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'88 Justy issues


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Trying to run some sort of diagnostic on my 88 4wd justy. Just got the thing and boy does it run rich/burn oil. Replaced the o2 sensor and things improved, but if I get over 3500 rpms in any gear, smoke comes out the exhaust. Puts around just fine but I'd like to be able to use a larger range of rpms. Right now the thing smells like a go kart if I get the engine revved up! 

 

Second, it just won't idle at first. Cold or hot, the first 2 minutes after starting up involve me keeping it alive. Then eventually it will idle at 1200. Just wondering if it's the choke and how to adjust or install a manual choke if necessary. 

 

Was thinking about sending the carb to be rebuilt, but before I spend that money I wanted to poke around here. Thanks, and I can take pictures/ record video if that would help at all.

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Hey bobchees3, I saw your post over on the Justy website too.  Before you send the Justy carb to be rebuilt, I would recommend just replacing it with a Weber 32/36 DGEV for an ea82 engine.  It would be an upgrade, they are new, they are a lot simpler, and would be about the same amount of money as rebuilding the Justy carb.  I have worked on a lot of Hitachi carbs and I have an '88 Justy myself.  The Justy Hitachis are simply not very serviceable.

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Thank you Ferox, King of the Echo People. So I should be able to just swap that weber carb with the one I've got right now? Saw a post over at the orig justy forum where someone had to modify the air filter, manifold adapter and throttle linkage. Am I going to need those parts as well?

 

Found a 32.36 DGEV kit on amazon, but it says it's for a toyota pickup. Looks the same as what I'm seeing on justy forums though...

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Thank you Ferox, King of the Echo People. So I should be able to just swap that weber carb with the one I've got right now? Saw a post over at the orig justy forum where someone had to modify the air filter, manifold adapter and throttle linkage. Am I going to need those parts as well?

 

Found a 32.36 DGEV kit on amazon, but it says it's for a toyota pickup. Looks the same as what I'm seeing on justy forums though...

 

So they Weber will have a completely different air filter that will not require modification.  There will be things connected to the old air filter that you don't need, so there are things to remove and cap, but the air filter does not actually need modification.  I would recommend buying a Factory Service Manual for an '88 if you can find one.

 

The Justy shares the same carb base pattern as the Subaru GL with the ea82 engine.  What you really need is the adapter plate (which comes with the kit or can be purchased separately) because the Weber is kind of a universal carb.  The Weber kit for the ea82 should come with jetting that is close enough to use on the Justy as well so there's another added benefit.  If you are not familiar with carbs, a new kit is probably a better choice.

 

The throttle lever from the Justy Hitachi should bolt onto the Weber throttle shaft, so your stock throttle cable will work.  You might have to modify the bracket that holds the throttle cable, but that's not difficult and the Weber kit usually comes with a couple extra brackets.

 

Here's the kit I am referring to (K731):

 

http://www.redlineweber.com/carb-kits/auto/subaru/

 

If you on not comfortable picking one up online, ShawnW on this forum can hook you up I'm sure.

 

If you're not familiar with cars and carbs, there will be some challenges and learning experiences, but it's totally doable.  Also, you stand a much better chance of finding a mechanic that is familiar with the Weber 32/36 than the Justy Hitachi if you get it installed but have difficulty getting it dialed in or something.  Be prepared for you Justy to have noticeably more power after it's dialed in.

Edited by ferox
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  • 2 weeks later...

Ok, final question, before I order it. Even though redline says the weber only fits up to '87s and mine is an '88, will it fit? This is what I'm looking at, and it seems to include the adapter: 

 

http://www.ebay.com/itm/Subaru-1985-1987-1-8L-OHC-EA82-Weber-Carb-Conversion-/331100259795?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d171d05d3&vxp=mtr

 

Thanks again.

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if I get over 3500 rpms in any gear, smoke comes out the exhaust. Puts around just fine but I'd like to be able to use a larger range of rpms. Right now the thing smells like a go kart if I get the engine revved up!

pcv setup wrong ?? worn valve seals ??

Edited by Carmen
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I dont know where this is at, but any carb this old will be due for a rebuild. If you dont do it yourself find a reputable local rebuilder. I sent mine to be rebuilt and it cam back missing internal parts.

 

I would suggest a valve adjustment as it makes a big difference on these cars. Have you ever replaced the timing belt?

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I dont know where this is at, but any carb this old will be due for a rebuild. If you dont do it yourself find a reputable local rebuilder. I sent mine to be rebuilt and it cam back missing internal parts.

 

I would suggest a valve adjustment as it makes a big difference on these cars. Have you ever replaced the timing belt?

Planning on swapping in a weber soon. timing belt is new but a valve adjustment is up next. Bummer about your carb...

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