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    Coupler alignment

    Dropped in the new motor (5.0GXi) and trying to align the coupler/engine to the outdrive (SX). Right now, after some adjustment, the bar slides in like butter, but there are still heavier lines at the 3-oclock position. How do I adjust for that location? I know how to move it up or down, but...
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    Any reason I couldn't run the engine without the drive attached?

    Thanks all. I couldn't see an issue, but things have snuck up on me before that I missed and I didn't want to ruin a brand new motor.
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    Any reason I couldn't run the engine without the drive attached?

    5.0 GXI with SX-C1 drive. I have the new motor put in and wanted to be sure I have everything hooked up correctly and its ready to go and runs before putting the drive back on in case I have to pull it back out for some reason. I have the hose connection on the raw water intake hose going to...
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    Volvo penta engine tag missing numbers

    You might look on the back of the block by the oil pressure switch/oil filter adapter/oil filter. The v8's have a metal tag there with the engine info. Might see if yours does too.
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    Missing hole under water pump

    That was my thought, but just couldn't figure out why it wasn't there. I have never seen a chevy block without this hole. Some car forums seem to indicate it is to relieve pressure during cold starts when the thermostat is closed. Probably not relevant to marine where we have the bypass in...
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    Missing hole under water pump

    I am transferring my water pump from my old block to my new block. Both are 878 castings (5.0GXi motor), but my old block has an extra hole for the water pump that the new block does not have. Is this an issue? The water pump has the hole. The old block in the pics is red. The new one is...
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    Volvo diagnostic port

    Mine was attached to the bracket on the ecm. It was on a dummy plug that had to be disconnected to access. It will most likely be within 12 inches of the ecm.
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    Vovo Penta 5.0 osi

    My oil pressure switch went out on my 5.0osi motor. Pressure was good as Indicated by the gauge, but the switch down by the filter went bad causing the ecm to think there was no oil pressure. I belive the motor would still run, it just would not go above 2000 RPM or so. It is easy to check as...
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    Setting engine valves

    I'm not sure what besides the lifters would make them adjustable. The lifters are hydraulic and compress while doing the final 1 turn.
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    Setting engine valves

    Yes, it has hydraulic roller lifters. Went with the manual and what seems to be the more popular option and set them at 1 full turn. Thanks for the help.
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    Setting engine valves

    This is for a 5.0Gxi motor. Typical 305 Chevy vortec engine. I am setting the valves after a rebuild. I have seen (including different posts here) 1/4 turn, 1/2 turn to 3/4 turn, and the volvo manual says 1 full turn past zero lash. Any consensus as to the "correct" adjustment?
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    Confusion on 5.0OSi-E motor

    My theory was if the knock sensor was faulty, it would not detect the pre-ignition eventually leading to the engine chewing itself up. Not sure how 2 work. Is it a backup system or does one detect one side and one detects the other? I'm not sure what else would lead to the noise. The other...
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    Confusion on 5.0OSi-E motor

    When you say "this website", are you referring to iboats.com?
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    Confusion on 5.0OSi-E motor

    Thanks. That is identical to the one in my manual. Does your engine have 2 sensors?
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    Confusion on 5.0OSi-E motor

    I have a 5.0OSi-E motor in my Regal. My understanding is that this motor is identical to the 5.0GXi-E with the only difference being that the OSi uses the XDP outdrive while the GXi uses the SX outdrive. Therefore, everything should be the same for mine as a 5.0GXi. Although a google search...
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    Trouble shooting low WOT RPM - timing on the 5.0OSi

    That is all it is achieving. At some point, it has gone to 4990 (according to the ECU). My normal max is 4400-4500. Nothing on the top 40% of the throttle. Maybe that is normal for an MPI motor. This is the first one I have had so it may just be getting used to how this motor performs...
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    Trouble shooting low WOT RPM - timing on the 5.0OSi

    It maxes out at 4400 RPM normally. I think the 4600 was with the 15 MPH wind. So it normally maxes out at 4400 RPM. I can lower the throttle from full to 60% and there is no decrease in boat speed or engine RPM. It just seems sluggish out of the hole and I have never had a boat that you...
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    Trouble shooting low WOT RPM - timing on the 5.0OSi

    The boat was not running when I bought it. It had the 4.3L V6 in it when I got it. IT was trashed from salt water. I found this larger motor already rebuilt for about what it would cost me to repair and rebuild the old motor...plus I get some additional horsepower. The rebuild was done by a...
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    Trouble shooting low WOT RPM - timing on the 5.0OSi

    The plugs shown in the picture were NGK I think. They were the recommended ones from the manual. I wasn't 100% confident in them so I replaced them again this year with AC Delco 41-101 iridiums. No change. And, yes the motor is MPI. Same as the 5.0Gxi motor. Thanks.
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    Trouble shooting low WOT RPM - timing on the 5.0OSi

    The start of this can be read here: https://forums.iboats.com/threads/5-0-osi-e-low-power-unable-to-hit-rpm-wot.725345/ still trying to figure it out.
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