1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

So I'm a Subaru owner....

Discussion in 'Microvans' started by Krieger-san, Aug 27, 2011.

  1. sigkrist

    sigkrist New Member

    The petal play as i understand it is free play at pedal. the 3 to 5 is free play at gearbox clutch fork. adjusted on the cable. My 92 had a water controlled choke. had a problem with idling at a time and found out faulty vacume valve located left to the "hood" bumper lock + the lines to it. The symptoms were that i had to give it gas to keep running all the time cold or hot. if i losen the lid on air filter just a bit so it get small air in there it runned ok. as i remember one line from the valve was connected to airfilter house. Cant se it now becouse it burned. You can see the valve i am talking about in this photo. 87_n.jpg

    Love the vid on youtube, but it sounds like its a bit of time one ore tvo nods or so or somthing stuck in ignition.
     
    Last edited: May 10, 2012
  2. Krieger-san

    Krieger-san Member

    I know that valve. Mine looks fine. I actually did some work around it. I took off the 2 brackets that hold it on the van, power-brushed them, sprayed them with Zn/Al spray and then brushed a few thick coats of paint on them. Rustproofed the bejesus out of them. Since those brackets were ground contacts, I left the electric contact areas covered only in ZN/Al spray, no primer paint. They were very VERY rusty, now they are looking great and I'm sure the ground works better as well.
    My carburetor(single barrel Hitachi, water controlled choke) must be taken apart and cleaned. It runs rich at the moment and it's unresponsive to adjustment.
    I have no idle when cold. I must hold the gas pedal pressed, otherwise it dies off. The engineer who took a look at my engine said that there should be a spring connected to the choke plate thing holding it open. A spring that is missing, of course, and I have no idea how big or hard it should be. I will make a video about this.
    Also, I have to press the gas pedal when I push the ignition button(yes, my van has an ignition button). I think gas should flow automatically, without me pressing the pedal.
    I also have to adjust the throttle plate cable(lots of slack in the cable, only opens up like half way), but I think I'll do that after I get my carb in order.

    Now, about the clutch. I think it would be easier to set it right if you give me a measurement. How long is the end of the threaded rod behind the adjusting nut on the fork? I think it would be easier that way. I tried a whole lot of setups today, I got the muffler and cat hot in like seconds and it got really hard to work there.
     
    Last edited: May 10, 2012
  3. paulhills

    paulhills New Member

    Hi great thread,.. keep the posts coming :)

    i have a 1991 1.0ltr subaru sumo (uk model) which has developed a carb problem,.. have you managed to find somewhere to get a carb kit from? i have cleaned mine out but it is still causing issues, so i think it might be worth changing the valves / float / etc
     
  4. Krieger-san

    Krieger-san Member

    Hello there! Glad to hear that you like my thread. I will try to keep it up to date.
    As a matter of fact, I just shot a small video showing you guys what have I've done the last few days and the problems that I'm facing at the moment.
    Not much progress, the weather is really nasty(it rained A LOT and it's ON and OFF... really annoying).
    Will upload the video on YT tomorrow and post the link.
    Now, how 'bout your carburetor? I don't know what do say. Mine's an automatic choke. To be honest, I'm not really into carburetors, I prefer EFI. Needless to say, I'm not really good at fixing them carbs. That's exactly why I want to call an expert to help me work on mine. Never worked on a Hitachi, so I don't want to do any damage.
     
    Last edited: May 17, 2012
  5. Krieger-san

    Krieger-san Member

  6. Krieger-san

    Krieger-san Member

    Does anyone know if the starter on the Subaru Libero comes with shim(s)? I don't remember having one, but I found this piece of metal thingy inside the van that kinda' looks like one(except it has no holes big enough for the bolts to go through).
    The repair book schematics don't seem to show any shims, but I'm a really paranoid guy. Could it just be improper cranking due to low current which in turn is due to the corroded power lines and the cheap twist-on fix on the ignition wire?
    Will try and finish rustproofing the battery box next time I go to the ranch, put the whole damn thing together and try it out. That if the paranoia doesn't gets me first. Seriously, it's starting to mess with my head.
     
