears they all work.  Took great care to make sure all the racks on the injectors were very free.  Had oil coming out in the valve covers where I expected and a few fittings I didn't expect so I know it is pumping.  Start wasn't too dramatic.  Once I knew the governor was pretty much doing it's thing I shut it down and restarted for the camera after checking it over.  Probably be a while yet before I have time to put it in but it seems like a major accomplishment toward getting the FLC going under it's own power. 
https://youtu.be/OZP7xpKV_9A


By roKWiz - 3 Months Ago
Nice one Kevin.
By Junkmandan - 3 Months Ago
Atta boy, Kevin !     It has the snap and bark like it should .!
By kblackav8or - 3 Months Ago
Dan,
   Does it sound to you like I really need to make any tuning adjustments at this time?  I will say this I am missing 1 long jake bolt.  Know where I could find one?  What we did is just left the jakes off that cylinder and used the bolts that were there.  The other 7 are there.  What I don't know is how the Jakes talk to each other and if I am missing any parts?  I think there is some connector or something between them.  Also need to do the wiring on them.  We are going to hook up the cooling system and put some water in it so we can run it for a longer period and play with setting the idle and such.  I need to also wire up the shutdown solenoid. 
By Tony Bullard - 2 Years Ago
What's this line do? Feed the compressor?
By Tony Bullard - 2 Years Ago
I've always liked the idea of supercharging the compressor. It doesn't give you any more air pressure it just make air quicker. The warm charge air does make it a little less efficient though. Yeah, say wha' about the back feeding?  With the governor valve unloaded the compressor reeds are held open and the boost pressure helps drive the compressor piston down driving the engine. BUT when the piston comes up it has to fight the boost so a net gain of zero. Does this sound like it might be a lot of hot air?
By Tony Bullard - 2 Years Ago
I like your story and style Dan. Your gettin almost as good as me with the BS. It's an acquired skill that I've been honing for years. My nickname was Bull when I was a kid and it wasn't short for Bullard.  Proceed with caution.   LOL.
By Tony Bullard - 2 Years Ago
I'm finding this very interesting, especially about the oil consumption. I'm talking about the old BW two cylinder compressors.
On the intake the boost pressure lifts the intake valve and charges the intake stroke.

It seems to me that pressure would try to blow by the rings and wipe the oil back to the crankcase.
On the compression stroke the intake closes and the charged air is forced through the discharge valve to the reservoir.
This also seems like it would blow oil back to the crankcase.

When its unloaded both inlet valves are open and both cylinders are receiving boost pressure. The pistons are 180* out so when one comes up the other goes down and the air just moves between them. Still blowing oil back to the crankcase.