correct procedure to drain and flush radiator on D1 Deisel???

[**Discovery300Tdi**]

hello all,

just wondering if there is a exact procedure to flush and fill a radiator in a D1 deisel???? i am waiting for my rave cd to come in the mail but have to flush it later on today. can not find drain plug for radiator???

cheers simon

[rangieman]

hello all,

just wondering if there is a exact procedure to flush and fill a radiator in a D1 deisel???? i am waiting for my rave cd to come in the mail but have to flush it later on today. can not find drain plug for radiator???

cheers simon

Mate if you supplyed the beers and let me roll my swag somewhere i would have come over and giving you a hand
Or are you just trying to get your post count up

[**Discovery300Tdi**]

Mate if you supplyed the beers and let me roll my swag somewhere i would have come over and giving you a hand
Or are you just trying to get your post count up

Nahhhhh just trying to fix my truck thats all.

[PAT303]

Take it to a rad specialist and get it done properly.The flushing agent you buy in the shop and a garden hose are a waste of time.The cooling system in your vehicle is critical and should only be done to the highest level by a specialist. Pat

[steveG]

Hi Simon,
I took mine out and it cost me $100 to get it rodded/tested- well worth the money IMHO.
Apparently the radiator tubes are very fine and run horizontally which makes them block easily. The coolant flows across the top half of the core then back across the bottom half - which means that if you had a quarter of your tubes blocked, but they all happened to be in one half, then the flow is effectively 50% blocked.

Let me know if you want the name of the guy I use in Geelong. I could probably pick up the rad. from you and drop off to him if that helps.

While you've got the radiator out give the intercooler a flush too. I found that kerosene worked best for cleaning mine. Just make sure all the kero is gone before you refit it otherwise the engine can run on the fumes. I left mine out in the sun for a few hours to make sure it was all gone.

Steve

[Blknight.aus]

Im with the pulling it out and having it professionally done.

[**Discovery300Tdi**]

Hi Simon,
I took mine out and it cost me $100 to get it rodded/tested- well worth the money IMHO.
Apparently the radiator tubes are very fine and run horizontally which makes them block easily. The coolant flows across the top half of the core then back across the bottom half - which means that if you had a quarter of your tubes blocked, but they all happened to be in one half, then the flow is effectively 50% blocked.

Let me know if you want the name of the guy I use in Geelong. I could probably pick up the rad. from you and drop off to him if that helps.

While you've got the radiator out give the intercooler a flush too. I found that kerosene worked best for cleaning mine. Just make sure all the kero is gone before you refit it otherwise the engine can run on the fumes. I left mine out in the sun for a few hours to make sure it was all gone.

Steve

g'day buddy,

thank you for your offer on the rad, i will keep it in mind. might prob do it after i get back on my feet. thanks for the info as well, helps alot.

cheers simon

[steveG]

No problem Simon - the offer's there if/when you want.
My temp gauge sits dead center all the time once its warmed up, so if yours is more up the higher end keep a good eye on it on hot days or under load. You don't want to cook a good engine.

You probably already know this but if your cooling system is a bit dodgy and temp starts to rise uncomfortably (eg uphill on hot day) then you can often keep it under control by:
- turning off the A/C
- wind down the windows
- turn on the heater
- set the fan to high.

Its surprising how much it helps to keep the water temp under control as the heater core acts like a mini radiator, and turning off the A/C unloads the motor and stops the A/C condenser pre-heating the air before it goes through the radiator.

NOTE: It only helps keep temperatures under control, so if the gauge is climbing rapidly don't stuff around, just pull over before you cook it.

Steve

[steveG]

BTW - a good trick to drain the coolant is to get a couple of metres of approx 4mm clear plastic hose and feed it right down thru coolant tank into the hose below.
Stick your finger over the end and pull it out a bit and you should be able to get it siphoning into a bucket without sucking on the hose. Push it back down as far as you can once its draining.
Takes a little while to drain but much less messy than pulling the lower hose off the radiator.

Steve