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78 CJ7 258 Engine Questions! (Lots of PICS!)

78 CJ7 258 Engine Questions! (Lots of PICS!)

RenegadeCJ7

Jeeper
Posts
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Location
Greenville, SC
Vehicle(s)
1978 CJ7 Renegade
1999 XJ Classic
Ok, this is a good one! Most of the items in your pictures are smog or emission related. Look under the "docs" part of this web site at the top. There you will find links to CJ7 I believe. You will be able to download a parts manual that contains many exploded diagrams. Most of your queztions can be answered there.

An air pump located under the power steering pump helps recirculate exhaust back into the engine along witg the EGR valve. The plumping for this is what you see crimped, broken, and plugged. There are also some parts missing. The bracket on the intake mainfold hold the main hose coming off ghe air pump to ghe rusted out tubing. A diagram is worth a thousand words here. Your next question on what to do depends on if you need to keep all of the emission s stuff by law.

The hose coming off tbe diff is a vent and should be elevated above any watdr level hou may drivd through. I would raise it.

Hard to type from my smartphone, sorry. Rod
 
Hose coming out of fire wall is a drain for the crowl vent. Rod
 
Your air cleaner needs some serious repair work. The round thing is a type of valve to let either cold air or warm air from a hose going out of the bottom to a shield on the exhaust manifold forward and below the carb.

Read other threads on carb fixes, as yours is prone to problems in getting everything to work right. Rod
 
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