SoCal Jet Boats
Tech Talk => Engine Mechanical / Electrical => Topic started by: fullfam1 on March 31, 2015, 05:10:36 PM
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Any ideas? I have a 455 olds and it's running too hot, this is my setup water from jet to logs, logs to water pump plate, Tstat housing empty to snails....I do have a pressure regulator off the pump dumped overboard. Will too much pressure cause it too run hot? Picked up a pressure gauge on the way home from lake but need to check it on the water, motor runs cool on the hose. Thanks guys
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What pump? Is there a chance the block is full of sand? What is your pressure regulator set for?
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Thanks GT it's a C pump I had my 545 ford in this boat no issues then swapped motors out of my other jet boat it ran 160 in this boat. I pulled the hoses off at the lake at the Tstat and had water flowing. No sure pressure yet as I just bought a gauge today. Seems like I have lots of water/steam out of exhaust....what should my pressure regulator be set at?
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Thanks GT it's a C pump I had my 545 ford in this boat no issues then swapped motors out of my other jet boat it ran 160 in this boat. I pulled the hoses off at the lake at the Tstat and had water flowing. No sure pressure yet as I just bought a gauge today. Seems like I have lots of water/steam out of exhaust....what should my pressure regulator be set at?
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No more than 15 pounds.
It sure sounds like a restricted fitting or hose.
GT
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That's the crazy part, I pulled motor and dropped it in other boat didn't change any hoses or fittings
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Well I think I found the problem hose off jet sitting under motor might have been constricting flow
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Im putting some very nice parts in this new motor and really have to figure out the best cooling set up.
GT Jets fill us with your knowledge please
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Im putting some very nice parts in this new motor and really have to figure out the best cooling set up.
GT Jets fill us with your knowledge please
When you say best, what are you looking to do?
GT
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Im pretty sure hes saying hes not going with just a Gate.
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;D
I was just talking smack >:D
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Im pretty sure hes saying hes not going with just a Gate.
I kinda got that, but there is closed cooling, pump assisted, primary secondary, preheat and dump, double pass, side loop. There are a lotta ways to skin that cat...
GT
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;D
I was just talking smack >:D
:-*
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I kinda got that, but there is closed cooling, pump assisted, primary secondary, preheat and dump, double pass, side loop. There are a lotta ways to skin that cat...
GT
well last motor gave me a burn from the log, so i can't break the bank but want a good solution. guessing 50-60mph at 4k rpm and jst can't take another hit. any suggestions?
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Im pretty sure hes saying hes not going with just a Gate.
500 hp BBC, well over 400 hrs, cooling system has ONLY a gate valve, (logs and snails) runs 135*-140*, all day long. 'Long' no wake zones, 150*-155*
Berkeley set it up right the first time...Just sayin'
Dan'l
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Sounds like the relief valve is set too low. You'll know once u get the gauge on there. Just keep tightening till u see 15ish at wot. I'd think the block was clogged but u said it runs fine on the hose.
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Ok pull your freeze plugs out and clean out all the valleys u seam to have some sand stuck inside your block. I'm running a 455 too and I never see above 100 on temp where ever I go. U want to set your gate valve down to 12 psi from the pump.
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Well logs n snails dont even need a valve cause the water floooooows
the issues happen when you have ot headers AND not enough of a path for the water/pressure to exit = 2 much inlet not enough outlet
Yup u probly got sand in your path
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Well logs n snails dont even need a valve cause the water floooooows
the issues happen when you have ot headers AND not enough of a path for the water/pressure to exit = 2 much inlet not enough outlet
Yup u probly got sand in your path
You definitely need a valve. On all applications.
Imo.
The valve should be throttled to obtain some temp at idle.
GT
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Well logs n snails dont even need a valve cause the water floooooows
the issues happen when you have ot headers AND not enough of a path for the water/pressure to exit = 2 much inlet not enough outlet
Yup u probly got sand in your path
WRONG... to the Uninformed...
Gate valve on my JUNK, all four of them, 3, yes three with headers... NEVER a 'pressure relief valve'...just a gate...'Keep Is Simple Stupid'... aka the kiss method....
Boating on Easter...
Dan'l
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WRONG... to the Uninformed...
Gate valve on my JUNK, all four of them, 3, yes three with headers... NEVER a 'pressure relief valve'...just a gate...'Keep Is Simple Stupid'... aka the kiss method....
Boating on Easter...
Dan'l
Woah.
Easy there turbo.
Lol
GT
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U have 3 people telling u need a gate valve GTJETS and MASH ON IT two of the people that got me on the water with no problems. These guys have bin on here the longest they know their shit always kiss bro. And like I said u got some blockage in your block clean it out. This is my olds and I love it.
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U have 3 people telling u need a gate valve GTJETS and MASH ON IT two of the people that got me on the water with no problems. These guys have bin on here the longest they know their shit always kiss bro. And like I said u got some blockage in your block clean it out. This is my olds and I love it.
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Chad...
The Miller... Has been machined for a shoe ride plate...detailed PJX SS impeller By M.P.D...diverter has been rebuilt...getting ready for oak floors...bottom straightened, painted and speed coated...building cav plates, looking for hardware...turn fin built and installed...need a seat
cj212...hopefully...need an eyeball
Dan'l
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and a gate valve
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Woah.
Easy there turbo.
Lol
GT
T* (out) - T* (in) = 50* or so... that's the ballpark
or 3/4 of a turn from wide open, ~or so~
Its 'just logs and snails'
Dan'l
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Dan'l sounds like it's going to be a runner can't wait to see her its bin along time. Will be in avi in May 2 all weekend maybe stop by and see her if u have the time.
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Your right a gate would probly work just fine. I just like dissin the gate cause its twists your panties.
All BS aside I have had gates they worked on my past boats
On my current boat I could not get my block pressure down. Larger dumps didnt matter.
The solution that worked on my setup was the relief setup. I don't wanna get the guy off track to a solution. A gate is cheap. He has a RV already and as mentioned he has restriction in the block. Im sure he will get it with his gauge and get her going good again
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Dan'l sounds like it's going to be a runner can't wait to see her its bin along time. Will be in avi in May 2 all weekend maybe stop by and see her if u have the time.
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still have boxes o parts for the Miller...waiting on the machine shop...still need tires and wheels...and a stacked tank...build a apba legal "rudder"and a seat and a helmet and a lifeline jacket...and... wtf???
Dan'l
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Thanks everyone for the info took jet out yesterday ran perfect 160* all day long
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Thanks everyone for the info took jet out yesterday ran perfect 160* all day long
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That's good to hear. What did you do to fix the issue?
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Stupid problem....when I dropped motor in oil pan was on top of inlet hose from jet constricting some flow, moved hose to side and secured then adjusted my pressure relief valve and problem solved
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Stupid problem....when I dropped motor in oil pan was on top of inlet hose from jet constricting some flow, moved hose to side and secured then adjusted my pressure relief valve and problem solved
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Been there-done that. Lmao.
GT
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I just re routed my water lines to try to plan for that. Glad to hear I was thinking right. Also glad it is fixed.
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