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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #50 on: August 24, 2014, 11:07:02 AM »
Thanks for the clarification GT, I had mine set at 140 at cruise if I'd go straight to idle it would touch 170-175 then even out around 160-165...


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That sounds about perfect. The reason it rises like that is heat soak. Perfectly normal.

GT

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Ray

MorePower

  • Karma: +20/-0
Re: Getting hot
« Reply #51 on: August 24, 2014, 12:24:58 PM »

That sounds about perfect. The reason it rises like that is heat soak. Perfectly normal.

GT

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That's what I figured, if whenever I could, I would take it down to around 1800rpm for a minute before letting it set at about 1000rpm, I wouldn't ever have the heat soak issue


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JARVIS

  • Karma: +18/-0
Re: Getting hot
« Reply #52 on: August 24, 2014, 01:10:45 PM »
The one you have labeled "to circulation pump" needs to have  the arrow flipped around, otherwise yup...

The water simply bypasses the engine when it's cold... No hockus pokus, these actually work OK at WOT, but could cause issues if the thermostat used was warmer than a 160°F.

Still a bypass system.


Are you familiar with this system?
Is there a circulating pump as info says?
Also...does this system suffer from over pressurizing of block?

Sorry for the highjack...
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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #53 on: August 24, 2014, 01:35:09 PM »
There is no pump.  Just s little different way of plumbing it. 

And all systems have the potential for over pressurization.

Turn the water down until a temp rise at idle is realized. ...

With logs, the least amount of water possible mixing in the risers will allow better exhaust flow and improved performance.

GT

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« Last Edit: August 24, 2014, 02:21:21 PM by GT Jets »
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Ray

JARVIS

  • Karma: +18/-0
Re: Getting hot
« Reply #54 on: August 24, 2014, 02:46:57 PM »
There is no pump.  Just s little different way of plumbing it. 

     got it...



Turn the water down until a temp rise at idle is realized. ...

     there is no valve.  supply comes straight from pump to that housing....then goes into block and into & out of exhaust then out thru ..water exits exhausts

With logs, the least amount of water possible mixing in the risers will allow better exhaust flow and improved performance.

      so are there just two types of exhaust, logs and headers?  i thought logs looked like .....logs which then go to snails.  i have center rise exhaust, no snails.

 :beer: :beer:   

GT

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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #55 on: August 24, 2014, 02:56:22 PM »


     got it...


there is no valve.  supply comes straight from pump to that housing....then goes into block and into & out of exhaust then out thru ..water exits exhausts


IMHO, you should always have a valve, even if it is wide open. Lets just say you blow a hose off the engine... With a valve, you can isolate it and keep the boat from sinking.

so are there just two types of exhaust, logs and headers?  i thought logs looked like .....logs which then go to snails.  i have center rise exhaust, no snails.

 :beer: :beer:   


Well, sort of, there are actually six.

1. Old school logs and risers.

2. Logs with OT pipes.

3. Center riser manifolds.

3. Headers over transom.

4. headers over transom

5. through transom headers.

6. water jacketed headers (typically through transom, but have seen over).

They all have there idiosyncrasies and issues, logs with through transom risers have the least performance, but more often than not, the least amount of issues. Center riser fall under the same category.

Just my opinions.

GT
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Ray

JARVIS

  • Karma: +18/-0
Re: Getting hot
« Reply #56 on: August 24, 2014, 03:13:05 PM »
ha.  i just re-read the 'info' on this cooling deal.  whats written is not exactly what i have.  i describes an automotive type water pump, which is supplied by jet, circulates water thru engine.  other than the pump...its as i described previously.  hence why i asked about a pump...

ill look into getting a valve installed...for safety.

cant help feel like i have an odd ball cooling setup...that no one else uses....and it must be for a reason.
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MorePower

  • Karma: +20/-0
Re: Getting hot
« Reply #57 on: August 24, 2014, 03:18:41 PM »
All I ran was -8 from the pump into the motor with a gate valve at the pump. Then had -10 out. Temp stayed consistent and was very simple.... I ran dry headers so had no worries about the basset T


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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #58 on: August 24, 2014, 03:23:20 PM »
ha.  i just re-read the 'info' on this cooling deal.  whats written is not exactly what i have.  i describes an automotive type water pump, which is supplied by jet, circulates water thru engine.  other than the pump...its as i described previously.  hence why i asked about a pump...

ill look into getting a valve installed...for safety.

cant help feel like i have an odd ball cooling setup...that no one else uses....and it must be for a reason.

