Quote:
Originally Posted by TMAllison
To my knowledge all fuel line o-rings are the same size.
This was posted by ncof300D:
Snap-on Hose seals
O-ring
13mm OD
8mm ID
2.5mm thick
Shut-off Valve seal
O-ring
17mm OD
12mm ID
2.5mm thick
Is the top of the IP where the delivery valves attach free of fuel? Those valves have o-rings too.
I've had difficulty getting the pre-filter o-ring to seal after repalcing it. You might check it again. What about the o-rings on the bolt that the main filter spins onto?
I suspect that as time goes by, your bubbles will begin to cause harder starts and eventually a leak will develop somewhere. You could try parking nose downhill to see if you could get fuel to leak so you could track it.
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I already replaced the delivery valve o-rings at 100,000 miles as they were leaking. They are still bone dry. I already double checked pre-filter o-ring and the new o-ring at the bolt on the main filter.
I have no visible evidence of a fuel leak at this time. I was thinking that perhaps I could wait for a fuel leak to help identify the location of the air leak (but I'm concerned I'll damage something running w/air in the fuel). You're idea of parking nose down is a good one; I'll also make sure the tank is full of fuel to add extra pressure (will that help add pressure?)
Will running the car with air in the lines cause pump cavitation / damage or other engine damage? Again, car is currently running perfect.