Is there an offical method for bleeding?

macafee2 · 18th December 2018, 20:58

Is there an officel method for bleeding a diesel?

Apart from squeezing top hose and removing bleed screw by battery box
is there anything else?

Having fitted and removed an FBH I'm sure I've lost more coolant then I've put back.

Can watch temp gauge get to 9'oclock and then drop as I assume inline stat then opens and then temp gauge creeps back up again to 9 o'clock.

macafee2

trikey · 18th December 2018, 21:00

Remove the bleed screw, ensure the expansion tank is half full then blow down the hole in the expansion tank until all the air is expelled from the bleed hole.

marinabrian · 19th December 2018, 02:53

Quote:

Originally Posted by trikey

Remove the bleed screw, ensure the expansion tank is half full then blow down the hole in the expansion tank until all the air is expelled from the bleed hole.

I hope you realise that statement will incur the wrath of the one who always quotes as follows

"you didn't refill and bleed the cooling system according to the MGR recommended procedure".

Don't say I didn't warn you

Now back to the naughty step for you my lad

Brian

P.S. Ian, Trikey's method works fine in terms of what is lost when fitting a FBH

Mike Noc · 19th December 2018, 07:39

Quote:

Originally Posted by macafee2

Is there an officel method for bleeding a diesel?

Apart from squeezing top hose and removing bleed screw by battery box
is there anything else?

Having fitted and removed an FBH I'm sure I've lost more coolant then I've put back.

Can watch temp gauge get to 9'oclock and then drop as I assume inline stat then opens and then temp gauge creeps back up again to 9 o'clock.

macafee2

As long as the top small stabbing in the expansion tank is clear and not blocked (where the small hose is connected), with the bleed screw removed they pretty much bleed themselves Ian.

Check the level after a few runs, top up if required and you should be fine.

If you lose coolant on the diesels, the first symptom is lack of heating in the cabin, and that happens well before any movement of the temperature gauge.

.

SD1too · 19th December 2018, 07:41

But on other matters Brian you preach that the manufacturer knows best.

So do tell us, why is this any different?

Simon

SD1too · 19th December 2018, 07:43

Quote:

Originally Posted by macafee2

Is there an officel method for bleeding a diesel?

Yes there is Ian, but it doesn't take account of in-line 'stst modifications.

Simon

marinabrian · 19th December 2018, 10:01

Quote:

Originally Posted by SD1too

But on other matters Brian you preach that the manufacturer knows best.

So do tell us, why is this any different?

Simon

Because it's not necessary for what Ian wants to achieve Simon, plus I thought I'd have a go at "cut and paste" answers........sound familiar

Brian

Daveluck · 19th December 2018, 10:32

Quote:

Originally Posted by macafee2

Is there an officel method for bleeding a diesel?

Apart from squeezing top hose and removing bleed screw by battery box
is there anything else?

Having fitted and removed an FBH I'm sure I've lost more coolant then I've put back.

Can watch temp gauge get to 9'oclock and then drop as I assume inline stat then opens and then temp gauge creeps back up again to 9 o'clock.

macafee2

Not to worry you...but you shouldn't see the needle going up and down. With the mod it should raise to 9 o'clock and stay there. Maybe slowly dropping if youre coasting down a long hill.

Have you checked the temperature using the dash? It would be interesting to see what's going on temp wise.

Lotaskin · 19th December 2018, 10:54

I found removing the 8mm bolt that holds the expansion tank in place and lifting tank up helps. Also check the small pipe inlet to the neck of the tank is clear. I have used a tyre pump on the inlet pipe spout to clear the blockage.

macafee2 · 19th December 2018, 12:10

Quote:

Originally Posted by Lotaskin

I found removing the 8mm bolt that holds the expansion tank in place and lifting tank up helps. Also check the small pipe inlet to the neck of the tank is clear. I have used a tyre pump on the inlet pipe spout to clear the blockage.

That's sized I'm afraid

macafee2

18th December 2018, 20:58	#1
macafee2 This is my second home Rover 75 Saloon & Tourer Join Date: Sep 2012 Location: Lincoln Posts: 14,926 Thanks: 1,630 Thanked 3,032 Times in 2,181 Posts	Is there an offical method for bleeding? Is there an officel method for bleeding a diesel? Apart from squeezing top hose and removing bleed screw by battery box is there anything else? Having fitted and removed an FBH I'm sure I've lost more coolant then I've put back. Can watch temp gauge get to 9'oclock and then drop as I assume inline stat then opens and then temp gauge creeps back up again to 9 o'clock. macafee2

18th December 2018, 21:00	#2
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,767 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Remove the bleed screw, ensure the expansion tank is half full then blow down the hole in the expansion tank until all the air is expelled from the bleed hole. __________________ Lest we forget..

19th December 2018, 07:41	#5
SD1too Doesn't do things by halves Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007 Location: Former Middlesex Posts: 20,372 Thanks: 1,587 Thanked 3,749 Times in 3,181 Posts	But on other matters Brian you preach that the manufacturer knows best. So do tell us, why is this any different? Simon __________________ "Whatever is rightly done, however humble, is noble." Sir Henry Royce.

19th December 2018, 10:54	#9
Lotaskin Avid contributor MG ZTT CDTI Join Date: Dec 2011 Location: Basildon Posts: 172 Thanks: 100 Thanked 31 Times in 30 Posts	I found removing the 8mm bolt that holds the expansion tank in place and lifting tank up helps. Also check the small pipe inlet to the neck of the tank is clear. I have used a tyre pump on the inlet pipe spout to clear the blockage.