Topic: 50 merc 84 yr. Tillotson carb problem – Antique Outboard Motor Club,Inc

This topic has 5 replies, 3 voices, and was last updated 8 years, 6 months ago by cannuck.

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June 26, 2017 at 2:54 pm #7444
cannuck
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I’m loosing fuel pressure Carb type w/ blue fuel pump on side of carb. Just got motor runs like out fuel, bulb goes soft .Opened up carb. in a diagram it shows 3 gaskets. like pcs. item 24-26 does not say what they are I searched everywhere , behind diaphragm and body towards carb ? Mine are not there, what are they ,a Walboro carb looks like pcs . I have . anyone know ? serial 6278587
June 27, 2017 at 9:50 am #60447
billw
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US Member
They are gaskets and a piece that has flat, flexible rubber check valves. Yeah, you would definitely need them!! See #42 in the parts list on this page:

http://www.marineengine.com/newparts/pa … R1399-5137

Long live American manufacturing!
June 27, 2017 at 6:38 pm #60476
jeff-register
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US Member
Time to soak the carbs, & add a new needle seat as well, Check the connector for leaks too. The bulb should be soft while running too.
June 27, 2017 at 6:41 pm #60477
jeff-register
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US Member
Oh I too have found more than one fuel pump missing gaskets 4 the check valves. As with carbs too!
June 27, 2017 at 6:43 pm #60478
jeff-register
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US Member
Crank case leakage? Where is it wet? Crank seals bad, bottom one.
June 28, 2017 at 9:55 pm #60557
cannuck
Participant
That is the same as a Wallbro carb your saying to look at .See the breakdown for tillotson carb they have 2-3 more gaskets beyond fuel diaphragm to carb but the numbers 24-26 are not identified that’s the problem
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