I just built this engine and have been running it on the muffs to get all the bugs worked out. I pulled the head to replace the head gasket because I reused this one. This was a new head gasket and had an hour on it when I pulled it. It was pulled because I was having a over heating issue and...
I have a 1988 175hp (I am running a 1979 235 powerhead, but everything else is the 1988 175) This is a new engine build. My starboard side bank is running warmer than the port side. The port side is about 158 and the starboard is about 170. The starboard side was running about 190 and I changed...
My 1988 Johnson 175 is stiff to shift at the engine. For those that have read some of my previous posts, this is the 1979 engine build. I have had a few issues and I know it is coming to a point where the lower unit will need to be rebuilt or replaced next year. Just a few goofy things it is...
Ok, I have a 1988 Johnson 175 that I have put a lot of time in after building a new engine. The linkage setup was finicky with the last one and I may not have had it completely setup right the first time. But I have pulled the lower unit and have measures the shift rod to spec and setup the...
The carb I have looks to be off of a 1988 XR150. part # 334330. I was rebuilding the carb and managed to stick the sharp tool I was using to punch out the disposable plug when it managed to perfectly land in the hole that sprays fuel in the carb. I tried fixing the hole but it managed to get...
I currently am working on a Johnson 1979 235 block that I have just rebuilt (no serial #’s but matching case halves). I am currently using the intake manifold, carburetors (1-3/8) and electronics from a Johnson 1988 175. The engine originally came to me without VRO. It’s a long story and it’s...
I have a johnson 1979 235hp and I am trying to put the inner exhaust cover gasket on the block. It also has two o-rings that are placed here as well according to the manual. The gasket I have that came with the set is not cut out large enough in the the spot for the smaller of the two o-rings...
I have a Johnson 1979 235hp with Johnson 1988 175hp electronic and carbs. I am building a new engine as the old one had a connecting rod go through the block. While going through the electronics I have found one ignition coil that has a crack in the casing and needs to be replaced. I have two...
I have a 1979 235hp that I am building. I found a brand new block, so that is what I am working with. The inner exhaust cover gasket I have seems to have some questionable issues. some of the bolt holes don't completely line up when the majority of the other bolt holes do line up. Also when the...
I have a 1979 235hp that I am building. I found a brand new block, so that is what I am working with. The inner exhaust cover gasket I have seems to have some questionable issues. some of the bolt holes don't completely line up when the majority of the other bolt holes do line up. Also when the...
I gel sealed my block today. The spray activator I used was a couple years old. I couldn't find anything as for information as a expiration date on this stuff but wanted some thoughts on this as well. Second is that I confused my torque specs when torquing the block. So I torqued it to 10 ft lbs...
I gel sealed my block today. The spray activator I used was a couple years old. I couldn't find anything as for information as a expiration date on this stuff but wanted some thoughts on this as well. Second is that I confused my torque specs when torquing the block. So I torqued it to 10 ft lbs...
I have a 1978 235 using 1988 175 carbs and electronics. The Flywheel is off of the 1988 175. The flywheel I have needs to be replaced. It had to be forcefully removed due to pulled threads. It has four broken magnets and some dents that could be removed by a good machine shop and balancing, but...
I have a Johnson 1978 235 I am building. I am using carbs and electronics from an 1988 175. I have fuels pumps with the Bottom pump part numbers 328-781 on the front with another # 393648. The Top pump part # is 343462 and the other # on it is a 438559. The original fuel pumps that i was using...
I have a Johnson 1978 235 I am building. I am using carbs and electronics from an 1988 175. I have fuels pumps with the Bottom pump part numbers 328-781 on the front with another # 393648. The Top pump part # is 343462 and the other # on it is a 438559. The original fuel pumps that i was using...
