Service manual TWC (Downpipe) Remarks Confusion

[naafl5]

Reading through the service manual a member posted on here a while back.

The service manual says that the 1.5L civic needs to have its upper (turbo-side) gasket replaced on but not the 2.0L (FL5) Civic when replacing the downpipe.

Seems kinda odd that the smaller engine needs a gasket swap and not the large one?
Additionally, the torque specs are lower on the upper (turbo-side) bolts/nuts.

Hoping others can shed light on why and if I'm even reading this correctly.

Pics attached for reference.

1.5L Specs:

2.0L Specs:

Sponsored

 

[naafl5]

Also where can I get accurate part numbers for these things along with their respective nuts and bolts?

 

[GV27]

You’re looking at the wrong information in the manual, which is far too easy to do with the pdf. That’s partially why I ended up purchasing a subscription for the full manual. So much easier to find exactly what I need. It was 60$ for 4 years of access through Mitchell 1 diy, which I think is great value.

The table you showed is for a 2.0L non-turbo engine.
This is the table for the k20c1 - note that some of the torque specs are different.

This table should only be used for torque specs reference. You should look at the procedure diagrams and instructions for the full details. The diagram shows that the gasket is supposed to be replaced.

And here‘s the procedure details:

 

[naafl5]

I absolutely love this community.

@GV27 You are a rockstar. Thank you!

Sponsored