140 ho Evinrude

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Hello,
Im looking into buying a 20ft Mako for a grand but I have a problem. it has a 1984(roughly about that year) the motor bracket it rusted to where it needs to be replaced and the boat has sat for 4 yrs. he says he is sure that it would run seeing that it did before the bracket broke. its where it steers.my question is can you tell me if maybe other models or hp has the same bracket I could swap out? the boat itself is in great shape for a 1976 year and the trailer it good but the motor concerns me for that replacing the engine wouldnt be that cheap, even used. it has to be a short shaft motor. maybe you can help me or give me some info on what motors I can get the bracket I am needing. Thanks
 

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
Re: 140 ho Evinrude

The port transom bracket is 392203 and the starboard bracket is 392204. Those part numbers were specifically used on all 70-235 hp engines from 1982 through the 1984 model year. Likely these parts are NLA from Bombardier, but they should be a common part and other brackets from other years may fit. The shaft length does not make a difference. Check EBAY. Likely you can buy a complete midsection (only) with the trim assy fairly cheaply, then salvage the part you need from it. You could also try marine salvage yards-like Boat Recyclers of Wilmington-on the web.
 

CaptRoob

Cadet
Joined
Dec 11, 2008
Messages
25
Re: 140 ho Evinrude

if you are talking about the steering bracket on the motor that comes from under the lower pan. that is not an expensive part. it's the labor. if it is in such bad shape that it broke from rust you can bet you won't be turning the nuts that are holding it on. you are looking at over a grand for parts and labor because if it is what i think it is you will most likely need a replacement mid section
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

We're assuming this is an outboard and not a Sea Drive, right? Some pics would help greatly. In your quest for replacement parts keep in mind that there were no short shaft (15") V4s. Most likely what you'll need are parts for a 20" (long shaft) motor. There were some 25" (x-long) models. A model number would be a great help.
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

I don't have pics of it but I will this coming weekend. what format should I use for pics because I have problems getting them on here. it says it too big of a file. as for the boat. the boat is in great shape just the motor part. I'm also looking around on maybe just getting another motor but at a cost that I can afford. the best way I can explain is the the shaft where the motor connects to the bracket is what bad. just like the pic that was posted. the info all you have given me makes it look that replacement is going to be costly so I have to weight out the cost of fixing to just finding another motor and go from there.if it going to have all that taken a part, you might just as well rebuild it and have knowledge that once its on you will have a new motor in some ways.Thanks so much on information. and almost forgot. yes the bolts broke so I know that the would have to be tapped if possible.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

Does the motor look just like the one in the pic?
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

No, it not a omc or that type of mount. it mount right to the transom. I believe its a 20 inch shaft. I talked to a guy at the boat repair and he said I was looking at around 1,000 dollars to change it. just went there. I am going to get back with the guy that has the boat up for sale and see if I can get it started and running to see for sure if its worth putting the money into the bracket fix. the guy at the repair shop said it he would have to drop the lower unit and remove the top to do the repair. does that sound right? I'm sure it does. as soon as I can get a pic, Im going to try and down load it on here or if you dont mind, you could email me at shawknee1@cox.net and as soon as I get the picture, I could just send you them and it would at least give you an idea of what I am looking at. now I have a picture of the boat I could email but its not the greatest but it would give you an idea of the boat. I a question. the boat is a 1976 20ft Mako and its in real good shape. the trailer is workable but he said the axle is new and the hubs but he thinks it would be best to look for a better trailer. I'm going to take a look at it again, it was almost dark when i got there anyway, what I am looking at, is he wants a 1,000 for it no lower or he is going to donate it for tax reasons. Im looking at either a 1,000 for the repair if the motor runs good or I can save and spend close to 3,000 if I was to but a motor from a repair shop, so Im trying to find my best option. I just dont want to loose my butt and this is the type of boat so that I could fish both the bay and the gulf. Thanks for the help
 

Attachments

  • boat.jpg
    boat.jpg
    5.3 KB · Views: 0

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

Yes, the lower unit and the powerhead has to come off. Then the midsection. Then you can get to the nut on the bottom of the shaft. Like Capt. Rob mentioned, the part isn't that expensive - it's the labor.

One more thought - If the motor is a 1984 140 it's a crossflow, probably not worth the effort / money. If it's a 1985 140 it's a looper and might be well worth the money to fix it.

