1990 7.3

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05-17-2011, 11:03 AM

Fireman_dave

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1990 7.3

I have a 1990 7.3 and the fuel line between the filter and the ip is leaking, anyone got a clue where i can get one or seals for it, i have search the net and the guys at napa look at me like i am a moron

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05-17-2011, 01:23 PM

eatont9999

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I think they are compression fittings, so try tightening them down a little more.

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05-17-2011, 03:04 PM

polarismuddman

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No, they actually have little o-rings on them called olives. PM type4 because he can get them for a good price.

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05-18-2011, 04:32 AM

PLC7.3

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Contact any diesel repair shop.........Navistar dealer should have them.

You need three seals:
1 EA..... 3/8 ID for the lift pump to filter header line.

2 EA..... 5/16 ID for the filter header to IP line.

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