140 hp Johnson

[shurlock]

hello everyone missed you all, things have been crazy at work. and I have finals at the end of this month. but I finally had a chance last weekend to get to the engine and I have it running. I had to solder some parts on my wiring harness. kind of a ghetto rig but I'm going to order the new harness from eBay. my grandparents are giving me some money in June as a graduation present. going to use it to buy a kicker motor and some cushions for the cuddy cabin will be looking forward to talking to you all mid June.

[shurlock]

Thefermanator's powerhead: http://youtu.be/N_WQRFCnJPY

[bradford]

Sweet!

[THEFERMANATOR]

That was always a good strong running engine for me after I figured out how to work on loopers. The small bore engine is a little low on torque down low, but once it gets a few RPM's up it is a beast. If you get it propped right it is really good on fuel to. I found propping it to spin up to 5800 RPM's or so WOT is where it was happiest. If you load it much harder it drank alot more fuel, and much less and it guzzled at cruise. Get it in it's sweet spot and it would burn about 6 GPH at a 3800 RPM cruise. Get it off and it would suck down 9-10 at the same RPM's.

[shurlock]

second run top speed 33 miles per hour Florida Everglades
140 hp Johnson second run after powerhead changed: https://youtu.be/8lZU2lBUo14

[THEFERMANATOR]

Originally Posted by shurlock

second run top speed 33 miles per hour Florida Everglades
140 hp Johnson second run after powerhead changed: https://youtu.be/8lZU2lBUo14

Do you have a working tach on it? Sounds like your turning maybe 5K RPM's which is way to low. I would expect alot closer to 40 or low 40's out of that engine on that boat. I know that 140 would hang would just about any 150 on a simliar boat, and 150's will push a V-20 to 40-42 no problem. Also it looks like your getting alot of spray off the foot, so your engine may be mounted to low. Check to see what prop you have on it as you should be spinning a 15 pitch stainless, anything bigger and it will bog the engine down. And that 1.8L engine HATES being lugged, it likes RPM's. The limiter in it is set at 6100, and I used to prop it so that if I trimmed it just a tad high it would bump the limiter. That always gave me the best fuel milage, and the best power out of it.

[inaforty]

Ferm and Spare,

You guys are a wealth of info.

Thanks for sharing your knowledge.

[shurlock]

tachometer is currently not working will have to buy one I have one that you hold on the flywheel sounds a little dangerous though. there is a fairly large aluminum prop on there not sure the pitch will find out soon