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 Water Water everywhere ... oh bollocks!
Author Message
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Tue Jul 26, 2005 1:14 pm

Right, I would appear to have too much pressure in my coolant system! Put a new pressure cap on yesterday but would appear to still have water pissing out. Any ideas?
appytiser
Newbie

Joined: 28 Mar 2005
Posts: 19

Posted: Tue Jul 26, 2005 2:40 pm

head gasket or cracked head:(
Roger Red Hat
Site Subscriber

Joined: 13 Oct 2004
Posts: 4722

Posted: Tue Jul 26, 2005 8:28 pm

water pissing out from the pressure cap?

or all over the place..
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 12:25 am

Just the pressure cap. HG just done.
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Wed Jul 27, 2005 12:30 am

pop the cap apart and clean it out.
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 12:31 am

Got a new cap.
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Wed Jul 27, 2005 12:45 am

so a new cao and its pumping water out?

well either you have air, doubtfull to do that tbh or the headgasket is leaking or a cracked head/block.
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 12:49 am

You have got to be kidding me Rolling Eyes How do I know if the head/block is cracked?
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Wed Jul 27, 2005 12:55 am

a small line that creates 2 halves used to be 1 bit defined as a crack gives it away Razz

But it could be anything.

To see if its a crack you need to either get a pressure test done on the car (tricky unless you DIY it) or remove the head and engine and send em off if you can't see it.

Cracks in heads etc are notorious for being hard to spot.

Is coolant passing through the radiator? Is it running hot? a stuck stat would cause these problems.
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 1:01 am

Right, it's still only got water in it, no antifreeze yet...would that help? It has been running hot.
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Wed Jul 27, 2005 1:04 am

water is fine. pure water is a better coolant than a water/antifreeze mix, its only problem is freezing and corrosion.

Anyway when it runs does the radiator get hot from coolant passing through it?
Ian P
Level 2 User

Joined: 19 Jul 2005
Posts: 40

Posted: Wed Jul 27, 2005 1:52 am

dont wanna butt in but if youve only just replaced the pressure cap, it could be that at fault, just coz its new dont mean much. when the engine is warm and you switch off can you hear the water bubbling nr the rad/expansion tank?
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 2:13 am

Yes Rad is getting hot.
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Wed Jul 27, 2005 1:02 pm

Car overheated (red light came on) just as I pulled up to the house this afternoon! If the Head/Block was cracked would there not be other symptoms? Am going to find out tommorrow if a mechanic aquaintance can compression/leakdown test it.
appytiser
Newbie

Joined: 28 Mar 2005
Posts: 19

Posted: Wed Jul 27, 2005 1:17 pm

can you see air bubbles flowing into the expansion tank. These may not show until the engine has warmed up. It may help to hold a torch or light behind the tank as it will show them up clearer. I had a renault diesel that was over pressurising and got bubbles flowing into water tank which I found to be the result of cracks in the head between the valves, but this may also happen cos of HG
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Thu Jul 28, 2005 12:21 am

well I'd say hg or cracks tbh.

even with no pressure on the caps the cars don't tend to over heat, not enough to cause iussues anyway.
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Thu Jul 28, 2005 3:04 am

Not looking good is it? Crying or Very sad
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Thu Jul 28, 2005 4:48 am

not really no
Chris H
Forum Moderator

Joined: 02 Mar 2004
Posts: 19978

Posted: Thu Jul 28, 2005 4:48 am

I blame Chet
schakal
Spammer

Joined: 27 Jul 2004
Posts: 5717

Posted: Thu Jul 28, 2005 11:30 am

i just seen that air bubbles on chamades expansion tank today after a rather long trip when i parked the car .
but it never over heated or anything ,most of the time the neddle sat on 1st notch (the 1st notch after the 2 together at the bottom)
and went between the 1st and 2nd notches now and again due to sitting at traffic etc.
also noticed the fan working as i parked up and the aux water pump running .
any problem there ?
Lindsey
Level 10 User

Joined: 22 Mar 2005
Posts: 621

Posted: Thu Jul 28, 2005 12:01 pm

Is there anything I can put in similar to radweld that will buy me some time? Might be getting a TD soon, hope to transplant the TD lump into mine.

Would a head off a TD fit mine? Don't think the local scrappy has any standard diesels.
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