Raider Posted March 5, 2016 Share Posted March 5, 2016 My 2000 that was assaulted by wild boar 🙁 now has a new radiator back on along with electric fan.Thing is though, on running it up the engine gets hot but the radiator doesn't (I have put water in it 😀 - water/antifreeze mix to follow in due course).The rubber hoses to heat the inlet manifold are hot as is the thermostat cover but the top hose is getting miildly warm at best.My best guess is the thermostat has gone on strike after 6 months of not doing anything or there's an airlock.Suggestions before I return to this in two weeks time? Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted March 5, 2016 Share Posted March 5, 2016 Most likely there is an airlock under the thermostat which is keeping the water from it - so, as it's not in contact with the water, it doesn't open. Have had exactly this issue in the past with both PI and Vitesse. Some thermostats have a small bleed hole in them to prevent it happening but not all. You can bleed it by whipping out the temperature sensor in the thermostat housing or taking the link hose to the inlet manifold off until water comes through.You might find that if you leave it two weeks that it fixes itself as the thermostat probably isn't that airtight! Nick Quote Link to comment Share on other sites More sharing options...
Dogsbody47uk Posted March 5, 2016 Share Posted March 5, 2016 If your thermostat hasn't got a bleed hole in it then drill 1/8th inch hole in the outer flange of the stat. Solves the problem of airlocking under the stat. Cheers, Dave. Quote Link to comment Share on other sites More sharing options...
Raider Posted March 22, 2016 Author Share Posted March 22, 2016 Well the top hose and the radiator now get hot.Unfortunately coolant level in the radiator drops after a few minutes running, the oil is a very light colour and thin whilst the emissions from the exhaust are very enthusiastic!See video here https://youtu.be/Acs5TfDUs_4I think I know very well what the problem is but comments are welcome Quote Link to comment Share on other sites More sharing options...
JohnD Posted March 22, 2016 Share Posted March 22, 2016 I think I know what you are thinking and I think you re right.John Quote Link to comment Share on other sites More sharing options...
Greeks Posted March 22, 2016 Share Posted March 22, 2016 I agree with John.... See if you can make it to Strasbourg Quote Link to comment Share on other sites More sharing options...
Raider Posted March 22, 2016 Author Share Posted March 22, 2016 Quoted from Greeks I agree with John.... See if you can make it to Strasbourg I thought about you Graham trying to persuadde a German policeman all would be well if you oculd get onto the Autobahn Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted March 22, 2016 Share Posted March 22, 2016 Before you go yanking the head off again, a thought.......The exhaust is indeed steaming well and HGF is probably the "favourite" culprit. However, there might be another, albeit rarer. I had a similar incident years ago which turned out to be a problem with the inlet manifold heating pipe letting water into no.6 inlet runner. Bypassing the water line through the manifold will prove/disprove it. I actually spotted mine when taking the manifold off before removing the head. Fixing the manifold was harder than changing a head gasket though!With the amount of steam showing, removing the plugs will show you the affected cylinder(s) as the plug(s) will steamed clean.Nick Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted March 22, 2016 Share Posted March 22, 2016 That steam reminds me of coming home from last years HCR start......when the head gasket had gone. As they say in Stars in Your Eyes, as they come through the cloud....Who do you want to be tonight?...."A Triumph mechanic!" Quote Link to comment Share on other sites More sharing options...
Raider Posted March 22, 2016 Author Share Posted March 22, 2016 Quoted from Velocita Rosso That steam reminds me of coming home from last years HCR start......when the head gasket had gone. As they say in Stars in Your Eyes, as they come through the cloud....Who do you want to be tonight?...."A Triumph mechanic!" Yup that's what I think too but I am fed up of working on cars, I want to drive them Nick, I have just whipped the plugs out and they all look the same. Quote Link to comment Share on other sites More sharing options...
Rallyspit Posted March 22, 2016 Share Posted March 22, 2016 On your video you can see the overflow bottle pressurising as you rev the engine. Almost certainly head gasket failure or a cracked head. Sorry - don't shoot the messenger! Quote Link to comment Share on other sites More sharing options...
