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    Cylinder Head 58 Evinrude 25936

    Re: Cylinder Head 58 Evinrude 25936 I found a nice piece of 1/4" glass plate. I cut it to size tape a sheet of 230 grit sandpaper to it and will use it to lap the block surface and I will re do the head too. I made a couple of cardboard plugs to seal up the bores when I surface the block...
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    Cylinder Head 58 Evinrude 25936

    I am about finished the restoration of my father's old '58 Alumacraft and the 58 Evinrude 35. I went over the motor installed new waterpump, points, condenser and rebuilt the carb. The motor was in good shape after having been stored since 1996. I gave the cylinders a liberal dose of seafoam...
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    1958 35 hp Return to Service after 15 years

    I am about to complete the restoration of my father's old Alumacraft Deep C and the 1958 Bigtwin 35 (25936). I seem to have an electricial issue that keeps it from cranking. During the restoration I rebuilt the carb. removed the head to inspect the water jacket and cylinder head gave the motor...
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    77 Evinrude 70 HP failure

    My 77 Evinrude 70 HP (70773S) failed yesterday. Did not overheat but I believe that there must have been a cracked ring in cylinder #2. The motor was running well at 3/4 throttle when it gradually lost RPM and quit. Starter would engage flywheel but not spin the motor. Attempt to turn...
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    OMC 1.6 Seadrive V4

    My son called me and asked me about a motor he saw in a late 80's Renken bow rider. I have not seen it but he described it as and OMC V4 115 HP mounted on a support off the back of the Renkin's transom. What is he looking at? I have never seen an OMC in anything but Evinrude/Johnson paint...
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    Junction Box Cover Decal

    I am well into the restoration of my father's 1958 Alumacraft Deep C and the '58 Evinrude Bigtwin 35 (25936) that moved it along. I want to re decal the electric starting junction box but have no luck in finding off the shelf decals for this. My old box cover decals were non existant by the...
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    3.5 Nissan

    My first non-OMC motor is a Nissan NS3.5B2 Serial#42573. Compression 125 and very clean. Spark plug condition shows excellent combustion. Was last serviced by marina shop in 2012 for general tuneup. Aquired by wife from co-worker. Coworker tired of pulling starter rope and bought an...
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    1958 35 hp Return to Service after 15 years

    Re: 1958 35 hp Return to Service after 15 years I am going to try a picture or two
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    1958 35 hp Return to Service after 15 years

    I am in the process of returning my 1958 Bigtwin 35 hp (25936) Evinrude to service after about15 years in the garage. When I last used the motor in 1997 I finished off the season by squirting outboard motor oil in the cylinders through the two spark plug holes and slowly turning the flywheel a...
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    1977 70773S Bog and Idle problems

    I have really enjoyed the information on this forum and usually use the search before posting a question. My motor a 77 70 hp Evinrude is the best motor I have ever had. The compression on all three cylinders is 120 psi at operating temperature and the thing runs fast, smooth and easy at wide...
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    2005 Yamaha F75TLRD Telltale seems to be plugged

    My brother in law had me take a look at this Yamaha 4 stroke 75 hp engine last fall. He said that the tell tale had gradually stopped working. He asked me to replace his water pump. The old pump was in good condition but being six years old I installed the new one. The motor started and ran...
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    Moisture in Cylinder (s)

    I have a 1977 70 HP Evinrude (70773S). I was getting ready to install a tell tale to monitor water pump function. I pulled the head to look into the water jacket for the best place on top for a fitting and got rather bummed, The top and middle cylinder had a light rust film. The bottom...
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    77 Evinrude 70 Cooling system.

    I recently got a 1985 15' Henry O Challenger with a 77 Evinrude 70. Both motor and boat were very clean at it was evident that they were maintained way. Both boat and motor were well cared for over the years. The PO last used it 15 years ago and it sat in his garage until I came along. It...
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    Henry O McKee Challenger 15'

    I am looking at a garage kept Henry McKee Challenger. I want to make the guy an offer but neither of us know what is fair. It is in excellent condition as is the 70 hp Evinrude outboard. Does someone know the value. I've always heard this was a top quality boat. Thanks Tony
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    1972 Evinrude 60

    Can one of you OMC gentlemen tell me about this motor. 1972 Evinrude 60 hp. Number of cylinders, reliability etc. My son and I are going to look at one in running condition but I am not familiar with the model at all. Thanks Track
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    1958 Evinrude Price

    Could someone speculate what a 1958 Evinrude Bigtwin 35 Electric Start cost when new? Thanks Trackbolt
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    1958 Open C

    If it was a snake it would have bitten me... This section of the forum that is. Alumacraft my favorite boats. I am restoring the 1958 Alumacraft Model Open C my father bought new in 1958. This has been a salt water boat and the restoration has been a challange but is proceeding well. The...
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    1958 Alumacraft

    I have been moving along with restoration of our old 15' Alumacraft. I would like to share my progress as I go. Not being nearly computer savvy as I am with a wrench and hammer I need some help in adding a link to Shareaproject to my signature line each time I post to the forum here. I have...
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    58 Evinrude Bigtwin 35

    I was tinkering with our old '58 Evinrude Bigtwin 25 this afternoon and my son reminded me of something that he noticed the last time we used the motor in 1997. He pointed out an area below the powerhead behind the steering kingpin where he had noticed an olily streak running down the leg. He...
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    Volvo AQ 125 coolent pump

    I am aware not to use automotive parts on marine engines but I have a question about the coolent pump on the Volvo 4 cylinder. The housing on the marine engine pump is different than the automotive pump housing. Using a five ton press, I have pressed out the leaky guts to my old AQ 125 pump and...
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