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  #581  
Old 04-11-2022, 07:40 PM
rallison203 rallison203 is offline
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Very nice. Never heard of such a thing. I assume thats also related to the HEI ignition module I saw. I'll have to check those out.

I'll stick with the stock carb however if I can help it.
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  #582  
Old 04-11-2022, 09:33 PM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by rallison203
Very nice. Never heard of such a thing. I assume thats also related to the HEI ignition module I saw. I'll have to check those out.

I'll stick with the stock carb however if I can help it.

Carbs are simple enough but mine had some issues I didn't like so I decided to go fuel injected.

The Fitech is a stand alone EFI unit. It was very easy to install and not terribly difficult to tune, although there is a pretty big learning curve even though they claim it's self learning. Holley sells a similar unit. I'm not sure I would recommend Fitech over Holley but the troubles I've had with it have been with Fitech branded fuel pumps and the fuel pressure regulator which was simple to change. Other than that haven't had an issue.

The HEI is also stand alone although it could be modified to be controlled by the Fitech, it can also control electric fans if I had one but I don't use it for that. I'm a big fan of HEI because they don't require the maintenance of the old points setup but it's a tight fit and I've read they can be kind of a crap shoot nowadays. I've been running that since shortly after I bought the truck.
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  #583  
Old 04-12-2022, 11:20 AM
rallison203 rallison203 is offline
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I can see the advantage of HEI over an engine with points, etc. But does HEI offer any significant advantage over the Jeep's own Duraspark ignition?
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  #584  
Old 04-12-2022, 03:05 PM
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Heep-J4000 Heep-J4000 is offline
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Yes I have to admit that I'm jealous on the final result of your fan shroud!

I keep your build in my mind for when my j4000 is back together and running and maybe gonna make a shroud from alloy myself.

I see you have some work to do on tidying up the wiring a bit too
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Jeep "because mother nature hates flat roads to"

http://www.ifsja.org/forums/vb/showthread.php?t=180974

99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is getting major overhaul at the moment!)
80' Jeep cj5 350 V8 Chevy/sm420/D300 project
70/71 Jeep J4000 parts truck with Buick 350

Former vehicles:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.
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  #585  
Old 04-12-2022, 03:11 PM
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Quote:
Originally Posted by rallison203
I can see the advantage of HEI over an engine with points, etc. But does HEI offer any significant advantage over the Jeep's own Duraspark ignition?

There is also a pertronix ignition system for the AMC engines.
No need for extra electronic boxes etc and can placed in a original points ignition tower.

I did use one on my 73' amc engine after having old school ignition points for years and did regret I hadn't bought the pertronix system years earlier!
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Jeep "because mother nature hates flat roads to"

http://www.ifsja.org/forums/vb/showthread.php?t=180974

99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is getting major overhaul at the moment!)
80' Jeep cj5 350 V8 Chevy/sm420/D300 project
70/71 Jeep J4000 parts truck with Buick 350

Former vehicles:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.
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  #586  
Old 04-12-2022, 04:34 PM
rallison203 rallison203 is offline
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I'm very slow warming up to such things. It took me several years to switch to synthetic motor oil.

I don't know. There's something about diaphragms and springs and points. I once brought a 3000GT VR4 back from the dead. After fumbling with fuel injection and turbos and digital tuning, I've learned to appreciate the old ways.

Your shroud is beautiful. I'm sure your engine runs better than mine does. Sorry to hijack your thread, briefly.
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  #587  
Old 04-13-2022, 05:12 AM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by rallison203
I can see the advantage of HEI over an engine with points, etc. But does HEI offer any significant advantage over the Jeep's own Duraspark ignition?


In '72 they were still using Delco Points ignitions. I became a convert to HEI back when I had my first Gladiator. It had a 283 Chevy and was so low geared that at highway speed it sounded like the engine was redlining. Top speed was 68mph with my foot on the floor literally going down a mountain with a stiff tailwind. It either needed the points cleaned and filed or replaced every week which was a real pain. I dropped in a junkyard HEI and never had another problem.



