How to Assemble Exhaust Manifold for John Deere PowerTech Engine

Here is an instruction show you guide on how to assemble exhaust manifold for John Deere PowerTech 9.0 L OEM diesel engine.

How to Assemble Exhaust Manifold for John Deere PowerTech Engine

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Assemble Exhaust Manifold
1. Install 6 port liners (A) to cylinder head.
NOTE: Guide pins and port liners will keep gaskets from rotating during assembly.
2. Install 6 guide pins to cylinder head in top cap screw hole of each port.
3. Install gaskets (B), with tab pointing down, over guide pins and port liners.
NOTE: Position one sealing ring joint at 3:00 position and the other at 9:00 position as viewed when mounted on engine.
4. Install two new sealing rings (C) to front manifold. (D)
5. If necessary, install pressure port fitting (E) into front manifold.

Pressure Port Fitting to Front Exhaust
Manifold—Torque…………………………………………………..20 N•m (15 lb-ft)
6. Install rear exhaust manifold (F) to front exhaust manifold (D).
7. Install exhaust manifold assembly over guide pins and port liners in cylinder head.
NOTE: It is not necessary to use an anti-seize compound on new stainless steel exhaust manifold cap screws.
8. Apply PT569 NEVER-SEEZ® Compound, only to cap screws being reused. Install 6 cap screws (G)
through spacers and into bottom holes of exhaust manifold and into cylinder head. Tighten finger tight.
9. Remove guide pins. Install 5 cap screws through spacers and into top holes finger tight in exhaust manifold and cylinder head.
IMPORTANT: The long bolt (H) on the exhaust manifold assembly CAN NOT be reused.
This bolt is not stainless steel and is thus affected by the exhaust heat.
10. Install one long bolt (H) into hole through thick portion of exhaust manifold into cylinder head finger tight.
NOTE: Be certain exhaust manifold gasket tab is facing down, under bottom cap screws, as shown.
11. Tighten 12 exhaust manifold capscrews in the order  shown to specification


More repair case for John Deere,please refer to:John Deere Trouble Repair

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