A Hole in Cylinder Passage behind Starboard Deflector??

[Klink]

1990 Johnson 115, V4 Crossflow bubbleback


I'm cleaning out the Starboard water passages, and pulled out the middle deflector and found that there is a hole in the block behind where the deflector base rests. The hole looks like it is machine drilled, however, I don't see any mention of it in the manual, nor did I see the same hole on the port side. Also, I don't see it's purpose since it is covered by the deflector.

Is that hole normal?

 

[boobie]

Re: A Hole in Cylinder Passage behind Starboard Deflector??

Yes........

 

[Klink]

Re: A Hole in Cylinder Passage behind Starboard Deflector??

OK, thanks.

Was there one on the port side cylinders too, that I didn't see because it was clogged?

​

 

[Klink]

Re: A Hole in Cylinder Passage behind Starboard Deflector??

Also interesting is that I had to cut about 1/4" piece off the middle deflector on the port cylinders side after it bottom out on the back, while the starboard cylinders one middle deflector was flush, and did not need cutting. Any explanation for that?

 

[Klink]

Re: A Hole in Cylinder Passage behind Starboard Deflector??

Found answer here: http://forums.iboats.com/johnson-ev...lectors-installation-87-90hp-evin-446860.html

Don't use grease. After they're installed the may slip out of place easier. We spray them with something like Electra Clean or Brake Clean which evaporates. As long as the slot is clean they should just about bottom out. If it doesn't bottom out they'll only miss by a 1/16" or so and we trim that off flush with a razor blade. That depth varies a tiny bit between blocks as does the hose length.

On the port cylinder middle deflector I had thoroughly cleaned the place where the deflector goes, (and found no back hole) coated the deflector with 2 cycle engine oil, and slipped it in all of the way till it bottomed. There still was a piece leftover to cut off, and it had bottomed.