Miscellaneous intake/cooling/fuel questions

Discussion in 'V8 - Maintenance & Troubleshooting' started by 98SF19, Nov 10, 2017.

  1. 98SF19

    98SF19 AlphaKennyBuddy

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    Not sure what you mean by using IMRCs from other motors - do the others use the same style of connector? Operate from the same signal? Designed to pull at least the same amount of travel as the SHO? As for the dims of the wheel, I was really just wanting to see how involved it would be to replace the plastic flywheel inside with aluminum. My first one had the cable pop, the second one's plastic wheel disintegrated. In both cases, it seems the internal motor was up to the task of overcoming the secondary port build-up, but nobody else inside was (cable or wheel). Use of con/catch can should keep any normal IMRC in working order for a quite a while though. Yes, please send pics of what you have. Thanks!
     
  2. GEN 3 SHO FAN

    GEN 3 SHO FAN SHO Member

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    I never made a switch but the internal is the same. If you search a gear to repair yours, can find one in them at least. Same plug and same plastic connector at the end of cable too (spares). Mustangs of the same years with 4.6L had it too but I never found one to see how it was made. Your idea to replace them by metal part isn't bad though.
     
  3. stephen newberg

    stephen newberg Moderator Staff Member

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    My secondaries have been wired open for well over a decade now, getting closer to two, and when I open things up they are always still clean. I think the best advice is what Paul Nimtz gave ages ago. Drive it like you stole it all the time. The car simply likes it and rewards you.

    pax, smn
     
    SHOdded and 99sho-time like this.
  4. 98SF19

    98SF19 AlphaKennyBuddy

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    . . . or live in a place with low humidity and run a CAI in a non-DD vehicle. o_O

    Whatcha guys think of this approach for cleaning secondary ports - I've already done a scrubbing with old toothbrush using carb cleaner (sprayed onto brush, not into ports) so there shouldn't be much left to chunk off. But I plan to run clear tube down into bottom of each port with a shop vac on other end. Will start vac and hit ports with carb cleaner a bit, leaving vac on for a few seconds.

    Also, I had a couple of the injector connector push clips pop off years ago when changing valve cover gaskets. Taking them off this time, all remaining clips broke right off. I suppose this is normal? Any history of this being an issue (IE coming loose while driving)?

    I may be just a weakling, but that fuel rail isn't going anywhere. I know I said I was going to leave it alone, but wanted to clean down deeper. Looking at the angles that the injectors are sitting at, it's hard to imagine that it's even supposed to just pop off. I can see why the o-rings are at risk from doing that.
     
  5. 99sho-time

    99sho-time SHO Member

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    You don't wanna flood the cylinders with cleaner and muck because youl end up having to pull all the spark plugs and flood mode it even if you try to vacuum it all out. The best way in my opinion to clean the butterfly's is to take it all off. give the valley of the engine and nice cleaning inspect those knock sensor connectors they get real brittle. Those cometic gasket on the LIM are re usable just clean them very very well.

    Theres no harm imo giving a nice little touch of penetrating oil on all those injector O-rings. Cant be afraid to pry the fuel rail off just be easy and consistent.
    Putting it back on, just make sure all the injectors are lined up and in the fuel rail then start pushing it down methodically.

    your doing a big job cause its sho.

    as far as the injector connectors i have been driving with a few broken that were on my new harness its okay but better safe than sorry just solder some new ones in.
     
  6. 98SF19

    98SF19 AlphaKennyBuddy

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    I'm in the process of taking an alternative route . . . I said Eff you to the damn fuel rail and now I plan on disconnecting fuel lines (when $7 kit from Amazon comes in that has the round tang releasers for fuel lines). Any issues with going this route? To clarify, I'm leaving the fuel rail on injectors (on LIM) along with pressure regulator and connected hoses. I already have the LIM loose from the block and . . . DZAMN!! The area down near the valves is CRAZY dirty. I actually saw what looked like white stuff too. WTH??? I know the deeper down I go, the less likely I'll get a nice normal start after reassembly. But hey, this has needed doing for a while now, and if I plan on keeping car much longer, it's gotta be done. I noticed on each butterfly plate there are 2 Philipps head screws. Perhaps removing these along with the plates is what is meant by "drilling out" secondaries? Removing shafts altogether would be nice, but requires perhaps more extra work than it's worth. Primary ports already have the shaft going through per original design.

    Injector connectors - letting them ride for now.
     
  7. 98SF19

    98SF19 AlphaKennyBuddy

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    Man it's great working on the SHO when it's nice and cool outside . . .
    Butterfly plates (8) and shafts (4) are out. Shaft holes filled with JB Weld putty (between primary/secondary port pairs). It was actually kinda easy, but I'd be happy to make a post with pics on how I went about it if anybody wants . . . Nimz had it right many years ago, though he didn't go into a how-to here: https://shoforum.com/index.php?threads/butterfly-valves-bored-out.111892/#post-1211060

    Re: cleaning down to the valves - Nimz had that one right too. Best way to go about it is with a few cans of carb/intake cleaner spray, a +/- 6" long narrow paint brush with long stiff bristles, a few rolls of paper towels and shop towels, and your fingers. Between this and LIM, I've run through about 4 cans, and I'll probably run another 1/2 can on a final cleaning of valves before starting reassembly.

    Once intakes put back together, it's onto jerry-rigging the catch can. <Sigh> . . .
     
  8. 99sho-time

    99sho-time SHO Member

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    I can't say i enjoyed cleaning my valves it was a pita and the fact that you can't clean the exhaust valves makes me nervous about causing weight differences.
     
  9. 98SF19

    98SF19 AlphaKennyBuddy

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    LOL. The enjoyable part I was referring to was performing surgery on the LIM. It was a joyous moment when, looking down at the bottom face just after having removed the plates, I realized that the shafts didn't need to be cut up, they just slid right out once springs were unhooked from the LIM block. Had to pull out the W clips that hold each pair together, but overall, it was a pleasant surprise.
     

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