Suspected Head Gasket

rochey88 · January 15, 2011, 12:45:54 PM

Hey guys

Im going out of my mind here.... cut a long storie short !

the headgasket went on my g40 bout a year ago......

I immeditaly done all the nessecory work to the car and replaced it

gasket... bolts, skimming, pressue testing etc etc you get my drift......

month later headgasket went again........ which lead me to assume the head was warped /cracked... anyway..... got a head from a working and running g40..... and swoped them over.....

again i done all of the above bar pressure testing and skimming...... new head bolts new gasket etc etc..... id done all this in the space of 2 month then the MOT run out and so did my tax.. i sorn'd the car off the road as id lost my job.

i start and run the car up to temp most days !! the car has been off the road naw 8 months...

I put a combustion leek tester on it this mornin and the liquad changed colour.... it didnt turn yellow as it should it jut went to a light blue..?

does this mean my bottom end is warped or..... im lost and confused HELP!

hayesey · January 16, 2011, 10:30:03 AM

Did you get the replacement head skimmed or checked for flatness? Or like you say, could be the block itself

grungeisdead · January 16, 2011, 07:17:53 PM

have you still got the old head? it might be worth getting that checked over by an engineer and if it comes back as a-ok, then you may want to suspect your current block.

have you had the engine compression tested in its current state

rochey88 · January 16, 2011, 11:44:59 PM

Quote from: hayesey on January 16, 2011, 10:30:03 AM
Did you get the replacement head skimmed or checked for flatness? Or like you say, could be the block itself

no the replacment had came off a low genuine low millage engine which was being split

rochey88 · January 16, 2011, 11:45:52 PM

Quote from: grungeisdead on January 16, 2011, 07:17:53 PM
have you still got the old head? it might be worth getting that checked over by an engineer and if it comes back as a-ok, then you may want to suspect your current block.

have you had the engine compression tested in its current state

yes ive done compression test on all 4 cylinders they are within .2 of eachother which i was told are fine? i may be wrong

alan gorst · January 25, 2011, 11:58:06 PM

i have the same problem i done my head gasket about a month ago and its just went again...but i think mine may be due to over heating problems

poloeatonm45 · May 23, 2011, 08:24:28 PM

did you guys get this prob sorted as i have the same prob with my g40 head gasket went changed it and 30 miles later it went again so changed it again spoke to an guy from my local garage and he said it looked like i was running too much ignition advance so knocked it back a bit and put a new head gasket on put it all back together and it lasted about 20 miles and has gone again

can anyone help me with this

steve

youngprodigys · May 23, 2011, 10:15:52 PM

is the head warped? have the mating faces of the head gasket got corrosion on?

poloeatonm45 · May 23, 2011, 11:01:28 PM

hi bud not sure if its warped or not i aint had it tested yet but their was no corrosion on the gasket as it was only on the engine for about 2 days before it went again its weird though my bro who is the mechanic out of us both said when you look at the rings on the gasket that seal the cylinders you can see they are all dimply as he put it you can see where the gases or pressure has been trying to get out

steve

hayesey · May 24, 2011, 10:03:47 AM

you need to get at least the head tested for warping and ideally the block too.

poloeatonm45 · May 24, 2011, 10:33:55 AM

I hope my blcok aint warpped its only done 6 and a half thousand miles. From new

Steve

hayesey · May 24, 2011, 11:13:22 AM

from new!??!

poloeatonm45 · May 24, 2011, 02:14:39 PM

Yeah I have an ex cup car engine in my car

hayesey · May 24, 2011, 02:43:06 PM

ok, so that's 6.5k of track miles then!

poloeatonm45 · May 24, 2011, 03:13:41 PM

I believe so yeah but it has has a rebuild since but yeah they will of been hard miles