Hydrolock=fixed ---> What is next....

Davenc

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Re: Hydrolock=fixed ---> What is next....

I wouldnt change one side and not the other. I'm no mechanic but I have talked to many this last week when I was going through this. Searay is telling you the best place to purchase what you need for both sides at half the cost of one side.<br />doing one side is a huge gamble,why bother?
 

kimchee

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Re: Hydrolock=fixed ---> What is next....

Ralph, I am in Brooklyn, New York<br />DaveNC, How hard would you rate this job from a scale of 1-10... I would consider changing the starter on a difficulty scale of 3<br />Although I think I should change it myself, my mechanic was nice enough to do a compression test for me out of his kindness.. And since I appreciated this, I let him do one side of the manifolds... Don't get me wrong, I love my marina, and the staff there, I just hate being at anyones MERCY !!! Which was the case in the past with my car, but as I learned more about my car, that helpless feeling of letting mechanics charge whatever they wanted went away...<br />I would like this helpless feelin go away with my boat as well...<br />It seems that everyone with I/O usually have problems... But those with outboards never have problems, is this true ??? Or is it just my imagination?
 

steve n carol

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May 8, 2004
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Re: Hydrolock=fixed ---> What is next....

"How hard would you rate this job from a scale of 1-10"<br /><br />A two...because of the wieght and <br />accessibility...sl<br /><br />Carolyn says a "5" because of the wieght. and maybe a "7" if they are black, (cause then they have to be painted, somthing pretty)
 

Scaaty

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Re: Hydrolock=fixed ---> What is next....

My take here is you have a bad manifold. Simple. I just lost mine too, and in the process on replacing both sides. I got water in the oil too (salt). I dumped the oil, blocked off the bad manifold, ran it for a few minutes, dumped the oil again (filter too), and the next oil change was with 2 quarts of kerosene in place of 2 quarts of oil. Ran this for a few minutes and dumped it. I have the raw water pump belt off, so its only block water now, so I can't run it too long. Now I did a full oil change (filter too) again, and also fogged it and shut it off. Its the best I could do.<br /> Now I don't know how long you waited with with the empty crankcase, but whats done is done. Try to put fresh oil in, disconnect all pumps, and run for a minute or so. Do this again with the kero, and again with fresh oil (yep, more filters). Put a new manifold on and use it. If you have solid steady oil pressure, I think you will be ok. Now you need to put the other side(new manifolds) on. Its a matter of time on that side too. And on starters and flywheels and whatever........if it starts, ignore it. Engines only last 10-15 in salt? Mines a 96 repower, and plane at least another 10. What you say here is what you should do. I would too. <br />"My revised plan is to:<br />Change the starboard mani/spacer/riser.<br />Frequently check the port side plugs, and look for signs of water. <br />Hopefully the starboard side plugs will have NO water after this.<br />Hope for the best with the flywheel, and deal with it when it becomes a problem."<br /><br />Go for it, and I wish you good luck. Nobody has a crystal ball, but we all have Angels, and they don't let us down........
 

Scaaty

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Re: Hydrolock=fixed ---> What is next....

Oh yeah....spark plugs out when you do the mans, they will somehow manage to slip and break'em
 

kimchee

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Re: Hydrolock=fixed ---> What is next....

Thanks Robby, you're GREAT, especially with the encouragement !!!<br /><br />Thanks everyone for taking the time out to read this newbie thread... It's very lengthy as I look back on it...<br /><br />I will keep everyone posted on the condition of the engine as I will soon find out... Later this week...
 

Davenc

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Re: Hydrolock=fixed ---> What is next....

kimchee a kid could do this repair, honestly. The weight of the manifolds are the biggest problem. I put a dab of black gasket sealer on the corners of the gaskets to hold them in place.<br />Then I just started two bolts to keep things in place. It took me ten minutes a side. After you run the boat for a bit just check to make sure the bolts stay tight.
 

Davenc

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Re: Hydrolock=fixed ---> What is next....

kimchee a kid could do this repair, honestly. The weight of the manifolds are the biggest problem. I put a dab of black gasket sealer on the corners of the gaskets to hold them in place.<br />Then I just started two bolts to keep things in place. It took me ten minutes a side. After you run the boat for a bit just check to make sure the bolts stay tight.<br /><br />Sorry hit the button twice.lol
 

Haut Medoc

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Re: Hydrolock=fixed ---> What is next....

