Recent content by Dave G.

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    What Are These?

    That bracket looks like it would be used to mount something to the safety rail maybe ?
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    M25 Blowing smoke at half throttle

    Question Kevin, was the engine pulling load fine before you R&R'd the head & replaced the valve guides ? If so I would think the odds of a ring going bad during that process is remote. I would check adjustment on decompression assembly first. If that checks out then pull the head and check that...
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    M25 Blowing smoke at half throttle

    Kenneth thanks for the tip on using the return line for fuel drain. Never thought about it and that's a keeper ! Not sure where Kevin the OP has gotten off to. I'm guessing he solved it or is busy taking the head back off ?
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    M25 Blowing smoke at half throttle

    The transmission & alignment can be checked for friction/binding by just putting in neutral and rotating prop shaft by hand. If you can rotate it fairly easy by hand then I would think you need to look elsewhere for the issue.
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    Disengaging Gerhauer vang to remove boom

    Mine is a spring loaded vang but may work similarly. I lift the boom with topping lift until the load on the vang is relieved, then pull the pins and remove the vang. I can't tell from your pics if there are adjustment/stop pins on the vang ? Seems like there has to be or it would be pretty...
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    I may seriously consider this hot water heater sale...dimensions are right, price is right:

    I looked at these too, Scandvik sight says inner tank is carbon steel with a coating ? File attached..
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    M25 Blowing smoke at half throttle

    It sounds like it could be a compression problem if it doesn't have power under load. My guess is something went wrong with the replacement of the head and or gasket. Black smoke is unburned fuel caused by lack of complete burning also symptom of low compression. Also check that your...
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    I hadn't thought of aftermarket change although I don't recall the cabin top having molded traveler mounts. I guess the listed year could have been incorrect, I never got serious enough to even verify the HIN. Yeah it's all very interesting how the change happened, Frank's was built only five...
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    Mine has a bridgedeck traveler. Built 19 boats before yours. I'm thinking these were options not necessarily a date thing as I saw a listing for a 85 model with the traveler on the bridgedeck but who knows. Are your bolts 1" or 3/4" ? Is your engine original ?
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    That is good to know. I presume you also have a 5416 ? Did you use the same type motor mounts ? Do you have a 2 or 3 blade prop ? Totally changing the subject, I was reading up on keel rebedding and came across Frank Langer's posts and pics about same. He said that he had 7 1" keel bolts on his...
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    Attached is the SigmaDrive Brochure. It does have some dimensional info but if interested I would contact AB Marine, https://www.ab-marine.com I think for most of us the model would be the SD55. I first have to reengineer my motor mounts....
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    So I just got a call from Geoff at AB Marine and he claims it doesn't add any length to the driveline as it indeed takes the place of the coupler and the shaft goes into it just like the coupler. He is supposed to send me some docs so when he emails those I'll try and post them here.
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    The Sigmadrive appears to replace the coupler entirely and bolts direct to transmission and the shaft goes into the drive unit. I don't think it adds more than an inch to the total length. I am waiting on an inquiry regarding tolerances as I have minimal space too.
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    I have looked at those on line but have yet to find any real reviews. They're a little pricey($600 for the SD55) but they also will fit in tight places and seem to be well engineered. They claim to be very forgiving on alignment tolerances up to + or - 3 degrees which is a real plus too...
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    Puzzling about engine alignment, motor mounts, engine weight in rough seas

    Very nice work John. Definitely need to do something similar as the original design is almost laughable. I would like to incorporate a positive horizontal/lateral adjustment so you can actually fine tune and don't need to rely on a long lever to slide the mounts. May just need to add a couple...
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