I have a Sendur heat exchanger (stainless steel) on my Landfall 38 with a pin hole leak at the sea water outlet as you mentioned. Today I dropped it off at a radiator heat exchanger shop (NS radiator Heat Exchanger). They will pressure check it and hopefully make repairs in about a weeks
Delamirande via CnC-List
Sent: January 15, 2021 10:03
To: Stus-List
Cc: Joel Delamirande
Subject: Stus-List Re: Acid flushing heat exchanger?
Is this for only Diesel engines and in sea water?
On Wed, Jan 13, 2021 at 9:33 AM Della Barba, Joe via CnC-List
mailto:cnc-list@cnc-list.com>>
Is this for only Diesel engines and in sea water?
On Wed, Jan 13, 2021 at 9:33 AM Della Barba, Joe via CnC-List <
cnc-list@cnc-list.com> wrote:
> If you take the end caps off the heat exchanger, you can see the tubes the
> raw water flows through. Flushing and replacing the coolant does not touc
Had a new heat exchanger on my 3HM installed 2.5 years ago
After over heat alarm went off on the maiden voyage. After noticing some extra
smoke last few times out, I lost all water flow, sailed back into to slip.
Turns out now Elbow completely blocked with crap few years latrer. Did not
chan
Thanks everyone for the insights!
Bruce Whitmore
1994 C&C 37/40+
"Astralis"
Madeira Beach, FL
(847) 404-5092
On Wed, Jan 13, 2021, 12:49 PM Dennis C. via CnC-List
wrote:
> Here's a good article on heat exchanger maintenance.
>
> https://pbase.com/mainecruising/heat_exchanger
>
> Touche' has a U
Here's a good article on heat exchanger maintenance.
https://pbase.com/mainecruising/heat_exchanger
Touche' has a Universal 25XPB diesel. I remove the end caps every 2-3
years, flush and inspect. I have observed the remnants of zincs as shown
on the above site.
If necessary I would "rod out" t
My Universal M4-30 has a tube-in-shell heat exchanger and I keep 1/8" wooden
dowels in my spare kits to rod out the tubes occasionally. IIRC use a 9/16"
box wrench to remove the single bolt holding each end cover and push the dowel
through to the other side. There is a zinc screwed into one en
Many of our boats from the early 80's have aftermarket heat exchangers from
a company called Sen-Dure. While most have the removable end caps (with
O-rings) that have been mentioned previously, the heat exchangers are VERY
expensive to replace ( I was quote approximately $600-700 USD). While m
It’s the raw water side, I have done this by disconnecting each end of the heat
exchanger (raw water cooling) and taking a bilge pump and house and cycling
barnacle buster through the exchanger. I don’t know if there would be a need
to do this on the freshwater side.
Simplest and most complet
From: Edd Schillay via CnC-List
Sent: Wednesday, January 13, 2021, 10:53 a.m.
To: Stus-List
Cc: Edd Schillay
Subject: Stus-List Re: Acid flushing heat exchanger?
Bruce,
There are a few marine Diesel engine maintenance books out there, and your
engine manual may have enough info on that alone.
To
Bruce,
There are a few marine Diesel engine maintenance books out there, and your
engine manual may have enough info on that alone.
To check the tube stack, you’ll need to remove the end caps and slide it out.
Do a check for corrosion and clean. If you see corrosion or holes, replace it
($200
I've heard of using rifle cleaning kits or wood dowels too.
Joel
On Wed, Jan 13, 2021 at 9:33 AM Della Barba, Joe via CnC-List <
cnc-list@cnc-list.com> wrote:
> If you take the end caps off the heat exchanger, you can see the tubes the
> raw water flows through. Flushing and replacing the coolant
If you take the end caps off the heat exchanger, you can see the tubes the raw
water flows through. Flushing and replacing the coolant does not touch the
inside of these tubes. To truly clean out the heat exchanger you need to remove
these caps. I stuck mine in a tub of hot water and detergent,
Hi Edd,
I've owned the boat for 4 years, have replaced the coolant twice, and have
checked the mixing elbow a couple times. I have never checked/cleaned the
heat exchanger. I'm not quite sure what you mean by the tube stack?
Is there a good source of information as to the proper maintenance
pr
Bruce,
How long has it been since you last cleaned the exchanger, checked the tube
stack and replaced the coolant?
It should be done at least once every five years, including replacing the
o-rings.
Barnacle Buster is a good product, especially down here, but not to be used
instead of normal
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