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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Shift Interrupt Switch doesn't seem to influence the process, I can disconnect that entirely and there is no change. Basically the Engine Turns Off and almost starts.. even appears to show Oil Pressure getting up to 40PSI and above but doesn't run ongoing.. I had a bit more of a fiddle and...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Bit of an update.. Replaced the Distributor Cap, Ignition Sensor and Rotor with genuine QuickSilver Parts.. Boat Initially sprang to life after about 2-3 cranks and ran for around a minute until I attempted to slip into gear again and cut-out. (Figured by Alignment is still out). After this...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    It's a good learning curve... and the benefit is that obviously I have a much better idea of how things are put together when it comes to troubleshooting in the future, so in some ways its a good thing. Honestly the most frustrating thing is just the waiting for parts to arrive.. Everytime you...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    There's actually a better Battery with Threaded Posts next to it (Optima Marine etc) however that's the designed 2nd Battery.... I'm doing a bit of an "Electrical Engine Audit/Refit" now with New Genuine Disty/Rotor/Sensor etc.
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Haven't completely solved this one yet... But did the "Air, Fuel' Spark" test and saw Fuel flowing into Carby by disconnecting Fuel Line and running into Small Bag.. Air seems fine based on Flame Arrestor being ok.. Followed some Wires back to Battery and found these wireless disconnected...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    I'll try and take a look. I've tried adjusting the Throttle Cable today and felt like I had it in a good spot.. But now the Bloody Engine won't start.. Even the usual Forward/Backwards etc reset procedure to override a Gear Box Based Stall isn't working... It's 8pm Melbourne, Australia...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Ok... after some further ready of the schematics we might have managed to determine our problem. Because when we pulled our Lower Unit and all the Water Items were melted etc we didn't see/know how it was put together. Basically we were running the Wrong Plastic Joiner Hose between the Upper...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Stresspoint bit confused about this O-Ring you're referring to.. I have the Alpha One Gen 2 Unit that looks like the Image Below (This isn't my particular unit... just a similar image for same unit).
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Hence why I'm bought the genuine QuickSilver Kit now... Not aftermarket.. That was just what I had originally.
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    I've purchased the complete kit below when we replaced the Impeller. https://marinepetrolparts.com.au/products/mercruiser-water-pump-repair-kit-817275q05-replacement Obviously it's not the easiest process to confirm the Water Hose has connected with the Internal Receptacle, but definitely...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Guys: Just an update again now... I've managed to get the Boat all back together with a bit of a delay as I didn't realise I needed Riser Extensions (Which I needed to get shipped to me). Anyhow Boat Engine is all back together and starts and runs well.. Idles fine. I've got 2 remaining...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Just an update guys: I've replaced Intake Manifold/Head Gaskets and Compression is still low on Cylinder 3. Others have come up to around 120-130 PSI... Cylinder 3 is still 60PSI Unfortunately. I'm a bit up in the air about the Next Step etc... Seems a little pointless fitting the...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Stresspoint: I believe there is an issue with the Impeller on the Leg because there isn't any flow.. We will be rebuilding that tomorrow.. Can't see any signs of water that I can see..
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Hello Guys: Todays Updates... I've had an inspection camera down both sides of the Exhaust Y Piece/Bullhorn and they appear clear. I've flushed the Bull Horn with Water and Flow is good out the rear of the Alpha Drive Unit. Not saying this is definitive, but its the best I can do at Home...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    So I've had the Right Side of the Engine off today... Flappers are completely gone.. even the housing that Holds them in place has melted and damaged. Exhaust Manifold itself looks ok, but risers have a significant crack on them. At this point I'll be moving on to Compression Testing... but...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Thanks for all your replies. I'm just waiting on a number of parts etc to be delivered including my Compression Test Gear (My Old Set was Broken in a Move). I will post a reply once I have an update.
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    So when the Boat overheated, I could see Smoke Rising from the General Surrounds on the Engine... their didn't seem to be any particular place it was coming from.. just seemed like Burning Oil type Smoke from everywhere. When I first attempt to Start the Boat after 24 hours or so... it will...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Boat has been Fresh Water from what I have been advised... Hasn't had a lot of outings in last 4-5 years. I've been advised the Leg was replaced under Insurance Claim 2 Years ago.
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    I definitely believe there is an issue with the Impeller.. I've order that from marineparts ex Brisbane and it;s on its way down for a changeover. I've tested the flow around the Engine with the Water Pump Hose Removed and Running a Garden House into the Disconnected Hose... Results in Water...
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    RE: Issues with Mercruiser 5.0 LX 4 Barrel Carb

    Good Evening from Melbourne, Australia. I've got a Bayliner Ciera 2355 which is new to me this Summer. (Mercruiser LX 5.0 4 Barrel Carb with Alpha One Gen 2 Leg) Initially ran fine but managed to seem to have some Foam Stuck in the Propeller after running for 3 hours on a Local Freshwater Lake...
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