dogsxxx

help help help,im going through radiators like 1 a month,cars running great,so i think head gasket ok,just put a new water pump on so thats ok...any ideas please......

the_msp

Aluminium rad as opposed to OEM with plastic end caps?

dogsxxx

would this stop the problem?...n why do you think its just started doing it?....it is doing my box in...ive seen the ally rads on ebay,maybe i should treat my self to a christmas box then

stockcar

your either buying poor quality rads or need to look into a more serious problem............

putting an ali rad on will only potentially mask the more involved issue

alyn

dogsxxx

they arnt oem rads ive put on,90 quiders...they are blowing past botton o ring seal..the original oem went at the top hole neck,the plastic itself...so i dunno...what are you thinking,seriously....

p1prodrive

iTrader: (3)

get the water system checked first.

dogsxxx

you mean pressure tested?....

p1prodrive

iTrader: (3)

yeah... check the waterpump, thermostat, head gasket (sniffer test)

matt

dogsxxx

already had new water pump,new thermostat,no contamination into oil,coolent still nice n blue...runs perfect...maybe im looking too hard...im going to try a new rad cap,if mines not releasing water to expansion tank but holding it in engine then may this.the other thing is,it all started when my internal heater matrix weld corroded...maybe,as good as it can be at self bleeding,there might be a air pocket somewhere......this is why im nat mi wits end..ive tried nearly everything

scoobyboy

what bottom o ring seal do you mean?

fabulous555

Im having exactly the same problem. Already changed the thermostat, rad, all the hoses and the header tank. Was just about to change the waterpump as i was under the impression that if it was the headgasket id see bubbles in the header tank? How else can you check for headgasket failure? Mines just had a rebuild!

p1prodrive

iTrader: (3)

By carrying out a 'sniffer' test.

in brief, you put sniffer fluid into the tester and place it in place of your radiator cap and if the fluid changes colour you have a leak ....poss into your water system...thus creating pressure

take a look here :

LISLE 75500 - COMBUSTION LEAK DETECTOR CHECKS BLOCKS-HEADS-GASKET

cheers
matt

fabulous555

Is there anywere in Britain were i can get this kit?

p1prodrive

iTrader: (3)

yes, halfords or snap-on

fabulous555

Brilliant. Il be away down to get 1 tommorow, sort this once and for all. Cheers for the help!

p1prodrive

iTrader: (3)

no probs, i just hope you get it sorted !

if halfords havent got any then a realy good motor factors will have one.

snap on one is a bit pricey, you could try ebay and go to 'tools' and type snap on if theres none in there try sealey but theres is £61.

matt

p1prodrive

iTrader: (3)

remember this is to check for combustion leaks, its not a pressure tester for the water system.

it will just rule out the fact of h/gasket failure leaking gas into the water system.

Bingo !!!!!!

take a look here for £25

BLOCK / COMBUSTION LEAK TEST / TESTER KIT (BT500) on eBay, also, Special Tools Measuring Tool, Garage Equipment Tools, Cars, Parts Vehicles (end time 11-Jan-08 11:34:54 GMT)

matt

dogsxxx

on the rad,you got alloy centre and plstic top and bottom,to seal plastic to alloy,they use like a dirty great oring,i talked to a friend of mine who has a import wrx,his pipes are the same pressure as mine but his dont blow

dogsxxx

dont change your water pump,i did that and it didnt fix it

dogsxxx

anyway,im taking gamble,going for a light weight full tig welded rad...if i pop the engine then i know i had a leak..lol