John/Evin/OMC 115 V4crossflow/turbojet rebuild question

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wiguy85

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Mar 1, 2012
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I will be having my buddy rebuild my OMC 115 crossflow/turbojet this summer while overseas. I found a rebuild kit RKXF4 for my engine (115TJEDB) on Powerhead Kit - complete rebuild kits for outboard motors and called but they said they don't have the kit because of too many variances. Does that even make sense?! What could they change in the few years they had these engines? Even shows a picture of the kit. Well picture of kit showed 4 pistons/rings, gasket set, t-stat set, vaious bolt kits, a lower crank bearing and thats about it. So I am thinking about buying all these parts seperately. So my question is what is a list of all parts that i should get for a full rebuild? The bores didnt get messed up so maybe thinking about getting just Rings, full gasket kit, Tstat kit. Engine turns over a little tight so wondering if i should get all crank bearings or just the lower crank since that is the one under most of stress after overheat and if that means getting a crank seal kit also? Wristpin and Rod needles too??? Probably buy 2 carb kits to make sure they all cleaned as I will probably premix and get rid of the VRO since i heard good and bad about them and not sure if i want to take chance. Do i just cap/plug the oil side and it works fine?

Sorry for lots of info but only have a few days to get this stuff together and find them all and what i need so a list of what to get would be best so i can box it all up and give it to buddy.
 

Faztbullet

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Re: John/Evin/OMC 115 V4crossflow/turbojet rebuild question

Dont buy anything till you get it apart as these engine are bad about overheats. then you will know if its needs bored and oversize pistons. Also you do not want to put a forged piston in that motor especially a Wiseco. I sell a kit that has everything you need including all the bearings not just the lower,rod and wrist pin as in their kit.kit has the following:
4 pistons ..you choose sizes needed
complete gasket set
upper,center and lower crank bearings
caged rod and wrist pin bearings
rod bolts
S/S t-stat kit
tube of gelseal sealer
carb kits
4oz can of gasket sealer
Also sh##can the strainers as these has killed a bunch of motors....
 

rothfm

Ensign
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Sep 26, 2006
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Re: John/Evin/OMC 115 V4crossflow/turbojet rebuild question

Sorry to jump in here:

Faztbullet- What did you mean by "Also sh##can the strainers as these has killed a bunch of motors...." Curious, I learn alot from these posts.
 

Faztbullet

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Re: John/Evin/OMC 115 V4crossflow/turbojet rebuild question

Faztbullet- What did you mean by "Also sh##can the strainers as these has killed a bunch of motors...." Curious, I learn alot from these posts.
These came from factory with raw water strainers to keep debris out of engine, these fill up and starve engine of cooling water causing it to run hot. Have found over the years that jet pump pressure will keep block pretty much flushed.
 

bummed boater

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Jul 5, 2009
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I know this is five years later but do you still have those rebuild kits for the 115 turbojet as you described above?
 
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