I have read where people have had a lot of problems with HEIs produced these days but I haven't.


I've also read lots of posts about the Duraspark failures but I know little to nothing about then so don't really have an opinion.
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  #588  
Old 04-13-2022, 05:15 AM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by Heep-J4000
Yes I have to admit that I'm jealous on the final result of your fan shroud!

I keep your build in my mind for when my j4000 is back together and running and maybe gonna make a shroud from alloy myself.

I see you have some work to do on tidying up the wiring a bit too


So far it's proving to be a very good solution but we will have to see how it does in traffic this August
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  #589  
Old 04-13-2022, 05:18 AM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by Heep-J4000
There is also a pertronix ignition system for the AMC engines.
No need for extra electronic boxes etc and can placed in a original points ignition tower.

I did use one on my 73' amc engine after having old school ignition points for years and did regret I hadn't bought the pertronix system years earlier!


I debated between the Pertronix and HEI before I bought the HEI. I still have all the original ignition stuff and if anything ever goes wrong with the HEI I may give that a try.
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  #590  
Old 04-13-2022, 05:23 AM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by rallison203
I'm very slow warming up to such things. It took me several years to switch to synthetic motor oil.

I don't know. There's something about diaphragms and springs and points. I once brought a 3000GT VR4 back from the dead. After fumbling with fuel injection and turbos and digital tuning, I've learned to appreciate the old ways.

Your shroud is beautiful. I'm sure your engine runs better than mine does. Sorry to hijack your thread, briefly.


A lot of people are slow to warm up to technology. Afterall Carbs and points worked just fine for decades and if I hadn't had so much trouble from my carb I might still be using it.


I don't think you have hijacked anything. I like having discussions...especially about my truck
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  #591  
Old 04-20-2022, 11:00 AM
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https://youtu.be/fnz58OxLY08

Very nice!
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Jeep "because mother nature hates flat roads to"

http://www.ifsja.org/forums/vb/showthread.php?t=180974

99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is getting major overhaul at the moment!)
80' Jeep cj5 350 V8 Chevy/sm420/D300 project
70/71 Jeep J4000 parts truck with Buick 350

Former vehicles:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.
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  #592  
Old 04-20-2022, 11:56 AM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by Heep-J4000




Funny you should post that, I have been working on a new video focusing mainly on the fuel injection.
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  #593  
Old 04-20-2022, 02:37 PM
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Quote:
Originally Posted by Crankyolman
Funny you should post that, I have been working on a new video focusing mainly on the fuel injection.

Was looking at jeep j4000 on YouTube and when I saw the engine colour I knew it was your Jeep
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Jeep "because mother nature hates flat roads to"

http://www.ifsja.org/forums/vb/showthread.php?t=180974

99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is getting major overhaul at the moment!)
80' Jeep cj5 350 V8 Chevy/sm420/D300 project
70/71 Jeep J4000 parts truck with Buick 350

Former vehicles:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.
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  #594  
Old 04-22-2022, 06:53 PM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by Heep-J4000
Was looking at jeep j4000 on YouTube and when I saw the engine colour I knew it was your Jeep


I think I posted that shortly after I got the engine back in. I wish I had been videoing and documenting everything I've done to the truck over the years.

I have just posted a new video about the Fitech EFI. I think it is terribly boring but it sounds nice in the parts where the engine is running.

https://www.youtube.com/watch?v=GRMCJhiBLfM&t=1s
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  #595  
Old 05-02-2022, 09:34 AM
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The other day I was driving home from work and my window would only roll halfway down. When I got home I noticed that a large section of the window track was now pointing at a 45 degree angle from where it should be


The track had always been a bit rusty looking and the window glued into it with what looks like clear RTV but it was never a real issue until now.


