JT4x4

The Mud Pit => General => Topic started by: JSchwinn on August 24, 2015, 03:19:57 PM

Title: '78 Jeep J10
Post by: JSchwinn on August 24, 2015, 03:19:57 PM
This Wednesday I'm going to pick up a '78 J10 to use as a winter beater.  She needs some love but over the next month I plan on getting her daily driver capable.
Title: Re: '78 Jeep J10
Post by: Big Chuck on August 24, 2015, 03:33:51 PM
Man that's a pretty truck!!!
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 24, 2015, 03:38:01 PM
yea, AMC 360 with allegedly 86k original miles.  Been sitting for about 7 years only driven couple times a year and is starting to rot away so I feel obligated to save her.  Most of the rust in on the bed so I figure worst case I'll do a wood flatbed.  Engine runs strong and because it's going to be a winter vehicle body rust doesn't bother me.
Title: Re: '78 Jeep J10
Post by: Big Chuck on August 24, 2015, 03:42:05 PM
Where is it? Is that picture recent?
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 24, 2015, 04:17:46 PM
Stratford CT, pictures are recent but there is a lot of surface rust underneath due to it being parked on grass for the last 7 years.  Fenders are starting to bubble but the cab is is pretty good shape.  Debating buying a welder and trying my hand in some metal work.  Not looking for this thing to be perfect just needs to get me through my 15 mile round trip to work
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 25, 2015, 03:56:13 PM
nothing is ever easy.... there is no options to rent Uhaul trailers for the next week or 2... apparently the truck requires a 7k trailer and there are none available in the state of CT.  I have a buddy with a flatbed but the guy selling the jeep isn't around after this week so it sounds like i'll have to drive there buy it and come back for a 3rd time. Only other option is to try and fix the small leaks and the brake squealing noise and drive it home.
Title: Re: '78 Jeep J10
Post by: Big Chuck on August 25, 2015, 04:13:19 PM
Call superior rental in Norwich, they rent a tilt trailer that Andrew and Matt rented to go to Mohawk with. Seemed like it was very inexpensive and should work good for that truck. I guess it just depends on what you are towing it with.
Chuck
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 25, 2015, 05:22:57 PM
just gave them a call and have a trailer rented!  thanks chuck.
Title: Re: '78 Jeep J10
Post by: Big Chuck on August 25, 2015, 05:37:30 PM
Glad it worked out, they have the tie downs also, and make sure you have the correct hitch mount, I believe its a pintle.
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 25, 2015, 07:05:43 PM
shoot don't have one of those, guess I will after tomorrow
Title: Re: '78 Jeep J10
Post by: Mr Rock on August 26, 2015, 12:13:40 AM
shoot don't have one of those, guess I will after tomorrow

I have one somewhere...
Title: Re: '78 Jeep J10
Post by: Big Chuck on August 26, 2015, 01:50:39 AM
I think they will supply you with one if needed.
Title: Re: '78 Jeep J10
Post by: JSchwinn on August 27, 2015, 01:41:36 PM
Well picked up the newest addition to the Jeep family, barely fit on the trailer! If I get a few things sorted out I'll take her to the next club meeting.
Title: Re: '78 Jeep J10
Post by: 98xj on August 28, 2015, 05:52:27 PM
That's awesome.
Title: Re: '78 Jeep J10
Post by: JSchwinn on September 11, 2015, 03:50:21 PM
I'm thinking I need my carb rebuilt on the truck, anyone ever rebuild a carb that can help me out or know a place I could go to get it done?  Thanks
Title: Re: '78 Jeep J10
Post by: Big Chuck on September 11, 2015, 04:01:07 PM
What carb is on it? If it is the motorcraft 2100/2150 it is Wicked easy. The rebuild kits are readily available and instructions can be found online, YouTube or print them out and follow along. That is the V8 correct?
Chuck
Title: Re: '78 Jeep J10
Post by: JSchwinn on September 11, 2015, 04:11:37 PM
Yes it s the AMC 360 and I believe that's what it has for a carb but ill have to check. L'll look into the kit I was looking to take the lazy way out and pay someone to do it because ive never messed with a carb before.... guess now is as good a time as ever.
Title: Re: '78 Jeep J10
Post by: JSchwinn on September 11, 2015, 04:33:40 PM
Also, I need to get 2 straight 2.5" exhaust pipes bent about 5 degrees, anyone know a place I can get it done cheap? 
Title: Re: '78 Jeep J10
Post by: Big Chuck on September 11, 2015, 05:05:28 PM
Did I hear that Tim and Tom have a Pipe bender?
Title: Re: '78 Jeep J10
Post by: JSchwinn on October 06, 2015, 11:41:35 AM
Help...... this past weekend I replaced the intake/carb with an edelbrock.  The engine fired right up and there seemed to be no issues even when it got up to temp.  When I went to take it for a ride about 5 minutes in the oil pressure drops down slowly to 0.  There doesn't seem to be any noticeable changes in noise.  I replaced the sending unit along with a full oil change with rotella 15w40.  It almost seems like the oil isn't getting back into the pan.   When I got home I turned the engine off waited 15 minutes and turned it back on and had 40psi.  I really have no clue where to go from here and could you any advice you can give.

