TD5 loosing coolant and possibly over pressurising cooling system
bernard
On the TD5 I’m loosing coolant and having to top up bleed the system
every 500 clicks or less. Some coolant certainly blows out the
reservoir bottle cap, the cap is the second new one, some possibly
exits elsewhere, I bypassed the heater to eliminate that? If you bleed
and top up and blled and run with the resivoir bottle cap of you can
see the level rising.
I’m told a crack in the cylinder block could be pressurizing the
system but suspect (hope) not as no water contamination in the oil or
other signs are present. I suspect a blockage somewhere between bottle
and the pump, with the output side of water pump is positively
pressurizing the system however am not sure of the type of pump nor
familiar with the cooling system. Thermostat possible? Collapsed pipe
internally?
Anyone had a similar experience? All suggestions welcome.
Many thanks as always
Braye
Hennie Rautenbach
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bernard
cheers
b
On Jan 5, 9:25 pm, Hennie Rautenbach <hennie.rautenb...@gmail.com>
wrote:
> > overland-foru...@googlegroups.com<overland-forum%2Bunsubscribe@googlegroups.com>
>
> > 4x4's and other stuff for sale:
> >http://www.overland.co.za/phpBB3/viewforum.php?f=2- Hide quoted text -
>
> - Show quoted text -
Michelle Bainbridge
On Wed, Jan 6, 2010 at 7:54 AM, bernard <yachtb...@hotmail.com> wrote:
defender 110 2000 model 190k km's
cheers
b
Oh dear... my sympathies! I know those symptoms on that model well. Keep an eye on the pipes, it's likely they're going to start going one by one - we've replaced every single one including the metal one at the very bottom of the system which was the last/latest to go. You'll find the oil getting thinner and thinner as coolant mixes with it through the crack you probably have in the head, with associated loss of power and overheating. There may be mud in the coolant later where dust gets in - we've had to flush the system a number of times.
We're down to topping up the coolant every day - and sometimes every time we stop. Trouble is it costs more to replace the head than what the truck is worth!
Michelle
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Des Westcott
By the sounds of it, it could be a blown head gasket or a cracked head.
With either of these two, you do not necessarily have contamination of water
or oil. Basically, your cylinder head separates water, oil and combustion
gasses. If your gasket blows or head cracks between water and oil jackets,
you'll get contamination. If the gasket goes or the head cracks between
combustion chamber and water, youl'll pressurise the coolant etc etc.
I have no specific knowledge of the TD5, but that is a simplified version of
how it generally works.
Des
----- Original Message -----
From: "bernard" <yachtb...@hotmail.com>
To: "overland-forum" <overlan...@googlegroups.com>
Sent: Tuesday, January 05, 2010 7:26 PM
Subject: [Overland] TD5 loosing coolant and possibly over pressurising
cooling system
Good evening again all,
On the TD5 I�m loosing coolant and having to top up bleed the system
every 500 clicks or less. Some coolant certainly blows out the
reservoir bottle cap, the cap is the second new one, some possibly
exits elsewhere, I bypassed the heater to eliminate that? If you bleed
and top up and blled and run with the resivoir bottle cap of you can
see the level rising.
I�m told a crack in the cylinder block could be pressurizing the
system but suspect (hope) not as no water contamination in the oil or
other signs are present. I suspect a blockage somewhere between bottle
and the pump, with the output side of water pump is positively
pressurizing the system however am not sure of the type of pump nor
familiar with the cooling system. Thermostat possible? Collapsed pipe
internally?
Anyone had a similar experience? All suggestions welcome.
Many thanks as always
Braye
--------------------------------------------------------------------------------
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> DO YOU WANT TO UNSUBSCRIBE ? Then send a blank email to:
> overland-foru...@googlegroups.com
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opti...@mweb.co.za
Mike Cliff
Sent via my BlackBerry from Vodacom - let your email find you!
