O-ring...or no 0-ring

I agree with bison, the green o rings are usually a fluoroelastomer material and not made for contact with fuel. I bought a bunch (i think they came 5 in a pack) of oem brown ones from gbody parts a few years ago when you could place an order from them and actually receive the parts.
For lube, if you go on amazon theres companies that sell synthetic o ring and seal grease for motorcycles (race tech and pro circuit are the comapnies ive used) they use it when doing fork seal replacements and it comes in a handy little jar. I put that sh!t on everything!
 
For future reference Orielys has the fuel rail orings in a kit for 4 bucks

BWD - Fuel Injector Seal Kit
Line: BWD | Part # 27478
 
RmvBfrFlght said:
Here is some info I've gleaned from this site over the years:

NAPA #730-4912 you get 2 of each one and they are correct.
NAPA #2-18416 for a package of one of each size.

STANDARD MOTOR PRODUCTS SK27 Fuel Rail O-Ring Kit
STANDARD MOTOR PRODUCTS SK26 Fuel Rail O-Ring Kit

borg warner or neihoff search part # 27478 , its a kit of both o-rings for the fuel rail

standard motors brand in a 10 pack.. sk27 feed , sk26 return

Fel Pro ES 70599

For the FPR to rail connection it is a standard GM injector O-ring.

RemoveBeforeFlight
Click to expand...
Just picked up the NAPA #730-4912, perect! Old thread but still providing help! Thanks!
 
Always spray a little Silicone spray on the O-rings or anything else that doesn't slide on, like any type of snap on connectors, or where you put on your breather cover onto your MAF. That will make your life soooooo much easier . Here is an example of what I use. I go thru cans of this stuff. You'll push on that fuel ejector connection hard and not hear a click and later on it falls off, with this stuff...That wont happen
Joes GN 6.jpg
 
T-type Jones said:
Always spray a little Silicone spray on the O-rings or anything else that doesn't slide on, like any type of snap on connectors, or where you put on your breather cover onto your MAF. That will make your life soooooo much easier . Here is an example of what I use. I go thru cans of this stuff. You'll push on that fuel ejector connection hard and not hear a click and later on it falls off, with this stuff...That wont happen
View attachment 372291
Click to expand...
That shit is banned in my shop.
U get that on any part you may want to paint.... FORGET IT.
 
2QUIK6 said:
Just picked up the NAPA #730-4912, perect! Old thread but still providing help! Thanks!
Click to expand...
You might want to recheck again.
I already purchased from NAPA and from RockAuto and these are the parts # you might want to check out
I had this https://www.amazon.com/Dow-Corning-Vacuum-Lubricant-5-3oz/dp/B001UHMNW0
and used it for so many application.


 
Chuck Leeper said:
That shit is banned in my shop.
U get that on any part you may want to paint.... FORGET IT.
Click to expand...
Many years ago, I worked for a well known manufacturing company and silicone spray was banned in the shop. The building occupied about 4 city blocks and the silicone screwed up the paint quality on the opposite corner of the shop.
 
They are tiny o-rings and delicate too. One is red, the other is black. SK18 and SK17 I am pretty sure. I got mine at O'Reilly. I think I used a wet fingertip of tire shine on injector o-rings and that worked pretty good too.
 
GNONYX said:
You might want to recheck again.
I already purchased from NAPA and from RockAuto and these are the parts # you might want to check out
I had this https://www.amazon.com/Dow-Corning-Vacuum-Lubricant-5-3oz/dp/B001UHMNW0
and used it for so many application.


Click to expand...
It's a 3/8" o-ring, and it was brown also just as the originals. Same as what was on there, no issues, installed today!
 
GNONYX said:
I don't know what type of rubber is being used to make the O-rings, but natural rubber o rings will crack and break if use a petroleum based lube
Click to expand...
Well they are o-rings for fuel so that should not happen on these. Use vaseline always with fuel related rubber.
 
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