As Dave said re our old cast iron engines, it doesn't hurt to drain them
occasionally just to clean the deposits out of the block and radiator. Just
don't break the valve...
Regards,
Richard C
> On Nov 5, 2015, at 10:59, Herbert Miller <hgmiller3@qwest.net> wrote:
>
> I hate antifreeze because it is so slimy. With a fresh rebuild, on the first
> start up, I always use plane water with an additive I get at my parts
> store. The additive is a water pump lub and corrosion inhibitor. When I am
> satisfied that the cooling system is secure I drain the system, saving the
> coolant for the next engine, and fill with the proper amount of antifreeze.
> Seems to me that half a bottle of this additive would renew the existing
> antifreeze.
> Herb Miller
>
> -----Original Message-----
> From: Healeys [mailto:healeys-bounces@autox.team.net] On Behalf Of Richard
> Collins
> Sent: Thursday, November 5, 2015 10:05 AM
> To: David Porter
> Cc: Healeys@autox.team.net
> Subject: Re: [Healeys] Coolant change
>
> I don't disagree re boat engines which have more highly complex cooling
> systems as both the fresh and salt water systems require attendance far more
> frequently than cars. The freshwater side is less problematic than the
> saltwater side but there is no "best by" date to refresh or clean the myriad
> of pipes, tubes, pumps, filters or liquids found on boats/yachts/ships
> cooling systems. The age of the fresh water cooling liquid is basically a
> non issue, just like with cars.
> Having said that I did 2 yacht deliveries recently, one a twin engine Cat
> powered sport fisherman and the other a 55 foot sailboat powered by a single
> Perkins (both diesel). Both had cooling issues, not coolant related. As with
> our cars (and my Healey) it's the hardware causing the problem, not the
> liquid.
> No argument with you, just my experience...
>
>
> Regards,
> Richard C
>
>
>> On Nov 5, 2015, at 09:41, David Porter <frogeye@porterscustom.com> wrote:
>>
>> Richard,
>> not to sound argumentative, but the seawater systems/heat exchangers
>> or what ever name are vastly different systems, but the engines are
>> still subject to the same conditions as our cars and preventative
>> maintenance should be a higher priority in off shore capable boats.
>> Those boats using fresh water systems are highly prone to coolant
>> system issues too. Mostly due to different temps across the heads, but
>> also lack of pump lubrication... IMHO dp
>>
>>> On 11/5/2015 8:05 AM, Richard Collins wrote:
>>> I am running the same
>>> 50/50 mix in my BN7 but am using distilled water in lieu of tap water. It
> hasn't been drained in a number of years except to fix a leak in the
> original still used radiator several years ago.
>>> FYI my water cooled Porsches have coolant more than 5 years old and no
> issue. I have captained large motor yachts and the multi gallonage coolant
> in their engines are seldom drained.
>>> So age is not the issue IMO
>>>
>>>
>>> Regards,
>>> Richard Of Ky
>>> BN7 #440
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html Suggested annual donation
> $12.75
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
>
> Healeys@autox.team.net
> http://autox.team.net/mailman/listinfo/healeys
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/hgmiller3@qwest.net
>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2016.0.7163 / Virus Database: 4457/10952 - Release Date: 11/05/15
>
_______________________________________________
Archive: http://www.team.net/archive
Healeys@autox.team.net
http://autox.team.net/mailman/listinfo/healeys
|