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30K views 339 replies 58 participants last post by  HawaiianJet 
#1 ·
Well, I took the boat out tonight, and it was running good and hard. I could finally put my foot into it without it making any funky sounds. But, I think I might have ran it just a bit too hard.:):)punch Final pass, started to hear a clanking sound, said uh oh, better put it on the trailer.:)bulb Got it back to the house, pulled the passenger valve cover and here's what I found, yummy.:)st And the #8 intake rocker came off, and the push rod was sticking way out of the hole, and it won't go back down to where it normally sits, so I'm afraid for the worst. I'm going to pull the intake tomorrow and see what's up. But, looks like my season might be over now.:mad: Here's some pics.

Passenger side.




Drivers side.


:)hand
 
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#3 ·
Did'nt some one suggest to you to change all the nuts on you rocker studs last time this happened? Nuts loose again whoopy there goes the fun. As for the milkshake, I see something that is miss placed, that would be your ball valve on the intake. putting a restriction on the water discharge will cause an over pressure on the cooling system, could be up to 100+ psi possible. A valve should be located just off the pump, tee valve for the headers should be before the ball valve too.
 
#4 ·
Nope, pressure never got over 22 psi at WOT, about 52 mph.:)bulb Here's a pic to prove it (from today).;) My dump line is unrestricted so it doesn't build up a lot of pressure.;) The gate valve for the headers is before the t-valve. That is a 100 psi gauge, so if I had 100 psi I would know it. I think it has something to do with the damn spacers I have for the intake. I hope I didn't blow a head gasket.



:)hand
 
#5 ·
The pushrod won't go back down because it is bent. Buy a new one. The valve cover looks like milkshake most likely because of condensation. Your plumbing needs adjusted. Cold river water, hot engine, hot and cold spots in head = condensation. What does the oil in the pan look like?
 
#6 ·
I hope you're right, but I think thats a bit much for condensation. At least you know what to do about putting the rocker back sonce its happened before Patrick. What you need to do different this time is replace the nuts!! If it happened before and you used the same nuts, it will probably happen again. Just a guess here but I bet you're intake gasket is blown and letting water into the motor. You have double the chance with those spacers. Just a guess. I would have guessed too much water to the headers but it doesn't look like you have much judging by the pics.
 
#9 · (Edited)
The valve has nothing to do with the dump side. The boat only has 1 dump and the other fitting on the T-stat housing is the header water supply. The valve hooks up between there and the T-valve.

Regardless, IMO there is no better cooling system for a header equipped jet boat than the LPHV (low pressure high volume) cooling system, where you have 2 dump lines, a pressure relief valve adjusted to start opening at 12psi, and a thermostat and run the water full on unrestricted from the pump. 50 hours later and I've never seen even a hint of water in the oil...not even the "condensation" you speak of. This type of system eliminates hot/cold spots in the heads since it will have more than enough water coming in to completely fill the block and the thermostat holds it in the block longer. Constant temp regardless of pump RPM, no more hot/cold spots and no water in the oil.
 
#15 · (Edited)
HJ

You have gotten way more info than you need!!! Adjust your valves, properly. Set your timing, properly!!! Set the floats in your carb, properly!!
Make sure all your hardware is tightened properly.

Do you get the message!!!!!!!!!!!!!!!! Start at the basics:|err:|err

I will repeat myself!~~~~~~ Start at the basics, you are getting a lot of BS thrown at you!!!!
 
#16 ·
I agree. These are the facts.. This is what you NEED to do. The rest is speculation and guesses.

I would say you have a problem that extends past the basics though with water in the oil like that. Valves, timing, and the carb don't put water in the oil like that ;) Again we can sit here and guess what the problem is but it's up to you to find it ;)
 
#17 ·
your plumbing looks fine, lots of jets out there plumbed like that
and I like the idea of adjusting the amount of water going to the headers, it just takes a little time to find the sweet spot where your building heat during a WOT run and not getting hot during idle.

you may have thrown a lifter out of the bore if so check your cam and
lifter before you put it back in (have seen this twice)
if your lucky enough to not have hurt anything buy new nuts
for those rockers.

how many trips since you pulled a valve cover?
if it is condensation its a lot.
 
