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    Mercruiser 454 Oil/PS Cooler Replacement Question - Loss Of Oil

    Helping out with a friends boat. Don't have the engine serial number handy, but the boat is: 1990 Wellcraft Scarab 28ft. 454 OE engine. Raw water cooled I'm sure someone has replaced the oil/ps cooler. Looking for any tips/write ups/gotcha's/ on replacement. Its located underneath the port side...
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    Oil leak near starter? What's behind starter?

    I'm not as familiar with the MPI, and I'm still learning on my 4.3L carb, but I might be inclined to replace the PCV valve and check the hose as well. It's cheap and easy. Mine aren't serviceable on the carb motor, but I believe the MPI motor they are. You mentioned it really shows a leak at...
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    Oil leak near starter? What's behind starter?

    My guess is it’s probably coming from higher up, like the valve cover. More likely than a rear main. If you have any suspicion that it is the rear main though, you can remove that plastic cover at the starter. That’s your flywheel inspection cover. Your flywheel would have signs oil on it if it...
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Quick update. Haven’t been able to get the clear hose yet from the hardware store. However, I did go ahead and put in a new 160* thermostat because I had it on hand. Seems like it had never been replaced so it was well over New thermostat didn’t help. Did get a look at the check ball valves...
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    Untangling Previous Owners Rigged Wiring

    Perfect! Thank you! Any ideas what the Orange/Pink wire with the ring terminal is for? Assume the other two are grounds, but they are all bundled together in the harness behind the carb.
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    Untangling Previous Owners Rigged Wiring

    2007 Mercruiser 4.3L TKS S/N# 1A041404 While I continue to diagnose my slow overheat at idle issue, I'm also in the process of straightening out some wiring issues from a PO. I've posted a picture and need help identifying a couple of wires. Forewarning, I am new to boats. I'm not an idiot...
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Will do! I assume you mean to drop the short piece of clear hose between the current line from the outdrive to the thermostat housing, not try and replace the whole bit just to watch for air. So a piece of hose roughly the same size, barb to put them together, couple of clamps. If I do see...
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Went and started the boat and let it idle in the slip for about 20-25 minutes. When I first turned the key to on, the alarm sounded as usual for the test. I decided to wait a bit to see what would happen (suspecting the alarm needs to be replaced as well) after about 5 or 6 seconds of the...
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Got it. Going to head down, start the boat, and run a couple of tests while it's warming up. Will post back with findings.
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Was thinking the same thing here as well. I'm going to go start it in just a few. Will play with the trim at various times while warming up to see if it goes off. Where exactly is this "pee hose." I've read some other posts mentioning this as a check. Not sure which hose it is. I have an IR...
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    Engine Alarm At Idle, Then Slowly Fades Out. Possible Idle Overheat

    Sorry for the long post, just trying to give as much detail as possible up front. 2007 4.3L TKS (2008 deck boat) Serial# 1A041404 Just put the boat in the water about a week and half ago for the start of the season. Picked this boat up last year. 1st boat, so I am reading and learning as...
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    Tahoe Deck Boats and Rainwater

    Does anyone know for sure how rainwater (or any other deck water) is supposed to drain on Tahoe deck boats? I have a 2007 Tahoe 215. From what I can tell everything drains into the bilge which seems a bit silly. Right after I bought the boat, I left the cover off in a rain storm. I found a...
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    New Tahoe Owner - 1st boat - Already Feeling The Woes!

    New to the forum and boats! Just picked up a 2007 Tahoe 215 I/O. 4.3L Mercruiser. I’ve always done a a lot of car work, moved to a lake recently and decided to buy a first boat. The 215 fits our family well. I like and don’t regret buying it, but I’m already feeling the woes of boat ownership...
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