Painless CJ harness getting an update...requests? - Page 3 -

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post #31 of 37 Old 09-21-2013, 06:53 AM
John Strenk
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1976 CJ5 
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Originally Posted by bobert0670 View Post
Thanks Eric, when its ready let me know, since I have time I will wait for the new kit, and option kits to be available. As for the manifold heater, I could be wrong but the manifold "heater" is just a damper that blocks the exhaust port and forces the exhaust back into the intake. When the "spring" temperature gets hot enough it allows the damper to open (with counterweight). At least that's how my '80 CJ7 is.

If you need a beta tester I'm available.
Originally Posted by bobert0670 View Post

Double checked my FSM. The 6 and 8 cyl engines both use bimetallic springs to control the manifold valve to heat incoming air. No electrical heaters.

Depends on the year.

Any CJ with an Aluminum intake manifold uses an electric Manifold heater.
It operates until the water temp reaches 160*
I know '84 and later had them but up to '80 did not. Possibly 81 did not either.

82 to 83 I'm not sure. Seems like they were already were running a computer to control the carter in California and may have had the heater because they used a idle speed control box to control the idle speed when heater was running.

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post #32 of 37 Old 09-23-2013, 07:07 AM Thread Starter
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We discussed the need for a Jeep duraspark on Friday and I believe I'll be bringing a CJ in as soon as I get this instruction manual done to get the correct lengths.

thanks for the picture of the heater, I've wondered what the element looked like. I guess I need to locate a manifold on ebay and get one here and test the relay and fuse holder I hope to use for the relay harness. I think if I can use what I'm planning it will keep the costs down.
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post #33 of 37 Old 10-03-2013, 10:14 PM
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I've read online (google search) of people claiming that the painless wiring instructions are inaccurate concerning tne oil gauge. They claim instructions reverse the connections.
Are you aware of this?
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post #34 of 37 Old 10-04-2013, 08:26 PM
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My 83 has the manifold heater

Jeep Naked
Put some color in your Cheeks
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post #35 of 37 Old 10-07-2013, 07:22 AM Thread Starter
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yes I am aware of the oil pressure issue, I believe who ever wrote the original manual based the instructions on whatever we had in the shop at the time. I believe most aftermarket gauges are reversed from the factory. I know that the pictures I have here of an install we did a year ago shows them reversed compared to the factory. The install we did had a crown oil pressure gauge.

I also have a heater manifold coming to me this week so I can test amperage load to finally get a relay kit designed.
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post #36 of 37 Old 10-10-2013, 09:15 PM
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This might have been suggested, but I will throw in my 2 cents.

Why not also add some auxiliary fused power circuits so things like power ports for phone chargers and GPS can be used? I would suggest maybe 3-5 extra power circuits for the interior of a CJ. Have the wiring be long enough to reach the back of the Jeep in case somebody wants to run a fridge or something similar.
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post #37 of 37 Old 10-11-2013, 02:17 PM Thread Starter
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there are a couple accessory wires provided and the new manual outlines how optional factory components we provide circuits for can be used for accessories as well.

To give an update, I'm in the home stretch now and re-doing some lengths and redesigning the tail harness. Does anyone have pictures of where the tail harness passes through on a CJ8? I know it's not in the back like the 5 and 7's but can't seem to locate a local CJ8 to take any photos of my own.
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