1960 international b275 head gasket help

JoeV1973 · Nov 3, 2023

So I rebuilt a b275 diesel, engine bd144 it fired right up & ran great until I noticed the head gasket leaking (bubbles) I decided to take the head back off & do it right. I ordered a new head gasket kit & it came with 2 rubber o-rings. In another group an englishman told me my gasket was leaking bc I forgot the o-rings & told me in the UK they are all sold with o-rings. The kit I bought first had none. Does anyone know where the proper placement of these o-rings is?

I also added 2 photos from the englishman showing me where the o-rings go, problem is on one side of the block there is no water jacket there. I have 2 new gaskets, One does not even have a hole in that area (bottom left corner) should I put the 2 o-rings around the round water jackets? Can anyone help me with this so I get it right this time?

Nordic · Nov 3, 2023

I'm no expert on this particular engine, however, my Dad was working on one of these same engines at least 25 years ago and he had similar issues. I think what you suggested in your second to last question is exactly what you should do, placing the rings where they correspond both to the right size hole in the gasket and over water jackets. Should it say anywhere in the gasket instructions to not apply any kind of sealer, I would ignore that and as my Dad did all those years ago was to apply a thin layer of pipe joint sealer to both sides. The kind of sealer I'm referring to is what you apply to the threads of steel pipes for gas fitting. I bought my last can at Home Depot, called GASOILA. We've used this (or sealers for the same purpose in the pipefitting industry) on head gaskets for nearly 50 years and never had a head gasket leak. Obviously if you have a seriously warped head that would need to be addressed separately. Those copper gaskets are really good quality, I know Dad had to reuse one and still no leaks. Please let us know when you succeed.

used red MN · Nov 4, 2023

I have a concern with the dark spot on the edge of the 2nd sleeve from the left in your photo, circled in attached. Is the top edge of the sleeve lower in that area? If so it could be a problem. Another thing I will mention is that I hope you clean the liquid out of the head bolt holes if they are not open into the water jacket that can break the holes with hydraulic pressure when the bolts are tightened. Also you should have run a tap down in the threads. Buff the bolt threads wire wheel. I would use Copper Coat gasket sealer on both sides of that gasket. The manual I have also mentions alignment ferrels in 2 locations one at the front and the other at the back. This manual does not say anything about those O-rings. Oil the bolts with motor oil, threads and under the bolt head. Torque them in the proper sequence. After the engine had been run up to operating temp, pull the valve cover and retorque the head, reset the valves.

1960 international b275 head gasket help

JoeV1973

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Nordic

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used red MN

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