Bamford SD1 Diesel Engine take-2

As cold starts are still tricky, requiring a lot of cranking, this is a hot start. The engine is still suffering from an internal water leak with a slow but steady drip from the base of the push rod tunnel (definately not the base of the cylinder liner). I tried some CarGo block sealant which initially seemed to stop the leak but it's now leaking again. I'm planning on buying another three bottles, running it for about three hours to get it really hot, and then draining the solution into containers so I can re-use it if the leak persists. If you know how to cure this leak on these engines please let me know.

Category:

Science & Technology

Tags:

• bamford
• sd1
• sd2
• sd3
• sd4
• diesel
• engine

[MidBrunswickGreen]

@enginelover1 The water leaks straight into the sump and turns the oil into mayonaise.

[enginelover1]

@MidBrunswickGreen Remember me where does the crack leads? Where does the water go if it passes trough the crack?

[MidBrunswickGreen]

@enginelover1 Thank you again :) I think I could run it for a little bit longer, but knowing how hot the water used to get there's no way that I will dare to run it for longer than that hahahaha

[enginelover1]

@MidBrunswickGreen The thing you want to remember is, the engine is not on load! An angine on load doesn`t raise the tempreture! When you give it some throttle that moment slowing down (engine brake) the engine is colling because there is no burning fuel and the hot air from inside go out. On a car you see this when you are going downhill on a gear with no gas, the tempreture drops!!!!!!! The longest time I rann my engine was for about 75mins.

[MidBrunswickGreen]

@enginelover1 Thank you for your advice and I'm amazed that you can run your engine for such a long time without coolant !!!!! I guess it would be safe to run the engine for longer than two minutes but I just dare not risk damaging the engine.

[enginelover1]

@MidBrunswickGreen No you can run it more than 2 minutes. My VSO run it when I feel the head a bit hot. It runs for about 45minutes, it depends on the revs I gave it. Slow speed it runs for a 60minutes.

[MidBrunswickGreen]

@enginelover1 I only run the engine until the exhaust pipe becomes hot, so about 2 minutes at a time. I've thought of filling the cooling system with oil, but think it's best kept clean in the hope that one day I will find a paint that will seal the leak.

[enginelover1]

@MidBrunswickGreen Thanks for watching my videos. On my ruston 2vso, I din`t use water because it is too rusty from the inside so I fill it with burned oil. I would leave it like date your engine, run it for short time, like my vso.

[MidBrunswickGreen]

@enginelover1 The push rods are internal and the water appears from the base of the 'tunnel' that the rods pass through, therefore I'm suspecting a crack in the block.  When I stripped the engine it was clear that it had received a large external frost dammage repair, but there is no easy way of getting to the crack inside of the 'tunnel'. I've had a quick look at your video list and enjoyed your R&H video.

[enginelover1]

@MidBrunswickGreen From where the water leaks, from the gasket or cracked cylinder head? Did you seen my engines?