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yes, I replaced both thermostats and the impeller when I rebuild the motor but, one side is running hotter than the other so I decided to replace the poppet valve and the springs inside the thermostat housing. As far as the power head gasket it has just the little paper seal. The thing...
OK, I feel like have been on here to much lately but am still having issues with my 1993 Johnson 90hp cross-flow motor. In the first pic you can see that after my rebuild i noticed I was leaking some fuel/oil from the front side of the outboard. At the same time I am also having an issue with...
Hello, I have a 1993 johnson 90 hp cross flow motor. Long story short my motor chewed up a piston. I realized that all of the piston bores in the block were worn out of speck so, I sent it off to the machine shop and had all of the cylinders bored and ordered all new pistons. Once I got the...
Hello, I am in processes of rebuilding my 1993 Johnson 90 horse cross flow motor because it chewed up a piston ring. My question is when is it necessary to replace the rod bearings. I priced a bearing kit by serria and it is about $500. I don't think my bearings look like they have over heated...
I have a 1993, 90hp Johnson outboard it is the v4 sea horse. About three years ago it chewed up the piston rings on the lower piston on the right side. I believed that it was because of the vro2 fuel/oil pump not working properly. After I replaced that piston and re-ringed all of the pistons I...
OK i am going to be honest the tilt and trim were working fine and i had just performed a rebuild on the motor. I was installing the power head and one of the last thing to do was splice the trim switch back in on the side out the outboard housing. While I was splicing the wires (red, blue and...
Hello, I have a 1993 Johnson 90 hp vj90tlets. I believe my fuel pump has gone bad it seems as if it is running out of gas. I put it on a separate tank to eliminate the boat side and it is still doing it. I found out that when you pump the fuel bulb it starts running good. So here is my...
Re: piston size
The cylinder walls dont look bad i was going to hone them and they should be good. you cant catch a finger nail on it or anything
I also looked up the part numbers the 0393328 is for a 1985 115 hp .30 over and the part number for the motor that I have is a 0396588 for a 1993 90...
I have a 1993 90hp johnson v4 motor I need to order a piston i am trying to figure out if it has been bored out. there is a 030 written on the piston does this meen it is .030 over?
Re: 1993 90hp johnson sometimes doesn't want to take throttle
I had already ordered the head gasket I was just waiting for it to come in I was hoping it would be something simple and I was also worried about pulling the head bolts because they are really rusted this boat has always been in the...
I have a 1993 90hp Johnson V4. About two weeks ago I just put in the water idled fine away from the ramp, but when I went to give it throttle she started to get on a plane and then died after this she would not take any throttle at all without dying. The motor was even wanting to die out trying...
I have recently purchased a 4.3L vortex mercruiser motor. I am replacing the 4.3L that is currently in my boat due to mechanical failures. The motors are supposedly the same. both 4.3L both vortex. I am not sure the exact year makes of the motors but I have checked them before and they are...
I have a 1993 90hp johnson that starts right up on the hose but when you put it in the water it takes a couple of tries to start it. Some times it will start in the water idle rough and die a couple of times before you get it going, this happens only in the water. I have heard that low...
hello, I am new to the forum and I have never owned a boat before and do not really know much about them. I took my boat out in the water the other day and today I was checking on the tilt trim fluid and trimmed the motor all the way up and when I did some oil came out of the motor it is real...