Raider Posted March 22, 2016 Author Share Posted March 22, 2016 Quoted from Rallyspit On your video you can see the overflow bottle pressurising as you rev the engine. Almost certainly head gasket failure or a cracked head. Sorry - don't shoot the messenger! That's what I thought. Those wild boar have a lot to answer for Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted March 22, 2016 Share Posted March 22, 2016 Quoted from Raider That's what I thought. Those wild boar have a lot to answer for Tusk,tusk,tusk.... Quote Link to comment Share on other sites More sharing options...
TedTaylor Posted March 22, 2016 Share Posted March 22, 2016 Quoted from Raider That's what I thought. Those wild boar have a lot to answer for Yes those bloody things in the Forest of Dean MUT Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted March 23, 2016 Share Posted March 23, 2016 Pheasants are the same - might be scrawny neck b*st*rds but they'll still rip a carbon fibre front splitter off.Thankfully, never hit anything like a boar or pig, which I am mighty thankful for.I guess at least now you can make the decision of cut losses or build a new engine for it / rebuild the current one. Quote Link to comment Share on other sites More sharing options...
Raider Posted March 23, 2016 Author Share Posted March 23, 2016 I built this engine with a reground crank, lightened flywheel, GT6 cam etc and all it has done is the mileage to the Czech Republic Diring that drive it went very well, nice and smooth whilst being quite lively for a 2 litreI am planning just the headgasket and maybe a head skim - unless more problems are revealed Quote Link to comment Share on other sites More sharing options...
ferny Posted March 23, 2016 Share Posted March 23, 2016 The radiator was damaged on the 10CR? So, what's to say that it wasn't driven around and left running by the peoples whose care it was left in? I'd be having a word with the insurance company. You may even get out of doing the job yourself... Quote Link to comment Share on other sites More sharing options...
Velocita Rosso Posted March 23, 2016 Share Posted March 23, 2016 Quoted from ferny The radiator was damaged on the 10CR? So, what's to say that it wasn't driven around and left running by the peoples whose care it was left in? I'd be having a word with the insurance company. You may even get out of doing the job yourself... Got a point there, even loading on to the transporter......also...depends on how long you drove when empty of water ...even a short period will affect it Quote Link to comment Share on other sites More sharing options...
Raider Posted March 23, 2016 Author Share Posted March 23, 2016 Quoted from Velocita Rosso Got a point there, even loading on to the transporter......also...depends on how long you drove when empty of water ...even a short period will affect it All good points.Ferny, I have had a payout by the insurance company for me to fix the car myself so I am happy enough with that.Mike, yes we ran it for a few miles (!) to reach a town and by the end it was pinking badly, had no water in it and coasted into a parking space in the centre of Plana - then it wouldn't restart. I'd say there's a very good chance this is where the damage happened.Since then it's just been a case of getting into a position where I could refit a radiator and run it on tickover back here. Quote Link to comment Share on other sites More sharing options...
Slimboyfat Posted March 23, 2016 Share Posted March 23, 2016 MartinFrom that I would check that the pistons haven't picked up (they usually do under those circumstances). Quote Link to comment Share on other sites More sharing options...
Raider Posted March 23, 2016 Author Share Posted March 23, 2016 Quoted from Slimboyfat MartinFrom that I would check that the pistons haven't picked up (they usually do under those circumstances). Picked up? Sorry Dave, I am not that knowledgable so can you explain what that means? Quote Link to comment Share on other sites More sharing options...
Slimboyfat Posted March 23, 2016 Share Posted March 23, 2016 Generally if you run an engine without coolant and it gets very hot the pistons 'grow' a little in the bores and start losing aluminium to the bore wall. This is usually evident by aluminium marks on the thrust side of the bore wall. Quote Link to comment Share on other sites More sharing options...
Raider Posted March 23, 2016 Author Share Posted March 23, 2016 Thanks Dave - preparing for the worst then and hoping for the best Quote Link to comment Share on other sites More sharing options...
Jonny-Jimbo Posted March 23, 2016 Share Posted March 23, 2016 Martin, that's when the aluminium gets too hot and from memory melts in localised places then cools, and gives a rough appearance where the metal as 'picked up' hence the name.Here's an example of an aluminium con-rod from a compressor I rebuilt after it seized solid. Quote Link to comment Share on other sites More sharing options...
Raider Posted March 27, 2016 Author Share Posted March 27, 2016 Update - blown head gasket between 3&4 Quote Link to comment Share on other sites More sharing options...
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