Needle valve failure
#1
Needle valve failure
An interesting discovery while I was checking out all the systems after my upper engine work.
After priming the fuel system with the key on and checking for leaks, I found none but today I unscrewed the fuel rail cap for the schraeder connection and fuel leaked out.
The needle valve was not holding pressure.
I tried screwing it in a little tighter but it didn't matter.
So I removed it and replaced it with a new one.
The seal on the old one had deteriorated and upon inspection crumbled in my hands.
It'* tight now.
After priming the fuel system with the key on and checking for leaks, I found none but today I unscrewed the fuel rail cap for the schraeder connection and fuel leaked out.
The needle valve was not holding pressure.
I tried screwing it in a little tighter but it didn't matter.
So I removed it and replaced it with a new one.
The seal on the old one had deteriorated and upon inspection crumbled in my hands.
It'* tight now.
#2
Senior Member
True Car Nut
Joined: May 2003
Posts: 8,135
Likes: 1
From: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
Hmm, Bizzare, but I guess, it warrants a quick check when my car is back up in running status.
Probably not a bad idea for others to quickly take a peak at! Could save you a nasty fire!
And to think, your car has..48000 kms on it?
Probably not a bad idea for others to quickly take a peak at! Could save you a nasty fire!
And to think, your car has..48000 kms on it?
#5
Senior Member
True Car Nut
Joined: May 2003
Posts: 8,135
Likes: 1
From: Lethbridge, Alberta, _______Canada._______ West Coast Bonneville Fest ___05,06,07 Survivor___
In that case, I think O'Niel should inspect his...
The sitting probably does it...you normally start it though in the winter just to warm it up..or is it normally all taken apart like mine lol
The sitting probably does it...you normally start it though in the winter just to warm it up..or is it normally all taken apart like mine lol
#6
Well, only the last three years have I not started it at least once a month.
I have not started it now since early November and it probably won't start for another week.
It is a standard needle insert common to all including air valves for your tires. Same insert.
The seat is a hard plastic material but it is very tiny and my eyes have a hard time picking up the details but using a magifying glass it looks like a cast in place seal. There are two of them. One that seals the check valve and one that seals against the threads.
I have not started it now since early November and it probably won't start for another week.
It is a standard needle insert common to all including air valves for your tires. Same insert.
The seat is a hard plastic material but it is very tiny and my eyes have a hard time picking up the details but using a magifying glass it looks like a cast in place seal. There are two of them. One that seals the check valve and one that seals against the threads.
#7
Originally Posted by SSEimatt93
In that case, I think O'Niel should inspect his...
The sitting probably does it...you normally start it though in the winter just to warm it up..or is it normally all taken apart like mine lol
The sitting probably does it...you normally start it though in the winter just to warm it up..or is it normally all taken apart like mine lol
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