What's the torque spec. for exhaust Y pipes to the manifolds. I did 30 ft lb and they leak a little. My Y exhaust pipes don't come with gaskets they have flared ends. It was ok before I removed the exhaust pipes to change the oil pan.

 

I don't know that there is a specific tq spec...make sure they're seated correctly and tighten them down even more if you want. Or you can leave them and let them work in a little and retighten them about 100 miles later.

 

Its been 100 miles now and i tried torquing to 40 lbs and its still leaks on the drivers side. I don't know how much more i should go?

 

34 lbs for the nut is the max.

if you are at 40 and it leaks than maybe not set properly.

 

so unbolted them and start over?

 

worth a try.

 

Make sure the pipe end is sitting on the manifold cone correctly - you may be uneven and exhaust may be sneaking past one side...don't forget to tighten the bolts evenly as you go on either side (like you would with setting a manifold gasket).

Also check for cracks or damage in the area and to the ball/socket area (the connection points).