Identifying cross-flow or looper

[i57chevy]

I have a Evinrude 1996 115HP Model E115TLEDA. About to have some piston work done. Is this a 90 degree v4 cross-flow or a 60 degree loop-charged?

 

[racerone]

90 degree crossflow is what you have.

 

[i57chevy]

Thank you.

 

[i57chevy]

I think my no 1 piston may have burned up because of oil injection. How can I verify and/or make sure this is prevented after the piston is fixed?

 

[Bosunsmate]

Premix and make sure your fuel is getting clean to the carburettor (filters help).
Also replaced the top crank seal, its just a few coins

 

[racerone]

Oil injection failure would destroy more than 1 piston !-----Look for other causes of broken rings / cylinder damage.----Are you doing the work yourself ?------You can inspect your VRO pump, easy to do.-----You need to look at the entire OIL SYSTEM including hoses and filter in the tank.-----Run the factory test on the oil injection too.

 

[i57chevy]

I was thinking about pulling the head and bringing it to a shop to check, and replace piston. I brought it a few months back to a boat mechanic shop, and he said no 1 piston was bad. When I bought the bought a couple years ago the gentleman said that he just had the no 1 piston reworked. He was gonna charge $2800, but I just haven't been able to scrape that up.

I'm sure I can pull head if I follow clymer, and take pictures.

 

[racerone]

Factory manual is best to do a complete overhaul.-----Take your time and ask questions before using a hammer & chisel on that motor.

 

[i57chevy]

But hammer has always been my favorite tool. Where do I get the factory manual, and how much?

 

[Bosunsmate]

http://www.boatinfo.no/lib/evinrude/manuals/1990-2001johnsonevinrude.html#/0
These manuals have always seen me through.
Yes its pretty straight forward, an easy way to save $2800, just make sure everything is spotlessly cleaned

 

[oldboat1]

Piston work/replacement aside, is there any other reason for knowing whether one has a loop charged or cross-flow motor? Bear with me. I'm old.

I'm thinking one might be more susceptible to broken rings. Is that it, or are there other considerations?

 

[flyingscott]

Your #1 piston did not fail because of the oil injection. I would not replace just one piston because the other 3 are probably going to fail sooner than later. More than likely you broke a piston ring.

 

[racerone]

The V-4 crossflow has a simpler fuel system.-------The V-4 crossflow has a simpler ignition system----The gearcase on a crossflow has a lower ( sudden failure rate ) than the 60 degree looper.-------If you rebuild a V-4 crossflow properly it will be a sweet running.

 

[oldboat1]

(^^Thanks for the info., R.)

 

[i57chevy]

Thank you.