7MGE Head Gasket Replacement

69ho · 08-22-2013, 01:36 PM

Then if it is truly located with two dowels (I have never had one apart and cannot find any good illustrations) that tells me a couple of things. 1) that Toyota has very loose tolerances in machining the top of the cover surface and 2) in my case pulling the cover and trying to relocate will be useless. It is going to install on the dowels at the same location everytime. If I remove the cover and try to correct the surface off of the block, I will have to measure the current profile of that surface to know how to correct it. As I stated earlier, one end of the cover is at or very slightly below the block deck until you reach the middle of the cover and increases as you go from the center to the other end to approximately .010 to .020 above the deck (I have not made any measurements yet). That is going to be a challenging setup to be able to machine the part. Looks like it would be easier to correct while attached to the block so I can reference the block deck surface? Any comments?

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08-22-2013, 01:36 PM	#7
69ho Stock Join Date: Aug 2013 Location: Huntsville, AL Posts: 6	Then if it is truly located with two dowels (I have never had one apart and cannot find any good illustrations) that tells me a couple of things. 1) that Toyota has very loose tolerances in machining the top of the cover surface and 2) in my case pulling the cover and trying to relocate will be useless. It is going to install on the dowels at the same location everytime. If I remove the cover and try to correct the surface off of the block, I will have to measure the current profile of that surface to know how to correct it. As I stated earlier, one end of the cover is at or very slightly below the block deck until you reach the middle of the cover and increases as you go from the center to the other end to approximately .010 to .020 above the deck (I have not made any measurements yet). That is going to be a challenging setup to be able to machine the part. Looks like it would be easier to correct while attached to the block so I can reference the block deck surface? Any comments?