I would like to start by saying thank you to TeamRush. Your advise on my engine miss while in park was right on and the TFI upgrade to boot. My engine runs smooth as silk. If you are ever in Joplin, MO I will gladly buy the beer.
My current problem is a cracked timing chain cover. It is not yet leaking any oil. Will I hurt anything if I continue to drive it until I can get a new one put on? How could I have cracked it? It is cracked in the middle about 60% down from the top. None of the bolt holes are cracked. Has anyone else had any problem with these? Are they a weak link? If so, where can I get a stronger one. The only place I have been able to find one is 4WD hardware and one at the local bone yard.
My Jeep is a 1983 CJ-7 with a 258 straight 6. TF 999 auto tranny. If I need more detail let me know.
Double check that "crack", it probably is the casting flash or marks that are very common on these covers. If it is, new ones are still available from Jeep, if you can't find one. Hope this helps, good luck!
I am familiar with the casting of these timing covers. I should have added that I rebuilt the engine around 10,000 miles ago and inspected everything at that time. Unfortunately for me it is cracked. I am interested in welding it if it can be done on the Jeep. Is that possible? I do not yet have a welder and would have to take it somewhere to have it welded. I can pull the Jeep apart and put a new on though. I can see and feel the crack. I have found one at a bone yard for $35.00. 4WD hardware has them for $39.99. Jeep wants $79.00 plus $18.00 for a spacer. No where else do I see that I need a spacer. Can anyone tell me what applications needed a spacer? The parts guy at Jeep of course could not. I have been wheeling very hard lately and feel it will be leaking very soon if I do not get it fixed before I go out again this week end.
The "spacer" is actually a dampner to control timing chain slap, it's used on the later model 4.2s and is a "good thing". If the cover isn't cracked badly, just use some epoxy to seal it up, there's not much stress on the cover.