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[ Active Members: 4 | Guests: 54 ]  [ Total: 58 ]  [ Newest Member: Robert Lamkin ]
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 Engines, Electric, Plumbing, etc.
 Antifreeze change.
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Author Previous Topic: Mercruiser 8.1L popping above 3400rpms Topic Next Topic: bilge pump float switches  

Gregory S

RO# 2620



Posted - Oct 22 2017 :  11:12:02  Show Profile  Reply with Quote
How often should antifreeze be changed in FWC engines?

Edited by - Gregory S on Oct 22 2017 12:00:30

Homeport: Norfolk, Va

ranger42c

RO# 32710

Posted - Oct 23 2017 :  06:42:25  Show Profile  Reply with Quote
Manufacturer's recommendation? FWIW, in our case, it's an item called out in the service manual...

-Chris


Selby Bay, South River

Homeport: Londontowne, MD Go to Top of Page

MichaelNJ

RO# 14778

Posted - Oct 23 2017 :  09:13:09  Show Profile  Reply with Quote
General guideline is five years but I used prestone extended life in 2012. My mechanic checked it yesterday with a refractometer and it's still good to -40

2006 Meridian 341 Sedan Bridge
Obsession

Newport Yacht Club, Jersey City, NJ

Flotilla Commander USCG Auxiliary Flotilla 42 1SR

Homeport: Jersey City, NJ Go to Top of Page

Gregory S

RO# 2620



Posted - Oct 23 2017 :  10:20:09  Show Profile  Reply with Quote
That's why I asked Michael. Mine is also 5 years old, still looks and smells fine and when I checked it, it registers freeze protection to minus 34 degrees F. Unless someone points me in another direction, I can't see discarding perfectly good antifreeze. Do any of you change your car antifreeze every five years?


Homeport: Norfolk, Va Go to Top of Page

MichaelNJ

RO# 14778

Posted - Oct 23 2017 :  14:16:12  Show Profile  Reply with Quote
I think that's where the extended life product comes into play. I was once told that antifreeze becomes acidic after a period of time. So it may still offer freeze protection but lose the anti-corrosive properties. But according to Prestone, the Extended Life product should be flushed every five years. As far as my cars, I follow the car manufacturer's maintenance schedule for everything. Of course Prestone wants you to change it more frequently.

2006 Meridian 341 Sedan Bridge
Obsession

Newport Yacht Club, Jersey City, NJ

Flotilla Commander USCG Auxiliary Flotilla 42 1SR

Homeport: Jersey City, NJ Go to Top of Page

Anchor Management

RO# 32420



Posted - Oct 23 2017 :  15:56:57  Show Profile  Reply with Quote
I use the test strips. They tell you exactly the condition of your AF.

-------------------------
2006 52 Searay Sedan Bridge

Homeport: Haverstraw, NY Go to Top of Page

MichaelNJ

RO# 14778

Posted - Oct 23 2017 :  16:17:28  Show Profile  Reply with Quote
What does is tell you aside from freeze point?

2006 Meridian 341 Sedan Bridge
Obsession

Newport Yacht Club, Jersey City, NJ

Flotilla Commander USCG Auxiliary Flotilla 42 1SR

Homeport: Jersey City, NJ Go to Top of Page

Gregory S

RO# 2620



Posted - Oct 23 2017 :  16:50:14  Show Profile  Reply with Quote
Test strips are for ph. Base is good, acid is bad. Different then checking freeze or boil point.


Homeport: Norfolk, Va Go to Top of Page

pdecat

RO# 842



Posted - Oct 24 2017 :  09:47:35  Show Profile  Reply with Quote
the anti corrosion additives in Af need renewal after a certain amount of time. The many different materials in today's engines may set up galvanic couples once the AF protection diminishes. Perhaps that can be tested but I don't know. MO use the same type AF you always used. In the past some newer long life AF didn't mix well with old style and was more prone to leaking.

Bruce



Homeport: Gulf Coast FL Go to Top of Page

risingson

RO# 29910

Posted - Oct 24 2017 :  14:04:36  Show Profile  Reply with Quote
Hank
What brand test strips do you use and for what type of
antifreeze? ELC caterpillar?
Michael



Homeport: Cos Cob, CT Go to Top of Page

Sandy

RO# 1159

Posted - Oct 24 2017 :  14:58:19  Show Profile  Reply with Quote
quote:
Originally posted by Gregory S

Test strips are for ph. Base is good,...





