Home › Forum › Ask A Member › Pivot pin 57 Johnson 35 HP
- This topic has 17 replies, 8 voices, and was last updated 4 years, 8 months ago by dave-bernard.
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August 20, 2019 at 7:52 pm #181659
I am in the middle of getting this motor wor
king. I have got the motor running and now am rebuilding the gearcase. Before I opened it up I noticed that the pivot pin was not completely seated in the skeg. Now that it is apart I have tried to insert the pin and screw it all the way in. No luck it will advance about 1/16th of and inch and no further. I have checked the threads on the pivot pin an run a tap in the skeg. All seems OK there .There is no obvious trauma to either the skeg or the pin {it does not appear to be bent}. A drill bit will travel the depth of the receiving hole in the skeg I am wondering if I should grind a small amount off the pin thinking that it would then seat properly. Any thoughts? Thanks for any input Brian
August 20, 2019 at 9:26 pm #181678I find it highly unlikely the pin is too long. Gotta be some other reason it won’t go all the way in. Of course you used the correct tap into the skeg, right?
August 20, 2019 at 9:42 pm #181680I don’t think the pin is too long as it will not go in more than about 1/16th of and inch when marked with a sharpie. The drill bit goes in the entire depth of the hole.The die I used to tap it went in very easily I am at home now away from the unit but I think it was 1/4 by 28 tpi.
August 21, 2019 at 1:12 am #181686I’m having trouble understanding: With the gearcase apart, and nothing inside:
1. the pivot ONLY goes in 1/16th
or
2. goes in almost all the way??If #2, is the seal/o-ring in good shape?
http://www.omc-boats.org
http://www.aerocraft-boats.orgAugust 21, 2019 at 8:21 am #181693Could the motor have come with the wrong pin?
Prepare to be boarded!
August 21, 2019 at 8:28 am #181694So when I insert the pin and start to screw it in it will only go in at urn and a bit. The pin engages the receiving hole but than stops and will not advance more. I am afraid to attempt to turn the screw more in case I strip the threads. So only about 1/16th of an inch is in the receiver. Could a PO used the wrong pivot screw or could there be a misalignment of the two
August 21, 2019 at 8:30 am #181695Sorry Buccaneer I just saw your post. Are there different sizes of pins?
August 21, 2019 at 9:12 am #181696There are variations of the same pin, all interchangeable as far as I know. The differences are such as gasket vs o-ring—stuff like that.
August 21, 2019 at 10:28 am #181700Try chasing the threads on the pin itself. 1/4 X 28 I believe. Is the pin straight?
August 21, 2019 at 11:21 am #181702SThanks for all the replies . I did run a tap over the threads on the pivot and they are OK. I also threaded a 1/4 I nut with 28tpi and it goes on easily . I don’t think the pin is bent but will check again. I do have a part motor in the rafters that I think is either a 9.9 or 18 hp from about 1960. Would that pin be the same size?
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