Home › Forum › Ask A Member › Carb was running over. Was sure it would be an easy fix.
- This topic has 8 replies, 7 voices, and was last updated 1 week, 5 days ago by The Boat House.
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September 25, 2024 at 9:51 am #291088
I have a really nice, original paint, Mercury Mark 7 that I haven’t run very much. Went to 3 Lakes in Wisconsin (nice lakes) for Memorial Day weekend and took it to run. Had a note on the motor that said, carb. tends to run over but a couple wraps on the float bowl will stop it. Well not this time. Always take a 3hp Lightwin as back up so we didn’t miss out on the nice weather we had. The Mark 7 has been sitting on the rack ever since. Its getting to be that time of the year, where the motors that we’ve run need their pre-winter service along with any necessary repairs. I was thinking an hour or 2 to make a new float. Ended up taking most of the day and I still haven’t removed the impeller and changed the gear oil. I found that the float wasn’t the problem. There was a lot of dirt around the needle and seat. Gave the carb. a good cleaning, and had it back on the motor. As I started to put the fuel line back on I thought, maybe I better take a look at the filter as that dirt shouldn’t have been there. And that was where the fun began. For some reason the filter was now bigger than the hole it went in. After several attempts to pull it out I snapped off the stud. To get the filter out I would shake it around in the tank till I could get it on my finger. Then I would twist the filter into the threads as far as I could, no more than 2 or 3 threads, and use a dental pick to pull out as much of it as I could. This took several hours. When I did get the busted stud out it was obvious where all the dirt came from.
September 25, 2024 at 12:56 pm #291091That’s a great job Tubs!
September 25, 2024 at 6:18 pm #291092Nice job – looks good as factory new!
Bob
1937 Champion D2C Deluxe Lite Twin
1954 Johnson CD-11
1957 Evinrude Fastwin 18
1958 Johnson QD-19
1958 Johnson FD-12
1959 Johnson QD-20“Every 20 minute job is only a broken bolt away from a 3-day project.”
"Every time you remove a broken or seized bolt an angel gets his wings."September 26, 2024 at 9:49 am #291109Nice work!
1956 Johnson 15 Hp, FD-10
1958 Johnson 5.5 Hp, CD-15September 27, 2024 at 11:43 pm #291163Well done Tubs ……a very neat job. You must be very satisfied with the result
September 29, 2024 at 11:09 am #291191Recently someone was asking about these filters as his was missing. My solution is probably too late to be of any value to him but someone else may find it useful in the future. Tubs
September 29, 2024 at 11:45 am #291193Tubs, amazing job……..as usual.
Bob DSeptember 30, 2024 at 11:55 am #291220What is the mesh size and source of your screen?
Thanks.
October 1, 2024 at 6:52 pm #291254.
I believe it is 200 mesh. I’m on my last adventure of the season but will be back Mon. Then I can tell you for sure, as well as the suppler. We normally go south but decided to go to a state where we have never been before so we have missed all that mess from Helene. What Luck. Tubs
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