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  1. DrCharles

    89 f250 ac question

    Pressure's a little high with pure propane. That's why they add some butane to the mix (think it's 70/30 but not sure). "Duracool" is the brand in the US. Yes, HC refrigerants work with any oil. Somewhere I have a jug of AB (alkylbenzene) oil that works with any automotive refrigerant, too (CFC...
  2. DrCharles

    Motor work. Bent rods, loose lifter,

    Sorry to hear that. You might try a borescope through the injector hole, before pulling the head(s). I hope a glow plug tip didn't break off and fall into that cylinder, or some other foreign body...
  3. DrCharles

    89 f250 ac question

    I bought a 25-lb jug of R-134a from Sam's Club some years ago for $79 plus tax... as the price of small or large containers keeps rising, I use it very carefully (which includes fixing leaks) :sly
  4. DrCharles

    89 f250 ac question

    All true, except that I was referring to a complete system rebuild if a compressor "grenades" and fills the system with shrapnel. Good luck getting it out of a parallel-flow condenser; also replace the receiver-dryer, expansion valve, and compressor of course (and you might be able to flush the...
  5. DrCharles

    Coolant leak

    The IDI can leak from places you didn't know existed, and frequently does ;) I had a leak like that, but smaller. Turned out to be coming from the thermostat housing, sneaking down along the cylinder head and dripping off the bellhousing. Keep in mind that the fan can push coolant a long way to...
  6. DrCharles

    89 f250 ac question

    Also expensive, not to mention illegal ;) There have been cases where a system would hold vacuum just fine, but the defective o-ring would leak with the ~90 psi static (system off) pressure on a good warm day. Large leaks can be found with soapy water. Small leaks are best located with a...
  7. DrCharles

    89 f250 ac question

    Sure, it'll usually work - but for how long? :dunno When I do a conversion I only want to do it once, not to mention spending the money! The old hoses (assuming no leaks) are fine in my experience. Old black O-rings are commonly said to be incompatible with 134, but the refrigerant oil does...
  8. DrCharles

    89 f250 ac question

    Good advice... it may have just had a wallyworld "death kit" (two cans of R-134a and some compatible oil), and the original oil, that is not miscible with 134, sloshing around taking up space somewhere. Among many other nightmare scenarios. I wouldn't touch an unknown setup like that without...
  9. DrCharles

    Batteries 100% drained dead - new problem

    Every time your batteries are run down flat, they will lose some capacity (sulfated plates). In my experience, if they sit dead for any length of time they won't come back much, if at all. They may crank the truck for summer starts but I'd seriously consider getting a new pair before winter... I...
  10. DrCharles

    Caution " Oh Reallys" alert

    I usually buy parts at O'Reilly nowadays because the quality at Autozone is worse and they hire people who couldn't find their rear end with both hands and a hunting dog! But the "spend $20 five times, get a $20 credit" still makes it worth buying fluids, at least. Anyhow, O'R got me once on a...
  11. DrCharles

    No start without starting fluid.

    Compression test?
  12. DrCharles

    ATS 093 leaky slip joint repair

    :)
  13. DrCharles

    So what did you do with your truck today?

    I scraped 1/4" of accumulated oil/dirt/gravel paste off the inside of the transfer skid plate and put it on. While under there I took a good look at the case mating area, and the drain plug. No leaks anywhere! ;Sweet
  14. DrCharles

    So what did you do with your truck today?

    In between thundershowers I put the 2 qt of ATF in the transfer case (this time, Valvoline full synthetic Transfer Case Fluid). Probably the same stuff in a more expensive bottle ;) Anyway, all the ranges work and no audible signs of distress during a couple of miles test drive. Now to fix the...
  15. DrCharles

    So what did you do with your truck today?

    After I had enough fun putting my transfer case back together for the second time this week, I decided to change the shift boot. It took me way too long to realize (it's hot and very humid today as usual in our summers and I was tired) that the new shift boot came with both the outer and inner...
  16. DrCharles

    So what did you do with your truck today?

    The (used) mainshaft assembly came in the mail this morning. I was pleased to see it also had the oil pump and chain drive gear still in place (guess the seller didn't feel like wrestling that snap ring off!) and also came with the (plastic) 2/4 shift fork in good shape :) I also welded a piece...
  17. DrCharles

    So what did you do with your truck today?

    I guess this makes three times... I rebuilt it a few years ago (bearings and seals, complete disassembly); the second time was the last few days where I screwed up royally; and now this is the third time! :rolleyes: I did the autopsy just now... the new oil pump had actually welded itself to...
  18. DrCharles

    So what did you do with your truck today?

    From the parts diagram it looks like I put the shift collar on backwards... that would explain why it was miles away from engaging (4wd) when the shifter linkage is clearly in that position. So I'm actually lucky that I had to take it apart again to find the shifter problem, otherwise I would...
  19. DrCharles

    So what did you do with your truck today?

    I tore it down again (much faster because I know what Torx bits, what extensions, etc. are needed). Good thing I did. The new oil pump feels like it's seized up (which wadded up my new bracket with the rod I welded on the end). Basically I'm back at the beginning. I even primed the oil pump...
  20. DrCharles

    So what did you do with your truck today?

    Today I torqued the t-case bolts and filled it. Went for a ride, works in hi/lo range and 2wd, no leaks. But there's no 4wd (Lever in 4HI, I can spin the front driveshaft with a finger). :***: I know exactly what's wrong... I didn't engage the internal shift mechanism properly with the 4WD...
  21. DrCharles

    So what did you do with your truck today?

    Hey @hacked89 are you in the wrong thread? ;) Today I got the transfer case oil pump parts, so I put the pump together on the mainshaft, then assembled everything in the front half of the case that is still bolted to the ZF5. That was easier said than done, because the usual oil pump mod...
  22. DrCharles

    So what did you do with your truck today?

    Tried to find someone who could repair the hairline crack in my BW1356 transfer case drain plug boss. No luck. Nobody in this area will weld or braze magnesium... I suppose it could be stitch-locked with small threaded plugs? I got it sealed up with proper cleaning and one of the Permatex...
  23. DrCharles

    Borg Warner 1356 Transfer Case Rebuild

    Thanks. I was expecting pieces of white plastic in the drained fluid (as when I first got the truck and found gear oil in it), but they are intact although likely thinner than new. I shift the TC so rarely anyway that they should be ok... After a close examination of the debris, it looks like I...
  24. DrCharles

    Borg Warner 1356 Transfer Case Rebuild

    I decided to buy an complete oil pump kit for $69 which includes a new bracket, and do the mod too (weld a small rod to the end of the bracket). But the kit doesn't come with a new piece of tubing - what kind of hose can I use for continuous contact with ATF?
  25. DrCharles

    Borg Warner 1356 Transfer Case Rebuild

    I pulled the rear half of the transfer case today, expecting to just replace the slip yoke seal and clean and apply sealant to the two halves of the case. Sure enough, it looks like I hadn't used enough when I rebuilt the TC a few years back. There is a very slow seep on the bottom, forming a...

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