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  #16  
Old January 6th, 2018, 18:46
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Ecomike Ecomike is offline
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Re: Reviving a 1989 XJ after 15 years in storage

I have never had or seen a bent push rod in person.

I would replace the valve seals. They should be in / come with, the head gasket kit, along with the the intake-exhaust gasket and a thermostat gasket.
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  #17  
Old January 6th, 2018, 19:20
IntrepidBear IntrepidBear is offline
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Re: Reviving a 1989 XJ after 15 years in storage

Yeah, neither had I until now. I had 4 bent push rods all on the inlet valves. Valves were stuck so badly that I had to tap them out with a punch. Exhaust valves were all fine.

On inspection, they were caked in black tar like stuff on the top surface and stem, this was the glue binding them up. Paint thinners dissolved the black stuff pretty easily, and I was able to get them cleaned up.

I dropped the tank today, and found more black stuff in the tank. I rinsed it out with lacquer thinners twice and then with water and detergent probably 20 times, until I didn't get any more sediment. Rinsed twice with 100% ethanol to absorb the water. In the morning I'll finish the process with a gasoline rinse and line flush......what a pain in the behind.

Thanks for the tip on the valve seals. I checked, and you are correct that the set I ordered comes with them. Now I just have to wait for it to get here.
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  #18  
Old January 7th, 2018, 11:05
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Ecomike Ecomike is offline
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Re: Reviving a 1989 XJ after 15 years in storage

What kind of fuel are you using down there?

Even the 10% ethanol gas here in the US over time dissolves the old rubber used in the fuel pump assy parts and fuel hoses!!!!

Now they use a better material, mostly viton....

This what mine looked like, and the black goo was all over the inside guts of the fuel tank, so I replaced mine. It was like tar. The rubber they used back 30 years ago was not meant for ethanol. Found the hoses on my diesel in the same mess last year, tanks to the biodiesel additive. They were like chewing gum. It's all Viton ID tube now.

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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #19  
Old January 7th, 2018, 11:11
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Re: Reviving a 1989 XJ after 15 years in storage

Adding acetone, or MEK or equal as a fuel additive could carry all that crap into the intake manifold!!!! Or using a bunch of seafoam in the intake manifold if it dissolved and dumped all that crap on the intake valves just before turning the car of for months could do that.

Thanks for sharing, never knew that was possible to bend the push rods just from that kind of muck.

If I were you I would replace the fuel pump and level sensors assy, and fuel pressure regulator on the fuel rail and at least flush the injectors since that crap had to get into the guts of those.

What does the intake manifold interior look like???? Could it still have a bunch of that carp ready to do it again?
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #20  
Old January 7th, 2018, 20:38
lawagoneer lawagoneer is offline
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Re: Reviving a 1989 XJ after 15 years in storage

I didn't bend any valves in my 89 when I revived it but I killed a fuel pump with crap sitting in the tank by not pulling it and cleaning it. Thought it was going to be a pain but it was really easy. I have the tank skid plate and trailer hitch that I had to drop. Then dropped the tank emptied the remaining gas/crap that I could the cleaned it out with acetone. Once dried I reinstalled the fuel pump and put it with the hitch and skid back in. The whole process took me about 2 hours working easy.
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  #21  
Old January 8th, 2018, 08:36
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Re: Reviving a 1989 XJ after 15 years in storage

2 Hours? Braggart, LOL. Took me 2 months .

Most of that was procrastinating, shopping and waiting on parts, tried to fix it the easy way, LOL. Did not know about the crud in the tank till we dropped it and pulled the pump and found what a mess it looked like, then looked in the tank and freaked out. Tried for ages to get the cover off the tank and the pump out with out dropping it. Damn near could not get off with the tank removed. Had to cut the mounting straps and bolts off and replace them. I Replaced every thing, nothing got reused. So far the fuel lines, and FPR and injectors are OK on that rig.