#21 · (Edited)
I thought about the lifter thing too, I just wasn't sure if that could happen. I'm going to pull the intake tomorrow to take a look at what's going on inside.

There is only 1 or 2 trips in between valve cover removal. I try to keep a pretty close eye on it, since the last 2 mishaps, thus the t-handles so I can quickly remove them from anywhere.;) It's got pretty cold here at night, then really hot during the day, could this be the cause of some of the condensation? 50* nights and mid 80's during the day, with pretty high humidity.

Thanks.:)

Just like this:



This was just condensation nothing wrong with the engine, the oil temp never got hot enough to burn the water out.

HJ your are shooting for a record on the thread starts about the same boat ?

Just wondering :)bulb ?

On the push rod, is it bent or do you think the lifter popped out ?

Sleeper CP :D
I'm thinking the lifter just popped out, cause I can stick the push rod in the lifter, but it is still up about 3/8" or so above normal. And I checked the pushrod on a machined flat surface.;)

Thanks Sleeper, that looks just like my valve covers.

Thanks.:)

I don't think you have an oil temp gauge so what was the water temp gauge reading HJ?
About 130* at speed, then up to about 140* at idle. Might have to restrict the water coming in just a hair to keep the condensation to a minimum.:)bulb

:)hand
 
#22 ·
I live in the desert so I cant say for sure, but I doubt its from
setting at night, without enough heat in the engine, its not going to
burn off the condensation, next time out adjust your back valve
clockwise/closed 1/4 turn at a time until you get some temp in the engine. you should be able to see thru the head and get some idea
if the lifter came out and wedged in the top of the hole. if you popped a lifter out your oil pressure should have fell off.
 
#23 ·
My oil pressure gauge doesn't work either, I guess.:)sphss It stays at 90 psi all the time, cheap ass gauges.:|err The only 2 that work are water temp and volts.:)sphss

:)hand
 
#24 ·
i've never seen the inside of a block milked unless it was actually taking in water. i've had bbc's,bbf's, and work on every brand motor you can imagine around here. if the v/covers ever get any milk buildup stuck to the inside, i start looking for a leak internally.i'm betting on a blown headgasket on both sides;) you weren't gonna keep runnin it half assed tuned the way you did without it bitin ya at some point.
 
#28 ·
hey man sorry to hear about your trouble , i would guess that you may have too much water going through the motor and to the pipes, it happens to everyone , hope you get it figured out , , remember you cant believe everything you read ,,,, some people are stupider than you and me put together ,,,
 
#30 ·
I've never seen a motor with that much water in it caused by condensation either. I've worked in the marine industry and have seen a lot, but every motor that came in like that either had too much water to it, blew a head gasket, or blew an intake gasket. It's normal to see a little, but thats a lot in your picture.

I'm not calling you a liar Sleeper, but I think you had some kind of extreme circumstances that caused that kind of condensation.
 
#32 ·
I saw that in his thread, he said it does it when he doesn't get his oil temps up over 220* for any amount of time. Sleeper can fill in the rest for ya. My engine stays pretty cold, so I doubt that the oil temps got up that high today. We only ran it for an hour tonight, but I did run it as balls to the wall as the boat will go. I'm going to mess with the back gate valve a little, after I get some posi-locks for the rockers.;) And I'll see how it does.:)

Thanks guys.:)
 
#33 · (Edited)
HJ,
Now that you've mastered pulling the valve covers, adjusting valves and routing plumbing lines, go get yourself a cherry picker. A boat that rides that wet under a load is bound to start busting out the bearrings. It will probably kick a rod as well and window your block beyond repair. But hey, you're having fun right??


