I'll try and get a photo of the endoscope screen for No3 & 4 cylinders. Can anyone shed any light why these 2 pistons look like they melted, yet the others look OK ?
I'm sorry to here your news Gary.RIP R10GJO
Proper f****d
Head gasket
No1 cylinder nice and clean, little fuel residue from me turning it over
No2 cylinder very oily piston face OK
No3 cylinder piston face looks like toasted cheese
No4 cylinder piston face looks like toasted cheese
No5 cylinder very oily, piston face OK
No6 cylinder nice and clean, little fuel residue as in No1
Too much work to refurbish the current engine, so will ask my son if he wants it for a project.
If not, I'll break it for the good bits and then start looking for another car
That's a real pain in the ass, thinking of a Z4 next or sticking to a Z3?
I must be missing the point , but why not get another engine , must be a few available with cars being broken. A couple of members on site come to mind
Did you have full compression when you tested it?
The toasted cheese is probably carbon from the oil that went past the piston rings and into the combustion chamber.
I think that you are right about the engine, though I would whip the head off just to confirm. If the rings are damaged, you had might as well scrap the car or give it to your son.
No matter what, it will be a lot of work (and mess) cleaning the head and pistons.
I work away from home and am only there Friday night, Saturday and Sunday. I'm 60 now and just can't be arsed to be lying around on the garage floor. I like to drive my cars.
So sorry to hear the news.RIP R10GJO
Proper f****d
Head gasket
No1 cylinder nice and clean, little fuel residue from me turning it over
No2 cylinder very oily piston face OK
No3 cylinder piston face looks like toasted cheese
No4 cylinder piston face looks like toasted cheese
No5 cylinder very oily, piston face OK
No6 cylinder nice and clean, little fuel residue as in No1
Too much work to refurbish the current engine, so will ask my son if he wants it for a project.
If not, I'll break it for the good bits and then start looking for another car
I feel very sorry that this has happened. I think that you must be feeling very low at this point. I can understand your feeling for not wanting to get into a project. I still think you should pull the head off and have a look. See what the compression is first. If it is completely gone in two of the cylinders which it probably is because water is coming out when you topped it off, then you might have a chance at something. Remember that you shut the engine off immediately. This is not like breaking a timing belt where the pistons start slamming into the valves in a "crash" engine, ie. hondas. You didn't overheat the engine so the head probably is not warped. Head gaskets don't last forever. When you look at a job in its totality, it can seem daunting. However, large jobs are almost, as in this case, a series of small often uncomplicated steps that in themselves are often easy. If you pull the head and look at the gasket, you might have a completely different opinion or viewpoint. Straight edging both mating surfaces might show no warping and cleaning things up and inserting a new gasket might be all that's needed. I have removed heads with their manifolds still attached to them (4 cyl cars). I don't know if this can be done with a 6 but t-tony might be able to comment on it. Your son can help you. It's surprising how a few hours steady work will get you down into the engine and give you a significantly cleared picture of the situation. Don't give up now. You now know the plan of attack to use and you can do it............FrankieI work away from home and am only there Friday night, Saturday and Sunday. I'm 60 now and just can't be arsed to be lying around on the garage floor. I like to drive my cars.
Many compression testers will record the highest pressure that is reached and freeze the needle at that point until you release it. Hook it up again and get in and crank the engine. Then get out and look at the guage. It it reads zero, hook it up to cly 1 or 6 that you said were clean. They probably still have good compression. If THEY read 0, then you'll probably need another person to watch the tester. FrankieDidn't actually do the compression test, as I previously said above, I turned the engine over a couple of times and it started leaking water. Also, my sons gone away for the weekend and it's not a one man job. ie I can't see the compression gauge from the drivers seat with the bonnet open, and I can't take the bonnet off on my own.
As soon as it started leaking water it looks a good bet the head gasket has failed.