CJ-5 w/ 4.2 - JeepForum.com
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post #1 of 3 Old 04-03-2012, 12:20 AM Thread Starter
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1996 ZJ 
Join Date: Nov 2009
Location: Shelton
Posts: 73
CJ-5 w/ 4.2

My new jeep - 1975 CJ-5 w/ 4.2 liter and 5 speed.

I have removed the heater box due to all metal components being rusted, and removed the hoses off the engine then removed the nipples and brass plugged them - no more heater.

There is NO ecu....so I have removed all sensors, plugs, vacuum ports and have brass plugged them all. I will be running normal gauges for oil, temp and water.

The EGR was all rusty and seized up....so I removed it and also took the tube that goes from the ex. Manifold to the EGR valve and crimped it and braised it closed. What is the easiest way to CAP the EGR ports off?*

Can you please provide any info, lessons learned on the topics above.....I want to ensure I am not causing issues.


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post #2 of 3 Old 04-03-2012, 12:57 AM
Joe Dillard
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1991 YJ Wrangler 
Join Date: May 2004
Location: Lexington Park
Posts: 13,533
Hi Doug, I'm gunna go ahead & move your thread into the CJ section where I think you'll get better feedback.

BTW: I've got a friend here in San Diego with an LS1 powered CJ5.
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post #3 of 3 Old 04-03-2012, 02:35 AM
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1977 CJ5 
Join Date: Apr 2009
Location: Arlington TX
Posts: 884
Sounds like you have an intake/exhaust manifold from something in the 81+ years as the ones prior the intake and exhaust are bolted together directly and there is no tube for the egr. I just cut a 1/4" plate of aluminum down to size and bolted in place of the egr valve. You can just leave the valve in place just disconnected from the vacuum lines and it will do the same as long as you have capped both ends of the tube.
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4.2 , cj-5

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