For the second time in 5 years I have another cracked exhaust manifold. The first time the front runner broke clean off, this time it is a crack running down the center of the middle double runner towards the head pipe flange. Car is getting louder every time I drive it so I have taken it off the road for now.
Parts are ordered and on the way from Don T @ p1800.com, they should be here today. I will try to get some pictures and update on progress of the R&R of the intake/exhaust manifold gasket as well as the replacement of the cast iron itself.
Update****
Well bad news all around, it seems the cause of the broken manifold is a lean condition which makes everything run very hot. The cause of the lean running is a cam that has started to wear out. The cam lobes are eroding away, mileage on the car is 218,000 or so. I have it from a very good source I will be pulling the engine and rebuilding to fix. Anything I do now will be money wasted and could lead to worse problems.
The method for determining is a bit detailed but I will put together the steps and post here soon for anyone else who may be in the same position
Not a good day for the Volvo today.
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