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Just to be on the safe side for the transom area, I plan to feed more antifreeze from the muffs on the sterndrive (Maybe some water left in exhaust manifolds, in the drive etc..). But I am worried that it may take too much time for the pink to appear on the exhaust (Because it took only 3...
Yes NH.. Just moved here last winter, brought the boat in summer, so a bit stressed. Last winter the lakes all around here completely frozen for weeks, it was quite brutal. In summertime I boated both at lakes and also on the ocean. Always keep it on the trailer. I didn't know it can be drained...
Yes it has power steering and fuel cooler both. I don't know if single point system drains them both. I'll try to check today if they have any drain plugs.
After filling out with -50 pink AF yesterday, I didn't see anything coming out of the water intakes on the sterndrive.
It shouldn't be...
Sorry, not clear. So there is no water in the drive that I should worry, no need put antifreeze there?
I checked the quick release disconnect on each side of the engine block, and AF came out nicely.
So, is it all done? No need to run the engine and suck more AF thru the muffs?
Ok, after draining the water using the round valve in the picture on my #8 post, I removed the thermostat block (only two screws, easier than removing the hose), I poured down 3 gallons of antifreeze and it looks full now.
1) Is it supposed to be 4.5 gallons? Where is the remaining 1.5 gallon...
Doctor, is the plug on the picture the "quick disconnect fitting"? I found it on my engine (see picture) as well. Does it have the same function as blue manifold? I mean they are supposed to be out for draining as well?
What is the difference between block drains and manifold drains? As I...
Heat exchanger is for the hot water (see picture). The right side hoses come from the engine. The left side is fresh water (faucet, shower etc..). It needs to be winterized separately. Last year I did the left side (fresh water), used potable antifreeze. The shop told me when they did the...
Thank you for the manuals link. It will need some digging, many items about 5.0 MPI.
Could you answer my questions 2 (hoses) and 3 above, if possible?
And about the heat exchanger (see attached picture), will the antifreeze naturally fill the hoses and the heat exchange with gravity?
Thanks a...
Allright, that does it ! :) When I open the round valve, water comes out abundant on the orange outlet in my initial post. Clearly that should be the main drain point. Now some questions for the remaining work:
1) What is the use of the blue tap/plug on the thermostat (left one on the picture)...
No no, it is not a closed system. It takes the cooling water from the lake. (I guess it means open cooling, right?). I took it the shop last year and after that I made sure pink water came out from the plug above. And for the heat exchange and all the fresh water, I did it myself by putting...
Attached are the serial numbers.
I am worried that when I drain thru this plug, I might not be able to drain all the water in the engine. Is there any way to verify that?
Hi folks,
Planning to winterize my engine the first time. Actually, I was going to give it to a marine shop (I'm in NH), but all the shops are fully booked until November and it will be freezing on next Sunday night, so I guess I have no option other than DIY.
It is a MerCruiser 5.0 MPI. After...
This folk seemed to have a similar problem, but I didn't exactly understand how he solved the problem. Is there a usage method that I can avoid this happening?
https://forums.iboats.com/threads/mercruiser-5-0-mpi-idle-issues-replaced-iac-bad-part-update-added-video.665184/
I replaced the distributor cap and rotor, it seems like it helped a bit. But still, after engines warm up, the idling problems show up more often. As I mentioned, the worst situation is when I am back at the dock, lots of traffic, the engine is warm, I need switch gears back and forth often and...
I guess the switch is working. While the engine running in idle (it usually idles fine when engine is cold, right after start) I unplugged the switch connector, and the engine stopped.
Attached is the sticker on the engine including the serial number..
https://drive.google.com/drive/folders/1y5yC2ZFtK4wsvNRwsXkCqjSyHxoOyU97?usp=sharing
It says there is no idle mixture screw on this engine, all is controlled by IAC, and replacing didn't help.
About intake vacuum leak (checking vacuum hoses and connections for cracks, splits etc) I don't think I can handle this by myself. I am just an amateur hobby mechanic.
I removed the switch, it seems to be working. I put the relevant pictures below. (Pictures taken engine not working, shut)
https://drive.google.com/drive/folders/1C4441OqunqGX2PNX2MNgaz6m5E0ZwbeH?usp=sharing
The only pins on the connector are 1 and 3 used. (2 is not connected anywhere)...
I put the relevant pictures below..
The throttle and flame arrestors are clean.
The idling stick and screws are shown. I plan to increase the speed if this group approves it.
Thanks in advance...
https://drive.google.com/drive/folders/1RwTvrV49JnI8JTjJONOhll_EymLjw5XR?usp=sharing
