Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Since I purchased this boat, all i have heard is sell it-sell, due to the OMC brand, is this the brand of the engine or just the outdrive? As I like this boat, bought to take my son fishing, its in good shape. When I bought this boat, the engine ran great, engine raised and lowered, all i did was change plugs, am also looking for a pump to draw out oil to no avail. The problem i am having is now I can't get the engine to go down, it would just click, so I changed both selonoids for up/down, blue wire-up, green-down supposedly, I changed all the battery fittings for both batterys and charged them full, all it does now is click at the solenoids when the switch is engaged left and right, I'm at wits end. As the tight confines of the area restrict following these wires, its difficult to go from here, assuming that the blue/green feed goes to a motor for this function, has a removable on the outdriveAny ideas? Does anyone know any links or if a manual is avail for this engine/boat? Any usefulll info would be greatly appreciated. Also, as I can't even start it with the engine up, I was hoping to change the lower unit oil, at the store they sell lower unit oil and lower unit lube, which one is correct? Is there a way to search this forum for my needs, tried search box just gives me 3.0 info but no OMC. Thank You for your review.
 

tommays

Admiral
Joined
Jul 4, 2004
Messages
6,768
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

A service manual is a must there is a place Ken Cook that has orginals or quality copys

I have to ask you do you repair your own cars ?

Tommays
 

Reel Poor

Vice Admiral
Joined
Jan 29, 2005
Messages
5,522
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

Have you checked for voltage to the blue and green wires when the switch is triggered ? Positive voltage to blue wire and negative voltage to green wire run the motor in the up direction. then by reversing polarity positive voltage to green wire and negative to blue wire runs the motor in the down direction. Before applying direct voltage to the wires disconnect them from the selonoids. If the motor will not run with direct voltage applied you have a tilt motor problem.
 

Boatin Bob

Lieutenant Commander
Joined
Sep 24, 2001
Messages
1,858
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

First it would help to know if this is a Cobra drive (hydraulic trim rams on each side of drive) or a Stringer (big black rubber boot around the outdrive) or can you post the engine model # of the plate on the rocker cover or T-stat housing?
 

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

Boatin said:
First it would help to know if this is a Cobra drive (hydraulic trim rams on each side of drive) or a Stringer (big black rubber boot around the outdrive) or can you post the engine model # of the plate on the rocker cover or T-stat housing?
 

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

as it has the large rubber gasket as you describe, i would assume a Stringer
 

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

tommays said:
A service manual is a must there is a place Ken Cook that has orginals or quality copys

I have to ask you do you repair your own cars ?

Tommays
 

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

yes, I do most all repairs except trans rebuild.
 

tommays

Admiral
Joined
Jul 4, 2004
Messages
6,768
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

Thats GOOD if you know you way around a wrench you should be able to do the repiars with the service manual as a guide


Tommays
 

Gary H NC

Fleet Admiral
Joined
Dec 1, 2005
Messages
8,972
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

About the pump: I think i posted this before but call Napa,See if they have a Balkamp drill pump#770-5029....very cheap way to suck out the oil. changes mine in about 5 minutes..8)

Also on your trim..it is green wire UP blue wire Down...
 

Charles Bush

Cadet
Joined
Aug 9, 2006
Messages
21
Re: Please Help!! 86' Renken 19.5ft 3.0 OMC Cuddy

tommays said:
A service manual is a must there is a place Ken Cook that has orginals or quality copys

I have to ask you do you repair your own cars ?

Tommays
 
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