Unless SW is mixing in when when the engine cools in case of pinhole leak at the h.exchanger.


I just test for freeze boil protection and still have the A/F replaced every couple years at yard layup in spite of it's being Dexcool. Likely quite excessive but not a big deal.

But, hmmmm, have never replaced the A/F yet in my 2011 SUV. Gofigger.


Sandy

Homeport: The Vineyard Go to Top of Page

Gregory S

RO# 2620



Posted - Oct 25 2017 :  09:16:48  Show Profile  Reply with Quote
Yeah,, if your HE is leaking , you have bigger problems than wondering if it's time to change the antifreeze.


Homeport: Norfolk, Va Go to Top of Page

walterv

RO# 12640



Posted - Oct 25 2017 :  09:27:00  Show Profile  Reply with Quote
How do you check for freezing and boil points?

And always remember, life is not measured by the number of breaths we take, but by those moments that take our breath away.

George Carlin

Homeport: Go to Top of Page

MichaelNJ

RO# 14778

Posted - Oct 25 2017 :  11:09:24  Show Profile  Reply with Quote
My mechanic used a refractometer. It measures burst point. I wouldn't worry about boiling point.

2006 Meridian 341 Sedan Bridge
Obsession

Newport Yacht Club, Jersey City, NJ

Flotilla Commander USCG Auxiliary Flotilla 42 1SR

Homeport: Jersey City, NJ Go to Top of Page

Brite Idea

RO# 12714

Posted - Oct 25 2017 :  15:25:28  Show Profile  Reply with Quote
If it's due change it just like oil changes or any other maintenance it's cheap insurance. I change mine every five years with a flush and new thermostats also.



Edited by - Brite Idea on Oct 25 2017 15:26:30

Homeport: Copiague, N.Y. Go to Top of Page

Gregory S

RO# 2620



Posted - Oct 25 2017 :  20:34:28  Show Profile  Reply with Quote
Walter, you can buy an antifreeze tester at Autozone etc. one side shows you freeze point and the other side gives you boil point. Squeeze the bulb, suck up a sample to fill the chamber and the arrow points to the result.


Edited by - Gregory S on Oct 25 2017 20:35:44

Homeport: Norfolk, Va Go to Top of Page

Gregory S

RO# 2620



Posted - Oct 25 2017 :  20:36:36  Show Profile  Reply with Quote
Walter, you can buy an antifreeze tester at Autozone etc. one side shows you freeze point and the other side gives you boil point.


Homeport: Norfolk, Va Go to Top of Page

walterv

RO# 12640



Posted - Oct 26 2017 :  15:48:40  Show Profile  Reply with Quote
thanks

And always remember, life is not measured by the number of breaths we take, but by those moments that take our breath away.

George Carlin

Homeport: Go to Top of Page

TJM

RO# 2909

Posted - Nov 14 2017 :  09:55:00  Show Profile  Reply with Quote
Boats need SCA, Supplementary Coolant Additives for corrosion protection, lubricity etc...

Prestone makes an additive that lubricates but I replace mine every 5 yrs.
As others have said, pH should be lower than 7. It is also a good time to change your thermostat.

FWIW, your cars do not run at 75% of WOT for hours at a time like boats do. The potential of reduced coolant properties while at elevated temperatures around seawater gives me the shakes.


Tom
41' President

Homeport: Essex, Ct Go to Top of Page

Gregory S

RO# 2620



Posted - Nov 14 2017 :  12:27:05  Show Profile  Reply with Quote
Lower than 7-- that would be acidic?????


Homeport: Norfolk, Va Go to Top of Page

GeeBee

RO# 385



Posted - Nov 18 2017 :  22:41:33  Show Profile  Reply with Quote
SCA's are not required in a gas engine, only diesel.





"The trouble with socialism is that you eventually run out of other people's money."... Margaret Thatcher

Homeport: Lake Lanier, GA Go to Top of Page

Gregory S

RO# 2620



Posted - Nov 20 2017 :  10:04:15  Show Profile  Reply with Quote
TJM--water has a pH of 7, antifreeze undiluted is pH of 10.5. When diluted 50/50 should be about 8.75 which is basic, anything less than 7 would be acidic and that's bad for your cooling system.
Ranger 42 C--WRT the owners manual, I believe mine calls for changing the transmission fluid yearly? I don't know anybody that does that.



