Heat exchanger and Oil cooler advice

[BruceK]

I have three bottles of Malbec ready for practice week.

THOSE ARE MINE!!

 

[Seastoke]

Cheers farsco I so want to post it , but he will call me a baaaarrrrsted again. But I only keep Malbec for Bruce so he may call it you.

 

[Seastoke]

THOSE ARE MINE!!

Offered this weekend but you turned me down.

 

[BruceK]

Cheers farsco I so want to post it , but he will call me a baaaarrrrsted again. But I only keep Malbec for Bruce so he may call it you.

You are. You gave my booze away. And even if Farsco gave you the vid, posting it is beyond your capabilities

 

[Portofino]

ooh erh , got a reply from the US manufacturer asking is it a personal water craft and and if not what kind of metals are in the HE ,s etc .So I have replied .....watch this space !

 

[Bandit]

Here is a series of photos I took some years ago from a 40 series engine probably Kad 43 to Kad 300, the blockage was minimal but while it was appart for other reasons you might as well clean it.
Two engines
Photo 1 Rydlyme in a windowsill planter untill it stops fizzing, remove repeat with new Rydlyme until clean etc, then remove wash out with fresh water to stop any Rydlyme sitting
Photo 2 Cleaned and uncleaned for a comparison. Then I took a new unit from the box and compared it, exactly the same colour.
Photo 3 Close up.

 

[Bandit]

Here is the worst case I have seen , the first time we worked on this boat and we collected and it over heated, surpringly?

The old anodes were loose in the cooler flow .

Like Volvo Paul we need a one stop definite fix, first time, without any collateral damage.

Say what you like if you cock up on a job you put it down to experience, if we or Volvo Paul do that we have to do many jobs to pay it off.
We will continue to use Rydlyme .

 

[Portofino]

The Question below I sent

[Rydlime marine - does it contain inhibitors to prevent the HCL etching the metal tube stacks ? If so how does t work .I realise the HCL dissolves the marine carbonates etc , but what about the metals micro surface integrity.]



The answer after they wanted to know which engines .

...........//...................

Okay great. Attached is both our marine specifications list and brochure for you to look over. To answer your questions, RYDLYME MARINE does have inhibitors in it that help prevent any etching, corrosion or erosion from the metals you will find in marine engines as well as any rubber and plastic. The only metal we recommend not using it on is zinc and magnesium and some lower grades of aluminum. Generally when using the product we do recommend a 50/50 dilution with water as well. I hope that helps! Let me know if you have any more questions.

Sincerely,
[ name removed by Porto ]
OEM AND PRIVATE LABEL SALES FOR RYDLYME
PRODUCT LINE MANAGER FOR RYDLYME MARINE
Apex Engineering Products Corp.
1241 Shoreline Dr.
Aurora, IL 60504
Toll Free (800) 451-6291
Cell (630) 945-6784
Fax (630) 820-8886

 

[BruceK]

Bandit I can understand your concerns. For the record I would not propose using either descaler in that manner. Please see further up the thread. Again, only the surface that sees raw water. I upend the unit and use it like a bucket, not dump it in a bucket. On the KAD you can do that with all the components. i.e. no solder, no aluminium, nothing but copper and brass.

 

[BruceK]

Okay great. Attached is both our marine specifications list and brochure for you to look over. To answer your questions, RYDLYME MARINE does have inhibitors in it that help prevent any etching, corrosion or erosion from the metals you will find in marine engines as well as any rubber and plastic. The only metal we recommend not using it on is zinc and magnesium and some lower grades of aluminum. Generally when using the product we do recommend a 50/50 dilution with water as well. I hope that helps! Let me know if you have any more questions.

Kudos for going to source, I suppose you want a humble pie video too. Yours for the asking

However, please note "we recommend not using it on is zinc and magnesium and some lower grades of aluminum" i.e. please do not dump your whole intercooler into a bucket of our stuff, the cooling fins are low grade aluminium with a high zinc alloy.

And a nod to VP, a mild jet wash of the fins, NOT a pressure wash in case somebody misreads that too.

 

[BruceK]

As it's sold in the EU I would love to get my hands on their CPL statement. Anyone know the licenced distributor for the UK/EU?

 

[Portofino]

Kudos for going to source, I suppose you want a humble pie video too. Yours for the asking

However, please note "we recommend not using it on is zinc and magnesium and some lower grades of aluminum" i.e. please do not dump your whole intercooler into a bucket of our stuff, the cooling fins are low grade aluminium with a high zinc alloy.

And a nod to VP, a mild jet wash of the fins, NOT a pressure wash in case somebody misreads that too.

No I will take a rain check on the pie vid ,
You are good guy Bruce , argue robustly and thx for not dropping in any derogatory personal comments or excuses like “ cant be bothered to read Porto s post “ and such like .