    Last edited: May 21, 2012
  7. paulhills

    paulhills New Member

    hi krieger, i have a 1.0 sumo, so its not quite the same,. but i believe the pipe you are holding at 3:50 is a breather / overflow pipe for the transmission fluid. my van has a thick yellow coloured pipe coming from there to towards the bumper, where it is attached by a kind of cable tie to another pipe by the starter motor & distributor. i do not think you need to worry about finding somewhere for this pipe to attach to.

    DSC01445.jpg
     
  8. Krieger-san

    Krieger-san Member

    Truth be told, I did thought of that possibility. I kinda' decided to deny it because I don't really think that gear oil can expand that much when hot.
    THEN AGAIN, my XR4Ti has a little similar something something on the differential. It's a little black rubber hose that stands up and it's attached to the chassis. When the oil expands, it goes up, when it cools down, it flows back down into the diff housing.
    Thanks a lot :) !
     
  9. paulhills

    paulhills New Member

    regarding the pipes on the carb, you have several for the fuel and several vacume pipes. you have the 1.2 so it looks like you have more pipes than me. but i think the pipe you are holding at 8:31 is actually part of the fuel system. if you remove the rear panel inside the van, you will see the fuel seperator:

    DSC01517.jpg

    (to be honest i dont know what this does) but if you look at the pic of my fuel lines:

    carb pipes.jpg

    you can see that the top 2 pipes are your fuel in and fuel return for your carb. the other pipes go into the fuel seperator. here is a diagram of the piping:

    fuel line diagram.jpg
     
  10. Krieger-san

    Krieger-san Member

    I got the fuel lines figured out(at least the important bits), it's the vacuum lines that bug me.
    I fiddled with the fuel inlet and fuel return lines myself, replaced the rubber section with brand new hoses(especially for gas, not regular) and I installed a new paper filter.
    I have no idea what does that fuel separator/epurator/whatever thing does or how it works, but I try and stay clear of it. I do have that listed in the Repair Manual, there are some schematics there. It's in German, so I didn't read it, therefore I'm not sure what is supposed to do.
    Will make sure to clean and rustproof all the components that are exposed to road debris, but I won't take it all apart. The fuel system runs fine. It's the carb is the only faulty part. It's dirty and it has wacky vacuum lines. No choke and no cold idle.
    Tell me if you want me to send you those pics from the German repair manual regarding the manual choke carb.
     
  11. paulhills

    paulhills New Member

    i think the pipe you refer to at 8:31 as a vacume pipe, is not actually a vacume pipe, but part of the fuel seperator system. i really do not understand how the seperator works, because as far as i can see no fuel actually goes through it (not on my van anyway) im guessing it is to do with fuel fumes? but i think the pipe you are holding is the fuel pipe i have highlighted in red:
    fuel line diagram.jpg

    vacume lines.jpg
    my van only has 2 vacume hoses. 1 from the carb to the distributor and 1 from the carb to the manifold. they are probably the same on your van, so maybe once you have those in place you can work out the extra ones you have?
     
  12. Krieger-san

    Krieger-san Member

    I'll be... your carb looks neat. And it's so cool not having all those vacuum lines all over the place. On my van, I've got vacuum lines going to the intake manifold, to the air cleaner, to the distributor, I've got some of them going deep down towards the front of the car(I think those are for the 4WD system), etc
    I'll check the Repair manual for some fuel separator schematics, maybe I'll find something.
    I also think that the fuel separator has something to do with gas fumes, but I find it really weird. I never seen such a thing on a car. Then again, I'm no genius mechanic, I'm still learning.
    Thanks!
     
  13. Krieger-san

    Krieger-san Member

    Checking the schematics right now and checking the translation with Google Translate, this fuel separator thing is really starting to look like a viable answer.
    I remember crawling under the car and finding out that the said rubber hose goes down under that thing behind the black metal cover(same as the battery cover, but on the right side). There are several lines there and that one was the first one on the right.
    That's it, tomorrow morning I'm crawling under again and taking the camera with me :) .
     
  14. paulhills

    paulhills New Member

    im afraid i have never dealt with the 4wd.. so i am not much used to you for that. i think the justy used the same 4wd drive system (gear lever button) so it might be worth looking up justy forums / diagrams to see if they are any help. if there is anything else you have problems with, let me know and i will see if i can help. one thing i would say is check your exhaust manifold. it is cast iron and i have had 3 (from ebay) all cracked in the same place,.. had it welded for its last mot, but the weld has cracked off, subaru want £350 and it will take up to 6 weeks to ship from japan,.so i think its time to get a stainless steel custom one made!
     