Edited by - Gregory S on Nov 20 2017 10:05:47

Homeport: Norfolk, Va Go to Top of Page

ranger42c

RO# 32710

Posted - Nov 21 2017 :  06:38:31  Show Profile  Reply with Quote
quote:
Originally posted by Gregory S


Ranger 42 C--WRT the owners manual, I believe mine calls for changing the transmission fluid yearly? I don't know anybody that does that.



Yeah, ours does, too... and we do. Always looks clean, but if necessary I can tell the maker that, yes, I change it annually...

Ditto our anti-freeze regime; we do what the manual specifies, including the periodic flush. Ditto mostly 'cause that then shows up in our maintenance logs... if it were to become necessary.

-Chris


Selby Bay, South River

Homeport: Londontowne, MD Go to Top of Page

Gregory S

RO# 2620



Posted - Nov 21 2017 :  10:02:59  Show Profile  Reply with Quote
I'm way out of warranty as I expect you are too, so, my preventive maintenance is based upon what is logical for my systems. That's why I asked the queation in the first place.


Homeport: Norfolk, Va Go to Top of Page

ranger42c

RO# 32710

Posted - Nov 23 2017 :  07:06:40  Show Profile  Reply with Quote
Yeah we are, too... A couple dock neighbors have had major engine problems, way past warranty, and were able to get some insurance help... possibly 'cause they could show compliance with manufacturer-recommended maintenance in their logs, I think. Guessing a bit, though...

-Chris


Selby Bay, South River

Homeport: Londontowne, MD Go to Top of Page

Gregory S

RO# 2620



Posted - Nov 23 2017 :  08:51:10  Show Profile  Reply with Quote
yeah, guessing a bit. There doesn't seem to be any rhyme or reason to insurance payoffs.


Homeport: Norfolk, Va Go to Top of Page

JVM225

RO# 28365

Posted - Nov 23 2017 :  10:52:33  Show Profile  Reply with Quote
quote:
Originally posted by ranger42c

Yeah we are, too... A couple dock neighbors have had major engine problems, way past warranty, and were able to get some insurance help... possibly 'cause they could show compliance with manufacturer-recommended maintenance in their logs, I think. Guessing a bit, though...

-Chris




What kind of insurance help? Was it for engine damage due to hitting something in the water or something, running aground, or coverage for general engine failure?
I wouldn’t mind having some additional coverage.


2002 Sea Ray 410 Sundancer
95 Eastern 22'
05 Maxum 18' Bowrider
C6 Corvette Convertible
68 GTO


Homeport: Farmingdale NY Go to Top of Page

ranger42c

RO# 32710

Posted - Nov 24 2017 :  08:50:49  Show Profile  Reply with Quote
quote:
Originally posted by JVM225



What kind of insurance help? Was it for engine damage due to hitting something in the water or something, running aground, or coverage for general engine failure?
I wouldn’t mind having some additional coverage.




Sorry, don't really know many details... just that the engine problems weren't from hitting anything, and they were a bit relieved they didn't have to pay the whole tab for a rebuild.

-Chris




Selby Bay, South River

Edited by - ranger42c on Nov 24 2017 08:52:02

Homeport: Londontowne, MD Go to Top of Page

Sandy

RO# 1159

Posted - Nov 24 2017 :  18:42:41  Show Profile  Reply with Quote
quote:
Originally posted by ranger42c

quote:
Originally posted by JVM225



What kind of insurance help? Was it for engine damage due to hitting something in the water or something, running aground, or coverage for general engine failure?
I wouldn’t mind having some additional coverage.





Sorry, don't really know many details... just that the engine problems weren't from hitting anything, and they were a bit relieved they didn't have to pay the whole tab for a rebuild.

-Chris







Wonder which engines those were, and whether the engines might have damaged by what was not originally engine-related?


Sandy

Homeport: The Vineyard Go to Top of Page

ranger42c

RO# 32710

Posted - Nov 25 2017 :  06:18:13  Show Profile  Reply with Quote
Don't know models. One was Volvo something. Two others were Cat.

-Chris


Selby Bay, South River

Homeport: Londontowne, MD Go to Top of Page
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