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1980 J-10 Sportside Conversion

Posted: Sun Dec 28, 2014 8:22 am
by Greenmachine
Well I managed to do some trading and got me a J truck thats pretty much exactly what I wanted to start with. Its a 258 t177 and np208 shortbed with the brow and AC. I need to find a razor grill and swap the bench for the buckets in my parts cherokee.
Things to do....
1.Rebuild carb
2. Hei distributor
3. Window lift bar drivers side
4. Fix rust in drivers floor pan
5. New hoses belts and fluids
6. New brake soft bits and hard bits as needed
7. Tailgate handle linkage repair or replace
8. Tires
9. Fix all the rust and paint (someday)
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Re: 1980 J-10

Posted: Sun Dec 28, 2014 8:49 am
by jaber
Congrats, looks like a nice start. :-bd

Re: 1980 J-10

Posted: Sun Dec 28, 2014 9:22 am
by serehill
Yeah nice rig. Good start, I have an 80 with the same drive train.

Re: 1980 J-10

Posted: Sun Dec 28, 2014 10:02 am
by Landman_MTX
Nice rig! Great platform to build on :-bd

Re: 1980 J-10

Posted: Sun Dec 28, 2014 6:34 pm
by Atla
Oooo a/c!

Good find, sounds promising.

Re: 1980 J-10

Posted: Sun Dec 28, 2014 6:47 pm
by GO OVRIT
I like the grip spurs. They were the tire to have when I was in high school. L78s on white wagon wheels just look right on a J-10.

Re: 1980 J-10

Posted: Sun Dec 28, 2014 9:07 pm
by Greenmachine
Yeah grip spurs are cool too bad they are ancient....

Re: 1980 J-10

Posted: Mon Dec 29, 2014 12:14 am
by Tatsadasayago
Grip Spurs were THE TIRE in Montana until the swamper came out. Cenex/Farmers Co-op sold them and and most of my jeeps wore them. Great tire back in the day.

Re: 1980 J-10

Posted: Mon Dec 29, 2014 5:55 am
by will e
Great looking truck. Have fun with the build!

Re: 1980 J-10

Posted: Mon Dec 29, 2014 6:03 pm
by Greenmachine
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Lots of patina but very little rot
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Fairly straight tailgate.
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Not too molested engine bay.

I reaqlly wanted to get it running today as it was supposed to just need a carb rebuild (was told it leaked bad). I rebuilt the carb so thats one thing off my to do list...
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Turns out it wasn't getting fire so I swapped in the module from my parts Cherokee. Then it wasn't getting fuel with the pump having a direct hose into a gas can so I replaced the fuel pump. Had to call it a day after that but it's still not pulling fuel out of the tank so I will have to start chasing lines. It needs some timing attention too as it backfired pretty spectacularly shooting the oil fill/vent cap into the hood and then into my face. It also blew the dip stick out. HEI should be here in a day or two and I will address the timing then. Hopefully I can get her running tomorrow....

Re: 1980 J-10

Posted: Tue Dec 30, 2014 5:56 am
by Tatsadasayago
You should check the oil for gasoline saturation ASAP!

Having the cap and dipstick pop out after a misfire says your oil is full of gas and you've got a piston ring allowing burning combustion gasses into the crank case. Bad scoobies!

Re: 1980 J-10

Posted: Tue Dec 30, 2014 6:19 am
by Greenmachine
Probably a result of pouring gas down the carb trying to get it to hit. I would say it's a combination of fuel getting in the crankcase and the timing being off. Its not got enough in the oil that you can smell it on the dipstick.

Re: 1980 J-10

Posted: Tue Dec 30, 2014 10:50 am
by Tatsadasayago
Greenmachine wrote:Probably a result of pouring gas down the carb trying to get it to hit. I would say it's a combination of fuel getting in the crankcase and the timing being off. Its not got enough in the oil that you can smell it on the dipstick.
Gotcha!
Let us know how it goes.

Re: 1980 J-10

Posted: Tue Dec 30, 2014 2:37 pm
by Greenmachine
Well it is now purring like a kitten. I think it idles smoother than my 2006 LJ. Turns out the timing was fine. I thought at first it was the needle sticking as it would run for 20-30 seconds and die and would not start back. I figured it was burning through the float bowl and then fuel starving. It was also just squirting out of one port. Ended up taking it apart about three times and using the old accel pump to clear the venturi ports. Must of had something in it or i wasn't holding my mouth right... Works great now.

On a unrelated note I finished refinishing my slot mags and got my 33's mounted. 75 Cherokee S with 4" Hellcreek and 33's.
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Re: 1980 J-10

Posted: Tue Dec 30, 2014 7:09 pm
by Tatsadasayago
They say women judge each other by their shoes.
I think we Jeeper-Gearheads judge each other's rigs in the same manner.

Nice Shoes! :P

I love aluminum slots with knobby diggers on em!

Re: 1980 J-10

Posted: Sat Jan 03, 2015 6:49 am
by Greenmachine
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Rear brakes done..

Re: 1980 J-10

Posted: Wed Jan 07, 2015 5:25 pm
by Greenmachine
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HEI in and running. I need to replace all the rubber lines on the entire truck in the fuel system. They are toast and fuel pump looses prime if it sits a couple days, and fuel leaks at the tank... I went with the $60 HEI off Amazon. It is probably crap but it looks pretty nice. I am surprised it can be made for $60 much less sold. I would have degreased the engine but it was in the single digits today and about a 30mph wind...

Re: 1980 J-10

Posted: Fri Jan 09, 2015 11:17 am
by Greenmachine
Well the 258 runs good and smooth and doesn't make any noise but it has some serious blowby.... The more I run it the worse it seems to get. I changed the oil and filter after I got it to run (it had oil in it and I have seen worse). I am now trying to decide what to do.. I really don't want to drop a grand or more on rebuilding. There is a 06 model 4.0 on cragslist right now with bent rods 40k miles was hydrolocked. Head is suppoed to be good for $150... Was contemplating stroker.... I also have a running 360 in my parts chero with a nib cam, intake, timing set, and polished holley 600 on the shelf. I could ebay for the money or put it in the 360 and swap it in... Or I could run it till it dies and then do something...

Re: 1980 J-10

Posted: Sun Jan 11, 2015 8:04 pm
by Greenmachine
Put on some stock monroe shocks, my other set of slot mags and a set of kenda klever at's. Dropped the nasty tank to replace the hoses and sending unit and vent grommet.

Didn't remeber to take many pictures... Covered in nasty old gas and stinky fumes... Had to keep opening the door to let it air out and it was 19 degrees...
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Re: 1980 J-10

Posted: Sun Jan 11, 2015 8:49 pm
by ghcoe
[quote="Greenmachine"]Well the 258 runs good and smooth and doesn't make any noise but it has some serious blowby.... The more I run it the worse it seems to get. [quote]

I would just run it and keep the oil clean.