1974 Sea Ray srv 190 trim help

JMSeaRay190

New Member
Apr 17, 2010
2
Cape Cod, MA
Boat Info
1974 Sea Ray SRV 190
Engines
302 Mercruiser 888
Hey guys,
I'm new to this forum, and I"ve searched with the problems I've had on my baot, and your help has gotten my 302 running. My trim will not operate. I've jumped the solenoid to make it work and that doesn't do it. I figure that the pump is bad. And as the pump is so rusted and if I work on it, I will break parts. I'm going to try and get a used unit off ebay. I had searched and found that there is a reverse lock out that is on the engine of my boat, and certain years have them on the trim unit itself, but now I can't find that thread again. Does anyone know what years I'm looking for to replace with to minimize alterations? Thank you
 
Hi JM,

I new here too. Still can't reply to my first post so we will see if this works. I have an old boat with a 1972 Merc 165 in it and it might be the same trim motor. Don't give up on fixing it, it might just need the communicator cleaned up. I just had success with my 1986 Alpha boat trim motor.

BTW, I get my info from a Seloc manual, I rebuilt my whole 1968 Aztec from it. Now working on a 1986 SRV 210.

Good Luck,

B.
 
I have a '74 240 and the trim didn't work when I got it. First thing I would do is to make sure you have power comming to solenoid. 2ed if power is present, Clean the connections. Make sure it is grounded good. The pump motor may need a cleaning. To remove it unhook the wires that go to motor. There should be a ground and 2 power wires. Remove the solenoid and the bracket that holds it. On top of the motor there is 2 long bolts you will need to remove. The pump motor should come off. You might need to tap on it to come lose. once it is off you can clean it and make sure the brushes are good and the armauter is clean. Use fine sand paper to clean the part where the brushes contact the armauter. It will be somewhat a pain to install the armauter onto the brushes but it can be done with some work. Reinstall it and try to 'jump' it at the solenoid. If it works then you just saved at aleast $100 bucks. If not then at least you tryed. I will post a pic in the morning so you can see if yours is like mine.
 
I have found that you have to check the ohms resistance on the outter case and motor... the motor and comutator looked perfect on a unit i worked on ( 79 205 srv) but there was a short and the resistance was all over the chart as i checked each surface between the mica. Out of about ten or twelve surfaces only 2 were the called for resisitance in the manual. so you have only a 2 out of twelve chance the motor will start when powered. also you can buy the motor and housing separately for around 50.00 each so check the ohms first.
 

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