A good friend has a 20 Mako with a little different motor. I doubt you'd even get him to consider selling it for anywhere near 3000. And his is a 1974 model. Good boats.
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

Thanks for the information. I'm currently looking at a 135hp evinrude for $575 but I want to hear it run and check it out. I emailed asking for model number and serial number. then I could at least put it on here and maybe get your opinion if its a motor worth getting. I'm going to get a compression gauge to check the cylinders. what should they be? I really like this mako so if I have to just work and save money to get it right, that's fine. I'm in no rush. I want to do it right. whats the max hp can you put on a 20ft and be safe? since being new to the boating field, I question what would a better motor to make a long term investment? this evinrude is more for at least maybe getting it back running and on the water but I don't know if they are a good motor or maybe Yamaha or Merc? its not going to be sitting in the water. I have a 14.5 1974 Ranger that I bought about a year ago and it has a 1973 Mercury Thunderbolt that other than being old it runs great. when I bring it in, I flush the motor with fresh water for about 10 minutes and run the line dry so no gas sits in the carb. Im thinking of doing this motor the same. I rinse all the saltwater off as possible. Thanks again for your time
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: 140 ho Evinrude

All fine except for running the motor until it runs out of gas. You can get away with that with a single carb, but not for multiple.
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

Thats interesting. my merc has two and I was told to do that so i wouldn't create buildup. learned something new there. Ive always flushed my motor since saltwater would kill them but didn't know that running fuel out is only good on single carbs. people like you and others are helping me so much in the marine field. I have always loved boats but just so limited on income that it has taken me time to start owning one. Thanks for all your help.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: 140 ho Evinrude

On a two-stroke carbs deliver both fuel and lube. The top carb always runs out of fuel first leaving the top cylinders w/o any lube while it chugs along on the bottom two.
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

ok, that make sense, so it would be best not to do that anymore but what if its going to sit for awhile? maybe just manual drain both? some Mercs run one line to the top carb then down from there to second but mine has two lines to both carbs separate. maybe just add fuel stabilizer to the gas. Thanks
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

Just my 2 cents worth - pass on the 135. Look for something newer and a bit more power. A V4 crossflow is OK on that boat but a V4 looper is much better. An ideal motor is the 60* 150 or 175. Great combo.
 

iwombat

Captain
Joined
Jul 12, 2006
Messages
3,767
Re: 140 ho Evinrude

Put stabilizer in the fuel and you'll never have to worry about it.
 

snookhooked

Petty Officer 2nd Class
Joined
Aug 19, 2008
Messages
159
Re: 140 ho Evinrude

I would like to go 150hp or higher but I'm going to go back and put a payment towards it Sunday or make arrangements. I'm curious to what would you think the max hp you could put on a 20ft mako? right now I found a 150 Yamaha that I emailed about to find more info on. I have heard they are great engines but we all have opinions so who knows what great? lol anyway, being that mako transom is low to the water in terms where the motor sits, I want to make sure that I put the correct hp there. it has a forty gallon tank so I have to look at what more would be best in fuel use. there's a lot to consider here. this is my first real big boat to me and I'm in no rush just to drop it in the water right off. I want to put good electronics and marine radio. I want it to be a fun experience but most important Safety.......Im not going to rush on buying a motor either, I want to make sure what I get is in the best condition as well. any tips, pointers and ideas that you throw my way will help me in future decisions and I'm open to all. this is going to be my hopefully last boat to buy. I have always wanted a 19/20ft center console and now I have that chance to own one. Im sure you all understand how I feel. take care and thanks for all your help and I look forward to your views and opinions.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

You picked a very good boat for your situation. We've put 200's on the 20 Mako before. A 200 looper was a bit heavy and an overkill but it worked. Not unusual to see 150-200 crossflows (lighter & less torque) on them too. The 150 Yamaha would make a good motor, assuming it's healthy.

Something to keep in mind, and it may or may not be important, to switch to a Yamaha you'd need new rigging. You might need new controls if yours are OMC specific. Just an expense to keep in mind.

My buddy's Mako has a 60* 150 Evinrude. In my opinion that's the perfect motor for that boat. Very peppy and good on fuel. That boat gets to a given top speed fairly easy but after that it takes a lot of power to go faster. I don't think you're looking to have the fastest 20 Mako on the planet but you want enough power to be safe and have fun (maybe pull some water toys).
 

jim_b_20653

Petty Officer 3rd Class
Joined
Apr 23, 2008
Messages
92
Re: 140 ho Evinrude

Where are you located? There is a 1994 V-4 Evenrude with a blown powerhead in Wash d.c. craigslist today for $200. Buy that or something like it, swap out your good powerhead and you are in business pretty cheap.
 

Dhadley

Supreme Mariner
Joined
Feb 4, 2001
Messages
16,978
Re: 140 ho Evinrude

That would work if the motor on the Mako is a V4 looper. If it's a V4 crossflow nothing will interchange.
 
Top