Recent content by PaulO

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    DT40 4001 215171 Water pump repair

    Hi all, I need to determine the year of this model. I am getting returns of 1982 but not sure? It was not pumping water. Due to an oxidized bolt there is a spacer plate on which the water pump sits that cannot be removed until the bolt is drilled. i have never seent his set up before of having...
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    40RL71G - Not making full power

    A mate has an engine same as mine. He is making full throttle with the magneto plate at the stop position (full travel.) His coils are the green plastic covered ones and look in good condition. Points look OK and gapped .020" Engine does not run rough. A compression test has not been done but...
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    I forgot where earth strap goes 40RL71G

    Can someone tell/show me where th earth strap goes on this engine. My photos didn't show it up but I feel it was from one of the rubber grommet screws on the left hand side to the Lower engine cover? I am not sure where it was fixed to this either. Please help.
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    Lock/Unlock lever 40hp 40RL71G

    How many bends are in the lock / unlock lever ? The bends are slight. It seems as though it doesn't want to move much and does little when pulling the spring loaded locking device.
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    water pump 40RL71G

    I need advice on removing this pump housing. Screw head all broke off near the top. Corrosion is evident. Do I:Break the pump house to get to the screws stubs or is there some trick I can try? The pump housing is no longer available through factories... I think? Any ideas? Paul
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    What colour should my engine be- 40RL71G

    The power head is green, the leg is a dark blue and the tiller arm is grey. Can someone inform me please?
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    Cyl/Piston Wear issues-40RL71G

    My pistons show wear in the skirt 3.178" and 3.182" The lower cylinder bore worst case was .005" in excess of STD 3.187". By the time I buy OS Pistons (and I can only seem to get one of them ATM) and gaskets and bolts this could be a $500 job. Do I just stick it back together, forget about...
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    STD Bore - 40RL71G 40HP

    Can anyone confirm the standard bore for this engine is 3.187"
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    Rings - 40RL71G 40HP

    Had experience in past with this site offering parts as per web page schematic/order form only to be told via email the parts no longer exist. Can someone confirm if I can still get part 2 STD rings...
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    What is this component in my 40hp 40RL71G

    When I took the power head off the leg I saw this clip sitting in front of the crank circlip. Close up Does any body know what this part is for? It looks like some rubber has perished off it? Is there a seal missing from the crank in the pic below? This is how I found it.
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    Just unseized my 40hp-Now What?

    Hi. Just picked up a 40hp 40RL71G that was seized. It would have been run with a ruined impeller so got hot. The plugs were oily - no appearance of rust. I filled both cylinders with fuel/ boat oil mix and let sit for a few days. #2 let go of its contents. #1 absorbed a little bit but held...
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    40hp tune up help

    Hi, Can anyone tell me what the timing should be set at for a 40EL71G S/N: 86788. Enquiring on behalf of a mate so I am not familiar with this engine type. Can someone post or link me to a picture of the power head. Thanks.
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    Universal regulator / Tachometer fixed

    Previously, I soldered a tach sync wire to one of the Yellow wires from the regulator. The most the tach would read was 3500 RPM. Today I disconnected the soldered tach sync wire at the terminal block (Right hand side) I made up a small jumper to run from the other yellow Stator wire (at the...
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    Engine Efficiency + exhaust back pressure theory

    This is purely a question on theory I would imagine an engine would run most efficiently at a certain RPM with the back pressure experienced from the exhaust. My 120HP exhausts from prop hub and the lower leg so I guess it has to turn over at mid to high RPM to build up the back pressure...
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    First run 120hp Force issues

    Ran the engine today in the river. It is surprising the amount of water it was spitting out compared to the muffs. I am happy about that. It ran cool too...approx 80? F. Someone correct me if this sounds too cool? ISSUES: 1. The tachometer runs upto 2500 RPM but no further. GPS says 67Kmh with...
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