1993 johnson 70 hp questions

[dingy10]

My first question is are these the black and tan wires that i need to disconnect to stop the vro so i can manually put oil in my gas. And my second question is are there bolts missing from my motor as you can see theres holes that look like bolts may be missing any input is appreciated im new to boat engines and would like as much information as possible.. THe motor is 1993 johnson model number vj70tlets.. If any one has any input or suggestions let me know thanks

 

[emdsapmgr]

Re: 1993 johnson 70 hp questions

It looks like the wires in that connector connect to the VRO system. The engine block may have pretapped holes from the factory. Some of these later blocks have provision for a small temp sender for a temp gauge. Most of these holes are exactly flat at the bottom-to match the butt end of a sensor.

 

[noelm]

Re: 1993 johnson 70 hp questions

Why do you want to remove the oil system? there is always holes in motors with no bolts in them.

 

[dingy10]

Re: 1993 johnson 70 hp questions

i dont really want to remove the oil system but it was suggested i do. ive done alittle research and read that if the system fails my engine get ruined so thats why i was thinking better safe then sorry. Imn open to what you think i should do seeing how i have little to no boat motor knowledge or experience so any suggestions i appreciate keep the info comeing

 

[dingy10]

Re: 1993 johnson 70 hp questions

Also does any one know where i can get a manual on this engine?

 

[noelm]

Re: 1993 johnson 70 hp questions

any dealer will be able to get you a manual, buy a genuine one, not a generic manual (like Clymer or Seloc) or even worse a cheap CD copy off ebay, get the oil system checked/updated, it gives very little trouble and the motor will run a lot better.

 

[emdsapmgr]

Re: 1993 johnson 70 hp questions

The Bombardier dealers can only get manuals back to around the 1998 timeframe. Older than that, they will direct you to their original publisher for the older ones. You can contact Ken Cook Co., from Milwaukee direct or online at: outboardbooks.com. These will be the original factory manuals-the only ones to get.

 

[dmoriarty51]

Re: 1993 johnson 70 hp questions

i got a factory manual for my 95 70hp on ebay for about $25. I have also unhooked vro, i believe that is the correct plug trace it back to the pump and make sure thats where it goes, should have 4 wires in it i believe.

i strongly suggest that you drop the foot and take a peek at the water pump, there are many reports of the 3 cylinder omc having cooling issues and the water pump impeller was changed from 3 vane to 6 vane for better flow/pressure. i toasted my middle cylinder had it rebuilt and then toasted it again... decided to work on it myself at that point and discovered the impeller to be dated from 1995

my saga is detailed here http://forums.iboats.com/showthread.php?t=407852 looking back after finding the water pump and learning some things i quite likely disconnected a perfectly functional VRO system. i often ponder reconnecting but am still very much on the fence about it

 

[dmoriarty51]

Re: 1993 johnson 70 hp questions

just my own curiosity how big is that boat and what prop is on the motor?

 

[dingy10]

Re: 1993 johnson 70 hp questions

[ll

 

[dingy10]

Re: 1993 johnson 70 hp questions

just my own curiosity how big is that boat and what prop is on the motor?

its a 15 ft javelin that im in the process of redoing the carpets the prop is a 4 blade stainless steel why u ask?

 

[dingy10]

Re: 1993 johnson 70 hp questions

just my own curiosity how big is that boat and what prop is on the motor?

posted it twice

 

[dingy10]

Re: 1993 johnson 70 hp questions

The boat is maxed out with a 70 hp thanks everyone for the advice any more things you guys feel i should know please mention

 

[dmoriarty51]

Re: 1993 johnson 70 hp questions

its a 15 ft javelin that im in the process of redoing the carpets the prop is a 4 blade stainless steel why u ask?

just curious, i have a 95 70hp on a 16ft crestliner... considering changing prop sort of researching what others use