Fuel Stabilizer/Grease Type For Power Trim

[pilgrim52946]

I own a 1975 50hp Evinrude outboard which runs fine for the most part but i do have a couple of questions which have been nagging at me lately.
1. Given the age of the motor should I be adding a fuel stabilizer along with the oil mix when I fill the tanks and how much if I need to? Each gas tank is 6 gallons. I do use high test fuel for the motor not regular as it's been suggested.

2. This question concerns the power trim. I noticed a grease nipple on the power trim lift the other day and was thinking maybe I should grease this. But as I have the motor winterized at the marina you would think they would do this as a routine thing but maybe not. It's the original lift and works fine so far, but is there a mix of grease and some type of oil for the push rod for lifting the motor up and down or is it just grease only?
Anybody know the answers to these questions?
Thanks

 

[Al-53]

Re: Fuel Stabilizer/Grease Type For Power Trim

I use a fuel stabilizer in every fill up...I use Sta-bil Marine...plus for winterizing it also.....I don't see a need for hi test gas....no benifit...u gain no performance from it...octane is a anti knock compound...

the octane rating, which is a measure for the anti-knocking properties of gasoline. The octane rating is not directly related to the amount of octane contained in the gasoline.



use the amount of stabilizer according to the product....

your wallet will like you now using 87 octane gas....lol......

Al

 

[pilgrim52946]

Re: Fuel Stabilizer/Grease Type For Power Trim

Thank you A1-53 for your input on the fuel stabilizer and your advice on the gas, high test verses regular fuel. Once I figure out the ratio for the gas stabilizer I will go back to using regular, there was something that just didn't set right with me on that subject either. It was suggested I use the higher test because I guess according to their way of thinking it already contained the stabilizer so I wouldn't have to add more I guess. Not so, just a higher octane.
Thanks again

 

[Al-53]

Re: Fuel Stabilizer/Grease Type For Power Trim

your Welcome

here is the ratio for the Marine Sta-Bil

How much MARINE Formula STA-BIL? should I add to fuel?
A: For everyday in-season engine performance improvement and protection, use 1 ounce (30mL) in every 10 gallons (37.9 L). For seasonal storage and for fuel system clean-up, use 1 ounce (30mL) of MARINE Formula STA-BIL in 5 gallons (18.9 L). Again, over treatment is safe and will not harm engine.



Also as far as the grease nipples...when I hit the trailer wheels I shoot a bit in the motor nipples also....

as far as the tilt trim on mine I use Auto Tranny fluid Dextron ATF....I would inquire what yours takes so you know incase you have to fill it on the road some time when boating

Al

 

[pilgrim52946]

Re: Fuel Stabilizer/Grease Type For Power Trim

Ok Al,
Given the fact that I use (2) 6 gallon tanks I would use roughly 1/2 ounce in each tank based on your advice of 1 ounce for 10 gallons the difference being that I have a total of 12 gallons. I could add a tad extra I suppose.
As for the power lift after inspection it has only 1 nipple for grease. I don't see anywhere that I can put any type of liquified fluid such as tranny fluid for example although you would think so. I see that the lift needs grease for the berrings etc but you would think that the rod that moves the outboard up and down should have a place to put fluid or a fill cap of some sort. This motor and lift is know spring chicken, they are both 1975 models (originals). I will keep looking though,I might have missed it somehow.
Thanks again, Joe

 

[14ftgrumman]

Re: Fuel Stabilizer/Grease Type For Power Trim

I use SeaFoam, not Stabil. Cleans and takes care of any moisture that might collect. And will keep gas fresh for 1 year.

The hydrraulic pump for the T&T has a plug or knurled knob on the side. This is where the fluid level is checked with the motor in the full up position. Put in enough fluid so that it is level with the hole. Use OMC/BRP Tilt and Trim fluid or Dexton II automatic transmission fluid. After initial fill, cycle motor up and down 5 times, and re-check level, add as necessary. This process bleeds the air out of the system.

Use a good marine or waterproof grease on all fittings.

 

[pilgrim52946]

Re: Fuel Stabilizer/Grease Type For Power Trim

Thank you 14ftgrumman for your suggestions, I wasn't aware that there was a plug or nob like that on the power lift but I will definately check it out and take care of it.
I will also look into this seafoam you are talking about, I'm assuming it acts somewhat same way that the stabilizer does but apparently better? I'll look into it as well.

 

[Chris1956]

Re: Fuel Stabilizer/Grease Type For Power Trim

It is always a good idea to pump grease into the grease fittings, a couple of times a year, especially in salt water. Power trim units usually use auto transmission fluid. Change the gear oil at least once/year as well. Twice is better.

Use of stabilizer or seafoam or any other kind of additive, at each fill up, is unnecessary and a waste of $$, IMHO.

Fuel stabilizer has some value for storing the motor over the off season.

 

[bigrockets]

Re: Fuel Stabilizer/Grease Type For Power Trim

My motor ran fine until I put the blue methanol stabilizer in a tankful of fuel at the insistance of my marine parts store staff. They were pushing the stuff like crack dealers to anyone who would listen. So after rebuilding the carbs, changing the fuel filter twice and draining and disposing of 8 gallons of fuel to all my friends and neighbors with weedwhackers the boat runs fine again. Fuel stabilizers are a way to get you to buy new parts for your motor and not have your boat available for a few weekends. The boat has been running fine and I will not use any additives ever again.