Leaking Injectors
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Joined: Jul 2007
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Leaking Injectors
My 89' 7.3L has three injectors that are leaking and I was wondering If there was anything I could do to the injector that would maybe seal it so I maybe don't have to buy new injectors? If I do go with new injectors, could I buy some 90lb injectors for better performance if I turn my pump up? They are leaking below the compression fitting out of the top where the nut us that you use to tighten them into the engine.
Lead Driver
Joined: Nov 2003
Posts: 6,900
Likes: 3
From: Campbell River, B.C.
There is a complete return line kit avalable that replaces all the seals and hoses that are prone to causing the notorius cold start/stall condition.
What O rings did you use?
The injectors in these trucks are usually set to 1400(ish) psi, poping up the pressures has little gain in performance, unless you have a turbo.
Also, be carefull if you turn up the pump, EGTs have to be monitered to prevent the pistons from overheating (lots of black smoke = high EGTs).
What O rings did you use?
The injectors in these trucks are usually set to 1400(ish) psi, poping up the pressures has little gain in performance, unless you have a turbo.
Also, be carefull if you turn up the pump, EGTs have to be monitered to prevent the pistons from overheating (lots of black smoke = high EGTs).
Post Fiend
Joined: Nov 2004
Posts: 5,638
Likes: 1
From: Manitoba
Don't bother with ONLY oring changes on old warped plastic caps... UNLESS your in dire straights........ Always do the whole kit .... caps, orings and return lines... so get the kit from MWIF or your local diesel shop, parts store etc.
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79sparky
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
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Jan 14, 2013 04:39 PM
