SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: boscoooo on July 19, 2014, 06:29:25 PM
-
So my string of bad luck continues I just got my pump back from gs Marine took the boat out today and found water in the oil. I'm not sure what caused it due to the fact the motor ran grate all day it never missed a beat. My question is I'm going to the river in 2 weeks should I just change the oil and run it or park it and cancel my trip ?
Sent from my iPhone using SoCal Jet Boats
-
Water in your oil is usually a relatively easy fix.
I'd figure it out.
First: Logs or OT's?
Second: Do you have a gate valve (not a ball valve) at the pump?
You might just be intake manifold gaskets away from fixing it.
-beerjet-
-
I have logs and and I have a gate valve
Sent from my iPhone using SoCal Jet Boats
-
Let's start again...
beerjet was trying to spur you for more information..
There are a few different causes for the banana milkshake.
First, how much water are we talking? Is the oil just a little milky, or did it actually raise the level?
Where was your water temperature running?
Has it done this before?
What motor? Seems irrelevant, but the Ford 460 and the Olds 455 both have substandard intake manifold designs around the water ports.
Basic causes...
Intake gasket leaks, this puts water right down the lifter valley, could be related to pressure, but doubt that on logs.
Cracked block, this could have numerous causes and can break in a whole bunch of different areas, normally due to freezing.
Cracked head or pulled valve seat.
Cracked exhaust log, easy to verify if a two hose manifold, simply block off one hose and pressurize the other... Should hold 20 PSI of air without issue.
Cracked riser, more difficult to diagnose.
Cam duration and lobe centers, if you have a lumpy cam, it could be reversion, this is especially true on a log deal.
Water left in the bilge while in storage, if the water level is deep enough in the hull to go above the front or rear main seals, she take take water in without you being the wiser.
Head gaskets, probably last on my list unless the heads were torqued improperly or it severely overheated.
Over pressurization, difficult to do with logs, yet not at all impossible...
Hope this helps and hope something sticks out...
GT
-
Let's start again...
beerjet was trying to spur you for more information..
There are a few different causes for the banana milkshake.
First, how much water are we talking? Is the oil just a little milky, or did it actually raise the level?
Where was your water temperature running?
Has it done this before?
What motor? Seems irrelevant, but the Ford 460 and the Olds 455 both have substandard intake manifold designs around the water ports.
Basic causes...
Intake gasket leaks, this puts water right down the lifter valley, could be related to pressure, but doubt that on logs.
Cracked block, this could have numerous causes and can break in a whole bunch of different areas, normally due to freezing.
Cracked head or pulled valve seat.
Cracked exhaust log, easy to verify if a two hose manifold, simply block off one hose and pressurize the other... Should hold 20 PSI of air without issue.
Cracked riser, more difficult to diagnose.
Cam duration and lobe centers, if you have a lumpy cam, it could be reversion, this is especially true on a log deal.
Water left in the bilge while in storage, if the water level is deep enough in the hull to go above the front or rear main seals, she take take water in without you being the wiser.
Head gaskets, probably last on my list unless the heads were torqued improperly or it severely overheated.
Over pressurization, difficult to do with logs, yet not at all impossible...
Hope this helps and hope something sticks out...
GT
[/quote
The oil only seems a little bit milky it doesn't seem like a lot of water in there and the motor is a pretty much a stock 460. And as far as water temp goes it never went above one 160.
Thanks GT
Sent from my iPhone using SoCal Jet Boats
-
I would re-seal the intake and let her buck, see what happens.
Use some Permatex number 2 around the water ports.
Might just be me though..
Good luck.
GT
-
Hey wen i ran mine today for a little bit it started to get hot...i assume tomorrow wen i try again i just need to turn hose on more
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
I would re-seal the intake and let her buck, see what happens.
Use some Permatex number 2 around the water ports.
Might just be me though..
Good luck.
