Page 185 - REPOWER REFERENCE GUIDE (2020)

Manifolds and Elbows with Dry Joint
2. Tighten the pipe plug.

Description Nm lb‑in. lb‑ft
Exhaust manifold and exhaust elbow pipe plug 50 – 37
3. Models with closed cooling: Apply sealant to threads of hose fitting and install to exhaust manifold.

b a - Exhaust manifold
b - Hose fitting
c - Sealant applied to threads
a

c

31781

Tube Ref No. Description Where Used Part No.
Loctite 567 PST Pipe
9 Sealant Hose fitting 92-809822
4. Tighten the hose fitting.
Description Nm lb‑in. lb‑ft
Exhaust manifold and exhaust elbow pipe plug 50 – 37
5. Using new exhaust manifold gasket, install exhaust manifold to cylinder head. Tighten the fasteners.
Description Nm lb‑in. lb‑ft
Exhaust‑manifold‑to‑cylinder‑head bolt 51.5 – 38
6. Apply sealant to threads of hose fitting and pipe plug and install in exhaust elbow.

a - Exhaust elbow
b - Hose fitting
c - Pipe plug
d d - Sealant applied to threads
c

a d
b

31782

Tube Ref No. Description Where Used Part No.
Loctite 567 PST Pipe
9 Hose fitting and pipe plug 92-809822
Sealant
7. Tighten the hose fitting and pipe plug.

Description Nm lb‑in. lb‑ft
Exhaust manifold and exhaust elbow pipe plug 50 – 37

90-8M0149179 eng NOVEMBER 2018 © 2019 Mercury Marine Page 7B-7