Not really, you have a very common system. They actually work very well. The big issue on your is I believe it utilizes a sheet metal water pump backing plate and they are prone to rusting through...

GT
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Ray

JARVIS

  • Karma: +18/-0
Re: Getting hot
« Reply #59 on: August 24, 2014, 04:21:56 PM »
Not really, you have a very common system. They actually work very well. The big issue on your is I believe it utilizes a sheet metal water pump backing plate and they are prone to rusting through...

GT

i havent seen anyone on here with a similar set up....or even when googled.  i take it the concept of my set up is whats common.  yes...?
as far as sheet metal...not sure.  there is a fair amount of rust on the entire motor.  outer cover is aluminum.
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jamminjetta

  • Karma: +1/-0
Re: Getting hot
« Reply #60 on: September 04, 2014, 01:53:10 PM »
I'm pulling the engine this evening and knocking out all the freeze plugs and washing out the water jacket.


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jamminjetta

  • Karma: +1/-0
Re: Getting hot
« Reply #61 on: September 04, 2014, 07:37:48 PM »
Water jacket plum full of sand on back two cylinders.


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JARVIS

  • Karma: +18/-0
Re: Getting hot
« Reply #62 on: September 04, 2014, 07:59:36 PM »
$hit man!  good call :thumbup:
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jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #63 on: September 05, 2014, 08:48:37 AM »
I dont know GT.

Kinda looks like I see you "not advising against" a T-Stat and bypass system here.

Even looks like you agree with the 160* temp

Im not saying your saying to use it!  Just saying it sounds like you warmed up to the idea slightly. 
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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #64 on: September 05, 2014, 09:35:34 AM »
I dont know GT.

Kinda looks like I see you "not advising against" a T-Stat and bypass system here.

Even looks like you agree with the 160* temp

Im not saying your saying to use it!  Just saying it sounds like you warmed up to the idea slightly.

Let me answer you this way.  Which I hope is taken diplomatically.

I have used thermostats on marine engines. I have used both styles (with and without engine pumps).

I have seen the bypass type kits do some really wonky stuff to engines, the water pump type is bulletproof.

As for "recommending" the bypass stat kit... no.  But if you have one and you feel it works,  I will not tell you you need to pull it off. I will just warn you of the potential issues.

As for the "160 degree temp" that is the highest temp I recommend on an open system... So I wrote it as 160 or less. ...

A warm engine does in no way make more power. No one has ever proven that.

GT

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Ray

jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #65 on: September 05, 2014, 03:07:38 PM »
I just wanted to point out before you seemed totally against it and wanted to do nothing more than tell me how much of a bad idea it was to run one and just stick with the gate valve. 

You also made it seem I was crazy to wanna run 160 temp and you told me if you cold you would run as cold as you could. 

Let me point out your Grand dads advise and what he meant was everyone has something to learn.  I know you have tons of knowledge my gripe before was you seemed closed minded to the setup I run many run and how it helped me in my situation and made it seem like I was trying to steer someone the wrong direction. My point is for someone that seemed (maybe you werent) totally against it before your tune has changed. 

Just seems to me maybe you think a little differently about it now.  It be cool if you said yeah your right but Im sure Ill get something telling me how I'm wrong again.

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mash on it

  • Karma: +29/-0
Re: Getting hot
« Reply #66 on: September 05, 2014, 03:36:40 PM »
I just wanted to point out before you seemed totally against it and wanted to do nothing more than tell me how much of a bad idea it was to run one and just stick with the gate valve. 

You also made it seem I was crazy to wanna run 160 temp and you told me if you cold you would run as cold as you could. 

Let me point out your Grand dads advise and what he meant was everyone has something to learn.  I know you have tons of knowledge my gripe before was you seemed closed minded to the setup I run many run and how it helped me in my situation and made it seem like I was trying to steer someone the wrong direction. My point is for someone that seemed (maybe you werent) totally against it before your tune has changed. 

Just seems to me maybe you think a little differently about it now.  It be cool if you said yeah your right but Im sure Ill get something telling me how I'm wrong again.

