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  1. S

    Mercury 1972 4 HP Bearing Carrier Tool

    I just picked a 1972 Mercury 4 HP - Can anyone tell me what bearing carrier removal tools I need to change the seals in gear case. Thanks
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    1965 Johnson FD-19 20 HP Cooling Isue

    I am concerned that my 1965 Johns 20 HP FD-19 is not cooling properly. Upon investigation I removed the thermostat cover an observed the water flow (see attached picture). It seems the water is coming out from the bypass and not under the thermostat. Any ideas what the problem may be...
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    Spaghetti Rbber Seal for 1965 Johnson 20 HP FD-18

    Can anyone tell me where to purchase in bulk the spaghetti rubber seal (.100" diameter) that is required between the gear case housing halves of my 1965 Johnson 20 HP FD-18? Thanks, Mike
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    Cooling Problem with 1965 20 HP Johnson FD-19D

    Restoring a 1965 20 HP Johnson FD-19D and have come across a weird cooling problem. Engine heats to above 200 degrees when idling - have changed impeller and thermostat. Place boat in the bayou and removed the thermostat and left the cover off. Started then outboard and a stream of water shot...
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    Tell Tale Addition to 1965 Johnson 20 HP FD-19D

    I want to add a Tell Tale water outlet to my 1965 Johnson 20 HP FD-19D. I have ordered the elbow (#321886), the bulkhead (#321885), and the hose (321887). My question is where do I drill the hole in the jacket - there is a pre-threaded outlet on one side. Can I use this threaded location by...
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    Parts List for 1957 7.5 HP Johnson Model AD-11

    Can anyone lead me to a parts list for a 1957 1957 7.5 HP Johnson Model AD-11 Serial# 1504953? Just inherited this beauty and would like to restore it. Thanks, Mike
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    Mercury 7.5 Thunderbolt boggs in forward gear.

    Jeff, I swapped the red coils and firing issue remains with the bottom cylinder -- swapped points, changed high speed coil (yellow/blue), cannot seem to move the trouble away from the bottom cylinder -- Do you think it could be a timing issue - or maybe the low speed coil?
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    High Speed Problems with 1972 Mercury 7.5 Thunderbolt Outboard

    Spark plugs test fine --- compression test 80 lbs on each side -- water pump has been changed. Gear Box pressure tested -- will not hold pressure - ugh, guess seals need changing. Attached a picture of my home made lower unit pressure tester. Ignition coils pulled and cleaned --- part number...
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    High Speed Problems with 1972 Mercury 7.5 Thunderbolt Outboard

    Serial Number on Motor is 3281871 ----- 1972 7.5 HP Mercury Thunderbolt. I will pull coils and clean and resistance test -- still looking for replacements that are compatible.
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    High Speed Problems with 1972 Mercury 7.5 Thunderbolt Outboard

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    High Speed Problems with 1972 Mercury 7.5 Thunderbolt Outboard

    Can anyone give me any hints on troubleshooting my 1972 Mercury 7.5 HP Outboard. This little gem runs fine at low speed but struggles with high speed. I have changed spark plugs, coil wires, fuel pump, and cleaned carb. I suspect ignition coil problems since I believe there is a low speed and...
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    Help Finding Parts for my 1972 7.5 Mercury Thunderbolt Serial #3281871

    Here are pictures of my project motor -- I need the spark plug wires to the coils. I look online here and motor serial numbers for the 7.5 HP Mercury start at 5000000 -- my motor serial number is 3281871. When I input his serial number the message returns saying serial number not found. Can...
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    Help Finding Parts for my 1972 7.5 Mercury Thunderbolt Serial #3281871

    So, I just acquired a project motor -- 7.5 HP Mercury Thunderbolt Serial #3281871 and cannot seem to find parts online. All suppliers either start with 1973 or serial numbers higher than 5200000 -------- am I stuck with a motor I cannot get parts for? Does anyone know if the 1973 7.5 HP...
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