Rydlyme flushing Kad44 help

[nfluester]

I want to flush the engines through with rydlyme I understand where to connect into the sea water pump outlet but can someone please helo confirm which of these 2 pipe I use for the other end of the circuit

 

[Mr Googler]

Left one ?

 

[nfluester]

Left one ?

Thanks FARSCO

So as I understand it I need to mix it 50:50 5 litres of each to make about 10 litres in total

 

[jrudge]

I don’t know your engine but on the d12 the heat exchange has 2 anodes. Remove and screw in a barbed adapter. Simply have it circulating in the bottom and out the top. The heat exchanger is the main thing you are trying to clear

 

[nfluester]

I don’t know your engine but on the d12 the heat exchange has 2 anodes. Remove and screw in a barbed adapter. Simply have it circulating in the bottom and out the top. The heat exchanger is the main thing you are trying to clear

Thanks for that from what I understand there are no anodes on the engine of the Kad44.

 

[Mr Googler]

Thanks FARSCO

So as I understand it I need to mix it 50:50 5 litres of each to make about 10 litres in total

probably not enough. I guessed that the normal volume is 10l so in effect, if you just flushed with fresh first then added your 10l 50:50 mix, it will dilute to 25:75. I used 10 litres neat.

flush in reverse too. Any big bits will then come out hopefully. Definitely have heat exchanger end cap seals on standby...both mine leaked straight away after flushing!

Clean!?

 

[nfluester]

Finally got round to rydlyme flushing our engines thought I'd create a YouTube how to video which will hopefully help someone else out

Enjoy

Neil

 

[Mr Googler]

great video. I’ve got same fleece too! Man of great taste ?

 

[nfluester]

Love weird fish jumpers and fleeces ??

 

[mr mischief]

Very helpful video , where did you get the rydlyme and the hose adaptors from

 

[mcanderson]

Nice video. Thanks for making it.

 

[DavidJ]

Great video
its something I’ve been meaning to do and have saved bits and pieces of information from this forum but you have captured it all in one
Thanks

 

[LittleSister]

Very helpful video , where did you get the rydlyme and the hose adaptors from

Hose reducing adapters here (other suppliers available):
Double Ended Hose Connector Fittings : Straight and Plastic

Rydlyme here (ditto):
Rydlyme Marine Biodegradable Marine Descaler 5 Litre

 

[nfluester]

RKMARINE for rydlyme £46 for 5 litres by far the cheapest around.

Reducers off ebay but the ones listed at ASAP above look about the same.

So glad everyone found the video useful I am planning on doing a lot more on the channel and whilst I'm not a mechanic I like to understand the basics of how our engines works and how to maintain. ?

 

[DavidJ]

Just ordered this for £15
Does it look ok for the job?
Seaflo 01 Series Bilge Pump 1100GPH Submersible Water Pump Yacht Seaflo 01 Series Bilge Pump 1100GPH Submersible Water Pump Yacht: Amazon.co.uk: Sports & Outdoors

 

[alt]

After taking my elbow off today for preventative maintenance (all good), i'm considering a raw water flush.

I presume there are still advantages to this, eventhough i'm on fresh water? (There's mention of limescale)

Is there an alternative to Rydlyme? I can have the boat taken out of the water (we have a trolley and tractor) so not concerned about marine life.

And what's this about the heat exchanger end caps leaking afterwards?! Is this common?!

 

[nfluester]

Ours's is a river boat though i believe it was on the sea at one point in its 20 year life, whilst we didn't have any issues with over heating we have only had the boat for just over a year and not knowing much about it's service history i wanted to do it as part of the general engine house keeping and to bring it up to a baseline where i can work from in the future.

i dont think ours were excessively blocked up but in the video you can clearly hear a difference in tone of the pump from the beginning to after 4 hours so there is obviously increased flow now.

there is stuff called barnacle buster which is meant to do the same job and essentially it's an acid so "people" have talked about diluting brick cleaner but i dont like the idea of that going round my heat exchanger, oil cooler and intercooler.

if you were to pull the boat out you could run a longer circuit with some muffs on outdrives (if you have outdrives and then let it run out the exhaust into a bucket thus cleaning more of the system but as stated im not an expert so not sure how beneficial this could be.

if you want to do the job really properly then take the coolers out and inspect them and then rod the individual pipes through but thats a bit more involved and im not ready for that level of dismantling on 2 engines.

touch wood our end caps are not leaking though we are only pootling up and down the Thames at 4 knots at the moment once they open teddington look we can go out past the Thames barrier, open the taps up and check properly

 

[nfluester]

Just ordered this for £15
Does it look ok for the job?
Seaflo 01 Series Bilge Pump 1100GPH Submersible Water Pump Yacht Seaflo 01 Series Bilge Pump 1100GPH Submersible Water Pump Yacht: Amazon.co.uk: Sports & Outdoors

that pump looks fine has a bigger outlet pipe and higher flow than the one i used but thats not a problem, you'll just need a short length of 1-1/8" pipeand you wont need a reducer as thats about the same size as the pipe on the elbow and strainer so you will probably need a piece of 28mm tube and some jubilee clips as coupler

 

[Mr Googler]

no idea if leaking afterwards is common or not. The Rydlyme removes calcification so makes sense that in someways....calcification can “seal” things up here and there

Is there an alternative to Rydlyme? I can have the boat taken out of the water (we have a trolley and tractor) so not concerned about marine life.

Heat exchanger and Oil cooler advice

read this Alt ?

 

[DavidJ]

that pump looks fine has a bigger outlet pipe and higher flow than the one i used but thats not a problem, you'll just need a short length of 1-1/8" pipeand you wont need a reducer as thats about the same size as the pipe on the elbow and strainer so you will probably need a piece of 28mm tube and some jubilee clips as coupler

Thanks
I was just about to order a couple of reducers so that’s handy and saves me a tenner.