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General Information

Name
Dolphin 34' Class A Motorhome
Year
1996
Make
National RV
Model
Dolphin M-834
Color
White
Packages
Banks Power Pack, Safe-T-Plus Steering System, Firestone Ride-Rite Air-Helper Springs
History
46,000 Miles, Multiple Owners
Bought this motorhome as a 460 educational project. I want to learn everything about this motor, and how it runs.

Modifications

Drivetrain
Banks Power Pack
Interior
Stock
Exterior
Stock
Audio
Stock
Lighting
Stock
Exhaust
Banks Power Pack
Suspension
Stock + Firestone Ride-Rite Air Helper Springs 5,000#
Wheel and Tire
Stock 17,000GVWR

Comments

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I am getting fuel in the oil, and excessive carbon fouling on plug 1, moderate fouling 2, 3, 4, 6. Previous owner changed plugs, wires, cap, rotor, fuel pump, oil, oil filter, fuel filter, fuel regulator, and added an in-line fuel rail pump. I am hoping that one or more fuel injectors are fouled and are causing excessive fuel delivery into the cylinder, causing fuel to contaminate the oil. Does anyone have any idea about why or how the additional rail pump might be causing a problem and if I should remove it?
 
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