I would change both sides, (riser & manifold)...Most set-ups are pretty easy, and don't take alot of skill....For $750. you should be able to replace both sides easily, maybe cheaper if you shop around......If the block is shot from the water intrusion, you will get a rebuilt one and then you would put new ones on anyway, right? Put the new ones on, do what Robbie says, (1st) & hope for the best....JK
 

Scaaty

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Re: Hydrolock=fixed ---> What is next....

Theres a good chance the gaskets that come with the manifolds come with the end holes cut out on the bottom, so you just just slip it on after getting the end bolts started. I would do the manifold, then the rubber into the riser and Y pipe, THEN bolt the riser to man, and snug everything up to spec. And put everything together clean and dry...no goop
 

Davenc

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Re: Hydrolock=fixed ---> What is next....

Dayum Robby, I didnt even think thats why the gaskets were shaped that way. what a dope I am.<br />Oh well live and learn.
 

TilliamWe

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Re: Hydrolock=fixed ---> What is next....

gaskets could be shaped that way, but don'y bet on it. Just got the gaskets for my 1997 5.7LX EFI, and they have 4 round holes. Gonna be a challenge to hold the manifold & start the bolts, and get the gasket to stay all at the same time. I am going to reinstall the elbow on the Y-pipe, and fit the riser end into it, so I have something else holding the weight. :D
 

Davenc

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Re: Hydrolock=fixed ---> What is next....

Originally posted by TilliamWe:<br /> gaskets could be shaped that way, but don'y bet on it. Just got the gaskets for my 1997 5.7LX EFI, and they have 4 round holes. Gonna be a challenge to hold the manifold & start the bolts, and get the gasket to stay all at the same time. I am going to reinstall the elbow on the Y-pipe, and fit the riser end into it, so I have something else holding the weight. :D
Thats what I did. Plus I gooped the gasket a bit to hold them in place. Boat runs awsome.
 

rbezdon

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Re: Hydrolock=fixed ---> What is next....

On my 5.7 I put the two end bolts through the manifold first and then slid the gasket onto the ends of the bolts sticking out of the manifold then lifted the manifold in near the right place with one hand and pushed in the bolt into the hole in the fead and hand tightened, then went to the other end and did the same. The first bolt will support one end of the manifold no problem until you get the other. I dont think it is a good idea to use the goop on exhaust gaskets due to the exposure to raw exhaust gases. I dont recommend assembling to the elbows as this doubles the weight of the assembly and the rubber hose is not very forgiving and flexible and alignment is really tough. Stck with just the manifold and put the gasket on the manifold side first. Its easy.
 

Anthony200482

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Sep 30, 2005
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Re: Hydrolock=fixed ---> What is next....

I just went through that prob on my 91 350 Mercruiser. Port manifold was cracked. I looked for days and found them as low as $450 complete kit both sides. <br />I am not a mechanic by far and I found them very easy to replace. I replaced both of them not just the one and was done in about 2 hours start to finish. The hardest part was the weight of the manifolds.... I used a stud to guide them in and had no problems. <br />$700 per side seems way too much, if you can change a tire you can easily change manifolds.<br /><br />Good luck
 

Scaaty

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Re: Hydrolock=fixed ---> What is next....

Just pulled my old heavy Barr "Camelback's" off today. 2x4 across the beam, tied a rope around the mans, and then short pieces of wood under the 2x4 ends, jacking it up until the mans were suspended. Took the last 2 bolts out, and swung it out of the way. Going in will be the same (mans only, no riser), and I might use heavy duty (a few) bungee cords instead.
 

Bt Doctur

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Re: Hydrolock=fixed ---> What is next....

IF you have the room, install 2 threaded rods in the block first and slide the manifolds on,install 2 bolts, remove threaded rods, install remaining bolts. A bit of "anti-seize dosent hurt.
 

Bt Doctur

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Re: Hydrolock=fixed ---> What is next....

IF you have the room, install 2 threaded rods in the block first and slide the manifolds on,install 2 bolts, remove threaded rods, install remaining bolts. A bit of "anti-seize dosent hurt.
 

Scaaty

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Re: Hydrolock=fixed ---> What is next....

Originally posted by Bt Doctur:<br /> IF you have the room, install 2 threaded rods in the block first and slide the manifolds on,install 2 bolts, remove threaded rods, install remaining bolts. A bit of "anti-seize dosent hurt.
Also you could just saw off the heads of two old exhaust bolts!
 
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