The Engine is an AMC 360 stock other than the edelbrock upgrades.  Also eliminated all the emissions crap so I only have vacuum to brake booster/PCV/Dizzy
Title: Re: '78 Jeep J10
Post by: Big Chuck on October 06, 2015, 03:08:12 PM
Sounds like the 258 straight 6 issue...
Title: Re: '78 Jeep J10
Post by: JSchwinn on October 06, 2015, 03:38:58 PM
sounds like a need a new hobby..... lol
Title: Re: '78 Jeep J10
Post by: JSchwinn on October 06, 2015, 10:37:41 PM
Alright so got home today and ran the truck at idle for 40 mins with constant oil pressure. I the got in and revved very lightly and watched the pressure drop and then slowly climb back up. I then did a little higher idle and the pressure slowly dropped to 0. I shut the engine off and pulled the dipstick and the oil level showed almost empty. So the oil isn't getting back to the pan quick enough when at higher than idle rpms. What can cause this...

Nite: I have 5-6 quarts of oil in the truck and half a canister or sea foam
Title: Re: '78 Jeep J10
Post by: Mr Rock on October 07, 2015, 01:30:18 AM
most likely the motor is full of sludge, take off a valve cover to verify, if the oil galleys are plugged you really need to get it clean before running it much more, there could be critical areas not getting oil! I would drop the oil pan and clean it out as well, you will be able to see how much is on the crank and connecting rods, get it cleaned as best you can as any sludge in there could plug the pick up screen. after that change your oil often a few times.
Title: Re: '78 Jeep J10
Post by: Big Chuck on October 07, 2015, 03:26:35 AM
When it's running before the oil pressure goes away, does it smell like it running rich? Did you ever check the timing and possibly over compinstate with carb tuning?
Title: Re: '78 Jeep J10
Post by: JSchwinn on October 07, 2015, 11:43:47 AM
Valve covers were spotless but I'll pull them again just to verify.  When I did the intake I cleared all the sludge.  I'll pull the pan and see how that looks. I also ran sea foam through the engine at idel for 45 mins yesterday then drained the oil, it was dirty but nothing major came out.   

I haven't checked the timing and to be honest this is the 1st time I've messed with a carb so I could be tuning it wrong.  I just messed with the 2 screws till it sounded right.....
Title: Re: '78 Jeep J10
Post by: Big Chuck on October 07, 2015, 01:33:01 PM
Check your oil dipstick and see if the oil smells like gas. Could be getting washed out because the carb is running to rich.
Title: Re: '78 Jeep J10
Post by: JSchwinn on October 07, 2015, 03:49:55 PM
well at idle there is no issue, and above idle the set screws don't affect the flow so I don't think that is the issue.  the oil definitely didn't smell like gas when I drained it yesterday.  I was dirty after 45 min in the engine but nothing abnormal, there was no evidence of metal