Just get a gate valve... :banghead: 130*-135* all day long

Dan'l
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jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #67 on: September 05, 2014, 03:50:01 PM »
Not my point.  Ive had 3 boats 2 with just gates. Not my point at all.  My point is he changed his tune and I want him to fess up
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jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #68 on: September 05, 2014, 03:53:46 PM »
You slams someones advice then talk about it later as a possible suggestion I gotta call that out. Especially if maybe what we discussed he thought about and something changed his mind. 
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jimpen

  • Karma: +68/-0
Re: Getting hot
« Reply #69 on: September 05, 2014, 03:57:49 PM »
I have no dog in this fight but I like the safety of mine.

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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #70 on: September 05, 2014, 05:22:43 PM »
You slams someones advice then talk about it later as a possible suggestion I gotta call that out. Especially if maybe what we discussed he thought about and something changed his mind.

Never slammed any advice.  What I repeatedly saidwas that it is not needed in 90% of all cases.

You were saying your way was the "ONLY way" which is why you got a debate.

It is still not needed in my opinion, but got tired of having to explain the why and the why not to people like you.

If you absolutely MUST have all that crap, have at it.




I just wanted to point out before you seemed totally against it and wanted to do nothing more than tell me how much of a bad idea it was to run one and just stick with the gate valve. 

You also made it seem I was crazy to wanna run 160 temp and you told me if you cold you would run as cold as you could. 

Let me point out your Grand dads advise and what he meant was everyone has something to learn.  I know you have tons of knowledge my gripe before was you seemed closed minded to the setup I run many run and how it helped me in my situation and made it seem like I was trying to steer someone the wrong direction. My point is for someone that seemed (maybe you werent) totally against it before your tune has changed. 

Just seems to me maybe you think a little differently about it now.  It be cool if you said yeah your right but Im sure Ill get something telling me how I'm wrong again.

Again. Either completely out of context or your reading comprehension sucks.

160 AT THE WARMEST AT IDLE.

The engine will run fine at 130 balls out.  Must have said it a hundred times.

Everybody things that their set up is the best and that's great, but if someone has a problem that can be fixed with $20 worth of crap from an Ace Hardware, that is what I will recommend.

All the other crap is unnecessary if you follow some common sense.

GT

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Ray

jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #71 on: September 05, 2014, 07:51:27 PM »
Well I did learn to read on the Richmond Unified School district however I think your old ass is loosing his memory.

Heres my original post
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GT Jets

  • Karma: +192/-0
Re: Getting hot
« Reply #72 on: September 05, 2014, 08:20:10 PM »
Well I did learn to read on the Richmond Unified School district however I think your old ass is loosing his memory.

Heres my original post

Last post against you... Your first sentence confirms what I just said... "you need a regulator off your pump".... No, you actually don't.


edit;
However, if you did install one and your system was set up even in the ball park, it will never do a damn thing, so if and when you do need it, it will be corroded closed.



GT
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Ray

jet fever

  • Karma: +7/-2
Re: Getting hot
« Reply #73 on: September 05, 2014, 08:28:41 PM »
Dude don't make me re-post the whole damn thing.

He asked how to fix Pressure.  Pressure is NOT controlled by a gate valve.  Period.  If you say it does you havent leared shit in yoyr 30 yrs working on anything. 



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  • Karma: +192/-0
Re: Getting hot
« Reply #74 on: September 05, 2014, 08:37:58 PM »
Dude don't make me re-post the whole damn thing.

He asked how to fix Pressure.  Pressure is NOT controlled by a gate valve.  Period.  If you say it does you havent leared shit in yoyr 30 yrs working on anything.


You know, it is really sad, I thought you finally figured out that it indeed does control pressure.

If you limit the inlet water FLOW, and have a properly sized outlet, the pressure CANNOT exceed the flow potential. Ever.... In a bazillion years. It's like trying to fill a bucket with a 2" hole in the bottom.

If it does not limit pressure, then why does it seem to work so well?

Dude, I would quit while you are ahead. I am a union pipe fitter/steamfitter-refrigeration service Jpurneyman. I get paid to show people what is wrong with shit that is way more technical than a Berkeley jet pump and a big block Chevy...

GT
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Ray

 


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