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Post by Raw Justyce! on Dec 8, 2009 17:28:28 GMT -5
No parts store have one, their suppliers don't make them, and the two dealerships I called had no idea what I was talking about. One of them didn't know the justy was a 3cyl... Who hires these people?
SO! Has anyone ever repaired there own before? The fitting for my vacuum line broke off the box portion. Now I'm going to be experimenting with repairing, and don't want to screw up the only one I have.
Has anyone ever replaced one of these before? There are some threads that mention it, but no one wrote out exactly what they did; pretty much just came out like "My idle-up solenoid is broken. Now its fixed."
Cars been down for 2 weeks now, starting to get a little stir crazy not being able to leave the house.
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Deleted
Deleted Member
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Post by Deleted on Dec 8, 2009 22:07:53 GMT -5
... the two dealerships I called had no idea what I was talking about. Unfortunatley this is not uncommon The fitting for my vacuum line broke off the box portion. Unfortunately this is also not uncommon Has anyone ever replaced one of these before? On other older Subarus people have replaced these with corresponding parts from Nissans, Toyotas, and I think BMWs. They tend to be a little burlier on the other makes. It is just a matter of finding that part on the other car. It would definitely be nice to find some alternates for this part because they break easily and not infrequently. I unfortunately don't have any more information than that. I will say that they are a fairly straightforward part that generally isn't very complex. Nissans of similar vintage seem to be the closest match.
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Post by Raw Justyce! on Dec 9, 2009 2:17:33 GMT -5
Thanks Ferox I'll be checking that out pending my part surgery tomorrow. At the rate that car has been eating cash, I'm going to try fixing it before I buy something else. I'll be headed to basic in a few months, and see no need to keep hemorrhaging money.
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Post by Raw Justyce! on Dec 9, 2009 18:17:08 GMT -5
Just out of curiosity: What does this part actually do?? I looked at a bunch of different ones, and they all seem to relate to A/C, or increasing idle while the car is under a load. Its never been connected before, and my car ran fine. I also don't have A/C... What in the heck is wrong with my car??
Trying not to get frustrated, but needless to say when I popped it back on: Nothing happened. The car won't run when warm. I'm trying a manual choke next. I've never had a choke on the car to begin with, but I dunno what else to do.
LOSING MY MIND!
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Post by Raw Justyce! on Dec 10, 2009 22:25:04 GMT -5
Bump.
Still want to know what an Idle-up solenoid does.
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Deleted
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Post by Deleted on Dec 10, 2009 23:14:42 GMT -5
The ECM takes input from the temp. sensor, heater blower, radiatior fan, rear defrost, and head lights and increases idle speed accordingly via the idle up solenoid and dashpot actuator on the carb. Basically.
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Post by Raw Justyce! on Dec 11, 2009 4:26:38 GMT -5
Ferox you're quite the asset to this board!
Is there a way to reset the ECU? Someone mentioned to me that I should try this since I replaced my carb, and did a lot with all the systems of my car. They're a tech at a local high performance car shop, but I figured maybe since our cars have late 80s technology instead of 2000s it may be different.
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Post by Scoobaru on Dec 30, 2009 10:54:22 GMT -5
I have said this a millionish times before, you can do without the idle up solenoid. As ferox said, basically when one of these "high load" accessories is on, the solenoid is activated to route vacuum to the dashpot on the carb that will theoretically increase the idle by a few hundred RPM. I have broken the nipple off one before, and tried to reattach it with JB weld, but you have to be careful you don't block off the passage on the inside. I finally took the idle up circuit out of the system (by plugging the vacuum line running to it, you have to leave the solenoid in place or you will get a check engine light) and compensated by tweaking the regular idle setting up a couple of hundred RPM. In my experience the idle tends to fluctuate anyway. I also went to a manual choke setup, this also removed a lot of clutter from around the carb.
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SeattleJusty
No, a boxer will not fit in a Justy.
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Post by SeattleJusty on Dec 30, 2009 13:39:17 GMT -5
Thank you for patiently mentioning all of that again Scoobaru. I am going to sticky this thread for about a month so that people can learn this bit.
