CGforMongo, on Amazon, you could search for "Full Port Brass Mini Ball Valve 1/8 NPT Female X Male 600 PSI Rated W/Internal Viton Seat & Blow Out Proof Brass Stem"
airshot, yes, the petcock was installed in my block drain when I bought the boat. I've dealt with the manifold drain all these...
Thank you both.
Bondo, the ball valve threads are 1/2" long, so 1/8" to 1/4" of water could be left after draining, but the manifold is shaped so the drain is sort of a well, so it would be only very local to the drain hole. So it makes sense that even if that little bit freezes, it's not being...
1974 Harris Flote Bote
Mercruiser 140 4-cyl 181 cu.in. s/n 3888148
Hello all,
We've been doing a lot more fishing off the pontoon boat. This coming spring 2025, we're hoping to take it out earlier than usual. Here in Wisconsin, it will still drop well below freezing on some nights, so I will...
Hello,
I've been searching all around the web and can't find what I'm looking for. I figure you guys will probably be able to point me in the right direction.
What I want for my kids' wakeboat:
Stereo Pre-amp (or passive) Head Unit
Marine (better) or Car (fine)
Aux Port to plug in MP3...
1974 Mercruiser 140 s/n 388xxxx
Mercruiser "Late Model I" Stern Drive s/n 390xxxx
Hello,
My sterndrive started pulling up when in reverse... I'd have to trim it back down. I went today to look at a reverse shifting problem (might be related), and when we took the support strap off the...
1974 Mercruiser 140 s/n 388xxxx
Mercruiser "Late Model I" Stern Drive s/n 390xxxx
Hello,
It's been 5 years to the month since I replaced the stern drive shift cable. Now I'm having this problem:
Sometimes when shifting into reverse, my single-lever control will go past the shift position and...
.
Two questions about the sterndrive end of the new Teleflex steering cable...
1. I got a new steering tube which will thread inside of the locking nut on the cable, but I forgot to get the "wiper nut" for the other end of the steering tube--what part do I need, and can it have a zerk...
My 1970's pontoon boat has a Mercruiser 140 with a "Late Model I" stern drive. The steering has gotten to be extremely stiff. I disconnected the cable from the sterndrive yoke and the sterndrive moves easily (I keep the fittings greased, as well). I took the steering box apart--as I recall it...
I'm used to Mercruiser props with the splined hole in the middle an integral part of the prop. I picked up a rebuilt prop and later found that the splined hole in this prop is part of an insert that can slide out. The outside of the insert is tapered like a cone and has 3 or 4 squared off...
I need to tap the hole in my riser elbow, where the brass pipe plug is supposed to thread into. It's kind of jammed in there now. Does anyone know the thread size? If I have to go bigger, what's the next logical plug thread size? I'm not a thread size guy.... thanks.
I've read lots of the "stiff steering" posts. My 1970's Merc 140 has stiff steering. The way my helm is mounted, there has to be a pretty sharp bend in the cable where it goes through the floor. I will detach at the drive arm and check the aluminum cable tube. If I end up looking at...
I've been thinking of picking up a used carb or two for parts or to try running. My 1974 Merc 140 (s/n 388xxxx) carburetor tag says Mercury Marine 1351-5203A1. I see used carbs with part numbers like 864940, 214715, 866141001 or 34-6118. Is there a compatibility chart somewhere that I can...
1974 Mercruiser 140 s/n 388xxxx
Old man winter is coming and I winterized my boat before I solved the issue with the choke plate closing tightly when fully warm (discussed in other threads). Thought I'd try to pick up a few parts over the off season and try them in the spring before removing...
Over in the "no engine compression" thread, havasuboatman wrote, "If the motor sat for a year, you will want to pull the distributor, fashion a tool and spin the oil pump using a drill. That will pump oil throughout all of the oil passageway and bearings before you do anymore damage to them."
I...
