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    Evinrude 70Hp bogging in the water

    Hi all, I put my evinrude in the water today and was still bogging down under load. Thing ran fine with muffs in the driveway. Pulled the fuel pump and found a tear in one of the gaskets and an extremely dried out rubber diaphragm. I'm ordering a new pump, but curious if any others have had...
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    Evinrude Tilt Trim motor

    Anyone with suggestions on what I should try next, let me know or send me a message!
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    Evinrude Tilt Trim motor

    Copy that is it the screws on the back? And in that case I have an extra drive coupler if anyone’s looking for one
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    Evinrude Tilt Trim motor

    Should I turn the release valve and try to push them in manually to free them up? And just to confirm- the oil pump only gets a drive coupler in one of the two holes not in both of them?
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    Evinrude Tilt Trim motor

    Does it need an engine on it to engage the trim rams?
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    Evinrude Tilt Trim motor

    They’re out currently. The unit is not currently on the boat. So the large tilt works but the trim rams are stuck in the extended position. It’s like the two smaller ones are seized in position. I’ve tried to remove the cap but it’s stuck and my spanner wrench wants to slip out before I can...
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    Evinrude Tilt Trim motor

    I got the replacement drive coupler and did a test. It moves the tilt cylinder but the 2 smaller ones don’t want to move. Are there 2 drive couplers or just one? I see two spots for them and I received two in the order off eBay but again I don’t know what I’m really looking at. Maybe just not...
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    Evinrude Tilt Trim motor

    I did. I just realized the drive coupling is missing. Never worked on these so thank you racerone. I will get a replacement ordered and check back. If anyone has ever done a reseal on one of these let me know where you sourced parts or a kit from.
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    Evinrude Tilt Trim motor

    Not sure what the drive coupling looks like. It’s a 2 wire. And yes the valve is tight.
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    Evinrude Tilt Trim motor

    Hi All, I recently purchased a 16ft StarCraft with a 70HP evinrude 2 stroke form 1978. Boat is awesome and motor is now running well. I found a tilt and trim unit on OfferUp and purchased a replacement motor for it on Amazon. I hooked it up today and added fresh atf. Battery tested it and the...
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    No worries. I will get this all sorted out. Just going to take some time. Thanks to all for the help
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    Alright I’ll look into it
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    When you say I need to “find the pads” do you mean that my motor photos do not show pads? Like they are missing and I need to find replacements? Or my photos don’t show the ads? I’m confused a bit. And I don’t know about the wiring, I will have to do more digging and ask you guys another 45...
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    Copy. I see two small circles but no pads
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    Not totally sure what those are but I’ll send a picture of underside of motor that faces transom
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    The two small metal rods? There are half circles on the notor that meet up with the position of these.
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    So essentially an engine hoist to hold it. I am going to rebuild it before install. Repaint and test hydraulics. Installing a new motor in it. Can I bleed the hydraulics and put in new fluid?
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    It looks like the correct unit… in terms of the 3 bolt holes and the way the 2 arms line up and land on the outboard shaft. I’m building a motor stand so I’ll get that done and pull it and try to install from the top
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    1978 Evinrude 70HP- Trouble starting/idling/bogging under load

    My manual arrived last night so maybe it will have information. You guys are a lot faster though for these kinds of answers!
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