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Old August 14th, 2013, 06:16 AM   #1
Logdog
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Default Just how many head bolts to you ACTUALLY need?

Long back story short- I have a 88 Wrangler with a 4 year old reman 258 motor. The motor was dropped in around winter 2009. Due to a out-of-state move and motivation issue it sat for awhile. I recently have got it running and driving.

While doing some of the final underhood clean up I notice a head bolt missing. Funny. I dont remember removing it. I dont know why I would have. I look through all my stuff and cant find it. I see no reason one of my buddies that helped me drop it in would have taken the bolt out. Wierd stuff. It has obviously came out since I painted it. I poke a screwdriver in the hole and it goes way down so I source a new bolt.

I go to install the new bolt and it wont thread in. Weird. So I grab the boroscope that has saved my keister a few times when I was a tech and take a peek. Its broken in the block. Great.

My current theory is whatever low buck remanfacturer OReillys uses broke it and installed some gunk to hold it in place. But that doest explain where the 3+ inches of bolt went that should still be in the hole. I dont see how it would have bounced out on one of my test drives in the pasture.

So I have 13 out of 14 headbolts on a cast iron head and block I6. I am going to run it and see what happens.

Just how many head bolts do you actually need anyway. I like to think I have added lightness
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Old August 14th, 2013, 06:17 AM   #2
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Picture of the offending missing bolt. Its an 84 motor.

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Old August 14th, 2013, 10:46 AM   #3
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Awesome gamble, I'm thinking it won't be an issue until you over heat it.


But I'm just a jackass that owns a bunch of tools.
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Old August 14th, 2013, 10:49 AM   #4
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Well, if it wasn't necessary....it wouldn't be there in the first place.
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Old August 14th, 2013, 10:59 AM   #5
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How many lugnuts do you need?
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Old August 14th, 2013, 11:05 AM   #6
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Quote:
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How many lugnuts do you need?
Three. As long as they are in a triangle.
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Old August 14th, 2013, 11:26 AM   #7
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does that hole go into a water jacket?
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Old August 14th, 2013, 07:49 PM   #8
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Quote:
Originally Posted by kickstand View Post
How many lugnuts do you need?
2 for driveway use
3 to get you home
4 will get it done
5 is preffered

Edit: for thoes who put there undies on with a winch, I can court the number of times I have left my driveway with 4 lug nuts on one hand. I have Never left the house w/ less.
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Old August 14th, 2013, 08:24 PM   #9
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2 for driveway use
3 to get you home
4 will get it done
5 is preffered

Edit: for thoes who put there undies on with a winch, I can court the number of times I have left my driveway with 4 lug nuts on one hand. I have Never left the house w/ less.
If you have a six lug hub you're really fucked.
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Old August 14th, 2013, 08:32 PM   #10
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Quote:
Originally Posted by Logdog View Post
Just how many head bolts do you actually need anyway. I like to think I have added lightness
Remove one a month and let us know when it blows up, then we'll all know.

If it not one of the end one, one that goes into the water jacket (I think there is one) and not 2 adjacent, I bet you could go a while missing a few.
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Old August 14th, 2013, 08:38 PM   #11
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hmm how ghetto are you?
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Old August 14th, 2013, 09:10 PM   #12
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Originally Posted by brewmenn View Post
Remove one a month and let us know when it blows up, then we'll all know.

If it not one of the end one, one that goes into the water jacket (I think there is one) and not 2 adjacent, I bet you could go a while missing a few.
I think that is the "Tootsie Pop" method.
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Old August 14th, 2013, 09:11 PM   #13
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hmm how ghetto are you?
37%. Why?
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Old August 14th, 2013, 09:12 PM   #14
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Quote:
Originally Posted by joe_jeep View Post
does that hole go into a water jacket?
It does not. It ran for a few hours before I noticed it was missing. If it was a coolant passage I bet I would have noticed real quick!
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Old August 14th, 2013, 10:55 PM   #15
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JB Weld the head back on it and run it.
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Old August 15th, 2013, 09:58 AM   #16
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Weld the head back on it and run it.
Fixed
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Old August 15th, 2013, 05:04 PM   #17
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Quote:
Originally Posted by GreaseMonkey View Post
If you have a six lug hub you're really fucked.
Nope... still rolling on baby 5 lug axles.

My 8.8 has been great, it seems my clapped out 4.0 & 35s are not enough to cause an exciting part scattering explosion.


My HP d30 is the opposite. It blows up a lot when locked. I'm on my last r&p set so I left it open.
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