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    Recirculator Hose Failures OMC

    I have experienced four recirculator hose (1/16”) failures on my 1986 Johnson 150 over the past 18 years. All four occur in various locations where the hose attaches to one of the barb fittings on the intake manifold check valves. The failure is always a slit along the hose from the hose end...
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    No Oil Alarm Occurrences on Rebuilt 1986 Johnson 150 J150TXCDC

    Very good point that I should have thought of prior to rebuilding the air motor and fuel diaphragm. I should have just replaced the the VRO since it is 13 years old and I was rebuilding the powerhead. I just ordered a new OEM VRO from "Leader's RPM". Faztbullet, as always, thanks for your reply !
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    No Oil Alarm Occurrences on Rebuilt 1986 Johnson 150 J150TXCDC

    VRO No Oil Alarm Occurrences after VRO preventive maintenance rebuild with OMC/BRP Air Motor and Gas Diaphragm rebuild kits. No previous problems with VRO (4 wire) since it was installed in 2008. The No Oil Alarm occurred randomly four times over 60 gallons of fuel burn. Occurs shortly after...
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    Johnson 150 Rebuild/Remanufacture Guidance

    Yes, Jason at Jay's Block Shop was great to work with, his service was quick and he did a very nice job on my block. I was impressed he was able to clean up my cylinder scoring by only going .020" oversize.
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    Johnson 150 Rebuild/Remanufacture Guidance

    Backed the boat down the ramp with my home made test prop, hit the primer five times, turned the key and it fired right up! While this was what I hoped for, I was amazed it did not take a bit of coaxing to get her running. When the initial puff of smoke cleared, the tell tail was streaming...
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    Johnson 150 Rebuild/Remanufacture Guidance

    Alan, I already set the timing using the Joe Reeves method in the driveway. Actually, I didn't have to move the current setting as I confirmed I am 2 to 2 1/2 degrees retarded. Using the test prop, at what point in the break in period do I run it up to 5500 RPM and set the WOT timing...
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    Johnson 150 Rebuild/Remanufacture Guidance

    I will make a test prop by removing an inch from the end of an old 14 1/2 x 19 aluminum prop. My Service Manual states the following for Break-In Procedure: First 5 - 10 minute, operate engine at a fast idle. Remainder of First Hour: Engine should be operated at boat planing speed, but not over...
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    Johnson 150 Rebuild/Remanufacture Guidance

    I plan on mounting my powerhead this weekend and am very close to initial startup. Please review my start up plan below and provide guidance. I realize, it is what I don’t know that will kill me! So what am I missing? Check spark on all cylinders using a 3/8” gap (in driveway). Check linkage...
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    Johnson 150 Rebuild/Remanufacture Guidance

    I have an old prop (14 1/2 x 19 pitch) I can sacrifice. A Google search shows a guy maintaining the blade end shape, but removing 1/3 of the blade length on all three blades. Is this what you suggest? Should I target a specific end diameter?
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    Johnson 150 Rebuild/Remanufacture Guidance

    I was planning on going to 50:1 in the gas tank for the first 25 gallons. Especially since I also rebuilt my VRO. Is this a good ratio and plan?
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    Johnson 150 Rebuild/Remanufacture Guidance

    OK, I'll switch out the XD100 and fill my VRO tank with XD50. Is it ok to switch back to XD100 after one VRO tank full (2-3 Gal.) for less smoke and less ash/carbon?
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    Johnson 150 Rebuild/Remanufacture Guidance

    Oil for Engine Break In: Over the past few years I have been running XD100 (100% synthetic) in my VRO tank. Is it OK to use the XD100 for the engine break in period?
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    Johnson 150 Rebuild/Remanufacture Guidance

    Thanks for the clarification. I wasn't aware of this tool. In fact, I'm surprised I didn't come across it when I was fighting with flywheel removal. This appears to be the Lisle version I found via a Google search (should have searched before asking for clarification). I will also look at...
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    Johnson 150 Rebuild/Remanufacture Guidance

    Havoc, thanks for your suggested tip. I am getting close to powerhead installation. It's been a long drawn out rebuild, but free time to focus on it is a bit tough right now. By "flywheel turner" I have a strap wrench to hold the flywheel. Is that what you are referencing? If so, I will...
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    Johnson 150 Rebuild/Remanufacture Guidance

    OK, I think I've got it. The timer base groove gets cleaned and new outboard lubricant applied. The clean retainer ring is snapped in the groove. The outboard lubricant ensures free rotation of timer base on retainer ring. The outside diameter of the bushing and the recessed lip in the...
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    Johnson 150 Rebuild/Remanufacture Guidance

    But it seems they refer to what you call the split plastic ring on the bottom of the timer base as the "retainer ring". The step after the Moly Lube step says: "Lubricate the timer base retainer ring (C) with Evinrude or Johnson Outboard Lubricant." then "Lightly compress the retainer ring (C)...
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    Johnson 150 Rebuild/Remanufacture Guidance

    Timer Base: I am reinstalling the timer base and my service manual tells me to: "Apply a light coating of OMC Moly Lube to the crankcase head bearing surface and the timer base bushing." Is the crankcase head bearing surface the machined outside diameter of the crankcase head that the timer base...
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    Johnson 150 Rebuild/Remanufacture Guidance

    The No. 33 Orifice Idle Air Bleed? Smaller or larger? No. 32 or 34 ?
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    Johnson 150 Rebuild/Remanufacture Guidance

    Just to clarify, my engine is stock (except for the .020" oversize bores) and I just purchased the Chris Carson Sport Reeds, no "stuffer" gaskets. Per the parts break down, I should have: High Speed Orifice No. 56C Orifice No. 29 Orifice Idle Air Bleed No. 33 Which ones do you recommend I...
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    Johnson 150 Rebuild/Remanufacture Guidance

    Carburetor Questions: Although this engine was running well even with a few scored cylinders, it has been 9 years since I rebuilt my carbs so I purchased three rebuild kits. In addition, although the original OEM reeds do not appear to be chipped, I can see light around a few of the reeds. I...
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