Winterising while on the hard stand

[Falcoron]

Hello good people, would some kind soul walk me through the steps to winterise my inboard (2 x Hino WO6D) diesel engines please?
She is on the hard stand while I'm restoring her, so no water tanks, calorifiers or heads are fitted or connected yet so only engines to winterise.

I have the raw water inlet cocks closed and the weed filters all cleaned.

Recommendations on antifreeze and strength too if possible.

Boat is in marina on hard in Enniskillen area
thanks

 

[spannerman]

What you need to do is take the cover off the weed filter and set up a hose pipe with a tap/valve so you can adjust the flowrate and get someone on the helm to start the engine while you fill the filter housing. The engine should pull the water through and out of the exhaust, after flushing for a few minutes then turn off hose and pour in a 50/50 antifreeze and water mix from two buckets you mixed up beforehand until you see it coming out off the exhaust, turn off, job done. I am not sure how big the various coolers are on your engines but 2 buckets is enough for a 4.2 liter 6 cyl Mercruiser, maybe have 3 buckets ready for the first one and see how much you use as you may have exhaust mufflers which will hold a few liters, leave the inlets closed or you will lose the antifreeze overboard instead if it going into the engine, when you are done open the inlets so any seawater in the pipe to the filter can drain out.

 

[Falcoron]

Good man thanks a million.

Antifreeze recommendations?

 

[spannerman]

Any decent brand from an autofactors will do the job.

 

[ChromeDome]

Exactly how I've done it for the past 5 decades. This method covers all relevant components and doesn't require any dismantling (with potential leaks to follow)

Since the cost doesn't differ a lot I'm using Ethylene glycol (specified for my engines) based Longlife anti-freeze.
Modern anti-freeze is classified differently with a bunch of additives and properties your engine doesn't require.

Workshop Manual for your Hino: HINO MOTORS W06D-TI WORKSHOP MANUAL Pdf Download | ManualsLib

 

[stelican]

Don,'t forget to check to strength of antifreeze in the sealed cooling systems

 

[ChromeDome]

Don,'t forget to check to strength of antifreeze in the sealed cooling systems

As mentioned elsewhere I start by changing engine anti freeze and re-use the drained to pour into the strainers.

Always fill 50:50 mix into the engines, which by the Long-Life product I use gives protection to -36 C.

 

[stelican]

As mentioned elsewhere I start by changing engine anti freeze and re-use the drained to pour into the strainers.

Always fill 50:50 mix into the engines, which by the Long-Life product I use gives protection to -36 C.

Very sorry I didn't see that, But I was responding to the OP not you.

 

[ChromeDome]

No problem, I too responded to the OP.

 

[Falcoron]

Thanks guys really helpful

 

[spannerman]

Very smart idea- reusing the engine antifreeze!

 

[Falcoron]

Don,'t forget to check to strength of antifreeze in the sealed cooling systems

yes i had actually forgot about that so have now bought the little suction gauge to test it.
Thanks for the reminder.

 

[Falcoron]

Exactly how I've done it for the past 5 decades. This method covers all relevant components and doesn't require any dismantling (with potential leaks to follow)

Since the cost doesn't differ a lot I'm using Ethylene glycol (specified for my engines) based Longlife anti-freeze.
Modern anti-freeze is classified differently with a bunch of additives and properties your engine doesn't require.

Workshop Manual for your Hino: HINO MOTORS W06D-TI WORKSHOP MANUAL Pdf Download | ManualsLib

SUPERB thanks mate