I know that when an outboard motor is cooling properly it will be shooting water out of the exhaust that you can see above the waterline. I also know that an Inboard direct drive will exhaust at the water line and will be spitting out hotwater. But on an outdrive, which I have never owned how do you know if the water is pumping properly? does it spray out like an outboard? Thanks in advance for your help :boat:
A boat question
Started by garyd · Feb 18, 2011 · 28 replies
```1st boat should have a temp. gauge, or alarm like the one outboards have if you are low on oil it will go off, ```
on an outdrive it ( water ) is exiting out prop, so you can't see it, ```
``` Or, as we useto do on 1/4 miler v-drive, flat bottoms ( go fast boats )when we were running headers, or zoomies, which is pretty much all the time,``` find the water exhaust lines, usually rubber, where they connect to wet headers,one on each side,( v-8 ) put a "T" fitting & connect a rubber line to each "T" & run them to a nice chrome 2-tube 3/8 ID ( metal ) fixture that you mounted to transom, long enough to clear the transom, for example, if your transom width is say 12 inches, then cut tubes 14" put a 45 degree angle @ ends, ( for looks ) ```then @ any given time, just like an outboard, just look over your shoulder & you will see water shooting out of tubes, ```if you don't, then you know there is a problem,```if I had a outdrive, ``` this is the FIRST thing I would do to it, ```
this is very easy to do, ( this is pretty much the same thing that is done on OB'S, ``` where you see water shooting out side of motor )
``` but anyway, you should put fire, ( run ) to motor, BEFORE, you launch to make sure w/pump is working, I do before sailing, common sense dictates this, ```
on an outdrive it ( water ) is exiting out prop, so you can't see it, ```
``` Or, as we useto do on 1/4 miler v-drive, flat bottoms ( go fast boats )when we were running headers, or zoomies, which is pretty much all the time,``` find the water exhaust lines, usually rubber, where they connect to wet headers,one on each side,( v-8 ) put a "T" fitting & connect a rubber line to each "T" & run them to a nice chrome 2-tube 3/8 ID ( metal ) fixture that you mounted to transom, long enough to clear the transom, for example, if your transom width is say 12 inches, then cut tubes 14" put a 45 degree angle @ ends, ( for looks ) ```then @ any given time, just like an outboard, just look over your shoulder & you will see water shooting out of tubes, ```if you don't, then you know there is a problem,```if I had a outdrive, ``` this is the FIRST thing I would do to it, ```
this is very easy to do, ( this is pretty much the same thing that is done on OB'S, ``` where you see water shooting out side of motor )
``` but anyway, you should put fire, ( run ) to motor, BEFORE, you launch to make sure w/pump is working, I do before sailing, common sense dictates this, ```
Last edited: Feb 18, 2011 at 8:18 AM
Since most stern drive inboards are converted car engines, they use an automotive passive recirculation pump and thermostat. A temp gauge will tell you all you need to know about whether or not a stern drive engine is cooling properly.
If it is not cooling properly, then it gets tricky; because the problem can be:
1) the thermostat sticking
2) the passive low pressure water pump (the one attached to the engine)
3) the high pressure water source pump (the one that supplies the cool water to the passive system).
or
4) restriction or debris somewhere in the system.
I like Happy's idea for monitoring the high pressure system by running a small tube above the waterline.This would be a good indicator that the system is being supplied with cool water properly.
If it is not cooling properly, then it gets tricky; because the problem can be:
1) the thermostat sticking
2) the passive low pressure water pump (the one attached to the engine)
3) the high pressure water source pump (the one that supplies the cool water to the passive system).
or
4) restriction or debris somewhere in the system.
I like Happy's idea for monitoring the high pressure system by running a small tube above the waterline.This would be a good indicator that the system is being supplied with cool water properly.
Careful what you say about most stern drives being converted car engines. There are major differences in stern drive blocks/heads/for cooling passages which WILL not match up to car engines. I know of several fellas who've attempted to r&r heads from a car engine to a boat block and ended up trashing everything. Can't be done. The parts may fit, but boat blocks/engines are designed for a much more severe operation than a car engine. Case in point... how many of us squeal the tires every time we leave a stop light/sign? Compare this to captains who jump on the throttle as quick as they can.
Starting motors are different, same with carbs, injection systems, fuel pumps, alternators, everything. Marine certified parts are more expensive because if you have a small fire/explosion on the water, you may not be able to exit the same way as if in a car... just walk away.
Guys will put on car parts because they're cheaper, but they're playing russian roulette.
Don't know about drag boats using car engines/parts. I suspect they run in shallow water, and have assistance nearby.
Starting motors are different, same with carbs, injection systems, fuel pumps, alternators, everything. Marine certified parts are more expensive because if you have a small fire/explosion on the water, you may not be able to exit the same way as if in a car... just walk away.
