Dub_nut_g60 0 Posted January 28, 2006 ok guys, didnt expect this so am a bit stuck!! took my car to the garage this morning to have a look at a slight water leak and it turns out my Head Gasket has gone! dont suppose someone has a lil car they would let borrow for the week do they?? i live in Portsmouth area and work in Guildford so have to commute daily and train really isnt practical for where i live and where i have to get to, couple that with having alot of meetings and events after work and it happens the be probably the most inconvenient week for it to happen!!! any help greatly apprecaited, seveal beer tokens waiting for your trouble!!! Cheers Andy Quote Share this post Link to post Share on other sites
Supercharged 2 Posted January 28, 2006 Did they confirm this with a leakdown test, ie you sure it's not just the heat-exchanger... Quote Share this post Link to post Share on other sites
Dub_nut_g60 0 Posted January 28, 2006 they did a compression test on it and it can back with bad news, is the leakdown test different? Quote Share this post Link to post Share on other sites
Tempest 0 Posted January 28, 2006 Just for the record: Compression test: Stick a manometer in each spark plug hole and crank engine; all cylinders should have approx. equal reading, on a G60 anywhere between 10 and 12 bar or so. If deviations found, then they do another compression test, this time squirting a bit of oil down the cylinder under test. if compression value increases, that points to likely piston ring gone. Leak-down test: They pressurise each cylinder with spark plug removed using external compressed air, then measure the compression over a period of time. This can pinpoint the problem a bit more accurately. HTH Tempest Quote Share this post Link to post Share on other sites