2.3 exhaust/cooling question.

[wecoyote]

In diagnosing water going into the crankcase, I found that when on the muff it's going into the cylinders. I know this may be a cracked manifold from a freeze, but also yesterday found that a bolt (one of 4) at the riser to manifold junction is broken.

My theory on getting lucky is that this allowed the gasket from exhaust and water (and some separation) to corrode and allow water into the exhaust.

Am I onto a possible cause?

Thanks to all

Coyote

 

[HT32BSX115]

Re: 2.3 exhaust/cooling question.

If you're talking about the bolt that connects the elbow to the exhaust manifold, yes.

water that gets back into the exhaust will run into the combustion chamber thru an open exhaust valve after shut down. If it's getting into the engine while running, it will depend on how the manifold is set up. If it's an "all in one' manifold (intake/exhaust are integral) then it could be coming into the intake because the manifold is severely cracked cooling water is getting to the intake...

I can't remember what you have.....when you start a new thread it always good to post your engine & drive model number ( or better yet put it into your signature and it will be in all your posts!)

In diagnosing water going into the crankcase, I found that when on the muff it's going into the cylinders. I know this may be a cracked manifold from a freeze, but also yesterday found that a bolt (one of 4) at the riser to manifold junction is broken.

My theory on getting lucky is that this allowed the gasket from exhaust and water (and some separation) to corrode and allow water into the exhaust.

Am I onto a possible cause?

Thanks to all

Coyote

 

[wecoyote]

Re: 2.3 exhaust/cooling question.

If you're talking about the bolt that connects the elbow to the exhaust manifold, yes.

water that gets back into the exhaust will run into the combustion chamber thru an open exhaust valve after shut down. If it's getting into the engine while running, it will depend on how the manifold is set up. If it's an "all in one' manifold (intake/exhaust are integral) then it could be coming into the intake because the manifold is severely cracked cooling water is getting to the intake...

I can't remember what you have.....when you start a new thread it always good to post your engine & drive model number ( or better yet put it into your signature and it will be in all your posts!)

You're right in that there was not enough info in the subject line to determin what I have. It's an 1987 OMC 2.3 Cobra (Ford engine).

I like the suggestion about adding it to the sig.