I have a seized 4107 diesel engine
. It did get submerged and filled with seawater through the dipstick. I removed all the water
changed the oil
twice and ran it for around 30 minutes. I left it for around two years due to health
issues and its now seized. I have removed the starter motor
and tested it and its fine. the water pump
I think it seized as the waterlock had water
in it and the exhaust
valve for cylinder No1 is open.
I have pulled the four injectors and over a period of a fortnight I have poured warmed diesel
The odd behavior is that after a fortnight cylinder 1 still is full of diesel. If I top up the other three cylinders then No3 goes down in 10 minutes No 4 takes about 20 minutes and No 2 just drops a bit in 2 hours.
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I cant get a camera
into look as there are caps in the head
where the injectors sit. See my photo
I have today put an impact driver on the crankshaft pulley and it has done nothing. I have also put a 1-1/2 socket on there with a breaker bar and a four foot scaffold tube. It started to turn but it was a 12point socket and I think its burring the nut.
My questions are; 1. Is No1 the only seized cylinder? 2. Why does no3 drain so quickly has a ring has gone on No3? The sump is full of diesel and oil
now. 3. Is the next stage to remove the head and look at the cylinders?The engine
did consume oil but I think it leaked from the rocker cover. 4. Can the engine be OK but the TMP gearbox
be seized instead? 5. Can rings be replaced without taking the engine out? (I suspect not)
The problem is that my boat
is on a pontoon and I did an engine change 5 years ago, and it wasn't cheap
or nice. I fancy if its a ring then its an engine re-build but the engine has never smoked although it did run hot and oil pressure was higher than I would expect.
I have attached a picture of a typical head from underneath for clarity.