GT
no water in my oil so far tho ..knock on wood
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
Hey wen i ran mine today for a little bit it started to get hot...i assume tomorrow wen i try again i just need to turn hose on more
Sent from my PantechP9070 using SoCal Jet Boats mobile app
I have never been able to tell a darn thing on a hose.... If it is too warm, turn up the hose... Difficult to do that on the lake.... ;)
GT
-
I have never been able to tell a darn thing on a hose.... If it is too warm, turn up the hose... Difficult to do that on the lake.... ;)
GT
yea hose is going on full blast...i tried to go to lake today baryessa but my dam seat boxes were to tall for new seats so gonna start makeing new ones tomorrow...😂
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
yea hose is going on full blast...i tried to go to lake today baryessa but my dam seat boxes were to tall for new seats so gonna start makeing new ones tomorrow...😂
Sent from my PantechP9070 using SoCal Jet Boats mobile app
also i assume the break in process is not under load?
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
also i assume the break in process is not under load?
Sent from my PantechP9070 using SoCal Jet Boats mobile app
Your assumption is correct.
Varying RPM keeping around the 2,000-2,500 area with the occasional rev to splash the oil around. Disconnect the DL.
-
Your assumption is correct.
Varying RPM keeping around the 2,000-2,500 area with the occasional rev to splash the oil around. Disconnect the DL.
ooooooh snap!!! How do disconnect DL wirhout pulling engine back out?
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
ooooooh snap!!! How do disconnect DL wirhout pulling engine back out?
Sent from my PantechP9070 using SoCal Jet Boats mobile app
Lemme guess, three point mounts?
GT
-
Lemme guess, three point mounts?
GT
yuuuuup
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
yuuuuup
Sent from my PantechP9070 using SoCal Jet Boats mobile app
how know that sheeet hahaha cuz im a rook? U always know wat i got goen on GT hahhah
Sent from my PantechP9070 using SoCal Jet Boats mobile app
-
I would re-seal the intake and let her buck, see what happens. If there's water getting into the intake wouldn't that cause a vacuum leak and cause the boat to run like junk
Use some Permatex number 2 around the water ports.
Might just be me though..
Good luck.
GT
Sent from my iPhone using SoCal Jet Boats
-
If there's water getting into the intake wouldn't that cause a vacuum leak and cause the boat to run like junk
Not necessarily.
There is approximately 15-20 pounds of pressure in the water port where as there is only about 18"hg vacuum at the intake ports...
18"hg vacuum equals about -6 psi.. ;)
-
I have a question.... is there a preference between a ball valve and a gate valve? And why?
Sent from my SCH-I535 using SoCalJetBoats mobile app
-
I have a question.... is there a preference between a ball valve and a gate valve? And why?
Sent from my SCH-I535 using SoCalJetBoats mobile app
Search function.....
This has been beat to death.
-beerjet-
-
I have a question.... is there a preference between a ball valve and a gate valve? And why?
Sent from my SCH-I535 using SoCalJetBoats mobile app
You get more control of flow with a gate valve.
From GT's first post
"What motor? Seems irrelevant, but the Ford 460 and the Olds 455 both have substandard intake manifold designs around the water ports."
I have an Olds and a ball valve on the inlet from the jet. When I first got my boat, I had to have the engine rebuilt.
When I took it out for the first time, milkshake . I had the ball valve wide open. I ended up backing off the ball valve and haven't had a problem with water in the oil again.
-
Search function.....
This has been beat to death.
-beerjet-
Really?
I didn't think it was quite dead yet.
:o
Sent from my SGH-T989 using SoCal Jet Boats mobile app
-
Really?
I didn't think it was quite dead yet.
:o
Sent from my SGH-T989 using SoCal Jet Boats mobile app
Well, if it's still warm, Imma put my wiener in it!
-beerjet-
-
Really?
I didn't think it was quite dead yet.
:o
Sent from my SGH-T989 using SoCal Jet Boats mobile app
what's a valve??
:o >:D
-
Well, if it's still warm, Imma put my wiener in it!
-beerjet-
Did you used to write for Hallmark Greeting Cards?
That's beautiful.
GT
Sent from my SGH-T989 using SoCal Jet Boats mobile app
-
Lol
Sent from my SCH-I605 using SoCal Jet Boats mobile app
-
Did you used to write for Hallmark Greeting Cards?
That's beautiful.
GT
Sent from my SGH-T989 using SoCal Jet Boats mobile app
I'm going to guess that will be the card on the 99 cent rack lmao
Sent from my SAMSUNG-SGH-I747 using SoCal Jet Boats mobile app