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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    racerone got it. Time will tell if the work I did will hold up. thanks again
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    racerone, as per my last 4-5 message/contacts, I put it back together today and barrel tested - seem to work ok. LU didn't want to close up tight, about 1/8" gap, but that disappeared with tightening the two nuts that hold the lower unit together with the exhaust column. Hopefully all is well...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Hi racerone, Update Your thoughts please, Decided not to pull the cylinder top water jacket, or the exhaust plate assembly. Hoping that there are no stoppages or problems there. I’m assuming I got the shift rod back in normal position – One position turning the drive shaft clockwise, causes...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Hi again Racerone, Fish are biting, boats not moving. Decided to bite the bullet and order parts and charge into it. If interested, the attachment shows parts ordered and what I plan to replace and other info. Parts not on the order list means I'm re-using old parts. You're advice please...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Racerone, Just checked - I could not find one. I re-measured the ID of the old one, for the unteenth time and as always, it varies a little. This time In got somewhere between 29.3/64th and 29.5/64" or on the 10th s scale .0456 to .0457" Not sure which direction to go given the precision of...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Hi Racerone, correction of my previous note of "updates" of Yesterday. I tried to measure the actual drive shaft at the impeller mounting point where iy flares out. Hard to caliper, but I got a little different reading. Drive shaft at flare out came up at 0.4575 to maybe 0.4578". I did this...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Racerone, update: Pulled power head off of bottom cowling, cleaned up both halves in prep for new install of gasket. Removed all seals, spacers that would come out from shift rod, drive shaft and water pump including the Stainless/chrome impeller basket on the lower 1/2 of the water pump. Al...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Thanks, good to know. Is there any reason to pull the head off - or the exhaust plate to check ports/water channels there?? thanks
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Hi Racerone, Wow, I would have never guessed that. Obviously, there is enough water pressure involved that allows water to exit the telltale tube, making the telltale just an indicator that the pump is working, but not necessarily that there is adequate water volume and circulation to cool the...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Thanks Racerone. I was hoping not to have to go that far into it, but given what appears to me to be an obvious major leak some where near or in the bottom of the power head, or lower engine case it looks like no choice. At the same time, I guess I need to line up all the names/numbers of seals...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Roscoe and Racerone Thanks for the lead on the parts and the heads up on the washer/seal at the end of the copper tube. The seals/washers etc where the copper tube attaches to the bottom plate in the power head area.....do I need to disassemble the driveshaft housing from the bottom plate? or...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Roscoe, hello again I air tested the remaining cooling tube system and noticed that air is leaking out inside the drive shaft tube. If I blow air into the copper water tube at the point where it would normally hook up with the water pump, it freely comes out the pee tube but you can hear a...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Hi again, didn't need the tub of water to test in - like putting sights on a shotgun when your shooting 3' in front of you at a watermelon! I doubt I had 2-3 # injected continually into the LU and you could feel the air coming out of the lower 1/2 of the water pump. The leak was big enough...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    Thanks roscoe, I think my air compressor regulator will throttle down to 4 # - I'll use that with the screw-in gear grease tube I use for refilling the gear case and jury rig a Rube Goldberg thig-a-ma-jig. If that fails, I see if I can wrangle one from my son if he has one. Any suggestions as...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    again, thank both for responding. I'll have to check tomorrow to see if my son has a pressure tester. (he is a mechanic for the city) Also I will get a service manual (PDF downloadable version). After the pressure test I can then order whatever seals are needed once I have the part numbers...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    My apologies to fumbling up you handle. racerone not razorone. No offence was meant. Replacement impeller should be I hope no problem, and good to hear about the "key". I was afraid that broke off from the shaft, or impeller or somewhere else. Is the water and water contaminated gear oil...
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    1972 merc 110 Blue Stripe hood, Ser# 3267158 Exhaust/Steam? coming out taletail

    razorone and roscoe Hi, not sure how to answer all comebacks with one message, so I'll just choose one to respond to if that works. I removed lower unit (LU) and made the following observations and discoveries – sorry this get so long, but I’ve found out in the past that some of the smallest...
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