So, now I need to go to the junk yard and get a replacement track. Hopefully that '73 wagoneer in Auburn has a good one.


Then the next day I noticed the truck is suddenly taking much longer to start than usual and the fitech controller goes back to the home screen instead of remaining on "large gauges" while I start it. I think this is caused by the long cranking time.



Yesterday after work it was literally hard to start and driving home I noticed it seemed to be getting an occasional lean spike for no apparent reason, sometimes an AFR as high as 17.


So now have 2 things to figure out. One of the big problems is I never reflashed the controller because I didn't want to lose my tune but until I do I can't record what's happening so I guess I will have to do that. Somewhere I have pictures of my tune so it shouldn't be hard to re-install it and I think that's probably the place to start.


With the truck in park I can't make it do anything unusual. Last time it acted up with lean spikes it was the fuel pump but in park I can accelerate and the fuel pressure is stable at 50 PSI
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  #596  
Old 05-02-2022, 01:10 PM
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How old is the battery?
Low voltage can do weird things with the electronics
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Jeep "because mother nature hates flat roads to"

http://www.ifsja.org/forums/vb/showthread.php?t=180974

99' Dodge ram 2500 4x4 crew cab 5.9 Cummins ,backup work truck for now
73' Jeep J4000 (named Heep or Desert Dragon) amc 360 V8 converted to LPG with T15/D20 (was my daily work truck for thirteen years and is getting major overhaul at the moment!)
80' Jeep cj5 350 V8 Chevy/sm420/D300 project
70/71 Jeep J4000 parts truck with Buick 350

Former vehicles:
85' Volkswagen caddy mk1 1.6 diesel.
83 Toyota land cruiser BJ42 3.4 diesel.
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  #597  
Old 05-02-2022, 09:42 PM
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Crankyolman Crankyolman is offline
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Quote:
Originally Posted by Heep-J4000
How old is the battery?
Low voltage can do weird things with the electronics


Battery was replaced in October of '19, so it's only 2.5 years old. It also has a 150 amp alternator. Voltage is one of the things I like to monitor while driving and it usually doesn't draw down excessively while starting but maybe it would on a long crank if it didn't start fast enough.


I'm thinking maybe a vacuum or exhaust leak might be causing the problems, not really sure but it's not behaving like normal, that's for sure.
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  #598  
Old 05-03-2022, 12:41 PM
rallison203 rallison203 is offline
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Quote:
Originally Posted by Crankyolman
So, now I need to go to the junk yard and get a replacement track. Hopefully that '73 wagoneer in Auburn has a good one.
This guy had doors when I was there a couple months ago. I want to say they were from a 79 Cherokee Chief but I'm not sure.

https://skagit.craigslist.org/pts/d/...474313049.html
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  #599  
Old 05-05-2022, 04:42 PM
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Over my weekend the truck decided to begin starting normally again, which is good. When I drove it to work AFR was fine if I was accelerating or decelerating but if I was trying to drive a steady speed it was all over the place. I found the fault codes in the controller and found this.



This is usually associated with wiring or programming rather than the O2 sensor actually being bad. So I decided to give everything a once over and when I crawled under the truck I saw this.



The connector was beginning to melt but I don't think there is any damage on the side that goes to the injector.


So I quickly zip tied it to the emergency brake cable shroud and the problem was solved



That was easy.


Then today I was chatting with my wife on google. She was looking at ebay for a window track and asked if BJ's sells them. I did a quick look and told her "yes they do" and gave her a link but before I could elaborate had to go work on something. The next time I talked to her she said she had ordered it and it would be here tomorrow or the next day. They aren't cheap, but they are stainless steel and hopefully will do the job and last for as long as the truck does.


So on my next weekend I'll change that out and should have a fully functional window again
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  #600  
Old 05-06-2022, 06:36 PM
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I got the window track from BJ's today. It looks like a very nice well made part. Monday or Tuesday I should be able to get it installed, weather permitting
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