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Post by Deleted on Jan 14, 2022 20:34:23 GMT
Thank you. Have tried but think he might have retired - or worse x Might have a go myself if that's what's needed. Have found the settings.. just hope I find the nerve! I worry because it is an ally cover and know how susceptible to distortion/cracking that could be. As long as you follow the settings and tightening sequence, youβll be fine.
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Post by metanoia on Jan 14, 2022 20:38:21 GMT
Torqueing the head bolts is easy enough (with a torque wrench) but you have to do it in a radial pattern to avoid stressing the head. Plenty of youtube videos on the subject. The ally rocker cover doesn't need much pressure at all, it's just a cover. Definitely get a new seal before you start if it's leaking. Gasket sealant is a bit of a bodger's resort. Thanks. Have the loan of a torque wrench next week. Sorry if I sound thick but what do you mean by a new seal? Only noticed a tiny bit of seepage after an oil and filter replacement. Have been round with white spirit on a rag today to see if it reappears. Not using oil. Just water/coolant, which has been an ongoing issue anyway.
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Post by metanoia on Jan 14, 2022 20:38:53 GMT
Thank you. Have tried but think he might have retired - or worse x Might have a go myself if that's what's needed. Have found the settings.. just hope I find the nerve! I worry because it is an ally cover and know how susceptible to distortion/cracking that could be. As long as you follow the settings and tightening sequence, youβll be fine. Thanks
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Post by Deleted on Jan 14, 2022 20:42:11 GMT
Torqueing the head bolts is easy enough (with a torque wrench) but you have to do it in a radial pattern to avoid stressing the head. Plenty of youtube videos on the subject. The ally rocker cover doesn't need much pressure at all, it's just a cover. Definitely get a new seal before you start if it's leaking. Gasket sealant is a bit of a bodger's resort. Thanks. Have the loan of a torque wrench next week. Sorry if I sound thick but what do you mean by a new seal? Only noticed a tiny bit of seepage after an oil and filter replacement. Have been round with white spirit on a rag today to see if it reappears. Not using oil. Just water/coolant, which has been an ongoing issue anyway. No not thick. Some covers (most I would think) have a gasket or seal on the bottom edge where it contacts the head. Its very common for it to weep. Cheap and easy to replace.
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Post by metanoia on Jan 14, 2022 20:45:33 GMT
Thank you. Will check it out. A bottom gasket??!!
Glad to know this is still a sort of boating forum.
Thank you both for your help and advice.
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Post by Deleted on Jan 14, 2022 20:47:30 GMT
Torqueing the head bolts is easy enough (with a torque wrench) but you have to do it in a radial pattern to avoid stressing the head. Plenty of youtube videos on the subject. The ally rocker cover doesn't need much pressure at all, it's just a cover. Definitely get a new seal before you start if it's leaking. Gasket sealant is a bit of a bodger's resort. Thanks. Have the loan of a torque wrench next week. Sorry if I sound thick but what do you mean by a new seal? Only noticed a tiny bit of seepage after an oil and filter replacement. Have been round with white spirit on a rag today to see if it reappears. Not using oil. Just water/coolant, which has been an ongoing issue anyway. Post a pic of where the leak is occurring if you can. Coolant loss is likely not serious so long as its not combining with engine oil. You'll tell if this is happening because the oil will have a milky appearance. This is very bad news if so and requires immediate investigation.
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Post by Deleted on Jan 14, 2022 20:54:16 GMT
Thank you. Will check it out. A bottom gasket??!! Glad to know this is still a sort of boating forum. Thank you both for your help and advice. The head is the bit which holds the valves and valve springs. If you remove the rocker cover you will see them - quite large things. The purpose of the rocker cover is just to protect the valvegear and to stop oil from leaking. It is the bit uppermost on the engine. What engine is it, I can probably find an exploded diagram.
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Post by metanoia on Jan 14, 2022 20:58:36 GMT
Thanks. Have the loan of a torque wrench next week. Sorry if I sound thick but what do you mean by a new seal? Only noticed a tiny bit of seepage after an oil and filter replacement. Have been round with white spirit on a rag today to see if it reappears. Not using oil. Just water/coolant, which has been an ongoing issue anyway. Post a pic of where the leak is occurring if you can. Coolant loss is likely not serious so long as its not combining with engine oil. You'll tell if this is happening because the oil will have a milky appearance. This is very bad news if so and requires immediate investigation. Can't do pics - and if I could it would be disappointing. There isn't a leak as such - my oil level has been static since I last changed it about a month/60 hours ago, just noticed a tiny seepage where the block meets the head. As I said earlier, major work this time last year so perhaps things are now just "settling down" and need tightening? Hopefully the white spirit test will prove something tomorrow... Oil looks fine. This engine has always used a lot of water/coolant, perhaps because it IS ally? Not a problem as I check it daily - not great fun in these sub zero temperatures but .. Thank you - and hope it isn't very bad news x
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Post by metanoia on Jan 14, 2022 21:01:30 GMT
Thank you. Will check it out. A bottom gasket??!! Glad to know this is still a sort of boating forum. Thank you both for your help and advice. The head is the bit which holds the valves and valve springs. If you remove the rocker cover you will see them - quite large things. The purpose of the rocker cover is just to protect the valvegear and to stop oil from leaking. It is the bit uppermost on the engine. What engine is it, I can probably find an exploded diagram. Thanks again. I have those diagrams and settings - just waiting for my torque wrench now.
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Post by Deleted on Jan 14, 2022 21:11:10 GMT
Post a pic of where the leak is occurring if you can. Coolant loss is likely not serious so long as its not combining with engine oil. You'll tell if this is happening because the oil will have a milky appearance. This is very bad news if so and requires immediate investigation. Can't do pics - and if I could it would be disappointing. There isn't a leak as such - my oil level has been static since I last changed it about a month/60 hours ago, just noticed a tiny seepage where the block meets the head. As I said earlier, major work this time last year so perhaps things are now just "settling down" and need tightening? Hopefully the white spirit test will prove something tomorrow... Oil looks fine. This engine has always used a lot of water/coolant, perhaps because it IS ally? Not a problem as I check it daily - not great fun in these sub zero temperatures but .. Thank you - and hope it isn't very bad news x Well ok but I'm a little concerned that you are correctly labelling the block and head, don't assume any slur intended. An exploded diagram would help clarify things. The engine should not lose any coolant (it sure didn't leave the factory that way) but there are several reasons why it might, and mostly not critical. If it is the head gasket leaking then tightening the head bolts is the correct first step but if that doesn't stop the leak you need a new head gasket. What model engine?
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Post by metanoia on Jan 14, 2022 21:20:24 GMT
Sorry to say it is a Lombardini, which so many know so little about.
Head gasket replaced January 2021. Head removed, valves cleaned and re-seated. Have always used lots of water but NOT oil. Still not using oil.
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Post by Deleted on Jan 14, 2022 21:44:43 GMT
TBH Met, I'd recommend taking the boat to a friendly boatyard / mechanic just to confirm whether it is in fact the head gasket leaking before you start wrenching on it. Can't hurt.
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Post by Deleted on Jan 14, 2022 21:47:50 GMT
E10 apparently takes out rubber fuel hoses. That could explain the fuel leak me thinks..
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Post by Deleted on Jan 14, 2022 21:52:58 GMT
E10 apparently takes out rubber fuel hoses. That could explain the fuel leak me thinks.. The hoses ainβt rubber.
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Post by Deleted on Jan 14, 2022 21:54:54 GMT
Guilty of not looking at the picture !
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