Guys will put on car parts because they're cheaper, but they're playing russian roulette.
Don't know about drag boats using car engines/parts. I suspect they run in shallow water, and have assistance nearby.
Last edited: Feb 22, 2011 at 1:28 PM
don said:I know of several fellas who've attempted to r&r heads from a car engine to a boat block and ended up trashing everything. Can't be done.
I know people that have failed spelling tests, but that does not prove that spelling is impossible. If you know what you are doing, then yes, it can be done properly.
Starting motors are different, same with carbs, injection systems, fuel pumps, alternators, everything. Marine certified parts are more expensive because if you have a small fire/explosion on the water, you may not be able to exit the same way as if in a car... just walk away.
Guys will put on car parts because they're cheaper, but they're playing russian roulette.
None of these components are engine parts. They may be powertrain parts, but they are not part of the engine.
I went back and looked at my post, and I don't see where I stated that off the shelf parts from the neighborhood Autozone should be used on a boat. I do not condone that; but the statement that most major stern drives (Mercruiser, Volvo Penta, OMC) use engine designs originally applied to cars and trucks as their foundation is accurate. I never said that these designs weren't revised for application in boats...
If anyone interpreted what I wrote above as meaning that you can throw a rebuilt car engine in a boat and it will work, then that was not my intent.
moore_rb said:I know people that have failed spelling tests, but that does not prove that spelling is impossible. If you know what you are doing, then yes, it can be done properly.
None of these components are engine parts. They may be powertrain parts, but they are not part of the engine.
I went back and looked at my post, and I don't see where I stated that off the shelf parts from the neighborhood Autozone should be used on a boat. I do not condone that; but the statement that most major stern drives (Mercruiser, Volvo Penta, OMC) use engine designs originally applied to cars and trucks as their foundation is accurate. I never said that these designs weren't revised for application in boats...
If anyone interpreted what I wrote above as meaning that you can throw a rebuilt car engine in a boat and it will work, then that was not my intent.
DAMN! Now I have to rip apart what I just put together.
Thanks moore!!! LOL
```Foxy Knoxy ```
``` Hey, Hey, ``` Don,``` AKA ```Foxy Knoxy ``` :lol: :lol: :lol:
``` "Carefull what you say about most stern drives being converted car engines" ```
``` Baby, ``` there is NO such thing as a ```stern drive being a converted or otherwise, ( marine ) engine ```what you have is
``` A engine ```DRIVEN ``` stern drive, ```
```No wonder your```"several fellas" ``` got into trouble :lol: :lol: :lol:
``` I can see them now, ``` trying to mount a engine where the stern drive should be ! ! ! :lol: :lol: :lol:
``` Now for your info, ```"Foxy Knoxy" ``` :lol: :lol: :lol:
```"Don't know about drag boats using car engines/parts" ```
``` I can tell you that car engines are used exclusively in drag boats, ```however they are for the most part, ``` hipo motors, ```& they are not limited to shallow water, ```on this subject I know what I'm talking about, as I drove one some 30 yrs. ago, ```w/ a Holman Moody built 427 hipo ford, ```& I also know for a fact that ~ ~ ~
```Nasty Girls Like Drag Boats ```
don said:Careful what you say about most stern drives being converted car engines. There are major differences in stern drive blocks/heads/for cooling passages which WILL not match up to car engines. I know of several fellas who've attempted to r&r heads from a car engine to a boat block and ended up trashing everything. Can't be done. The parts may fit, but boat blocks/engines are designed for a much more severe operation than a car engine. Case in point... how many of us squeal the tires every time we leave a stop light/sign? Compare this to captains who jump on the throttle as quick as they can.
Starting motors are different, same with carbs, injection systems, fuel pumps, alternators, everything. Marine certified parts are more expensive because if you have a small fire/explosion on the water, you may not be able to exit the same way as if in a car... just walk away.
Guys will put on car parts because they're cheaper, but they're playing russian roulette.
Don't know about drag boats using car engines/parts. I suspect they run in shallow water, and have assistance nearby.
