Poorly Installed Injectors.
05-08-2008, 05:59 PM
#17
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Honestly the pintle caps and o-rings wouldn't bother me too much. Yes you should get them sorted out properly, but it's not a huge deal. I would be more concerned as to why the pins on the diagnostic connector have been moved around. That would be a little disconcerting because it suggests that the last person to work on the car had the right amount of knowledge to be a danger. I can't imagine any good reason to move the diagnostic pins around.
05-08-2008, 06:01 PM
#18
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05-08-2008, 11:12 PM
#20
Team Owner
its a good idea to lube the O rings i like to use the Dow Corning 111 non setting silicone sealant , it makes for easy removal and keeps the rubber soft
05-09-2008, 03:06 AM
#21
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Bill,
I don't know about the 4-hole injectors, but the "disk injectors" we installed in my car didn't have
"protective caps". So I don't think the caps are necessary to keep the o-rings on.
I don't know about the 4-hole injectors, but the "disk injectors" we installed in my car didn't have
"protective caps". So I don't think the caps are necessary to keep the o-rings on.
05-09-2008, 03:16 AM
#22
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They are with the Bosche injectors. The lower o-ring and spacer just fall off the injector if the pintle cap is removed.
05-09-2008, 09:41 AM
#23
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Brian,
The O ring dimensions emulate those in the standard Bosch kit.
You measured your O rings at circa 16.5mm - were these new O rings or old?
Would the extra 20 thou make that much of a difference?
Roger
The O ring dimensions emulate those in the standard Bosch kit.
You measured your O rings at circa 16.5mm - were these new O rings or old?
Would the extra 20 thou make that much of a difference?
Roger
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
05-09-2008, 04:47 PM
#25
Race Director
The ones I measured were OLD...well not that old, but they were 4 years & 14k miles old...... But I thought the O rings swell with age.....or is it the other way around and they shrink?
05-09-2008, 07:30 PM
#26
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Brian,
I was just interested and you may be right that they swell. I do not know if Viton swells or not. I do know that it is very compatible with gas. Maybe someone else can comment?
Roger
I was just interested and you may be right that they swell. I do not know if Viton swells or not. I do know that it is very compatible with gas. Maybe someone else can comment?
Roger
05-10-2008, 04:49 AM
#27
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We gotter fixed today. New idle stabilizer, fixed vacuum leaks, fixed bad injector plugs. SMOOTH IDLE. The owner says it has never run this good. We had a few mishaps along the way and crunched a few injested pintle caps, but it runs very well now.