Do yourself a favor and junk that pile of shit before it forces you to watch from the sidelines with nothing more than a bunch of broken parts.
Ineficiant hulls are hard on parts, especially stock parts.
Yank the engine and freshen it up, buy yourself a good hull and then go from there. You are better off having good stuff later then settling for the crap you have now. That hull is gonna put you in the poor house watching from the beach.........

Anything worth having is worth working for!!!!!! :)devil
 
#36 ·
HJ,
Now that you've mastered pulling the valve covers, adjusting valves and routing plumbing lines, go get yourself a cherry picker. A boat that rides that wet under a load is bound to start busting out the bearrings. It will probably kick a rod as well and window your block beyond repair. But hey, you're having fun right??

Do yourself a favor and junk that pile of shit before it forces you to watch from the sidelines with nothing more than a bunch of broken parts.
Ineficiant hulls are hard on parts, especially stock parts.
Yank the engine and freshen it up, buy yourself a good hull and then go from there. You are better off having good stuff later then settling for the crap you have now. That hull is gonna put you in the poor house watching from the beach.........

Anything worth having is worth working for!!!!!! :)devil
We've been over this before. There is a whole other thread that went in this direction, then back in the opposite direction. If I break it, then I'm boatless, not the biggest tragedy in the world.:)sphss Would save me lots of gas, but hey it's fun burning all that gas, right?:D

:)hand
 
#38 ·
Just as a side note, my engine runs cold. Even running the $hit out of it, it doesn't get over 130 degrees or so... So that "cold engine=condensation=water in the oil" theory doesn't really pan out either in my opinion. My engine has never looked like that. Take your time & check your hardware out before you go throwing money at it & adding stuff... It sucks, but I'd say you have a gasket leakin somewhere is all, intake or head. Dunno, I've been wrong before, but I'd say intake......

Good luck to you though HJ, you'll get it figured out.... :)devil
 
#39 ·
Let's compare, that one you posted was at about 30 mph. Here's a shot from today at about 54 mph, I just need more speed and it'll start to air out.;) At about 50 mph, I can slightly feel the hull start the lift out of the water, and accelerate, but then I run out of power so it never raises anymore. Sorry about the blurry pic, this is actually the best one.:)sphss

30 mph


54 mph


:)hand
 
#49 ·
You may or may not have a real water problem. Any time a rocker comes off like that, that cylinder is not firing and can easily draw a lot of water back into the engine. I've seen it happen many a time. Tighten up all of your intake bolts, retorque head bolts, put the rockers back on with good nuts, clean out the engine and change oil and filter, get your temperature up a little. Then go out and run it again for a while and see if it still showes water.
If you ran it very far with that rocker off, there's a good chance that is why you had water in your oil. Try his before you go spend a lot of money.
 
#54 ·
Thanks Duane!!!:) I've noticed a very faint clicking the past few times out, but it never got any worse, so I just left it alone and kept a close eye on it. Pops was driving, while I was observing how the hull was riding, when he said it went to ***** so I can't tell ya the exact moment of failure, but it probably had a few passes on it when it wasn't opening all the way, and then maybe 1 or 2 where it wasn't opening at all.

Thanks again.:)
 
