mainfolds

I have mated the intake and exhaust manifold and as I was getting to install them to the block I noticed the ends that bolt to the block are not on the same plane. There is as much as a 1/16 inch difference. I prefer not to try and have a machine shop plane them due to $$$$$$. any ideas?
Thanks,
Thad

I did not know there was any play in the four bolts that hold the two manifolds together. I will try it. someone locally told me to double up the manifold gaskets. Has anyone tried this?
Thanks, Thad

There is some inherent play in the bolt holes, they are a clearance fit not a tolerance fit.  Frankly, you could clearance the holes even a little more (quite a bit actually, but within reason) if required to get two pieces to be a pair.

Is this a new manufacture Chi-Com replacement exhaust manifold ?

Lee

I had the same problem with the Omix-ADA exhaust manifold when I mated it to the original intake manifold. The mating surfaces where it bolts to the block were off 1/8"! I solved the problem by milling off the excess material on my mill. The manufacturers of the exhaust manifold should have come closer to OEM specs on this part, but didn't even try. An 1/8" is not even in the ballpark.

This is a reason that I try to avoid purchasing Omix-ADA parts. This is not the only instance where I have had to rework the crap that they supply. I guess I'm supposed to feel grateful that someone even attempts to supply an exhaust manifold that is even close to original, but it would be just as easy for the manufacturer to GET IT RIGHT as it would be to turn out something that doesn't even come close to fitting.   

Edited by SE Kansas 46 CJ-2A - 11 Feb. 2018 at 1:21am

I loosened the 4 bolts between the 2 manifolds and as suggested there was enough play that I was able to install them to the motor, seemingly with no gaps between the manifold gasket and block. Hard for me to tell if there is too much torque but it seems fine so far. I guess time will tell!!!
Thanks to everyone for the input.
Thad

What did you torque them to?

I think it is suppose to be around 30 #. I had trouble to get this high. It almost acted like the studs were turning and I decided to stop and see how it works out once I get her running.
Ted