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  1. C

    ABS and ignition problems

    I certainly don't want to, but fact is my brakes now are significantly worse than before the swap, so going back (but with new MC and calipers) would at least give a reset to where I know how it "should" work and feel. I wanted a spare reservoir cap to turn into a pressure bleeder cap, and it...
  2. C

    305 Is a Turd Correct?

    Hah, they want $5k for that? A church I used to drive for sold a beautiful Thomas-built in excellent (for a used bus) condition, for $4k. If I had realized how little they were selling it for I would own it... I put a lot of miles on that bus. I guess the '65 is a "classic" maybe, but to me...
  3. C

    305 Is a Turd Correct?

    I've driven one of those buses. My pushmower has better acceleration, with an unmotivated 15-y/o behind it. Not saying it's a bad engine, but the fact some idiot decided to stick it in a bus doesn't mean it was up to the task. Manufacturers underpower school buses all the time, because most...
  4. C

    ABS and ignition problems

    Haven't had a chance to pull them yet, but I realized last night they're almost certainly the larger pistons. When I swapped in the D369 pads, I had to bend the springs on the back of the pads outwards to keep them in the piston while I was assembling everything. As they came out of the box...
  5. C

    ABS and ignition problems

    So it's all back together, cycles the abs a bunch and re-bled and got a bit more air out, and so on, and.... the brakes still suck. Not quite as bad as before, but they hardly leave one with a feeling of confidence. The parts on it now are: MC: 18M712/M390257 (mine is the latter, came in a...
  6. C

    Interest in EBC4 ABS Bypass/Delete fitting?

    Hey folks, With my recent adventures in EBC4 hell, I had the thought... "If only someone made a fitting that could be installed in place of the EBC4, without bending or re-flaring any lines, to confirm the EBC4 is the problem and/or just remove it completely." But of course no one makes...
  7. C

    ABS and ignition problems

    Alright, so... I was wrong about the distributor pick-up coil, and I'm glad because I didn't want to pull/rebuild my distributor. I hate, loathe, and despise adjusting timing (mostly thanks to a PITA '89 Ranger that was my first truck). I thought it was, because I misinterpreted the drawings...
  8. C

    Confirmed brake bleeding scan tools

    I would guess they mean no heavy-duty (semi/tractor) type trucks, buses, etc. Hard to say for sure though.
  9. C

    Rotors and brakes opinions

    Maybe I'm cheap, but I generally go with whatever "less irreputable" rotors Amazon has available quickly. Pretty much all of them are churned out of the same few Chinese foundries now, and most come from one of the First Brands companies (owns Brake Parts Inc., Raybestos, Centric, probably...
  10. C

    Confirmed brake bleeding scan tools

    That's correct. Would be great if someone else (maybe with a different model year in case of different programming) could confirm, but worked for me. I'm wondering now if the Tech1 actually sends a command to the EBC4 to run the function test, or just internally bridges A and H? Seems pretty...
  11. C

    Confirmed brake bleeding scan tools

    Good news on the EBC4: It seems that with a working pump (no codes), no scan tool is actually needed to cycle the pump. I just plumbed in my new wrecking yard unit last night, hooked up wires and batt today. Turn key to run, wait for ABS light to turn off, jump terminals A+H on the ALDL...
  12. C

    A/C replacement parts?!

    One thing I've learned about AC systems... the bulk assortment of o-rings almost never actually has the correct size. Better to get the assortment meant for your vehicle from 4 Seasons or O'Reilly or whomever. Otherwise it's way too easy to get an O-ring that's just a little too small or thin...
  13. C

    Confirmed brake bleeding scan tools

    Here's the PT version of the tool. The Kent-Moore looks identical but with a yellow cap, from pictures I've seen. Also a shot of one installed, and thebar clamps that can be used instead if you dont have the tool.
  14. C

    Confirmed brake bleeding scan tools

    Added the J39177 / Performance Tool W82010 To be clear, these are the tools to hold the valves on the EBC4 while bleeding (also can be achieved with bar clamps). A scan tool or other method to cycle the pump is still required. I hope by end of this weekend to have some sane method of...
  15. C

    Confirmed brake bleeding scan tools

    It makes sense the way you read it, too, just sadly not the case. I really wish they would just put bleeders everywhere that needs them. One idea I read somewhere (don't remember which forum/thread) was to put all 4 corners on jack stands and hit the brakes, to at least get most of the...
  16. C

    Confirmed brake bleeding scan tools

    Performance Tool W82010 is the same thing as the J39177, if you can find it. About $15 instead of $50, but I don't think they're making it anymore (I just bought 2 old stock on Amazon - still in package but light rust). While I was waiting for them to arrive I got impatient and used two long...
  17. C

    ABS and ignition problems

    Yeah, that would've been a good idea... never really had the bar clamps leak like that before though (to be clear, I just clamp over the sides of the banjo, no pinching of the hose. Didn't help I spread the work out over several days... recent knee surgery means I probably shouldn't have been...
  18. C

    ABS and ignition problems

    Finally had both the weather and time to start testing things... confirmed I have good fuel deliverey, but no spark. After a bit of poking around with a meter, alao confirmed my ignition coil seems to be fine, but the pickup coil on the distributor is bad. 7.5kOhm across the coil, when the FSM...
  19. C

    Front diff need modifier?

    Heh... Told you I hadn't worked on that diff. :) With just a fill and drain hole, I'd probably do exactly as you mention here - fill, run for a while (maybe 500 miles or something, maybe not even that), then drain and re-fill. If I were *really* concerned about other substances in it, I might...
  20. C

    Front diff need modifier?

    Disclaimer: I haven't worked on this specific diff. With that out of the way, normally you just pull the cover, let it drain out, seal it up with RTV and re-fill it. Some diffs might have a drain plug though I'm not sure I've seen one. If it's really nasty inside maybe spray it out with brake...
  21. C

    OBD1 ABS codes

    I just replaced every bulb on my cluster ('94 K1500 Suburban). PC74 is the small indicators, PC161 is the normal illumination, and there was a single PC194 (don't remember what it was for). If you have an O'Reilly near you, ask for those P/Ns from the EIK (Eiko) line code. You can get a...
  22. C

    ABS and ignition problems

    Sigh... got my new "ABS Module" by UPS from the wrecking yard... and it's a little black box that says "cruise control module" on it. :rolleyes: They're making it right and shipping the actual ABS unit, but sounds like this saga may not resolve this weekend as I had hoped.
  23. C

    OBD1 ABS Scan/bleed protocol analysis?

    Ok, so I know there are a million threads on a dozen forums asking about which scanners might work with OBD1/ALDL ABS such as my lovely EBC4 I've grown to loathe in the past 2 weeks. I'm not trying to re-hash those threads here. Rather, in my day job I'm a bit of a tech nerd and do some...
  24. C

    ABS and ignition problems

    My notes show the ACDelco 18M712 as being for truck with hydroboost. I'll check my notes and update this post. You might check too. Guh.. I was afeard of that, but found a couple listings saying it was for JB7 and I assumed vacuum boost. I may just try it - right now I have no brakes and no...
  25. C

    ABS and ignition problems

    Thanks for the pointer on the MC. Looks like ACDelco P/N for the 1-1/4 is 18M712, or Raybestos M390257. Thank you Amazon, I'll have it Thursday. As far as spark - didn't recall that I said that, but I looked back and sure enough I did. That's my working theory because I smell fuel, so I...

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