#50 ·
WHAT THE FU*K---- its pretty chicken shit to say that about a guys boat , like if you dont spend twenty grand on a boat than your not having fun? some people dont have a shit load of money ,and can build a race boat just to drive it arround and tell people how shitty their stuff is.give the guy a break , he asked for some help from people that maybe have been doing it a little longer than him, and might have seen this problem before and know a solution,, instead he get some ass holes telling him a bunch of bull shit , that has nothing to do with the problem, and talking shit about something he has been working on for a long time and has put a lot of hard work into .. by the way i think he did a great job and am happy to see he is running ,, ,, all im saying is if you dont have a real answer for the guy than shut the hell up , , your just wasting everyones time , just to see your opinion on the screen ,,,,,,,,,,,,,,,,, I hate rich people !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I agree, let's all tell him to have fun and not worry about the other end. Let's all tell him to have fun and to ignore the thousands he's going to be spending in order to overcome the crappy hull. Hell, gettin squirrly at 54 mph is safe right?? Blowing up motors is a cheap fix and crashing into other boaters sure is a blast.
You can sugarcoat your advise all you want however when I read this stuff in a public forum, I will give the same advise to HJ that I would my own children. Funny thing is, my kids already know this stuff.
And I don't care how much hard work he's put into his boat. If it's the wrong boat, it's the wrong boat.
And I am not rich, however common sense does have it's advantages.
 
#52 ·
I had a nice long response typed out for ya, but I'm done focking with you dude!!!!!!!!!!:|err Stop jacking my thread, please!!!!!!!:)bulb

:)hand
 
#51 ·
As stated in the 1000 other threads that HJ started. Everyone started with a Pile when we were younger and were too poor to have a pro work on it. The absense of money has forced us all to build our own rides and has become fun in the process even when we do have the dough to pay someone else it is more satisfying to do it ourselves.

There is no way that running a boat and plowing the water is going to window the block. It is a motor out of a truck made for torque.

I ran a bass master brown tahiti with a 455 and had more fun boating than ever. It was my first boat. since then, I have boult, owned and restored several boats for myself and others. The way I learned was by doing, listening, reading magazines, looking at other boats and esentially stealing ideas to use on my next projects. I can't wait until I start my next one because there are so many things that I want to incorperate in my new boat.

I remember when I was young and had to compete with daddys money boys and I have beat them. If you want to bust his balls for working his ass off on a boat that he should be proud of getting together with limited previous knowledge and experience you should be ashamed. If your dad bought you a brand new boat and you had it serviced at the dealer all your life and you lease a new car each year, you need to get out of the tech section and go to the sand bar with the other dealer cash cows.

HJ, You do annoy the $hit out of me sometimes but I am proud of you and sadly see myself in you. Just know that, whatever MPH# you set your goal at, you will hit it and you will want more. The day I hit 100, which was my goal, I pulled the boat out of the water and sent my blower to the shop to be stripped to build more pressure to try to get another 14 MPH out of it.
 
#61 ·
Class isn't until 3:30 and I don't have class on Friday.;)

I'm gonna pull the intake off before class tomorrow morning, and see what the extent of the damage is.:)bulb

:)hand
 
#64 ·
Jesus h. Cut the kid sum slack. He is just like most of us when we started boating. Not all of us have deep pockets and can afford to pay sumone to build a boat for us. Hell we built my pump on a trash can in the front yard. Boats runs 75 with a 425hp motor. He doesn't have the best boat in the world but trashing him for loving the the boat the he has and wanting to get the best out of it is wrong.

Hj, if I was you I would stop posting up about this problem and that. Just read, learn and fix your boat. Don't start a thread everytime sumthing happens its only going to give people a chance to run there mouth. A lot of us started where your at and have managed to learn and make our boats faster. Just enjoy what you have and set a goal. When you reach that goal its going to be the best day of boating you have ever had. Just enjoy it bro, don't mind that dipshits.

On a side note, you have a blown gasket sumwhere. In guessing its the intake gasket that is leaking.
 
#65 ·
Jesus h. Cut the kid sum slack. He is just like most of us when we started boating. Not all of us have deep pockets and can afford to pay sumone to build a boat for us. Hell we built my pump on a trash can in the front yard. Boats runs 75 with a 425hp motor. He doesn't have the best boat in the world but trashing him for loving the the boat the he has and wanting to get the best out of it is wrong.

