Quote:
Originally Posted by Jake Raby
Access though the IMS tensioner hole may yield some results, too.
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The tensioner linking the IMS to the camshafts for cycls 1-3? So far no luck through this hole because of the chain tensioner really restricts access. I might be able to get a vacuum hose in there.
Quote:
Originally Posted by Jake Raby
You can tear the engine down "on the half shell" and leave all of bank 1 together, only removing the exhaust cam sprocket bolts, locking the bank 1 cams in place. This allows complete disassembly of bank 2, and access to the IMS region to fetch this fastener, without total engine disassembly.
We do this all the time in development, changing components for back to back tests.
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I'll need to do more research on the engine to visualize what you're describing. How I'm interpreting this is
1) drop out the engine
2) lock the bank 1 cams in place (left side of car when looking at it from the back) after removing the sprocket on the exhaust camshaft. (not sure why removing the sprocket is necessary if that bank will stay intact)
3) [additional steps?]
4) end up with the piece pictured in Jamesp's post below detached--half of the block--allowing easy access to the IMS area.
Quote:
Originally Posted by Jamesp
Don't give up yet, you might be on the one yard line! The fastener is in the "U" shaped channel in the lower right hand corner of this picture. Use a strong magnet from outside the block to drag the fastener up the ramp out of the channel. This would be dragging "into" and "up" for this picture. Once dragged up the ramp it's no longer in the channel and you might be able to see it with your endoscope. Pull it towards the center of the engine. If it drops from there you can grab it again through the aluminum with magnets from inside the oil reservoir area, in fact having magnets taped to the area you want the fastener to go might be a good move. Then drag it up to the large hole under the cylinders and into your hand. When you get this bolt out you need a vanity plate that says "986FISH".
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I'm going to attempt the strategy above and report back. New magnets arrived last night. I should be able to demagnetize the IMS bearing at least if I end up accidentally magnetizing it.
Dropping the engine out sounds like a recipe for even greater calamity/expense/fun, so I'm holding off on that until need be.