1982/83 70HP 3 cyl fuel pump WATER line I.D. size?

BWR1953

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Jan 23, 2009
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6,195
I've looked all over the webz and can't find the part anywhere. Marineengine.com and Crowleymarine.com don't show it either.

The fuel pump is water cooled and the new hose I've been trying to install just doesn't want to go on. It was checked side by side with the old hose and the I.D. of the old hose was larger.
 

Chris1956

Supreme Mariner
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Mar 25, 2004
Messages
27,911
Hoses should be pretty standard. Can you take the old one to an auto parts store and see if they can match it?
 

Texasmark

Supreme Mariner
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Dec 20, 2005
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14,676
My 115 has internal diameters of 5/16" but 3/8" supply line. I think the 3/8" supply line just cuts down on merchants having to stock numerous sized lines for different HP engines.
 

BWR1953

Admiral
Joined
Jan 23, 2009
Messages
6,195
Thanks guys. I bought some 5/16" I.D. hose yesterday afternoon and got it installed this morning using dielectric grease. It went right on without issue.

Since the engine is 32 years old, I don't really know if the stuff already on there was different. I'll know more once I get the engine fired up. Hopefully it won't leak. It's ready to go now. Finally! :LOL:
 
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