So I'm still in the process of my 4.0 swap. It's going along well but I think its going to set a record for the longest swap in history. With work and school I just don't have much time.
Anyways today I'm going to bolt in the starter, when I crawl under there I find this hole above the starter. It is perfectly milled so I know its factory plus there is a picture of it in the FSM. Unfortunately there is nothing to tell me what it is.
So what is this hole for? Should there be anything in it? Is it for a freeze plug that is missing?
I can stick my entire pinky finger in it so I'm sure oil will spill out of it?
Dude--don't panic yet. I just checked mine, there is no freeze plug in mine, just an open gaping hole. I know for certain that I have an original motor, I bought mine in such a state of total neglect that nothing had EVER been done to/for mine and it had to have come this way factory.
So you're saying you drive your Jeep around daily with this open hole and nothing leaks out of it? The last post said possibly a spot to grip in the factory. If nothing leaks out of it that's good enough for me. If a freeze plug goes there as another post lists then I would assume coolant would leak out?
It might be a casting hole so the could put hooks to move the block around. I could picture two chains with hooks holding the engine in a casting plant assy line. That would be the quickest way of moving the block
its too late for me to go and check, but mine could be a rubber plug, i cant tell just by looking at it due to all the grime thats there, but regardless, rubber or freeze, mine is plugged up
That hole is nothing. It is simply a way to hold the block. Look further toward the front of the block behind the timing cover and next to the fuel pump boss and there should be another hole of the same size coming out of the side of the block. I used these points to hoist my block. There was never anything in mine.
"So ghost has a plug in this hole and opihi has a gaping hole"
That just doesn't sound right:rofl:
My '91 block does not have a plug either. You should be fine. I am curious about the TSB that letitloose mentioned. I don't ever recall reading that one. Can anyone confirm it?
I just took my starter off and I had a rubber plug in it I tried to get it out and it broke. So the end of it was round stayed up in the hole I tried to get it out and it went in farther. Try getting with a piece of wire and can’t find it. So putting in a crankshaft sensor I dropped a bolt so had to take off the inspection plate from the Bell housing and found my bolt but no piece of the plug. I looked and looked for it no good so I am going to put a plug in it and move on.
They do sell different size expandable freeze plugs if you just want to close it off.
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