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Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 3728
Experience:  US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
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How do I repair the power trim oil leak on my 2005 verado 250

Customer Question

How do I repair the power trim oil leak on my 2005 verado 250 ser 1b119970
Submitted: 2 years ago.
Category: Boat
Expert:  Charles replied 2 years ago.
Hello, my name is***** you for allowing me to assist you today.
Would you please post the serial number of the engine?
Where on the trim sys is the trim leak?
Customer: replied 2 years ago.
1B119970 it's leaking at the bottom of the power trim seal. At the base where it bolts on.
Expert:  Charles replied 2 years ago.
Would you say that it is leaking around part 21 in the diagram?
Customer: replied 2 years ago.
Expert:  Charles replied 2 years ago.
To make this repair, you are going to need to be able to support the engine while you remove part of the trim system, is that something that you can do?
Customer: replied 2 years ago.
I have a nice shop but picking up the motor is more than I want to do.
Expert:  Charles replied 2 years ago.
How would you like to leave the question that you have here?
If you want the instructions I can send them to you.
Customer: replied 2 years ago.
Ok do that. I was looking in to buying an OEM repair CD to help find the problem and it cost $150.
Expert:  Charles replied 2 years ago.
I will need to bring that manual home from the shop. I will grab it tomorow and post the directions tomorrow night.
Customer: replied 2 years ago.
Did you get the directions?
Expert:  Charles replied 2 years ago.
Trim the motor up and put it on the trim lock. Bump the trim switch the other way to relieve the pressure on the system.
Fish the trim wires out of the cowling.
Remove the two tri-lobe pins from the trim rams. Remove the two screws securig the trim sender in place.
Use the screws to remove the sender.
Remove the snap rings from the Port and Stbd side.
Thread a 6mm screw with a washer into the STBD pivot pin. Pull against the bolt to remove the pin. A slide hammer works best for this.
Remove 5 of the 6 screws from the bottom of the trim unit.
Sujpport the nit as you remove the last screw. Pull the trim wires out if the mid housing.
then you can replace the o-ring that is leaking.
If you have any questions please let me know.

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