-----Original Message-----
From: "Des Westcott" <d...@theclan.co.za>
Date: Wed, 6 Jan 2010 08:35:27
To: <overlan...@googlegroups.com>
Subject: Re: [Overland] TD5 loosing coolant and possibly over pressurising
cooling system
Bernard
By the sounds of it, it could be a blown head gasket or a cracked head.
With either of these two, you do not necessarily have contamination of water
or oil. Basically, your cylinder head separates water, oil and combustion
gasses. If your gasket blows or head cracks between water and oil jackets,
you'll get contamination. If the gasket goes or the head cracks between
combustion chamber and water, youl'll pressurise the coolant etc etc.
I have no specific knowledge of the TD5, but that is a simplified version of
how it generally works.
Des
----- Original Message -----
From: "bernard" <yachtb...@hotmail.com>
To: "overland-forum" <overlan...@googlegroups.com>
Sent: Tuesday, January 05, 2010 7:26 PM
Subject: [Overland] TD5 loosing coolant and possibly over pressurising
cooling system
Good evening again all,
reservoir bottle cap, the cap is the second new one, some possibly
exits elsewhere, I bypassed the heater to eliminate that? If you bleed
and top up and blled and run with the resivoir bottle cap of you can
see the level rising.
Marc Hall
gasket is popped, but beware of not confusing bubbling with flow from the
reservoir tank.
mh...
On Behalf Of opti...@mweb.co.za
Graeme Bell
cracked etc etc. On closer inspection a water pipe was worn through and the
leaking stopped when the pipe was replaced.
I hope you are as lucky.
Graeme
-----Original Message-----
From: overlan...@googlegroups.com
[mailto:overlan...@googlegroups.com] On Behalf Of Marc Hall
Sent: 06 January 2010 09:22 AM
To: overlan...@googlegroups.com
Subject: RE: [Overland] TD5 loosing coolant and possibly over pressurising
cooling system
bernard
opposite side but I can't be sure if this is the same water blowing
out the bottle or not. I'll investigate more.
No bubles when running at all. just a rise in water level in the
bottle.
B
On Jan 6, 9:49 am, "Graeme Bell" <immigrati...@polka.co.za> wrote:
> My td5 was dripping coolant and everyone told me id bought a lemon, head
> cracked etc etc. On closer inspection a water pipe was worn through and the
> leaking stopped when the pipe was replaced.
>
> I hope you are as lucky.
>
> Graeme
>
>
>
> -----Original Message-----
> From: overlan...@googlegroups.com
>
> [mailto:overlan...@googlegroups.com] On Behalf Of Marc Hall
> Sent: 06 January 2010 09:22 AM
> To: overlan...@googlegroups.com
> Subject: RE: [Overland] TD5 loosing coolant and possibly over pressurising
> cooling system
>
> Not smoke AFAIK! If coolant bubbles (appears to be boiling), the head
> gasket is popped, but beware of not confusing bubbling with flow from the
> reservoir tank.
>
> mh...
>
> On Behalf Of optir...@mweb.co.za
>
> > To test for a blown head: start the car and let idle. Take off the
> radiator cap and
> > watch for smoke exiting from the radiator. Or so I am told.- Hide quoted text -
Jan Roztocil
if head gasket blown you will either have - rad coolant contaminated by gas or steam will be coming out of exhaust, Silverton rad. franchise will test your coolant free of charge, steam check yourself - problem is that if that happen during highway speed you will not be able to notice as the coolant will evaporate beforehand, check exhaust end pipe for sign of water alternatively Dyna test the motor
last one is coolant in oil which is easy to test
if however leak occurs within the system please note that the system is pressurized and the coolant will escape with ease
also check heater pipes for leak - again the radiator outfit will do the pressure test free of charge
good luck
cheers
jan
| bernard <yachtb...@hotmail.com>
Sent by: overlan...@googlegroups.com 01/06/2010 11:43 AM
|
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