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Post by Raw Justyce! on Dec 31, 2009 0:26:08 GMT -5
Thanks scoob.
Next time I'm in the car I'll take a picture of how I fixed mine.
Basically: 1. Drill out broken nipple 2. Press in short section of brass tubing; superglue in place 3. Slide a new plastic nipple over brass tubing to desired vacuum hose diameter. 4. ? ? ? ? 5. Profit
Oh and my car still won't run after putting in enough money to fully rebuild the engine. If you see a Viking funeral pyre on the news: That is me and the Justy calling it quits.
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SeattleJusty
No, a boxer will not fit in a Justy.
Posts: 1,587
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Post by SeattleJusty on Jul 21, 2010 15:13:50 GMT -5
I need someone to donate one of these busted off idle up solenoids to a cause. Please send me a PM (Personal Message) if you have such a damaged solenoid and are willing to mail it to me. None of mine are broken so I need a kind hearted person to donate theirs.
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henrypaz
PLEASE: easy way to install hitachi carb? it took HOURs for 2 front nuts last time!
Posts: 106
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Post by henrypaz on Sept 19, 2011 17:26:56 GMT -5
Friends- We could step back in time about 80 years to a knder/gentler/simpler technology, and take matters into our own hands! Are we not MEN? You could have a very rudimentary idle-up controller by using about 10 feet of rubber or poly hose and a pair of vise-grips or a small cheap clamp. A clothspin? Remember, ARE WE NOT MEN? If we can walk on the moon, we can fix a JUSTY!
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Post by Captain Nemo on Sept 20, 2011 22:36:59 GMT -5
and go fishing in one
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Post by skimo274 on Aug 9, 2014 10:55:39 GMT -5
Hey there, so I bought an 88 that has sat for a long time (tabs expired in 2000) so while fixing and tuning all that I can symptoms are fluctuating a lot.
Anyway, right now it starts right up (when hot wired) and idles incredibly high. Adjusting the throttle any lower puts slack on the cable and it will not idle.
I noticed the solenoid had been broken and the previous owner did a weird reroute on it and plugged it up.
So I got another idle up solenoid (broken nipple but probably operational.
How cani tell if it works properly before I install it and add a nipple?
My apologies if I mess up my forum etiquette, this is my first time posting/replying on a forum
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Post by sp0ngebob on Aug 15, 2014 16:09:00 GMT -5
first you do not adjust idle speed with the throttle cable. its a stop screw on the throttle rotor.
get that set, then set your ignition timing and idle mixture screw.
unless the lower portion of the dashpot is broken, you dont have a vac leak from the idle up solenoid.
you dont really need the idle up solenoid. it only does something when you have the lights, interior fan or some other electrical accessory on.
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Post by skimo274 on Sept 6, 2014 11:17:50 GMT -5
do you know how to delete the idle up solenoid?
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Post by fishman0142 on Oct 3, 2014 18:11:33 GMT -5
OK, so I recently purchased a 1988 Justy, it was completely missing its idle up solenoid. I tracked down a new one, but I cannot seem to find where it connects to the intake on the motor for the vacuum side of the solenoid. Does anyone have a picture or explanation of where this vacuum nipple is on the intake? All the diagrams and pictures in the service manual/on the car show it going around the back of the motor along the firewall and into the intake on the passenger side of the car, but I cannot seem to locate this hole. Also does the FICD for air conditioning leak vacuum from the vacuum side at the solenoid or should it be sealed/holding vacuum when off? Also does anyone know where to track down a new FICD?
Thanks, Austin.
