Express 3500 V8-6.6L DSL Turbo (2008)
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Place a clean rag over the bore on order to collect the excess fuel.
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Bump the engine over in order to flush any debris out of the regulator bore.
Installation Procedure
Important: If the pressure regulator is being re-used, check the O-rings for damage. If the O-rings are damaged, install NEW O-rings.
1. Lubricate and install NEW O-rings onto the regulator. Lubricate the O-rings with clean, NEW engine oil.
Important: If the regulator is installed at an angle the O-rings may be damaged, resulting in possible fuel leakage.
2. Install the fuel pressure regulator (1).
Notice: Refer to Fastener Notice.
3. Install the 3 fuel pressure regulator screws (1) using a T25 TORX(R).
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Tighten the screws a first pass to 4 N.m (35 lb in).
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Tighten the screws a final pass to 7 N.m (62 lb in).
4. Install the distribution block hoses to the distribution block.
5. Position the distribution block hose clamps.