Danza V Posted August 23, 2013 Share Posted August 23, 2013 Not really sure why it would be hg though as head and block were skimmed block was decked as well and a new Athena 1.2 hg used but stranger things have happenedThat's why I generally didn't mention it though but it's worth a try as you says checking compression test. How long after the build did it start doing this? Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 Not sure I've had a few issues so not really done much driving in it tbh Quote Link to post Share on other sites
TurboTobz Posted August 23, 2013 Share Posted August 23, 2013 There was a few issues with Athenas a while back but I think that was the oil ways being partially covered by the gasket.Perhaps the head hasn't sealed, what headbolts did you use? Quote Link to post Share on other sites
Danza V Posted August 23, 2013 Share Posted August 23, 2013 Any other issues relating to cooling? Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 No various stuff like gears clutch oil leak Quote Link to post Share on other sites
TurboTobz Posted August 23, 2013 Share Posted August 23, 2013 I'd block test it for a start, if inconclusive check that pump.How did you bleed it? Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 (edited) My boss seems to think my head is cracked so a compression test should reveal all lolHe's just pissing in the wind tbh but he's normally bloody right grrr Edited August 23, 2013 by russ78 Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 I'd block test it for a start, if inconclusive check that pump.How did you bleed it?Ran it up to temp with rad cap off Quote Link to post Share on other sites
Taggy Posted August 23, 2013 Share Posted August 23, 2013 (edited) dodgy/sticking thermostat maybe, remove it and run it without one see if it still overheats, oh i forgot to ask how your engine building went by the way hope the guide was of some use Edited August 23, 2013 by Taggy Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 dodgy/sticking thermostat maybe, remove it and run it without one see if it still overheats, oh i forgot to ask how your engine building went by the way hope the guide was of some use I'm on 2nd thermostat with same issue mate Quote Link to post Share on other sites
TurboTobz Posted August 23, 2013 Share Posted August 23, 2013 Ran it up to temp with rad cap offTake it you left it running for a fair while and squeezed the hosing etc Quote Link to post Share on other sites
russ78 Posted August 23, 2013 Author Share Posted August 23, 2013 Yeah bud done all that Quote Link to post Share on other sites
russ78 Posted August 24, 2013 Author Share Posted August 24, 2013 Ok so bit of an update done a compression test this morning to reveal 150 over all four cylinders when cold and throttle fully open so it's not cracked head or head gasket so I think next thing to try is water pump Quote Link to post Share on other sites
mikey4410 Posted August 24, 2013 Share Posted August 24, 2013 glad to hear headgaskets fine.was gona say u can borrow my compression tester if needed. next step get that pump of Quote Link to post Share on other sites
russ78 Posted August 24, 2013 Author Share Posted August 24, 2013 I'm on it mate just waiting for rain to stop lol Quote Link to post Share on other sites
garreth27 Posted August 24, 2013 Share Posted August 24, 2013 Fan turning on when it gets to temp? New toyota waterpumps do feel like they have some resistance when new and dont just spin freely like a normal fan. Had a smiliar issue a while ago and turned out to be a blocked radiator. Quote Link to post Share on other sites
jayc-glanza17 Posted August 24, 2013 Share Posted August 24, 2013 russ like I texted you, try another rad mate.have to rule things out to have a greater knowing of the fault..russ take you running the EMU I gave you??if so come take me out in it, and I tell you the exact temperature with the software I still have installed on laptop, as stock temp gauge is not that accurate.. personally sounds like a blockage.. Quote Link to post Share on other sites
russ78 Posted August 24, 2013 Author Share Posted August 24, 2013 ill have a check for blockages again mate but this is the 2nd rad and yeah im running the EMU but im running stock temp gauge and a depo water temp gauge but they both saying same thing Quote Link to post Share on other sites
jayc-glanza17 Posted August 26, 2013 Share Posted August 26, 2013 what temp is the depo saying mate? and where have you fitted the depo gauge sender probe? Quote Link to post Share on other sites
AdamB Posted August 27, 2013 Share Posted August 27, 2013 Just to rule it out, is the engine timed up correctly and ignition timing set? Quote Link to post Share on other sites
russ78 Posted August 27, 2013 Author Share Posted August 27, 2013 Just to rule it out, is the engine timed up correctly and ignition timing set?Yeah bud all checked Quote Link to post Share on other sites
russ78 Posted August 28, 2013 Author Share Posted August 28, 2013 ok so checked the compression again today and all seems to be ok.and water in rad has been bled again but noticed when the rad cap is off water is not rising in the radiator so im guessing that's pointing towards water pump ? Quote Link to post Share on other sites
TurboTobz Posted August 28, 2013 Share Posted August 28, 2013 It takes a bit of revving for the level to change usually it's a subtle movement but if it's there you'll see it Quote Link to post Share on other sites
russ78 Posted August 29, 2013 Author Share Posted August 29, 2013 (edited) ok so really wasn't satisfied with my problem being a brand new water pump so I ran her up to temperature nice and warm till she started overheating again and did another compression test to find results were quite different over the the 4 cylinders number 1 was about 137 and cylinder 4 was around the 150 mark so took rad cap off to find shes under pressure, but a whole lot of bubbles coming up as well I may be wrong but I think I have a cracked head what do you guys think ?videos added --> http://www.youtube.com/watch?v=BjtFncVTOEQ. http://youtu.be/6QTz3cZadSc Edited August 29, 2013 by russ78 Quote Link to post Share on other sites
Taggy Posted August 29, 2013 Share Posted August 29, 2013 defo HG or head gutted for you dude! Quote Link to post Share on other sites
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