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Post by skimo274 on Nov 30, 2014 3:02:04 GMT -5
OK, so I recently purchased a 1988 Justy, it was completely missing its idle up solenoid. I tracked down a new one, but I cannot seem to find where it connects to the intake on the motor for the vacuum side of the solenoid. Does anyone have a picture or explanation of where this vacuum nipple is on the intake? All the diagrams and pictures in the service manual/on the car show it going around the back of the motor along the firewall and into the intake on the passenger side of the car, but I cannot seem to locate this hole. Also does the FICD for air conditioning leak vacuum from the vacuum side at the solenoid or should it be sealed/holding vacuum when off? Also does anyone know where to track down a new FICD? Thanks, Austin. 1. I too need that answer about when it's open and closed, 2. What's that acronym for?
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henrypaz
PLEASE: easy way to install hitachi carb? it took HOURs for 2 front nuts last time!
Posts: 106
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Post by henrypaz on Dec 20, 2014 12:17:04 GMT -5
I too am having fast-idle problems. I have an 89 4WD GL with a carb from an ECVT trans car. I had to move a few bits from the original carb to make it work. I "THINK" I did that right, but not 100% sure. It was years ago. One place I did mess up was this--I didn't trust those little throttle shaft screws to hold the plate securely, and since it was such a critical situation, I put a TINY drop of penetrating Loc-Tite on each screw. Well, next day, that stuff had worked its way over to the carb body and nearly froze the shaft into the casting. I worked it back and forth 10,000 times with oil and WD-40 until it was as free as I could get it. The result? when I would put my foot in it going up a hill or just making a good 'get-away', it would stick at about 6000 RPM until I let off the gas/and turned off the ignition. Kind of awkward when your in traffic or going down the other side of the mountain! Over time, this has improved to the point of being non-existant. So that's what I did. My bad. Don't do that.
Presently, when I start my car cold, it comes up to about 2000 RPM as I am still sitting in the driveway. Once I start to drive, the idle doesn't drop below 3000 RPM, as long as I am going down the highway. As I arrive back home, after climbing a goodly hill, stop at my gate to unlock it, it will drop suddenly down to about 1000 RPM. Then it will cycle about every 30 seconds between 2000 and 1000 RPM, never returning to the 3000 point.
When it is in that state, the car responds to all the idle-up signals: headlights, heater fan, rear defogger. My AC is out of fluid, and wont turn on because of that.
I think the cycling nature is due to the temperature sensor input. I have not checked that yet. I am a bit afraid to, as the FSM has a warning about harming it by improper testing procedure. Any advice on that anyone? The thermostat is 180 degree I think ( low by OEM standard. ) My radiator is from a Honda Civic (fits right in there with a little mod to the hose outlet up top.), which might be a little bigger capacity, too efficient , and not letting engine get fully hot. Present mileage is looking pretty bad. maybe not going into closed-loop mode? Has a new air filter.
My carb has both the 2-stage idle-up dashpot thingy And the ECVT FICD adjustment screw. I wonder if these are in conflict somehow. maybe I should turn the FICD screw to as close to off as possible ( counter-clockwise/out ? )
I will sure appreciate ANY advice about taming that 3000 RPM glitch.
A little note to previous poster in this thread: FICD stands for Fast-Idle Compensation Device, and is used for both forms. The ECVT screw and the dashpot type. I am pretty sure the vacuum hose to the idle up dashpot type goes to one of four vacuum ports on the passenger side of the car under the carb on the manifold. You can't see where these go on my car very easily. I think you might have to remove some stuff to get to those ports.
Sorry to be so long winded with this, but thought someonne might chime in with a solution if they had all the facts the first time. Thanks to anyone wh can help.
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Post by brown on Nov 14, 2023 6:46:12 GMT -5
... the two dealerships I called had no idea what I was talking about. Unfortunatley this is not uncommon The fitting for my vacuum line broke off the box portion. Unfortunately this is also not uncommon Has anyone ever replaced one of these before? On other older Subarus people have replaced these with corresponding parts from Nissans, Toyotas, and I think BMWs. They tend to be a little burlier on the other makes. It is just a matter of finding that part on the other car. It would definitely be nice to find some alternates for this part because they break easily and not infrequently. I unfortunately don't have any more information than that. I will say that they are a fairly straightforward part that generally isn't very complex. Nissans of similar vintage seem to be the closest match.
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