``` Hey, Hey, ``` Don,``` AKA ```Foxy Knoxy ``` :lol: :lol: :lol:
``` "Carefull what you say about most stern drives being converted car engines" ```
``` Baby, ``` there is NO such thing as a ```stern drive being a converted or otherwise, ( marine ) engine ```what you have is
``` A engine ```DRIVEN ``` stern drive, ```
```No wonder your```"several fellas" ``` got into trouble :lol: :lol: :lol:
``` I can see them now, ``` trying to mount a engine where the stern drive should be ! ! ! :lol: :lol: :lol:
``` Now for your info, ```"Foxy Knoxy" ``` :lol: :lol: :lol:
```"Don't know about drag boats using car engines/parts" ```
``` I can tell you that car engines are used exclusively in drag boats, ```however they are for the most part, ``` hipo motors, ```& they are not limited to shallow water, ```on this subject I know what I'm talking about, as I drove one some 30 yrs. ago, ```w/ a Holman Moody built 427 hipo ford, ```& I also know for a fact that ~ ~ ~
```Nasty Girls Like Drag Boats ```
Last edited: Feb 22, 2011 at 3:26 PM
HAPPY;34379```Nasty Girls Like Drag Boats ```[/QUOTE said:
You love talking about the "nasty girls". LOL:boat: I need to keep my eye out for them.:o:rofl:
Last edited: Feb 22, 2011 at 3:52 PM
<gouges his eyeballs out>
She/it is uglier than the "Black Widow".......
Whats the black widow?
I think I would face off with a shark with a pocket knife first before going against this one. LOL
I think I would face off with a shark with a pocket knife first before going against this one. LOL
Last edited: Feb 22, 2011 at 5:03 PM
Has HAPPY ever told you guy's about the time he was keelhauled by a drag boat going over a 100mph.
No, But I would like to hear this one. Sounds like a true story. :boat:
Common HAPPY tell us newbies it first hand.
COMMON HAPPY you have to tell us about the drag boat thing??????????????????????????????????:boat:
I got a pic fugler then this one, Ill post if I see the story!!!:veg:
azfish said:Whats the black widow?
I think I would face off with a shark with a pocket knife first before going against this one. LOL
The "black widow"....was one ugly transvestite/transgender (???) who used to work Calle 13, and other parts of town......there was a photo posted on here some time ago....haven't been able to find it.....heard she/it died...
Last edited: Feb 23, 2011 at 6:13 AM
I don't think we should judge folks by their appearance.
playaperro said:I don't think we should judge folks by their appearance.
You are right A.C., but in her case its O.K.
playaperro said:I don't think we should judge folks by their appearance.
I'm sure she's absolutely beautiful on the inside... but I'd never get close enough to find out!
I misinterpreted your statement Robert, "Since most stern drive inboards are converted car engines,"; my fault.
My intent was to warn the uninformed that even though automotive parts will bolt up to boat engines; it shouldn't be done unless one knows what they're doing. A friend attempted that with a v-6 heads (this guy had fished for years and did most of his own outdrive repair, but he found these rebuilt auto v-6 heads cheaper), but didn't notice the cooling jacket location difference in the heads.
I've seen many automotive parts bolted on boat engines. Sure it can be done, but as you probably know, the average Joe doesn't give it a second thought. Hey, its cheaper at Autozone right?
Happy, I was hoping you'd respond to this thread because I stated I do not know about drag boat engines.
So, what's your story Kenny mentioned?
My intent was to warn the uninformed that even though automotive parts will bolt up to boat engines; it shouldn't be done unless one knows what they're doing. A friend attempted that with a v-6 heads (this guy had fished for years and did most of his own outdrive repair, but he found these rebuilt auto v-6 heads cheaper), but didn't notice the cooling jacket location difference in the heads.
I've seen many automotive parts bolted on boat engines. Sure it can be done, but as you probably know, the average Joe doesn't give it a second thought. Hey, its cheaper at Autozone right?
Happy, I was hoping you'd respond to this thread because I stated I do not know about drag boat engines.
So, what's your story Kenny mentioned?
Last edited: Feb 23, 2011 at 9:43 AM
Yes your correct never judge a person by their first appearance !!!! How shallow.... One of you guys give her the SNIFF TEST and report back to us OK ! :popcorn: :fish: eeew
playaperro said:I don't think we should judge folks by their appearance.
You can have some fun with a photo like that. I used to have one, wallet size, of one of the most homely women ever. When at a bar chatting with a stranger I'd start to talk very sincerely about my girlfriend and how much I loved her, How I could not wait to get married. How nice she was to me. How hard it was to be apart as she lived in another state. etc. etc. A several minute build up. Then I'd pop the question "Do you want to see a photo of her?" Of course no one refused at that point. The fun part was watching the expression on the guys face when you show the photo. Sometimes I'd continue the story earnestly but most of the time I'd laugh after a minute or so.
Kenny said:Has HAPPY ever told you guy's about the time he was keelhauled by a drag boat going over a 100mph.
Its time you tell us what happened Kenny.
HAPPY said:```azfish, You're sick, ```what's the matter with you, ``` that is BAD, REAL BAD, ``` I'm going to have a g damn nightmare
``` The one Stuart posted is MUCH better,
``` But that did it for me, ``` no more nasty girl comments from me
Happy did you have this looker onboard and didnt see the drag boat coming?:cruisin::rofl:
Last edited: Feb 26, 2011 at 3:49 PM
Maybe you were looking at that tooth to see if it was going to fall out.:lol: