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    yamaha 3.0 l4 blew head gasket help!

    You mean the block that is in front of alternator or the round top of the motor mount. In the mercruiser version I watched that block comes off and you can put belt in there but on mine the bolts are so long they won’t come out and to get them out I would probably have to raise engine in front...
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    yamaha 3.0 l4 blew head gasket help!

    Scott. Thanks for replying Hand grenade or gasoline seems easier at this point but I’m going to attempt it since I’ve come this far. What do you mean by the alignment and I don’t need to remove any other parts only the front center mount
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    yamaha 3.0 l4 blew head gasket help!

    Ok. So to be sure. Your saying take the center bolt in the mount loose or out and slightly raise the motor then Slide belt behind the mount or under mount. I don’t have to raise it high enough to get the side plate off to slide belt in like a mercruiser 3.0. ? That would be raising it like 5...
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    yamaha 3.0 l4 blew head gasket help!

    So I have to lift the front of motor up with hoist and slide belt under the mount ? Do I have to loosen rear ones too? Or just put wood block or something under the front I’m confused. Thanks. H
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    yamaha 3.0 l4 blew head gasket help!

    I saw a video on that but on mine of course the bolts are too long and hit the engine box so you can’t get that piece out ! I’m so over this engine lol.
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    yamaha 3.0 l4 blew head gasket help!

    I was able to take the riser off and make another gasket with a better material and it went together much easier. Haven’t started it yet because when it was running before I guess the alternator bracket wasnt tight enough & it broke the belt. I have another belt but having hard time finding...
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    yamaha 3.0 l4 blew head gasket help!

    Yeah I couldn’t get all the old out. I’m going to drain it and refill it with good oil. Adjust the valves and see how she does.
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    yamaha 3.0 l4 blew head gasket help!

    I started it a few minutes ago was loud. Smoking out at the outdrive and idling way too high like 2000 rpm. Only place I saw water was a tiny drip coming from the riser plate . In the middle of the back side where the nuts are instead of bolts. Still milky under the valve cover but not as bad...
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    yamaha 3.0 l4 blew head gasket help!

    Hey brother. I appreciate you expertise on my body motor. It’s been a job for sure so hard to get to anything and I’ve had some bad breaks besides impossible to get parts. I thought I was over the hump after fixing the broken bolt in the manifold and reattaching the riser ( I used red...
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    yamaha 3.0 l4 blew head gasket help!

    If I have to take it back apart I will make another gasket out of the material I bought . I’m getting really frustrated after all my work I’ve done and not being able to find gaskets and parts it’s just real frustrating! I tried to start it today with muffs on. It was real hard to start and...
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    yamaha 3.0 l4 blew head gasket help!

    I am using the old one on top of red permetex. There is no getting a new one. I bought 4 none of them fit and I checked with over 20 sources and was not able to find one. I didn’t want to remove the riser to make another one that’s for sure. I e been told by several mechanics that not much...
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    Yamaha 3.0 L4 181 ci carburetor linkage help

    Hey guys and girls if there are some on here, I am finishing up my upper rebuild of my motor in my pontoon boat and I neglected to take pictures of the linkage and I think I had it right the first time, but I broke a bolt off in the manifold so I had to take it back off again And now I’m not...
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    yamaha 3.0 l4 blew head gasket help!

    No the head had been machined. They did that. The one that broke was clean at the thread part. Just blew them out with air. I got it all back together today . Was a little messy with riser gasket not one piece but I used red gasket sealer on both sides and it went together good. Just have...
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    yamaha 3.0 l4 blew head gasket help!

    Yeah. I was able to find a spec torque sheet. The head bolts were 90ft lbs. 25 is not a lot and the bolts are grade 8 so shouldn’t have broke.
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    yamaha 3.0 l4 blew head gasket help!

    Thanks for reply. I’ve had some real issues with putting her back together recently. I’ve been doing it by myself and the manifold etc are pretty heavy and no studs on the head made that a chore I’d rather not repeat. ( spoke too soon ). I got everything back together & put fresh oil in was...
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    yamaha 3.0 l4 blew head gasket help!

    Is the engine circulating pump the one under the thermostat housing to the left of it actually. Runs off a belt from the pulley I haven’t checked either this one or the raw water pump not sure where that one is. I wasn’t having an issue with either when it blew head gasket it was from bad...
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    yamaha 3.0 l4 blew head gasket help!

    I was able to make my riser gasket. I’m looking for a diagram of the throttle linkage coming up from under the engine not sure how it’s supposed to go into the y piece mounted on manifold. Does it snap in and lock in place and if so where does the black rubber piece go into relation to the...
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    yamaha 3.0 l4 blew head gasket help!

    I've pretty much found everything gasket wise except for the riser elbow gasket its metal or something similar and its virtually non existent i have called , texted and emailed dozens of shops ,dealers and e bays sellers and no one can find the right gasket. i ordered 3 of them and they...
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    yamaha 3.0 l4 blew head gasket help!

    I found the thermostat gasket and it is paper so I could just make one. My biggest obstacle has been trying to find the exhaust elbow riser gasket. I’ve had people searching tried , eBay companies , wholesale marine , I boat , crowleys. Etc etc. cannot find the gasket they are all a little...
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    yamaha 3.0 l4 blew head gasket help!

    Thanks for the updated info. I will pull the outdrive and check the impeller. I found a kit that was OMC cobra that will work I’m told. My AZ local store is ordering me the thermostat so I’m just waiting on that & gaskets now. The thermostat gasket is something I’ve not been able to find...
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