Nobody is picking on you and I am not making fun of you. I appologize if I was condescending and sorry about the part of irritation; I did not read the conversation correctly. Please understand your fragmented sentences make it impossible to make out what you are trying to say.
Blew a radiator hose bottom one kept driveing it till made it home have a hurt foot chip fracture to far to walk to get new hose anyway now I have a problem with the no. 1 cylinder either a bent valve or cracked piston anyone else have this problem and what was damaged kinda misses right off idle then kicks in number one spark plug dirty black and white all others spark plugs fine oil looks good just had changed it doesnt over heat now so I think head and gasket ok thanks for any feedback on this
Its not hard, just separate your subjects so I can make heads and tails of the problem.
"Either could affect compression"
Now I have no idea whether you are refering to the fact that a bent valve or cracked piston would EFFECT compression; or that you are stating that unplugging and plugging in your fuel injector is effecting your compression. One is correct and the other is not so I am sorry if I couldn't understand which of these you were refering to.
"Does the 88 Jeep 4.0 Renix Engine Have A History Of Any Common Problems Such As Bent Or Stuck Or Sticking Valves Cracked Pistons After A Over Heating Problem Please Keep In Mind That This Engine Has Over 280,000 Miles On It"
Sticking and bent valves are two totally different things. Sticking valves is very common and happens to all aged engines. No the AMC 242 is very well designed and has served Jeep from the mid 80's through the early 21st century. As stated below bent valves or cracked pistons are indicative of detonation or extreme wear. Running a car with no coolant will no doubt give the engine the possibility of potentially warping, cracking and destroying internal components. (I am not sure if the 3.8L is just the 4.0L with a slightly shortened stroke)
Bent valves and cracked pistons are not a part of normal wear and tear on an engine. That would indicate detonation or an extreme misalignment in your timing chain.
280,000 miles on an engine would be indicative of extreme wear. Have you ever overhauled the engine?
So is there a bent valve/cracked piston?
Wednesday, June 18th, 2008 AT 10:59 PM