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Evinrude Engine Upgrade

W

woolsac

New member
Hey all,
My outboard has seen better days. The 79 evinrude 115 on my 79 checkmate trimate 2 finally crapped the bed. Ring broke and rolled around the cylinder.... Distroyed piston and scuffed walls.

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Advice I have heard between all the mechanics around here is to just buy a newer engine as repairing the blown rude will open up a can of worms and my wallet. Thoughts from anyone if the damage above can be fixed on a budget?

I also was considering upgrading a 03 evinrude 115. Wanted to get feed back from anyone who might have experience with this engine if it will fit the current transom mounting boat pattern, let alone fit on the trimate's transom.

Thanks!
Sac
 
Get in touch with either instigator or Bill Gohr both are members on the forum and work on Evinrudes. Go Luck!!
 
Well everyone who gets in this position has to make the same decision. Do I put good money in an old motor? Or, do I buy the newer engine, which will be devaluated the minute I bolt it on the old boat?

And it does bolt in the same holes.

Only you can decide on whether you want to buy that newer motor which will be more than fixing the old one, and fixing the old one may be expensive, depending on who does the job, but, if it has served you well and is sufficient power for the boat the wiser choice is always to fix the old one. Especially when you know you're going to keep the boat.

The key is this, who and how well you do the rebuild. First of all, if no one in your area wants to work on that old engine they are doing you a favor because those engines are very simple to rebuild and they just don't want to do it.

If you're going to keep the boat, spend the extra money and get it done right, if you're going to just look for the cheapest rebuild, then just don't do it, that never seems to work out, cutting corners, using cheap parts, just shortens the life of the engine. Just fixing the bad cylinder will never last, both options are just a waste of money.

So either spend the money, rebuild the engine correctly, know what you have, or, go buy that later engine, which will be even more money, and, you are buying an 11 year old engine you know nothing about.

I always opt for doing the rebuild.

That 79' is a good engine and it has served this boat well for 35 years, it has one bad hole which looks like it will bore out fine. So if that engine was here, bore 4 cylinders, all new factory pistons, rings, bearings, yadda yadda, water pump, rebuild carbs, and all, thats between 2000 and 2200.

Again, it all depends on who does the job, I'm too far away, but there is a great guy in up state NY, I'm not in touch with guys in your area that much any more.

Hope I've helped, as always call if you want, 847 356 3245

Bill
 
Bore and hone all holes. $200
$100 shipping for the block back and forth ( Chris Carson )
New Water pump $40
Buy new pistons $ 300
New gaskets $120
New bearings $200
A can of paint $8
Carb kits $80
Two new power packs for the hell of it. $200
A used head off ebay $50

I wont even add in the 6 pack of beer you'll consume.
A day to get it apart and a weekend to get it all back together.

Thats $1300 worst case scenario of changing all the pistons. You can do it for $400-$500 less if you just change the one. Can you buy a new motor for that?
 
Bill/wired


Thanks for this awesome advice. This boat and motor has been good to me, as well as the previous owners. It seems to me that these heads and block for that matter has never been cracked open. 30+ years this motor has been a workhorse. I would hate to abandon her now, at the time she needs me the most.

As I mentioned, and you as well, the difficult thing is finding someone to do the work. I feel I have enough knowledge and skills to get the block off to send out to a shop for rebore.

I guess I would like to ask who are some shops you would recommend? Also, what are good parts shop? I see there are limited parts on evinrude (at premium prices) but the don't have pistons. Would anyone know where I can get oversized pistons?

The advice I also took from a friend is to maybe take this season as a loss and don't rush to get the boat in. Rushing could result in bad decisions as well as crappy rebuild. Also, the local shops could be so negative bc of being in a busy time of the season. Someone might be more willing to work on it as a winter project at their own pace.

I def need a carb rebuild, I had the water pump changed 2 seasons ago.

So out of this ,I guess I am looking for advice on where I can send my block for rebore/clean up and where are some good parts suppliers, especially for pistons stock and oversized?


Thanks again for the advice to keep my girl alive and not give up!

Mark
 
Well you could just send to me, I could rebuild it for you, again, while I used to talk to dealers throughout the US daily, I'm not familiar with any good rebuild shops in your area. Boring is $50 a hole. You want to make sure you find a quality engine guy to do the rebuild. If you can't I would do it for you with a one week turn around.

And you have to be careful buying those aftermarket parts like Wired had listed, BRP pistons are available for your engine, and they are 102.99 ea. 396588 is the number. You can also get the Hi Silicon pistons from BRP which we used in the commercial engines, those would be 396585.

Since you may want to change one head already, we could throw a set of 140 heads on it, give a call I'll be in the shop all day, 847 356 3245
 
Well the cross flow engines are also called "deflector" engines, for good reason, the reason for the big humps is they do just that, deflect. The intake side has a sharp shape to turn the intake charge up to the combustion chamber. The exhaust side has the shallower side so that after combustion, the charge is directed towards the exhaust ports, as the fresh intake charge is coming in behind it. If you took the delectors off, the intake charge would just go right out the exhaust.
 
Bill Gohr said:
Well you could just send to me, I could rebuild it for you, again, while I used to talk to dealers throughout the US daily, I'm not familiar with any good rebuild shops in your area. Boring is $50 a hole. You want to make sure you find a quality engine guy to do the rebuild. If you can't I would do it for you with a one week turn around.

And you have to be careful buying those aftermarket parts like Wired had listed, BRP pistons are available for your engine, and they are 102.99 ea. 396588 is the number. You can also get the Hi Silicon pistons from BRP which we used in the commercial engines, those would be 396585.

Since you may want to change one head already, we could throw a set of 140 heads on it, give a call I'll be in the shop all day, 847 356 3245
Click to expand...

Bill, Life has been busy these past few weeks. sorry for not calling. Will do someday soon to chat about options.... 140 heads you say???? hmmmm...
 
You just need to fab up a mounting bracket or use a factory bracket.
 
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