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Unread 11-21-2012, 11:25 AM   #1
93JGC5.2L
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1993 ZJ 
 
Join Date: Sep 2004
Location: PA
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Firing up the ZJ again

We'll I have a few days off an figure I'd see if I can get the Jeep running again. She's been sitting in the driveway for 4 years. I think the gas tank was mostly full when parked. I've got the battery on a charger. Should I just toss that in and fire her up or do you guys have any suggestions before I try and crank it over? I've heard trans fluid down the spark plug holes, etc but those were on inline motors, I don't think it will do much on the v8 (5.2L) with how the cylinders sit.. Oil was changed before it was parked and other fluids still look good. Thanks in advance!

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Unread 11-21-2012, 12:28 PM   #2
RagTagSoldier
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Might want to add water remover to certain fluids depending on how the look. But you said they look good so if everything looks to be in order (fluids belts shafts. Really anything that will be moving.) I would personally giver a go.

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Unread 11-21-2012, 12:31 PM   #3
Scopez
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Maybe siphon out the old gas and put some fresh in. Make sure oil looks good. Check hoses for cracking/dry rot.
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Unread 11-21-2012, 12:51 PM   #4
93JGC5.2L
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Quote:
Originally Posted by Scopez View Post
Maybe siphon out the old gas and put some fresh in. Make sure oil looks good. Check hoses for cracking/dry rot.
I'd love to siphon out the old gas but I don't really have a place to store 20 gallons of old 87. Good call on the hoses. I need to clean a lot of leaves and pine needles out of the bay so I can do that when I'm in there.
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Unread 11-21-2012, 12:56 PM   #5
Scopez
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Quote:
Originally Posted by 93JGC5.2L

I'd love to siphon out the old gas but I don't really have a place to store 20 gallons of old 87. Good call on the hoses. I need to clean a lot of leaves and pine needles out of the bay so I can do that when I'm in there.
Hmmm. Got 20 milk jugs? Lmao. Maybe just dump some octane booster in there and rock the jeep side to side so it mixes alittle.

Turn the key on, let the fuel pump prime for 3-5seconds, try and start the Jeep but only bump it, don't hold the key forward. Do that a couple times so fuel is in the fuel rail. Then start the Jeep. Make sure the battery is good and charged.
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Unread 11-21-2012, 01:16 PM   #6
93JGC5.2L
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I also read someone suggested disconnecting the coil and cranking the key a few times to prime the oil system. I guess by biggest fear is breaking the rings if they have rusted to the cylinder wall. IIRC, it still has a bad plenum gasket, maybe there was enough oil in there when I parked it they should be ok? lol
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Unread 11-21-2012, 01:18 PM   #7
Scopez
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Quote:
Originally Posted by 93JGC5.2L
I also read someone suggested disconnecting the coil and cranking the key a few times to prime the oil system. I guess by biggest fear is breaking the rings if they have rusted to the cylinder wall. IIRC, it still has a bad plenum gasket, maybe there was enough oil in there when I parked it they should be ok? lol
I have zero experience in doing that. My ZJ has sat for 8months without starting. But I'm only at 107k miles. How many do you have?
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Unread 11-21-2012, 01:22 PM   #8
ramthis426
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how about some photos
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Unread 11-21-2012, 06:50 PM   #9
Nejeep
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Quote:
Originally Posted by ramthis426 View Post
how about some photos
Or better yet a video so we can hear all the strange noises it makes
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Unread 11-21-2012, 07:20 PM   #10
RagTagSoldier
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Quote:
Originally Posted by Nejeep View Post
Or better yet a video so we can hear all the strange noises it makes
win
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Unread 11-21-2012, 08:47 PM   #11
G-Man2
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I think you will be asking for trouble if you do not get the old gas out first. It will likely be gummy and cause trouble with the entire fuel system if you try to run it through.
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Unread 11-22-2012, 11:44 AM   #12
93JGC5.2L
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Pulled the plugs and borrowed a friends bore scope. Plugs look good and the cylinder walls are clean. She's got 73k original miles. I'm expecting a lot of smoke. If it kills the motor, the whole thing is going to get scrapped. The body is worse than I remember. Part of me says fix it part of me says move on. Surprisingly the gas still smells like gasoline I'm throwing a battery in it and turning the key.
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Unread 11-22-2012, 11:57 AM   #13
jt_armstrong
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If its not too late i would do as has already been suggested and pull the coil lead and crank her first. Check that you have oil pressure. When you do, reconnect the coil and go for it. I do this regulary with the jeep i have in Sweden. She always starts like i had just turned her off.
Dont forget the video.
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Unread 11-22-2012, 02:45 PM   #14
93JGC5.2L
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It's alive! I primed it by pulling the coil like you guys said. Also, it wouldn't start in P but it does in N so I'm thinking there might be a bad switch somewhere on the shifter. And it needs a new right front brake hard line, the pedal went straight to the floor once the booster got vacuum.
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Unread 11-22-2012, 04:04 PM   #15
1stblack97ZJ
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Quote:
Originally Posted by 93JGC5.2L View Post
It's alive! I primed it by pulling the coil like you guys said. Also, it wouldn't start in P but it does in N so I'm thinking there might be a bad switch somewhere on the shifter. And it needs a new right front brake hard line, the pedal went straight to the floor once the booster got vacuum.
probably the neutral safety switch.
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