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  1. M

    6.9 & 7.3 IDI Commandment Lists - IDI Do’s and Don’ts

    you guys complain about the heat, I cant get past 160* engine temp in the middle of summer with the a/c on! Winter is coming and I know im gonna need a block heater, 12 volt window defroster and a 12 volt coffee warmer for the trip to work in town........Plus i have to purchase valve cover...
  2. M

    Question about locking differentials

    Fredrickson: what brand can I purchase and where exactly can I buy it? Im open to any comments!
  3. M

    Question about locking differentials

    Ok guys heres what happened: I took the old 10.25 rear end out, with a lot of miles. I found a newer model 10.25 with traction lock. I drained the grease out and refilled with 85w-90. My question is this: Since it is a locking rear end is there any special friction modifier I need to add to the...
  4. M

    Cetane Booster beneficial in a 7.3 idi?

    I run HOTSHOTS after speaking with Wespaul, I can say it makes a difference even in an old rig like mine.
  5. M

    Question for the crowd:

    Alright: Ive been driving my '89 F-250 w a 5 speed to my other job. Sometimes its 52 miles away. Ive noticed that when I get above 2200 rpms the engine surges, but not at 2100 and under.......and when I let off the accelerator I see some blue smoke coming from the exhaust for about 5 seconds...
  6. M

    $5 Ram Air Intake?

    has anyone tried to plumb it to the driver side radiator supports? If he had tried using the stiff aluminum dryer hose it may have worked. Im trying to get my 7.3 more air... I have the factory set up but the snorkle tube is dryer vent hose. been thinking of adding a sprayer to cool the...
  7. M

    So what did you do with your truck today?

    I drove my truck to work........stands out amongst the BMW, Lexus, Caddys and he like. Its a ranch truck for crying out loud....:)
  8. M

    Road Trips

    my road trips consisted of driving 52 miles one way to the Sheriffs office. Pick up my unit for the shift and drive back home , 12 hours later....... for months............ Then I got my present job and have time to work on my IDI. Ive got to get a spare tire mounted...... Texas heat rotted...
  9. M

    A/c condenser upgrade

    try the evaporator off a '89 if it will fit. My truck will blow 40* air on a 100* day. I think this is due to the fan clutch not unlocking and pulling cool air ...I converted mine from R-12 to R134a and Im happy with it. I have the option of going south of the border and purchasing R-12 ...
  10. M

    ??? about throw out bearings

    thanks......i just happen to have a ZF5.... Think Ill go see how much its gonna cost to to do a clutch changeout.......with my arthritis I know its gonna be fun....
  11. M

    ??? about throw out bearings

    I know this sounds rather silly, but is thee any way to lubricate a throw out bearing? I had a n old Dodge pick up with a slant six and a manual tranny. I remember it had a grease zerk on the T/O bearing and making sure i gave it a shot every oil change.... Please give me your opinions, ye...
  12. M

    woe is me.....

    Yup, thats what happened!! I cant believe how quick it starts! I want to bump the timing up a bit more, but Im happy with what Ive got. Gonna start on the suspension pretty quick!
  13. M

    woe is me.....

    LuLuBelle LIVES!!! come to find out it was the starter all along. apparently, i have been driving around with a half burned up starter...... That says something about the motorocraft products! Starts right up........Now to get rid of those bumps on my head getting that big thing out of the...
  14. M

    woe is me.....

    Well guys ol' LuLu Belleis showing her age. The other day for no reason she did not want to start. She later started no problem..... Im gonna take her to Oreillys and get the batteries tested, if not it may be the starter......I did turn up the timing on the pump( about the thickness of a...
  15. M

    Just a random thought: IP electrical connectors

    The other day LuLu Belle left me stranded..Horrors!! After messing with it for a few minutes I decided not to mess with it any more. I would get my buddy Tom to to pull me home( Oh! the shame!!) I went back about 5 hours later and thought what the heck let me try this one more time.... No...
  16. M

    question regarding multi weight motor oil

    Ok guys heres a question: If you buy 15w40 motor oil and add it to your engine, at what temperature does the oil "flash over" from 15w to 40w? and is the process slow or sudden? The reason I ask is I know my engine has tons of miles so why not just go with straight 40 weight motor oil and...
  17. M

    A/C System

    my '89 had R-12, and was converted to R134a on the cheap. I changed the orifice tube, the connections and evacuated the system, while leaving the drier/accumulator intact ( well, my buddy did)... It held vacuum for 2 hours and then we added the oil charge and freon. On a hot day in west texas...
  18. M

    Muffler removal

    how restrictive is the oem mufler. Mine appears to be stock from 1989?
  19. M

    Fan clutch

    Heck Ive got a fan clutch( unknown manufacturer) that seems to never unlock. I can get the engine to 160* with the a/c going in the west texas heat.... Im not complaining,though
  20. M

    1994 IDI

    Texas does not care one whit what about these older vehicles....just have a muffler installed and youre good to go on these oilburners!
  21. M

    Question re: fuel filter light

    My “ fuel filter” lamps coming on. I’ve replaced both fuel filter and lift pump.... but it only does this when I pull out of the rear tank and not the front..... I’m going crazy trying to figure this out. When pulling out of the rear tank ,( full of diesel) it cuts out/ surges......but it...
  22. M

    2 things Ive figured out

    I dont plan on putting $7000 on a vehicle.... Just a little here and there to keep it reliable and roadworthy.... I may spend $2k on it total but right now the pressing issues are to install a 4.10 locking rear (sitting in the garage), fix the fuel gauges, stop all the leaks of fluids, and...
  23. M

    2 things Ive figured out

    my tires appear to be wearing equally...but man that looks so weird! Im starting to repair/replace parts that I need to make the truck drive-able beyond 50 miles...The engine is just hoss!!! , but i can see a IP and injector replacement coming up.. I informed the Domestic Goddess that...
  24. M

    2 things Ive figured out

    I replaced my thermostat with a Motorcraft replacement, and to my horror it stil doesn't get very hot. Ive checked everything. I even turned the radiator fan to check it.. Well, it does turn but I also heard a buddy's truck and his fan sounds different. I believe my fan wont unlock when its...
  25. M

    7.3 IdI honing cylinders

    I use Lubriplate assembly lube on all my engines. Another little trick to use is simple: upon installing the engine back in the truck, pour as much boiling water in to the radiator as you can to fill it up....for 2 reasons= it allows you to reach operating temperature quicker. and then you can...

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