Hj, if I was you I would stop posting up about this problem and that. Just read, learn and fix your boat. Don't start a thread everytime sumthing happens its only going to give people a chance to run there mouth. A lot of us started where your at and have managed to learn and make our boats faster. Just enjoy what you have and set a goal. When you reach that goal its going to be the best day of boating you have ever had. Just enjoy it bro, don't mind that dipshits.

On a side note, you have a blown gasket sumwhere. In guessing its the intake gasket that is leaking.
I've got 2 chances per side, so it is very likely.:)bulb

:)hand
 
#68 ·
Hey HJ, you should try to get a video of your boat up on here..Pictures can be deceiving..you could have been porpoising at the moment the pic was taken..which makes it look like it's riding really wet. The other blurry pic doesn't look as bad. I have a pic of my 21' daycruiser just as i hit a little ripple..and the nose came up.. it looks like its riding like a gullwing....like i said pics are deceiving.

As far as the 54mph thing...dont' be too frustrated that's a damn close race for me in my sled! Maybe i'll bring my unit out to Kentucky and we'll line em up!
 
#69 ·
It's a nice place to run a boat. Post #267+ ;) Hawaiians on the Water

I don't have a video camera, or I would do that. That blurry pic is awful damn close to how it is riding. If I peak over the side, and mash the gas, I can see the water line move to the back and feel the boat lift.:D I'm damn close, if I can ever make it to 60 with this combo, I'll be happy for awhile.:)
 
#72 ·
Dont listen to that azzhole, HJ , I had more fun in my first 75mph jet than just about anything I've had since. I had to work on it also but as your doing , I leaned alot and I wouldnt take anything for those years of my life.
Keep doing what your doin.
 
#74 ·
Dont listen to that azzhole, HJ , I had more fun in my first 75mph jet than just about anything I've had since. I had to work on it also but as your doing , I leaned alot and I wouldnt take anything for those years of my life.
Keep doing what your doin.
Keep doing what your doing and you get what you always got.
It seems that some of you have missed the point. In most of HJ's post he is trying to find the solution to his problems. In nearly all his threads he says he "wants more speed" or that he "mashes the the throttle and it won't go any further". All he gets from most of you here is "hey, just have fun and love it the way it is". IS it the lack of knowledge that warrants this advice or pure lazzyness? If soemone wants to earn more money at work do you tell them to just enjoy working at McDonalds and then share first job work stories or do you give them a plan on how to become wealthy?
What good is insight and experience if you can't pass it on to a younger and willing generation?
I am not telling him to build a race boat, however I find it funny that you compare your first 75 mph to his 54 mph boat as if they are the same thing. You have 21 mph on him and probably a lot less problems doing so.
HJ will get nowhere by listening to a buch of "Yes Men". He will stay in his rut due to the fact that the people he is listening to are telling him that that's what he should do.
The more you guys treat him like a child the longer he will be one.
 
#75 ·
Seriously, HJ, you really need to GET RID OF THAT HULL!!! So when should I pick it up?? ;)

My boat runs nearly just as wet and I'm seeing 67 mph. I'm pretty sure I've done more than that also, but thats my best GPS so far. I think you could get there, but you need to work out all yr issues first.

Good luck with that milkshake issue. Hopefully it's nothing serious...
 
#79 ·
Cause it's a tall deck block. Spacers required to use an intake that's made for a standard deck on a tall deck.
 
#81 ·
Back to THREAD! HJ with the amount of moisture you have it is not a large problem! Look at one of impatient 1's post on milkshake eeww! That is bad,How long did you run it? It looks like intake gasket to me. I know you have spacers and that can present a problem! Check all bolts on intake before you take it off! If none are loose then when removing intake take care to try to remove it slowly to see if it has a bad spot or a water track from a water port!
You have worked long and hard on this boat and you should pride yourself in the experence you have learned! And yes if you keep on boating in the future you will own another boat at a later date when the time is right!
Don't let peeps get your Turkey feathers ruffeled!:)st You are learning the hard way but, YOU WON'T EVER FORGET IT! WT:)devil
 
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