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Registered
Join Date: Jul 2003
Location: Richmond, Virginia
Posts: 112
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Fitment of Fuel Injectors
I am currently in the final stages of a rebuild of a 3.0 SC. I removed my fuel injectors during the tear down. Sent them out to be tested and cleaned. They came back OK. I also purchased new inserts and o-rings to replace the old ones. Now that I've reinserted the fuel injectors, there seems to be an excessive amount of lateral play in the injectors as they fit in the new inserts. Also, they come out with relatively little pulling pressure. I did use white lithium grease to slide them into place, although it doesn't feel like that is an issue with respect to their fit. It seems that sixty+ psi of pressure will blow them out of their sleeves. Maybe I'm just paranoid, or maybe the composition of the o-ring will cause it to swell slightly upon contact with fuel.
Can anyone shed any light on this issue? Thanks, Duane
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'79 911SC Targa -- "BLUVUDU" '83 930 Coupe -- "TURBAUX" |
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09-07-2004, 09:14 AM
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MAGA
Join Date: May 2004
Posts: 10,769
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They will never see any pressure in fact, the intake they are spraying into is usually at lower than atmospheric pressure. I do not know about the grease idea, I have only used ATF to lube the new o-rings at installation.
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German autos: '79 911 SC, '87 951, '03 330i, '08 Cayenne, '13 Cayenne 0% Liberal Men do not quit playing because they get old.... They get old because they quit playing. |
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09-09-2004, 08:09 AM
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Registered
Join Date: Jan 2004
Location: Richmond,Va
Posts: 916
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I read somewhere that you could use the actual fuel as a lube that would dry quickly. I used spit on a couple of mine that were tougher than the others. Are the sleeves loose? They can get loose and have to be "staked" back in place.... Mine felt more loose but I think it was the softer seals compared to the hardened seals.....
Harold
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Harold 
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09-09-2004, 06:47 PM
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