Are the $20/$30 thermometers on amazon any good, or should I opt for a better one? I don't have a lot of use for one outside of this. Where should I measure the temperature?
I don't think it's the power steering cooler. I'm pretty good about cleaning it out every year. I don't think there's much I can open on the heat exchanger. I've never cleaned out the seawater pump since I've owned the boat (2019), and I'm not sure if the previous owner did. I think that's my...
My Mercruiser 5.7L MCM SN 0F598365 got a little hot this summer most of the times I ran it. It never overheated, but it was definitely in the hot range. I have a closed cooling system, and I replaced the impeller and housing at the beginning of the season. I just took off the exhaust risers, and...
I have a Mercruiser serial number 0F598365. It was starting hard, so I went to do the timing. It appeared to be off by 4 degrees, so I corrected it. It’s starting easier now, but I’m still not sure if I set the timing properly. I can’t find a purple and white wire to ground to set base timing...
I have a 1999 8hp 2 stroke SN 0G765923 that I took the LU off, and now I can't get the shift shaft to shift in to neutral and reverse. When I spin it clockwise, it gets to a point where it stops. Is the cam somehow spun out of the proper alignment?
How do I get the shift shaft properly...
The motor is a 1995 2 stroke 8 hp Mercury SN: 0G765923 . I got this motor as a kicker on a boat I bought last year. When I changed the oil for wintering last year, I saw a very trace amount of water in the gear oil, but during pressure tests it maintains pressure, so I thought it must be because...
I have 1995 Sea Ray Overnighter that weighs in at 5,000 lbs with people full tank and gear.
I currently have the stock aluminum mercury 48-78118 17P (14.5” 17P) prop behind the 5.7L MCM Alpha1 Gen 2 235 hp
I’m maxing out at 38 mph (gps) and 4800 rpm (boat tach) at WOT. I had one instance where I...
I have an MCM Alpha 5.7L SN 0F598365. After the engine warms up, it has a hard time restarting. It will, but I often have to give it a lot of throttle. I assume this is a carburetor problem. I’ve rebuilt a 2 barrel Rochester in the past, and I’m not too scared of a carb rebuild, but I was...
I have an MCM 5.7 Alpha engine serial# 0F598365 that was dieing when I would shift from forward to reverse. I adjusted the shift cables, and now it dies when I shift from forward to neutral, and dies when I shift from neutral to reverse. I tested the shift cutout switch using a 1/8” alan wrench...
I have an MCM 5.7 Alpha engine serial# 0F598365. I bought this boat last year, and it ran ok, but I had issues with the engine dying sometimes when shifting to reverse. I followed achris' video on how to adjust the shift cables, but I have a spring guide assembly on that assembly that I didn't...
I just changed the port bank of my 5.7L Mercruiser Engine serial #0F598365 on a new to me boat, and I noticed it has the wrong plugs on it. The air cleaner cover says it’s supposed to use AC Delco MR43T, but it had NGK BR6FS plugs in it. The photo doesn’t show it very well, but the NGK is at...
I have an Alpha 1 GenII, and I’m wondering what these holes are in the drive and the bell housing. The gasket covers both holes, and the holes don’t line up, but they look like they’re there for a reason.
I have a drive that started leaking after I did some routine maintenance. I’ve already drained the oil. Can I do a pressure test while it’s still attached to the boat? Is the oil reservoir cap vented? Will the pressure blow any hoses off?
I’m trying to remove the lower leg on a new to me 1999 8hp 8ML mercury long shaft. I removed the pin at the top of the shift shaft, and the 3 nuts that hold the leg on, and loosened the piece in the middle of the shift shaft. The leg is stuck at the front of the drive. Their seems to be white...