  15. paulhills

    paulhills New Member

    good luck with the seperator tomorrow! let us know how you get on
     
  16. Krieger-san

    Krieger-san Member

    The 4WD system is an entire new chapter. A new adventure if you will. Will sort that too.
    I have faith in this engineer guy that I just called to help me take the carb apart, maybe he'll manage to do the vacuum lines properly when we're gonna put it back together. Hopefully, that will allow the 4WD system to work. The electric part of it seems to work(I can here a click somewhere deep down when I push the button), but the bulb on the dash doesn't come on. I never actually driven it, so I don't know if the front axle engages or not.
    Also thanks for the advice on the exhaust manifold. I will be more careful with it. I didn't notice any leaks, noises or visible cracks on it. I know cast iron manifolds can be a pain, my dad had some problems with the one on his '96 Mondeo. He welded it, put some exhaust manifold crack repair putty on top, no problem ever since.
     
    Last edited: May 21, 2012
  17. Krieger-san

    Krieger-san Member

    Hello again! First off, let me thank you for the friendship invitation. Appreciate that, I really do :) .
    I whipped out the cellphone camera this morning, took 2 short videos of that troublesome rubber hose. Will most likely scrap them(bad sunshine light) and make a new one tomorrow.
    That hose really looks like it's a part of the fuel separator system. There's a bunch of rubber lines going down and they go onto thin metal pipes(similar to the schematics that I found in the repair manual). The broken hose goes in the first one on the right side of the car.
    I took a sniff at the end, it didn't smell like gas. Will try and figure out where is supposed to be attached. I do have a loose nipple on the carburetor, it's a L shape nipple right behind the throttle body. Since that's the only one I could find without a hose in it, that one is my primary suspect(for the moment).

    In another order of business, I got home from the ranch where I did manage to paint the battery box and the air box. I used some marine/industrial tar like rustproof paint for the battery box and some silver heat resistant paint for the air cleaner box. The silver color was not my idea, but it was the only color available in heat resistant paint. I will however achieve some sort of a sweet color scheme. Since the cover of the air box will not be that affected by heat, I used some normal red-ish industrial primer paint on it. I painted the nut silver and I will do all lettering/logos with the complementary color. It's gonna be sweet.
    Also, I'll be able to spray it BLACK any time I want.

    In yet another order of business, I want to ask you something about a relay box inside the car. It's a tiny little black relay box bolted on the car right behind the driver's door. Someone kicked it in the passed, broke the attachment part and used some electrical wire to tie it up and out of the way. I wanted to try and glue it back together on the bolt and I pulled one of the wires out. Now I'm not sure if I put it back on the right pin(I'm clueless when it comes to relays and electronics). Will definitely make a video on that tomorrow. The relay has some notifications on it next to the pins, but I don't understand them.
    Thanks a lot for your support.
    Good night!
     
  18. sigkrist

    sigkrist New Member

    HI guys. i just started cleaning out the engine room in my Sub E12 Columbus 1991 after the fire, and starting to put in 1997 engine with injection, just checked the lines and stuf that is still ok in there and took að pic. there is one big and one thine vacume line from the fuel vapor seperator, and one big that goes in to the fuel tank. It basicly work in that way that at hi vacume the seperator take the fuel vapour from the tank in to the intake manifold it is controlled by the thin vacume line. The tupe from the gearbox is ventilation and just goes do down the site of gearbox. took a pic of it.
    I also took a pict of 4wd system may be it can help. I remeber 2 cars that the wiring to the solenoids (there að 2 solenoids) did break and there fore no 4wd in both the wire broke rigt at the connector. The starter in my E12 has 2 shims.
    xperia 001.jpg xperia 002.jpg

    Ill be watching the thread and asking for help while i be
    mixing to gether the electrical/vacume system from 1997 to my 1991.

    Se yoou
    Sigkrist
     
  19. Krieger-san

    Krieger-san Member

    Shims? How/where are they attached? I never got the hold of this.
    If you can, please make a photo of those too so I know what to look for. Thank you.
     
    Last edited: May 23, 2012
  20. Krieger-san

    Krieger-san Member

Share This Page