Help with Johnson 70hp seahorse ????

[GOARMY60]

Hello and help if you can.

I bought an old Boston Whaler and it had a 70hp johnson seahorse on it.

The previous owner had no info on the motor.

I got these serial numbers off the transom mount.

J70TLC09

J6109776

I dont know what year the motor is and want to get it ship shape.

here are some pics.

Thanks, Doug

 

[GOARMY60]

Re: Help with Johnson 70hp seahorse ????

more pics......

 

[JB]

Re: Help with Johnson 70hp seahorse ????

Howdy, Army.

Welcome to iboats.

That is a 1985 long shaft with PT&T, Army. Good engine.

Good luck.

 

[Home Cookin']

Re: Help with Johnson 70hp seahorse ????

I assume that's a 17' whaler? if so that motor is a good match for it. Although I wasn't aware it took a long shaft.

it's a good motor when it isn't, there are lots of questions about them here-includnig mine!

welcome to iboats. Is this your first boat?

 

[Blacksting]

Re: Help with Johnson 70hp seahorse ????

yup , '85 , i got the same motor . did you fire her up yet ? mine screams , but having a little trouble w/ it at wot . soon to be fixed right after it stops raining , i hope . got it on a 14' Starcraft American . i've yet to test the vro system but i read they were'nt very reliable back in those days . they upgraded them since w/ different colored nipples from the oil port . also , the pee hose is supposed to be relocated to the top of the block . mine works fine , not going to touch it . the tilt was stuck till ni greased the fittings on the jack plate . works great . lots of top notch mechanics here on iboats . theres nothing you cant find out ....keep us posted .

 

[Rudemen]

Re: Help with Johnson 70hp seahorse ????

Hello and help if you can.

I bought an old Boston Whaler and it had a 70hp johnson seahorse on it.

The previous owner had no info on the motor.

I got these serial numbers off the transom mount.

J70TLC09

J6109776

I dont know what year the motor is and want to get it ship shape.

here are some pics.

Thanks, Doug

View attachment 142350

Your Model number is J70TLC0S not J70TLC09.... 1985 Johnson 70hp Trim & Tilt, Electric Start, Shaft Length for 20" transom.

 

[GOARMY60]

Re: Help with Johnson 70hp seahorse ????

Thanks guys for the help.

No its not my first boat and it is my 3rd whaler. I restored a 67 17 once and love the hull.

The one in the pic is becoming a Duck Boat believe it or not! I plan on running it on the Chesapeake and Delaware bays.

Instead of buying a new duck boat I decided to go with something I know.

I also have a 1976 21 Outrage with twins on it. I just started working on that one now. It was owned by the Delaware DNR
and I hope to repower next year with a new motor.

Here is a pic of the 17 now......

 

[GOARMY60]

Re: Help with Johnson 70hp seahorse ????

I have not fired the engine up as of yet. I should be ready in like 2 weeks for a shake-down. Keeping my fingers crossed
and hope it runs good. Guy I bought it from said it was always owned by 1 owner and the motor has good compression.

I guess I will find out...LOL

 

[GOARMY60]

Re: Help with Johnson 70hp seahorse ????

oh yeah, By the way....

how do you tilt the motor without using power trim and tilt?

I have no battery hooked up and needed to tilt the motor and could not.

I could not find a catch to release the down position? what am I missing?

Thanks, Doug

 

[Rudemen]

Re: Help with Johnson 70hp seahorse ????

There's a bleed valve on the same side as the reservoir, Starboard side, Right hand side of the unit, use a sloted/flat head screwdriver to open and release it.