Google Groups no longer supports new Usenet posts or subscriptions. Historical content remains viewable.
Dismiss

Help needed - bleeding heater/coolant

0 views
Skip to first unread message

Andy

unread,
Oct 25, 2009, 11:54:05 AM10/25/09
to
In an attempt to cure the problem with a feeble heater on my V8, I have been
advised to bleed the heater pipes in case there is an airlock. I've located
the two heater pipes, squeezing them causes the water in the expansion tank
to swell so deffo the right ones.

Any tips on how to get rid of the suspected airlock then please? Is it just
a simple case of disconnecting one pipe and putting a hose to it and running
it through? Assume water will then spill over from the expansion tank? Or
should I disconnect both hoses and flush through like that?

Any advice appreciated as I have never done anything like this before and
don't want to screw up my cooling system!!

--
Andy

<<'96 D1 V8i Auto>>

GGJ

unread,
Oct 25, 2009, 2:17:08 PM10/25/09
to

"Andy" <andrew...@btinternet.com> wrote in message
news:Q5ednY_fLpEB6XnX...@bt.com...

I take it you mean the two pipes that go into your heater matrix ?
if so pull them both off and flush the matrix through with a hose pipe and
lots of water, it's more than likely that the matrix is full of brown crud
and its stopping the flow of hot water from your engine.

GGJ

Andy

unread,
Oct 25, 2009, 2:21:38 PM10/25/09
to
"GGJ" <GGJnospam.com> wrote in message
news:9OKdnf3KBtFWCXnX...@bt.com...


Thanks will have a go tomorrow.


--
Andy


Austin Shackles

unread,
Oct 25, 2009, 5:54:49 PM10/25/09
to
On or around Sun, 25 Oct 2009 18:21:38 -0000, "Andy"
<andrew...@btinternet.com> enlightened us thusly:

has it got a filler thing on the engine, on one of the heater pipes? spout
bit that sticks up above the engine and has one of those screw-in plugs in
it?

if so, fill it from there.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Travel The Galaxy! Meet Fascinating Life Forms...
------------------------------------------------\
>> http://www.schlockmercenary.com/ << \ ...and Kill them.
a webcartoon by Howard Tayler; I like it, maybe you will too!

Chris Wilkinson

unread,
Oct 25, 2009, 8:20:10 PM10/25/09
to
When I had this problem on a 110 the garage reversed the flow in the
matrix. It solved the problem for a time but eventually the matrix had
to be replaced as it was almost fully blocked. The same garage fitted a
bleeding nipple in the pipe at its highest point.

Still not very hot though but that is due more to the air leaks in the
vehicle which is now 23 years old and 700,000 miles plus.

CHRIS

In message <Q5ednY_fLpEB6XnX...@bt.com>, Andy
<andrew...@btinternet.com> writes

Andy

unread,
Oct 31, 2009, 12:31:59 PM10/31/09
to
Took pipes off, blasted through with clean water, re-bled system.

Red hot heater :-)

Cheers for the tips.

--
Andy

'96 ex Jap D1 V8i

0 new messages