Quote:
Originally Posted by lawagoneer View Post
I didn't bend any valves in my 89 when I revived it but I killed a fuel pump with crap sitting in the tank by not pulling it and cleaning it. Thought it was going to be a pain but it was really easy. I have the tank skid plate and trailer hitch that I had to drop. Then dropped the tank emptied the remaining gas/crap that I could the cleaned it out with acetone. Once dried I reinstalled the fuel pump and put it with the hitch and skid back in. The whole process took me about 2 hours working easy.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #22  
Old January 8th, 2018, 08:58
lawagoneer lawagoneer is offline
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Re: Reviving a 1989 XJ after 15 years in storage

I found the crud in my tank after replacing the fuel pump without dropping it. Worked for about 3 minutes before dying. Got another new pump, had already replaced the filter and necessary fuel lines with the first pump. Point to think about it was quicker and easier to replace the pump with the tank out than in the vehicle, for me at least. When I dropped it I know what I was going to do. My XJ is almost rust free as well, that makes a big difference.
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  #23  
Old January 8th, 2018, 09:12
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Re: Reviving a 1989 XJ after 15 years in storage

I did not want to drop the tank, and I was partly right about not wanting to as the mounting nuts would not come off of the bolts (bolts were bent I think, or threads damaged, it was not rust), had to cut the bolts and one strap. Then I had to go find replacements, vent valves, hoses, level sensor and the tube assy and wiring (already had 3 new Bosch pumps in my stash), gas tank, bolts and straps....

Once we got the tank open, I decided to just replace it (found one dirt cheap delivered on Amazon prime for something crazy like $70)?

But after about 6 attempts at getting a tool to fit the flange-seal, and then getting cruizer54 to make me a tool to force the cover ring off, I had to give up and drop the tank anyway.

Quote:
Originally Posted by lawagoneer View Post
I found the crud in my tank after replacing the fuel pump without dropping it. Worked for about 3 minutes before dying. Got another new pump, had already replaced the filter and necessary fuel lines with the first pump. Point to think about it was quicker and easier to replace the pump with the tank out than in the vehicle, for me at least. When I dropped it I know what I was going to do. My XJ is almost rust free as well, that makes a big difference.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #24  
Old January 15th, 2018, 04:19
IntrepidBear IntrepidBear is offline
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Re: Reviving a 1989 XJ after 15 years in storage

Guys, I just wanted to post an update.....the jeep finally drives!! AND I think it shifts properly.

The fuel residue was really nasty stuff. Not only did the tank get a good cleaning, I also had to scrape the residue from the inlet ports on the block, and the inlet manifold. Thanks for the tip Ecomike! The hot bath/clean did not remove the deposits. I had to go through each port with a small pick and solvents to get it all out. Had to flush the fuel line, soaked and flushed the injectors.

Put it all back together, and cleaned all the grounds, and turned the key, and it runs! The engine sounds healthy, now I have a minor coolant leak to resolve and I should be able to take it for a proper road test. Man what a pain in the butt this job has turned out to be.

Thanks for all the help/advise.
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  #25  
Old January 15th, 2018, 12:50
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Ecomike Ecomike is offline
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Re: Reviving a 1989 XJ after 15 years in storage

How did you get it out of the guts of the intake manifold?

Acetone should have worked well. But dries very fast. Hard to work with. Aircraft paint stripper might have been the best to use.

Congrats on the reviving.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #26  
Old January 18th, 2018, 05:19
IntrepidBear IntrepidBear is offline
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Re: Reviving a 1989 XJ after 15 years in storage

I used a mixture of gasoline and lacquer thinner with a small stiff brush and a pick. It took ages. Thinner cut the solids better then gasoline, but evaporated too fast to work with, so I alternated between gasoline and thinners.

Unrelated question: the barn where I stored it had fruit bats living in it. It appears that the droppings have etched the windshield pretty badly. I have never run into this before, but I am trying to get the marks off with little success so far. Any ideas on what to try? I have cleaned, washed, used detergent, used very fine steel wool, razor blade all to no avail.
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  #27  
Old January 18th, 2018, 21:09
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Re: Reviving a 1989 XJ after 15 years in storage

Try a solvent based, paste style paint stripper? But it sounds like the acid in the bat droppings etched the glass.
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Quote=8Mud: "Go ahead and put up the best fence you can build, I'll bet on some Mexican with a few dollars of nails and a pile of scrap lumber."
34 MPG , '85 2WD Cherokee Pioneer with custom installed, 64 hp, 2.2 L Nissan SD22 Diesel 5 spd Manual; & 4 Renix XJs, '87 Wagoneer 4.0, 4WD, 89-Cherokee, 4WD, '87 Cherokee 2WD, & '89 Cherokee Pioneer 2WD, all 4dr. #2091
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  #28  
Old January 18th, 2018, 21:46
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Re: Reviving a 1989 XJ after 15 years in storage

Get a new windshield. This thread is driving me batshit.
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