May 10, 201311 yr comment_423022 Zed Head said: Any chance you have a head bolt or two bottoming out? Torque wrench working incorrectly? Dry bolt threads giving high torque wrench readings? Warped head?good point. Since he's poiting out there's coolant in each cylinder, it must be a head gasket failure. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423022 Share on other sites More sharing options...
May 10, 201311 yr Author comment_423048 Well I have new gasket on place so faulty gasket won't explain symptoms. I loaned a leakdown tester and results were confusing. I can hear loud hiss coming from below timing chain (oil sump) IN EVERY CYLINDER. Has the head cracked or what? I did test twice, second time after i retorqued bolts. No change to results. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423048 Share on other sites More sharing options...
May 10, 201311 yr Author comment_423056 Well my mechanic friend confirmed that it "should" leak a little from every cylinder, pressurised air gets trough from pretty small places. But still no resolution to cyl 2 and 3 behavior. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423056 Share on other sites More sharing options...
May 12, 201311 yr Author comment_423198 Figured out reason for low pressure, exhaust valve leaks like he**. Must be bent valve? Cause lash is set by the book. Luckily i have set of new exhaust valves, thanks to Arne But im taking it to machine shop, they can do it better. Still doesnt explain why the oil was mixed with coolant... :/ Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423198 Share on other sites More sharing options...
May 12, 201311 yr comment_423199 Is the head gasket oem nissan or some immitation brand? Some gaskets can give troubles. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423199 Share on other sites More sharing options...
May 12, 201311 yr Author comment_423201 it was (and new one as well) MSA gasket. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423201 Share on other sites More sharing options...
May 12, 201311 yr comment_423208 try another head gasket brand than MSA.. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423208 Share on other sites More sharing options...
May 13, 201311 yr Author comment_423276 Well.. too bad none available right now. Not THAT common car, nor part around these latitudes :/ Taking the head to machine shop today, hope to hear some good news soon. I've took the head off so many times now that i can do it with eyes closed. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423276 Share on other sites More sharing options...
May 13, 201311 yr comment_423287 Did the machine shop perform a pressure test on the head or just check it for straightness?I had a casting flaw by the exhaust valve that let water into the engine. You are having problems with the exhaust valves sealing. I'de check for cracks around the exhaust valves.felpro head gasket will work just fine. Edited May 13, 201311 yr by hr369 Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423287 Share on other sites More sharing options...
May 13, 201311 yr comment_423291 Felpro from amazon.com $18 with free shipping to me, I'm not sure about your latitude. Edited May 13, 201311 yr by siteunseen Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423291 Share on other sites More sharing options...
May 14, 201311 yr Author comment_423387 They just checked the straightness. Well its back on the shop for valve job, hope they do not find anything scary out there. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423387 Share on other sites More sharing options...
May 16, 201311 yr comment_423529 I just read that a hidden hole can develop behind the water pump and let coolant into the oil. Link to comment https://www.classiczcars.com/forums/topic/46403-oil-sump-full-of-coolant-whyyy/?&page=3#findComment-423529 Share on other sites More sharing options...
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