LooNy Posted November 23, 2013 Posted November 23, 2013 Need a good head gasket a thick steel one becaus standard gasket keeps blowing between cylinders.Changed head gasket twice and each lasted 3hrs Quote
Idrees Posted November 23, 2013 Posted November 23, 2013 Why does it only last 3 hours? Who fitted them and did they use new bolts? We stock new MLS head gaskets but you need to know what going wrong before upgrading it mate. Quote
Glanza-Ben Posted November 23, 2013 Posted November 23, 2013 What the hell are you doin to make it last 3 hours Quote
LooNy Posted November 24, 2013 Author Posted November 24, 2013 New bolts also skimed the gasket I use is £50 from idworkz Quote
TurboTobz Posted November 24, 2013 Posted November 24, 2013 Ouch I'd be looking more into why than just trying to plug the gap. Somethings not right if it's lasting < 3Hours Quote
Idrees Posted November 24, 2013 Posted November 24, 2013 That's a genuine Toyota gasket we sell at ~£50 mate. You may want to get the block surface checked/decked. Quote
ROTABOOST Posted November 24, 2013 Posted November 24, 2013 If the head has been skimmed and new bolts fitted and torqued down correctly then you must have a warped block. How are you cleaning the block up before placing the new gasket on? Quote
Jamie1st Posted November 24, 2013 Posted November 24, 2013 If the head has been skimmed and new bolts fitted and torqued down correctly then you must have a warped block. How are you cleaning the block up before placing the new gasket on?Agreed Quote
TurboTobz Posted November 24, 2013 Posted November 24, 2013 Do you use any kind of sealant along with your head gasket? Hylomar etc? Quote
LooNy Posted November 25, 2013 Author Posted November 25, 2013 I rub the face down so nice and clean and don't use any sealent ? The gasket goes between cylinder 1 and 2 it's blows a inch gap so then there's no compression on 1 and 2 Quote
Idrees Posted November 25, 2013 Posted November 25, 2013 Rub which face down? And what do you use to rub it down? Quote
LooNy Posted November 25, 2013 Author Posted November 25, 2013 80 DA disc and the cylinder block Quote
Idrees Posted November 25, 2013 Posted November 25, 2013 Chances are you've warped the block by doing that I'm afraid mate. You'll want to get the block decked now which will most probably be an engine out job. Quote
LooNy Posted November 26, 2013 Author Posted November 26, 2013 I've warped the block by doing what rubbing it down with a flat disk on a block ? Quote
Zeldoz Posted November 26, 2013 Posted November 26, 2013 I've warped the block by doing what rubbing it down with a flat disk on a block ? I'm not expert in this.. But surely you could of.. If you applied more pressure one end, and less the other it will rub deeper and therefore warp it? Feel feel to ignore this post if its all wrong lmao! Quote
LooNy Posted November 26, 2013 Author Posted November 26, 2013 I don't think it's corse enough to damage the metal just takes te dirt off Quote
maddox710 Posted November 26, 2013 Posted November 26, 2013 Get a steel ruler and feeler gauge and take measurements all over the surface of the block make sure you write it down, then compare the results from in between each cylinder against each other I'd say 0.0020mm is the max limits of play any more and I'd say it needs re decking, I could be out in the measurement but a quick Google could confirm that Quote
LooNy Posted November 28, 2013 Author Posted November 28, 2013 Is the block cast iron or ally ? Quote
Ryan_EP82 GT Posted November 29, 2013 Posted November 29, 2013 For future reference, the torque settings for oem headbolts are relavtively low and can cause the hg to not be sealed proper.. they should be 30% more for the small bolts and 40% more for the longer bolts. Dunno if it helps but bear it in mind when puttin it back together! Quote
LooNy Posted November 29, 2013 Author Posted November 29, 2013 Well I tourque the hea bolts 36nm ad 90% turn ? Is this correct ? Quote
Idrees Posted November 29, 2013 Posted November 29, 2013 Stage 1 22nmStage 2 44nmStage 3 90 degrees Quote
LooNy Posted November 29, 2013 Author Posted November 29, 2013 Wow really ? I have standard head and block and pistons with ct9 so I torqued wrong ? Quote
Idrees Posted November 29, 2013 Posted November 29, 2013 Yes mate, I've used the above torque settings many times without a problem. Quote
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