Question for the board..

[shortmorgan]

Freeze plugs??? Can someone help me with the location of freeze plugs on the z24 motor.. Thanks

[shortmorgan]

guess no one knows huh?

[bracktheron720]

i dont know exactly where they are on the 2.4 but i can tell you to look down both sides of the block there will probably be a few and the front maybe and im guessin one in between the motor and transmission... not sure but i hope tat helps..i know there in that area just not how many..

[AZhitman]

I'm a little confused here. No offense to the OP, but if you can't find the freeze plugs on a small motor, you probably should close the hood and go inside.

Here's a pic of one side:

[PEZi]

wow... sorry i missed this one lol.... yeah the freeze plugs are kinda.... ya know... just there

lol@greg

[shortmorgan]

You know that's hilarious, cause I was outside the other week and I was looking for them.. LOL Was out there for about 30 mins just staring, mine still has all the useless crap on it, and got so aggravated I shut the hood and walked back inside.. Thing is I don't really know what to look for.. Don't know what they look like.. Had never even heard of them till someone said, you're head gasket probably ain't blown.. Prolly just a freeze plug.. LOL.. My buddy gave me a fit.. Hilarious that you said that.. I know you were probably trying to be smart it was funny.. Thanks.. Sorry but where on the side are you refering.. I'm new at the whole motor thing, so please bare with me..

[bracktheron720]

its cool we all got to start somewhere dude!!if you look at the pic above the freeze plugs are the three brass circles above the oil filter..ones kinda over to the side but thats them!!theres gunna be more on the other side of the motor too..there dished in like a bowl you can feal around under the exhaust manifold and find them..

[AZhitman]

If you can get a flashlight up in there, see if they have some greenish-white booger-looking stuff below any of them.

Your buddy MAY be right, but a head gasket is a lot more likely to go than a freeze plug - And a freeze plug won't affect the way the engine runs.

Let's start over - What's wrong with the engine?

[PEZi]

if your problem is simply heat related... it MAY be a freeze plug... if you have compression loss of any sort... i have bad news for you

[shortmorgan]

Thanks for understanding guys... Ok pull up a chair...

I had a 4x4 hardbody, 7 inches of lift blah blah blah... Traded it to a friend even for this 720 (cuz I used to have some(3) in high school) that seemed to run OK.. Well i had it for a week and it was backfiring so bad I had to relearn how to drive it all over again to keep it from loading up.. Well the problem seemed to be the carb.. Made an appointment for the carb to get rebuilt, and that sat was taking off the trash.. I got less than 2 miles from home and noticed the temp hand rising.. I got out at the stop sign ( I live in the sticks) and checked it out.. poped the hood and noticed I had no water in the rad.. Put some straight cold (like had been freezing weather) water in it and water starts shooting out the back of the head.. Sort of at the bell housing area.. Thought immediately the head gasket.. But it did'nt change the way it ran (which was crapy anyway).. So I drove back to the house and it hasn't moved since.. No carb rebuild cuz the guy wanted me to bring him the truck, and now it won't crank.. LOL Dang that sux.. So a shop was syuppose to be picking it up but I 'might just do it myself.. Which will be a learning experience.. On the bright side.. When my friend TOTALED, yes TOTALED the hardbody he wasn't hurt.. If he woulda been in the 720 he would have been.. So........ I THINK ???? that about sums it up.. Hope this helps with ya'lls prognosis..Thanx in advance..

PS I already have a project 240 and was truly just wanting a dependable little truck, and since I'm the biggest nissan fan then 720 was the way to go..

[PEZi]

so the water was shooting out from where the head meets the block? yeah... i'd say headgasket alright... possibly warped too

[shortmorgan]

Not necessarily.. I couldn't see where it was coming from exactly.. I'm thinking ( and hoping) it's shooting out a freeze plug located @ the back of motor.

[PEZi]

well... as you can see from the pic posted.... there's not really a freeze plug at the back... basically only on the sides... so unless it was shooting out sideways i'd say headgasket

[AZhitman]

Water doesn't shoot out of freeze plugs. It may seep out, but not shoot out.

You're gonna need a rebuild, brotha.

[moredunes720]

yep, cold water plus hot metal = d i s a s t e r. Watched an old lady pour water from a hose at a gas station onto her engine block on a hot day when her car was overheating. lol she said she was in a hurry and got nowhere even faster! The block or something cracked because next thing we knew, there was antifreeze and oil everywhere. That prolly warped your head since that.s where the cold water hit the hot metal first. I could be wrong, though, i am not an expert.

[shortmorgan]

That sucks....

[bracktheron720]

Water doesn't shoot out of freeze plugs. It may seep out, but not shoot out.

You're gonna need a rebuild, brotha.

i dont like starting arguments but........yes water can SHOOT out of a freeze plug...like my post above said i had a 91 fire bird that sumbody ran strait water in it for years without changing or adding antifreeze...and the freeze plugs rusted out they had pin holes in them and when the motoer got hot and built up a little water pressure it looked like it was pissin out of four spots down the side of the block...i used rubber expansion plugs because there easier to replace with the motor in..yes i did a firebirds freeze plugs with the motor in the car a bunch of people said i was crazy but i got it done!!as soon as i did it started leakin between the motor and and bell housing...so on a chevy 3.2 v6 or whatever it was there is one freeze plug on the back side of the motor not sure about the napsz though....

[shortmorgan]

i dont like starting arguments but........yes water can SHOOT out of a freeze plug...like my post above said i had a 91 fire bird that sumbody ran strait water in it for years without changing or adding antifreeze...and the freeze plugs rusted out they had pin holes in them and when the motoer got hot and built up a little water pressure it looked like it was pissin out of four spots down the side of the block...i used rubber expansion plugs because there easier to replace with the motor in..yes i did a firebirds freeze plugs with the motor in the car a bunch of people said i was crazy but i got it done!!as soon as i did it started leakin between the motor and and bell housing...so on a chevy 3.2 v6 or whatever it was there is one freeze plug on the back side of the motor not sure about the napsz though....

Man that gives me a little hope.. Thanks..

[AZhitman]

My guess is, that's not the problem with this engine.

SM, have you drained the oil to look for water contamination?

[shortmorgan]

My guess is, that's not the problem with this engine.

SM, have you drained the oil to look for water contamination?

I've checked it but I haven't drained it yet..

I found a motor today for $50. So this is the route I'll probably take.. I'll see how ggod of shape it's in soon..

[flinterman2000]

Water doesn't shoot out of freeze plugs. It may seep out, but not shoot out.

You're gonna need a rebuild, brotha.

Yep. Water or antifreeze can shoot out what you all call the freeze plug. If the whole plug is removed or corroded then it wont, but a small hole in it and if sprays. By the way down here we call it the water jacket plug.