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Old 04 June 2015, 05:57   #1
Country: USA
Town: Mukwonago
Boat name: Tracker
Make: Bass Tracker
Length: 5m +
Engine: Outboard
Join Date: May 2015
Posts: 9
1984 Mercury 3.5hp lower unit oil seal removal

Dear Forum, can someone give me direction to remove the cover nut for the propeller shaft on my lower unit? My serial number is 6298133 if someone wants to take a look the parts diagram to see what I am talking about. It has 4 slots around the edge where to put a cover nut tool, but finding this tool seems to be impossible. Is there a chance I can use a flat ended punch to tap on the indents on this ring to remove it? I need to replace the oil seal on the propeller shaft and thus have to remove the prop shaft and bearing carrier to get to it. Please advise. Maybe somebody has a homemade tool they made or Im just missing something here? Thanks so much

Schnidly is offline   Reply With Quote
Old 04 June 2015, 06:25   #2
Country: UK - England
Town: Retford
Boat name: Spy-sea-one
Make: Excel 435
Length: 4m +
Engine: Suzuki Outboard/25/4
Join Date: Oct 2011
Posts: 5,720
hi have a look at over in the US tools for outboards

jeffstevens763@g is offline   Reply With Quote
Old 04 June 2015, 14:32   #3
Country: UK - England
Town: Leicester
Length: 5m +
Engine: 135hp Mercury
Join Date: Sep 2013
Posts: 901
Make one out of a length of appropriate diameter tube - I've done this for various nuts of this type.
paintman is offline   Reply With Quote

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