why are these related?

[fiddlybits]

There is something wrong with both pictures and there is a relation.

Do you know what it is? (I'll wager Brent and Tom know)

 

[Gary WA]

washer on backwards and gasket? Just no good!

 

[fiddlybits]

Bingo!
the thick washer is on backwards. (Crown should be against nut / concave towards engine.
As a result two things happened. The washer could not "rock" to place even pressures on the manifolds and, the nut backed off allowing burn through on the gasket.

 

[Marco Tahtaras]

Did the manifold mounting ears survive? I know someone that broke an ear of a NOS exhaust doing that!

 

[fiddlybits]

Manifolds were undamaged. (But fithy)

 

[C26Pinelake]

There is something wrong with both pictures and there is a relation.

Do you know what it is? (I'll wager Brent and Tom know)

Definitely two of the resident experts ! If Brent and Tom don't know it you don't need it !
Wayne

 

[Tom Wesenberg]

Definitely two of the resident experts ! If Brent and Tom don't know it you don't need it !
Wayne

I'm no expert. I'm just trying to learn enough to graduate from this school of hard knocks.

 

[C26Pinelake]

I'm no expert. I'm just trying to learn enough to graduate from this school of hard knocks.

Yes and modesty is one of your fine characteristics!
Wayne

 

[Jwilli]

Good post and replies. I am learning from all the comments, that it is very important to pay attention to small details. Thanks for all the information.

 

[5window]

Just the sort of thing you might learn from experience if you could figure out what went wrong. Excellent post for those of us ignorant of this pitfall. Thanks.

 

[fiddlybits]

I went to the School of Hard Knocks also........school colors are black and blue.

 

[WestCoast]

darn you easterners get up early, by the time us left coasters get up and on here you guys have already answered all the posted questions, I noticed the gasket being bad right away, it took a while before I noticed the washer was on backwards, you guys are good