Thread: Big Problems with my 540

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Aluminum heads, fuel injected. I believe the nut came loose up top and it snapped at the base of the MAF sensor and fell right in. I ran the magnet down all four cylinders of that side.
I'm assuming everyone would agree I need to pull the head off of that side? I've never dug into bent valves. Repairable or are the heads junk?

Originally Posted by walteman

Aluminum heads, fuel injected. I believe the nut came loose up top and it snapped at the base of the MAF sensor and fell right in. I ran the magnet down all four cylinders of that side.
I'm assuming everyone would agree I need to pull the head off of that side? I've never dug into bent valves. Repairable or are the heads junk?

Uhhh, yeaaah, pull the heads; as to repairable, depends on how much damage has been done.

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Originally Posted by walteman

Repairable or are the heads junk?

There's no way to know until you pull the heads. You could be looking at anything from an easy fix to one cylinder/chamber, replacement of one head, or a full rebuild if it wedged into a cylinder wall and gouged the bore. Once you have it down to be able to pull one head, it'd be silly not to pull the other one too, to eliminate any questions. Like Jerry said, on an air boat it should be easy access? Just don't drop stuff into the lake!