My wife’s from Llandudno , Penrhyn bay and her family and friends ......so we may meet in Conway one day over a pint on me .
Wife says there is a nice little French restaurant in Deganwy .. called .Paysanne she frequents when doing “ home “ visits .

Just had 8 from NW staying with us last 1/2 term ......so I have OD d on there nice ness .

 

[Bandit]

Ref Post 97 I am not sure what the Purple crud in the photos is after HCL Is

But in the words of Bob Dylan ...............You go your way I'll go mine!

 

[BruceK]

The purple is staining of the calcium build up by the temporary Anti-Freeze pumped through the raw water system after a fresh water flush when winterizing.

As for going separate ways I never once asked for a consensus. Just pointing out that if I used my methods your way then I could understand why you wouldn't. And if you understood my method perhaps you might understand why I do. C'est la vie. I have heard the argument that rydlyme is "better" I havent heard a decent argument as to why it's active ingredient HCL should not be used. Rodding it will score it just as badly if not worse than etching, by inference rodding is bad too.

 

[jon and michie]

Okay - I have only just had a brief look at this post.
Now as doubts have been cast about brick cleaner and rydlyme debate and the fact that I am about to clean my heat exchanger.
I have found this overhaul video where the chap used white wine vinegar and water and left overnight here at about 7min

Please please please can someone confirm that this is safe to do with vinegar???
Jon

 

[BruceK]

No I will take a rain check on the pie vid ,
You are good guy Bruce , argue robustly and thx for not dropping in any derogatory personal comments or excuses like “ cant be bothered to read Porto s post “ and such like .

My wife’s from Llandudno , Penrhyn bay and her family and friends ......so we may meet in Conway one day over a pint on me .
Wife says there is a nice little French restaurant in Deganwy .. called .Paysanne she frequents when doing “ home “ visits .

Just had 8 from NW staying with us last 1/2 term ......so I have OD d on there nice ness .

Penhryn Bay is 2 miles from me. Lovely little spot, I very nearly bought there. Ended up in a spot right in the middle of Pwyllicochran Woods. If you're ever down let us know. No Italian boats in the fleet but we can throw a good party

 

[BruceK]

Okay - I have only just had a brief look at this post.
Now as doubts have been cast about brick cleaner and rydlyme debate and the fact that I am about to clean my heat exchanger.
I have found this overhaul video where the chap used white wine vinegar and water and left overnight here at about 7min

Please please please can someone confirm that this is safe to do with vinegar???
Jon

You know what Jon, nobody is going to thank you for using anything but Rhydlyme, it has cult status. But if you're asking what effect distilled white vinegar will have on copper /brass the answer is it will only react with copper oxides. Try dropping a penny into white vinegar overnight. You'll see for yourself.

(tongue in cheek) Beware though, as the superficial copper oxides will have pre etched the polished surface and vinegar will expose them and without the magic muti of Rhydlyme you cant put those etchings back and restore as new.
Now as for the solder. For christsakes dont let vinegar anywhere near any solder because the legions will cry foul. You will create lead acetate and severely weaken the stack. Seriously, evil stuff vinegar. Never give a pregnant lady balsamic vinegar. It's full of lead. Dont believe. You're not alone. Nobody does. Good luck fella.

 

[BruceK]

So everyday is a school day and today we learnt Rhydlyme has a magic inhibitor. I hate magic and as I pointed out to Farsco Rhydlyme is nothing more than HCL in solution with a touch of dye added.
So what is the importance of the dye and so I did some research on dyes and corrosive inhibitors of copper and hydrochloric acid in aqueous solution to keep my bottle of Malbec company.
Well it turns out, and its a school day, that many organic dyes including Azine, oxazine, and thiazine dyes will bind to the metal and inhibit corrosion.
So our Rydlyme is brick acid with dye.
But what dye is best for copper based alloys in aqueous HCL solution? - Basic Red 46
For aluminium - methylene blue

Mix the two and what colour do you get? I think the plot thickens.

I shall now grab a bucket of brick acid and order these two dyes and a couple other likely candidates and have a Fred in his Shed moment. If I am successful I shall open shop and undercut Rhydlyme by half and still hopefully make enough shekels to buy a better boat than Roy's!
Early investors welcome.

 

[jon and michie]

Right to make things easier - I have 2 ideas in mind.
1 get rydlyme delivered on Tuesday there is a place in Sheffield not far from me 5ltr for £50 and clean the heat exchanger myself.
2 call the local heat exchanger specialist and get them to clean it any problems irs on their head.
And I know which one is swaying me
Jon

 

[volvopaul]

Here is the worst case I have seen , the first time we worked on this boat and we collected and it over heated, surpringly?

The old anodes were loose in the cooler flow .

Like Volvo Paul we need a one stop definite fix, first time, without any collateral damage.

Say what you like if you cock up on a job you put it down to experience, if we or Volvo Paul do that we have to do many jobs to pay it off.
We will continue to use Rydlyme .

Oh a typical D12 gearbox cooler.