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  1. M

    Acrylic windshiled crack repair

    1971 runabout with a two piece formed acrylic windshield has developed two cracks. I suspect stresses from snow loading is the cause because this boat is 41 years old and the cracks just formed this past winter. The cracks are about 4" long and located in the curved portion of the windshield. I...
  2. M

    I'm going to need more floatation foam .............

    and a trap. Just uncovered the boat from its winter wrap and found this crumbled white mess all over the floor. Odd I thought, I'm sure I had thoroughly cleaned it before covering it for the winter. Soon it became apparent that the white mess on the floor was small bits of floatation foam. I...
  3. M

    Montana/Venture front strut replacement

    This is on my to-do list very soon. I've done struts before but this job looks daunting. The upper strut mount bolts are buried back under the windshield cowling, in behind the windshield wiper linkages. Any words of advice or wisdom from the members here?
  4. M

    Drilling out a broken bolt ..... or so I thought

    Needed to remove the windshield wiper linkages from the van to get access to the upper strut mounts tucked back under the windshield cowling. Broke the head off a bolt fastened into a tapped hole in a casting. No problem I figure, I'll just drill it out and re-tap the hole. Done this numerous...
  5. M

    1979 merc outboard trim

    Re: 1979 merc outboard trim As luck would have it, I found it right away.
  6. M

    Lost my friend and companion of 14 years yesterday

    Jake was a black lab cross who we adopted as a pup at 5 months old. That was 14 years ago. We were so fortunate to have chosen him (or maybe he chose us). He was the best behaved, well mannered dog anyone could have asked for. He was truly a member of our family who traveled with us, played...
  7. M

    Waterpump Conundrum - 1971 Merc 800

    Started out trying to find out why I was getting water in the LU. Dropped the LU and did a pressure test that showed a leak at the base of the waterpump. So I took the pump apart and pried up the base. What I found shocked me. The wrong base was installed. The collar that fits down inside the...
  8. M

    Bad prop causing slow speed? NOW WITH PHOTOS

    Re: Bad prop causing slow speed? Re: Bad prop causing slow speed? One more photo. Wondering if this affect is the result of cavitation? Could that affect the performance of the prop? Is it possible that it is "slipping" more than it should?
  9. M

    Bad prop causing slow speed? NOW WITH PHOTOS

    Re: Bad prop causing slow speed? Re: Bad prop causing slow speed? Took a few photos of the prop. I don't believe it is cupped.
  10. M

    Bad prop causing slow speed? NOW WITH PHOTOS

    This is something I've wondered about for the last couple seasons. I've got a 1970's vintage 16ft deep V fiberglass hull with an 80hp Merc and a 17" pitch prop, and at WOT (nearly 5800rpm) I can only get about 25-27mph on a good day - GPS verified. The boat/motor/fuel/gear/passengers etc weighs...
  11. M

    Insurance question for Canadian Boaters

    Recently changed the insurance company for my house and auto insurance. Old insurance company provided coverage for my boat under the house policy. New company is MUCH MUCH cheaper but does not provide coverage for boats older than 25 years. My boat is going on 41 years old. Now I need to find...
  12. M

    Need older Merc 800 waterpump replacement numbers

    Have a 1971 Merc 800 that is in need of a new waterpump. The impeller was replaced 3 summers ago but the base housing and upper housing were not replaced then. The seals in the lower housing are shot. Want to replace the entire pump assy (upper, lower, impeller, gaskets etc) but having trouble...
  13. M

    Power Trim & Tilt for 1978 Merc 115HP Inline 6

    Re: Power Trim & Tilt for 1978 Merc 115HP Inline 6 Hopefully this will help.
  14. M

    Adding aftermarket VOLTAGE REGULATOR - anyone actually done this ???

    Re: Adding aftermarket VOLTAGE REGULATOR - anyone actually done this ??? So the rain held off long enough to get it installed but haven't had a chance to try it yet. Here are a couple photos of the installed regulator. I applied a coating of heatsink compound to the case of the regulator...
  15. M

    Co-worker nearly drowned. Wasn't wearing a PFD

    Past weekend, a coworker "Frank" had taken his new-to-him boat out for a solo cruise. Motor overheated and stalled. Another boater offered to tow him into the marina and he made his way to the bow to tie off the tow line. Once underway, he decided to return to the cuddy cabin because it was...
  16. M

    Voltage regulator questions

    Posted a thread in the Merc section but not getting much attention (http://forums.iboats.com/showthread.php?t=470908) so thought I'd ask here instead. Short story, I've got a 1971 Merc 800 that does not have a factory voltage regulator. The stator is rated at 9A, and while running at 1/2...
  17. M

    Lower unit pressure/vacuum test question

    1971 Merc 800. Had my lower unit completely apart last summer to replace the driveshaft, shift cam and cam follower, clutch dog and reverse gear. Replaced ALL the seals and used thread sealant on the carrier nut threads. After running the motor for about 12 hours I discovered about 1/4 cup of...
  18. M

    tilt and trim question early 70's style???

    Re: tilt and trim question early 70's style??? Gomer, the normal operation of that switch is not exactly as you described. Trim down/in = bottom button Trim up/out = middle button only TILT up = middle AND top button On the original install, there was a trim limit switch in the starboard trim...
  19. M

    14 day Tornado prediction - seriously ???

    Watching the weather channel tonight and during the segment, the forecasters were predicting as many as 300 (300) tornadoes over the next 14 days throughout the mid eastern USA. Holly crap :eek: Not sure how they can be so confident about a 14 day forecast like that when they can't predict what...
  20. M

    Adding aftermarket VOLTAGE REGULATOR - anyone actually done this ???

    I've read on these forums many discussions about needing / adding a voltage regulator to an older Merc (1971 Merc 800) but no information from anyone who has actually done this successfully. I constantly see voltages of 17V while running and it has not caused any issues YET, but I'm not...
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