1974 Evinrude 135HP

Joe-1709

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39
20181129_105128.jpg#1
 

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Joe-1709

Seaman Apprentice
Joined
Oct 29, 2017
Messages
39
For the stator question it measured
​605 between 2 brown and 1.4 between 2 yellow​​​​​​.

Crankshaft looks good.

I measured cyl #1 and cyl #2 with the T tool and a caliper. Have 3.5" + 4/128 that is 3.531
That is not accurate but it is what I have before moving to next step.

After looking at my 4 pistons I am like discureged.
also cylinders are not bad as the pistons but they are already to their max standard bore.

​​​​​​It looks like going to bigger bores and pistons! 2k
Or
To Scrap yard

hmmmmm.
Wannabewelder, these engines and used ones are very difficult to find on the market here.

Did not find a rebuilt working engine to buy.
Found under assambely 2007 rude for 7k at marina one season warenty. (Not rebuilt and no information on powerhead bores and pistons)
Found 1997 rude under assembly for 3k. 30 days warenty. ( not rebuilt and no info on powerhead )

! $^! $&!$&!$&€9':÷!/×
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,033
I can not count how many times I have seen damage like that on those V-4 crossflow engines.-------Lots of those blocks available where I am.
 

Joe-1709

Seaman Apprentice
Joined
Oct 29, 2017
Messages
39
Now i understand when you say if one ring is broken the others are not far apart.
 

Joe-1709

Seaman Apprentice
Joined
Oct 29, 2017
Messages
39
#2 walls look like brown rust. Should they be rust where it is oil lubricated?
only on one cyl?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
36,033
Water has a way of working into motors.--------Bad gaskets / cracks in block / condensation when submerged at the dock all season long.
 

wannabewelder

Seaman
Joined
Aug 10, 2018
Messages
71
In the future, if you do a wet comp test, put the cylinder at tdc, engine tilted so it doesn't pass through intake/ex ports and add some oil not too muck. Turn it over w/p plug, then add a touch more. Comp it and if your compression comes up then rings will help. That's the low tech method. You need each to be within 5%. If you were trying to sell that and the buyer showed up with a comp gauge at 125 psi in one hole over the others @ 130 it's game over.
I knew the piston was trashed when you found a piece of the ring.
Now, go buy a motor that has an electrical issue etc, take comp gauge with you or take a chance. Don't pay more than $200 and get yourself a head.
Here is an example of what I just bought: Engine runs but won't idle. Marina rebuilt carbs, I'm tired of spending money.

Fuel pump was bad $15 fixed it.

Next one: 2 guys comped it on a rope and said 115 psi was low. Yup. Fixed the choke wire it ran
Next one: Not sure how it starts...put gas in and turn key.
Age of the motor not important. How it was used/ maintained is.

Go buy a complete motor with some extra spares.
 

wannabewelder

Seaman
Joined
Aug 10, 2018
Messages
71
For the stator question it measured
​605 between 2 brown and 1.4 between 2 yellow​​​​​​.

Crankshaft looks good.

I measured cyl #1 and cyl #2 with the T tool and a caliper. Have 3.5" + 4/128 that is 3.531
That is not accurate but it is what I have before moving to next step.

After looking at my 4 pistons I am like discureged.
also cylinders are not bad as the pistons but they are already to their max standard bore.

​​​​​​It looks like going to bigger bores and pistons! 2k
Or
To Scrap yard

hmmmmm.
Wannabewelder, these engines and used ones are very difficult to find on the market here.

Did not find a rebuilt working engine to buy.
Found under assambely 2007 rude for 7k at marina one season warenty. (Not rebuilt and no information on powerhead bores and pistons)
Found 1997 rude under assembly for 3k. 30 days warenty. ( not rebuilt and no info on powerhead )

! $^! $&!$&!$&€9':÷!/×

Throw your T gauge in the garbage. It needs to be dial indicated.
I hauled i n 4 of those engines in the last 3 weeks, 3 ran, 1 had broken crank. $200 was the most I paid. Type in your HP and search boats in classifieds. Buy the whole boat if you have to. There was a Merc 110 or so here $500 boat, motor, trailer.
Personally I'd be careful with ebay powerheads in pieces. People usually dont take things apart that run.
 

Joe-1709

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Joined
Oct 29, 2017
Messages
39
I would not be looking to sell my defective engine to someobe else!
I am looking for one for parts for a while.
other then the lower unit cross-reference is their interchangeable blockhead charts/ years or it should be the same year and hp?
 

wannabewelder

Seaman
Joined
Aug 10, 2018
Messages
71
there is a lot of interchange there. You need to look up your model # and then the model # of the one you are looking at to purchase.There are some HP interchange as well. Your gearcase would be $500-750 easy. So like I said go buy one for $200 and fix it or fix yours and get your $$ back plus some.
 

Joe-1709

Seaman Apprentice
Joined
Oct 29, 2017
Messages
39
TX guys.
will do my shopping and send feed back.
Enjoy the upcoming holidays​​​​​​.
 

Joe-1709

Seaman Apprentice
Joined
Oct 29, 2017
Messages
39
Hello guys.
I decided finally to forget my 1974 Evinrude 135hp and look for a newer one.
Thank you all for your helpful guidance.

will be looking for outboard weight Charts for my 1907 Starcraft. Anyways that is for another discussion.

Wish you all a wonderful 2019.
 
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