water system pressure

at the weekend my car blew a hose and i had to drive bout half a mile  till could get some water in her.

now she keeps blowing the same hose off.

i have noticed that the water system is very very pressurized. i cant squeeze the top hose at all

the engine was originally ran with a expansion tank but now she's in a s1 shell its got a top fill. i blocked off the old hose to expansion tank.  didn't know if this had anything to do with it either?

at first i thought the thermostat thingy wasn't working so i removed it and she's still the same

its from cold as she starts to warm up (1 min idling)

Head gasket gone causing system to become pressurized ?

 

Have you any bubbles in the water !

rov716y said

at the weekend my car blew a hose and i had to drive bout half a mile  till could get some water in her.

Really? and there was me thinking it was raining

 

I heard about it rov, no idea what the cause could be, get it fixed quick sharp though Gaydon at the weekend.

rov716y said

now she keeps blowing the same hose off.

Still talking about the car? :angel:

Sounds head gaskety to me bert  :?
Bert

what hose is it?

its the one top right off engine (to heater matrix)

i thought head gasket too

i'll have to limp over to gaydon then keeping eye on water all the way!!!!

i'll be putting in a td  in not to distant future so think i may just keep an eye on things till then

don't spose someone could bring along a torque wrench to gaydon so i can do head gasket

Did you keep the petrol engine you took out?

rov716y said

don't spose someone could bring along a torque wrench to gaydon so i can do head gasket

I'll bring mine over with me fella
Pete :wink:

you can wreck head altogether though rov,
if you are gonna drive down put your heater onto hot (sweaty stuff) and trip the fan out mate (piece of copper wire over both contacts on thermoswitch on radiator)

still got old engine but she aint going in! Next engine change will be to a td!

tomo320 said

you can wreck head altogether though rov,
if you are gonna drive down put your heater onto hot (sweaty stuff) and trip the fan out mate (piece of copper wire over both contacts on thermoswitch on radiator)

Fan already shorted out to be on when ignition on. Heater on and sunroof open lol! Would i be safe doing head gasket now and getting it torqued down later? I can do them to the ft setting for now! Bloody golf!

i know it aint right not using a torque wrench but i never used one and been ok til now :?  just done them mega tight and started from inside and worked my way outwards.  yeah just do em mega tight mate, like have weetabix tight.  i aint saying this is right thing to do just never had a torque wrench (its grim up north)

A diesel often warps or cracks the head when the head gasket goes, even in the first couple of seconds of it going (eg if it happened at speed or load). If you're leaking coolant, driving more than around 5 miles will severely damage the rest of the engine, it will thin out the oil, (probably start burning it as it creeps past the rings) and eventually you'll lose lubrication, then self-machine the cam, crank and other bearings to possibly seize the engine. Also the head will almost certainly crack and warp even more too.

So, you might arrive at Gaydon on the back of a truck with a seized engine - much more difficult to fix than a blown head gasket.

I can't really see the point of having the head off and not checking it for flatness and skimming if needs be.

before i take head off going to flush all water system out and see what that does then run with filler cap loose if need be

it's fine with filler cap loose.

just done 30 minutes worth off hard driving and still same amount off water in her and not too much pressure in pipes

although when i took filler cap back off the was white smoke (not steam) in there

Be safe rov bring the astra i know you dont want to but its best to arrive in one piece especially with lil one and wifey in the car.

i been driving in it fine so dont see a prob at the mo


Peddersgolf thanks for offering to bring torque wrench but the costs involved in 'sorting' this engine i'm not going to bother and straight get myself a 1.9td for her