1980 OMC 185 with 765HRS

[trdexpert]

I have a 1980 OMC 185 that was given to me from by my uncle. I took it out to the lake and ran good. Just had Idleling problems.

Sat for 5yrs..

Is 765hrs a lot on a Engine?
What can I do as Prventive Maintanance?

I will change the impeller this weekend..

Thanks!!!

 

[HighLineCBR]

Re: 1980 OMC 185 with 765HRS

I think most will agree that 750+ hours is a fair ammount but certainly with good maintenance you can enjoy many more on the water.

Since you already had it out after 5 year in storage you probably did this already, but heres what i would do first.

ENGINE
-Replace ignition, points, wires, spark plugs
-replace oil and oil filters
-replace all fuel filters
-replace all belts
-make sure all hoses are on tight and not cracked

DRIVE (I would pull it and inspect/replace the following)
-bellows
-gimbal bearing, replace or lube if still good
-u-joints replace or lube if appear good
-replace water pump impeller
-replace gear lube, watch for metal shavings in the oil when you drain

if all is good give her a good waxing and enjoy the rest of the summer!

 

[KRH1326]

Re: 1980 OMC 185 with 765HRS

These are the files that I supplied for the Adults only sticky. The links are gone now but the files are still there.

1964-1986 OMC sterndrive manual:

http://www.4shared.com/file/zF-DZrvB/1964_-_1986_OMC_Sterndrive_Man.html

1987-1998 OMC sterndrive manuals:

http://www.4shared.com/file/2Vy3uORd/1986_-_1998_OMC_Sterndrive_Man.html

1964-1998 OMC wiring diagrams:

http://www.4shared.com/file/K3ct2McS/1964_-_1998_OMC_Wiring_Diagram.html


Good Luck

 

[trdexpert]

Re: 1980 OMC 185 with 765HRS

I think most will agree that 750+ hours is a fair ammount but certainly with good maintenance you can enjoy many more on the water.

Since you already had it out after 5 year in storage you probably did this already, but heres what i would do first.

ENGINE
-Replace ignition, points, wires, spark plugs
-replace oil and oil filters
-replace all fuel filters
-replace all belts
-make sure all hoses are on tight and not cracked

DRIVE (I would pull it and inspect/replace the following)
-bellows
-gimbal bearing, replace or lube if still good
-u-joints replace or lube if appear good
-replace water pump impeller
-replace gear lube, watch for metal shavings in the oil when you drain

if all is good give her a good waxing and enjoy the rest of the summer!

The engine part has been done, just need a carburator adjustment..

What type of "GEAR OIL" should I use?

Impeller will be done hopefully this weekend, if I have time. If not next week for sure!

 

[HighLineCBR]

Re: 1980 OMC 185 with 765HRS

I use Mercruiser high performance gear lube. works very well