Can somebody tell me what's the difference between these grommets (e.g. cushion rings)? The description calls one an upper and one a lower grommet. I'm only familiar with one - the one where the injector mounts to the rail. Here's the link to the description...

GROMMETS

Thanks,
-john

 

Here is a pic of a beck arnley injector seal kit. It has 2 cushions.

(from NAPA web site)

 

Thanks Yoda. I can't find that seal set on Beck-Arnley. Can you tell me how you located it? I see a "Injectors and Seals" but none of them are just seals by themselves.
Thanks,
-john

 

Its got two on the top of the injector, the small o-ring that actually seals the high pressure fuel and then the upper grommet (on the right in the pic above). Then there is the lower grommet (the lowest one in the pic above) the seals the injector to the intake manifold to prevent a vaccume leak. Not real sure about the largest o-ring in the pic above (on the left)

http://www.fiveomotorsport.com/Parts...s/TOY45011.jpg

 

the BA # on the napa web site is 1580090

Don't know if the link will work, but here goes:
http://www.napaonline.com/masterpage...ector+Seal+Kit

The NAPA kit has even more seals (the CRB # 212080)

http://www.napaonline.com/masterpage...ector+Seal+Kit

 

Here's what I used on my last injector project (Toyota P/N's, listed from top to bottom, I think):
O-Rings (top): 90301-07001
Grommets (top): 90480-13005
Injector Insulator (bottom, on top of spacer?): 23291-41010
Spacers (bottom, on intake manifold): 90561-10002
Spacer O-Rings (bottom, on spacer): 90301-23004

 

Don't freak out when you pull the old lower insulator off and it looks nothing like what you have to replace it with. That lower insulator bakes and changes shape BIG time once you have 150k on the motor. The guy at the dealer was laughing when I handed him an old one and said "I just cant find the right ones" and he explained that to me.

 

The smallest o-rings goes at the top of the injector. The largest around the outside of the bakelite insulator that the injector sits in. The right grommet slips over the top of the injector & pushes down to where it flares out. The lower left grommet goes on the very botton of the injector. Did they look like this when you pulled them out?



IMHO, send them away & have the completely redone for only @ $13 each; I spent more than that on seals/o-rings alone!

 

Has anyone figured this out. I bought that same kit but the grommet that comes in the kit to go on the bottom of the injector looks nothing like the one that came off the injector. (talking about the injector to intake seal not the fuel rail) that one in the kit doesn't even fit in the hole on my intake. Are the proper grommets still available from the stealership? the one in the kit is basically a big fat O-ring, the one that came out of the truck was a lipped grommet nearly like the upper but with only one lip.

 

disregard, I'm an idiot. they are shaped different but do fit.

 

I know this is super old. but does anyone know how to get that bottom grommet/cushion ring out. its wont budge whatsoever.

 

It just slides on over the pintle cover; there's not even a ridge.

I'd suggest warming it with a hair dryer (or hot air gun -- just be careful with that). That will make the rubber a little more flexible.

Keep in mind that you will likely pull off or tear the pintle cover; they are much more fragile than the lower cushion.

 

im replacing my injectors with the 4 hole. they already have a new cushion ring on them. im talking about my old cushion ring is stuck inside the grommet or injector cap or spacer (whatever people call it). its not stuck on the injector itself

 

The outer edge of the cushion is smooth, too. So you've just got something really sticky in there.

I'd still try a hair dryer. If you use a hot air gun, wrap your hand around the cup; if it's too hot for your hand, it's close to too hot for the plastic.

 

thanks man ill try that when I get out of work later.

 

Your talking about the isolators. Just give them a good soaking with kroil or penetrant of your choice. I like kroil. Give them a few minutes and twist them back and forth then work them out. Obviously from my pic they do break but they can be bought from ebay. ​​​​​​​