IT IS ALIVE!! but a bit leaky

[sheboyganjohn]

Thanks to everyone on here. I have read many, many posts, and have posted a few questions. Had a chance to work on the new to me 1973 135 with a 115 powerhead. Replaced the coils (a couple were cracked) put new battery cables on, charged up the battery, and was able to get her to fire up after about 30 seconds of cranking. Once the carbs were full and it was warm I was able to just hit the key and it would start back up, even with the surface gap plugs. Sprayed the cylinders with seafoam and let it set for a couple hours. Was able to fire it back up after less then 5 seconds of cranking. Slight surging when cold at idle, but othewise it runs nice.

Have new plugs on order, along with some drain and fill o-rings. I checked the LU after running it on the muffs and there was water in the oil. When I bought the boat I had checked so many LU for oil at that point in time I cannot remember if it was clean or not.

Couple of questions. I found Citgo muli-purpose lower unit oil (which I drained and replaced the milky lower with). Since I have a mechanical hydrolic lower I need type C, this was as close as I could find. It says for type C applications also. Any issues running this stuff?

Next, if I do have a leaky lower, what are the usual suspects on this unit beyond the drain/fill seals?

 

[ezeke]

Re: IT IS ALIVE!! but a bit leaky

You need standard lower unit gear oil, high viscosity, 70-90. You can use any good name brand marine gear oil that is high viscosity outboard gear oil. Just about anything at Walmart is correct.

What is not correct is OMC/BRP premium, formerly A/K/A type C which is for elecric shift.

After the leaking fill and vent plugs, the most common leak is the o-ring seal on the shift rod. Next would be the driveshaft seal and last, the prop shaft.

The best way to tell which is leaking, before tearing into it, is to have pressure and vacuum tests done. Actual labor time is < 5 minutes but you have to wait an hour +/-.

 

[tx1961whaler]

Re: IT IS ALIVE!! but a bit leaky

Uuuuuh, he said it was a hydro-electric shift. Doesn't that use Type C lube?

 

[ezeke]

Re: IT IS ALIVE!! but a bit leaky

He said "Since I have a mechanical hydrolic lower I need type C, this was as close as I could find."

The 1973 135, 85 and 115 were hydro-mechanical shift, not hydro- electric.

 

[sheboyganjohn]

Re: IT IS ALIVE!! but a bit leaky

According to the factory manual it uses "OMC Sea-lube gearcase lubricant formerly labeled OMC type"C" ". I thought the hydrolic assist mechanical lowers also used the type "C".

And thanks for the normal leak points. If the drain/fill seals don't fix it, I will move on to the two easy ones, the shift and drive shaft seals.

 

[tashasdaddy]

Re: IT IS ALIVE!! but a bit leaky

sheboyganjohn, what is your model #, so we can setle this, 72 is hydro- electric and needs type C, 73 is hydro-mechanical and uses standard lower fluid.

 

[ezeke]

Re: IT IS ALIVE!! but a bit leaky

The factory manuals, designed for service personnel, were amended from time to time by OMC through the use of Service Bulletins.

One such bulletin, SB-#1394, dealt with the use of gearcase oils and changed the recommendations for the 1973-1976 models and earlier models with mechanical gearcases.

I still own and run an original 1973 135 Evinrude, so I have tried to keep abreast of the changes and recommendations.

OMC/BRP Hi-Vis oil is still sold and widely available but is gradually giving way to BRP HPF XR.

 

[sheboyganjohn]

Re: IT IS ALIVE!! but a bit leaky

TD it is a hyro-mechanical 1973. 135ESL73

Ezeke I did not know about the service update, I was just going by the original manual, so I stand corrected. I will have to print those off and put them with my records.

Thanks again.

 

[sheboyganjohn]

Re: IT IS ALIVE!! but a bit leaky

And I just checked the oil I bought, and it is a 85W-90 My guess is they were relying off the service bulletin and assumed that all type C was replaced. I wanted to add this in case anyone with a electric shift reads the label and think it is a full type C replacement. Here is the actual data sheet to limit any more confustion

http://www.docs.citgo.com/msds_pi/10015.pdf

 

[tx1961whaler]

Re: IT IS ALIVE!! but a bit leaky

The factory manuals, designed for service personnel, were amended from time to time by OMC through the use of Service Bulletins.

One such bulletin, SB-#1394, dealt with the use of gearcase oils and changed the recommendations for the 1973-1976 models and earlier models with mechanical gearcases.

I still own and run an original 1973 135 Evinrude, so I have tried to keep abreast of the changes and recommendations.

OMC/BRP Hi-Vis oil is still sold and widely available but is gradually giving way to BRP HPF XR.

Darn old 35 year old service bulletins....