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  1. Frstdiesel

    1984 6.9 radiator re-core cost

    Well I thought I had a good lead on a "reasonable" re-core for my original radiator. I was quoted $680. From what I have read on here over the past many months this is probably in the ballpark. Also from what I have read on here, it seems the aluminum rads are lasting 3-5 years. If I can get...
  2. Frstdiesel

    1984 f250 body lift.

    Hey guys I am in the process of rehabbing my 2 wheel drive single cab 1984. I will be pulling the bed to install one of Wes's 38 gal tanks. So I thought I would like to get a body lift kit to raise it an additional 1" and just replace all bushings on the truck to get a little extra clearance I...
  3. Frstdiesel

    Need new style rocker arm for 6.9

    hey guys, I'm looking for 1 new-style rocker arm for my 6.9 I bought an eBay set and one has significant pitting in the pushrod cup. Thanks
  4. Frstdiesel

    1984 F250 convert from Hyd to mechanical clutch linkage

    I am searching for input from y'all on whether it is feasible to convert my 1984 F250 from hyd clutch linkage to mechanical. Right now the engine is out of the truck and the hyd clutch system either needs a kit or replacement. I'm thinking there is less to go wrong with mechanical linkage as...
  5. Frstdiesel

    Upgrades for mid 80s first gen Banks turbo?

    My 6.9 rebuild is making slow progress but I'm getting there. It's going back standard as there was no wear on any components. I did stud the heads. I had the injectors freshened up and pop pressure set. I will send the IP off to get freshened up and set up for this turbo. I would like to get...
  6. Frstdiesel

    1984 F250 shop manual

    Can someone tell me if there is a place on the OB site where I can find in a shop manual the proper procedure of installing core plugs on a 6.9 using the driver tool? Maybe a snap shot of the page? Thanks
  7. Frstdiesel

    Core plug driver

    Well, I've decided I would make an attempt at "properly" installing the core plugs on my 6.9 block. The machine shop that did my block work and balance job installed the steel core plugs "with a ball peen hammer". My local IH dealer said that's how they do it as well. I couldn't find a tool to...
  8. Frstdiesel

    Found this old dude

    My brother found this1984 F350 for sale. Owner said make offer. Engine replaced within past 2 years (with a used engine) not 100% sure if it's a 6.9 or a 7.3 I would think the 6.9s are getting scarce, so maybe a 7.3? Engine info sticker on valve cover says 6.9, but it could be from the original...
  9. Frstdiesel

    Turbo info

    Wes I couldn't figure out how to post pics to a conversation so I put them here. These are pics of my late 80s Banks turbo.
  10. Frstdiesel

    1994 7.3 F250

    Hey guys, I've spent the last several months on the 6.9 IDI forum as I have a 1984 F250 I'm in the process of rebuilding. Today I ran across a guy I've known for many years. He has a'94 Crew Cab, 8' bed, with manual trans. I think he maybe the original owner. He also has a 2003 f350 he uses to...
  11. Frstdiesel

    6.9 head studs

    Hey Guys, I'm in the process of the rebuild on my 6.9. I am going to have the cylinders lightly honed while the block is at the machine shop. I am also going to install ARP heads studs. Should I have the studs installed prior to having the cylinders honed? Thanks
  12. Frstdiesel

    What year did electronics show up?

    Hey guys, what year did electronics show up in the Ford diesel pick ups? Mine is a 1984 and no electronics.
  13. Frstdiesel

    Converting to cup style freeze plugs

    Has anyone here converted their idi to cup stylefreeze plugs? I saw a vid on YouTube using a hole saw. Looked like it did a pretty good job. The author said he "turned" down the OD just a touch to make a tight fit. I'm wondering how much material I should remove from the hole saw. I can turn it...
  14. Frstdiesel

    6.9 piston ring suggestions

    Ok guys, need suggestions for piston rings. 1984 6.9 with 90k miles. Doing a refresh on it. Bores are great, no taper, original crosshatch marks still there, no ring ridge, std bore. Planning to have the machine shop do a light hone while the block is in for vatting and align honing. Questions I...
  15. Frstdiesel

    6.9 cyl head upgrades/mods

    Looking for suggestions/advice on cyl head upgrades or modifications for 1984 6.9 heads. They only have 90k miles on them. No warpage or cracks. Truck has an old Banks turbo setup. Going with upgraded rockers and head studs. Getting the short block align honed and balanced, upgrading to a 12"...
  16. Frstdiesel

    6.9 block work

    Ok guys I'm knee deep in this rebuild. With only 90k on this engine the block only needs a light honing, and I'll install new cam bearings. However the coolant passages have a lot of junk and rust in them. I would like to have it vatted but I read on here don't mess with the freeze plugs if you...
  17. Frstdiesel

    Porting idi heads

    Hey guys, I'm doing a freshen up job on my 90k miles 1984 F250. I have a couple questions. 1. I haven't found much info on porting 6.9 heads. For example what areas need to be cleaned up or not even mess with them. 2. What's the going rate to have an IP rebuilt? Purpose for this truck is to...
  18. Frstdiesel

    Balancing a 6.9 rotating assembly

    Since the diesels operate at lower rpm than gas engines, is it worthwhile to have one balanced?
  19. Frstdiesel

    Old 6.9 idi

    Hey guys, I just joined oilburners. I recently acquired an 84 F250 with 6.9 and Banks turbo. 4 speed manual. I got it from the original owners family it has 90k on the clock. Truck is complete and all original. Problem is i drained close to 3 gals of water out of the oil pan. This I believe is...

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