Do RC 550cc injectors require new grommets?

[GrimJack]

Do RC 550cc injectors require new grommets? As in, the ones that sit in the head? The ones that are in there appear to be a little loose on the RC injectors, they were tighter on the stock 440s. I thought these were plug and play - except for the clips, of course.

I was going to dig about the HPF website to see if they stock something for this, but they appear to be offline at the moment.

 

[adampecush]

Do you mean new as in different from stock?
To be safe I would throw in new grommets - I learned my lesson re-using the o-rings, as soon after installing my 550s the #6 injector sprung a pretty severe leak (and I was driving 185km home from where i was working on the car)

 

[bensn8]

^^ I don't think he is talking about the o-rings that are used to seal the injector to the fuel rail. The grommets I got with my 550's were loose also, I just reused my old ones and had no leaks. When I finally did a complete overhaul on my motor, I changed them out with the set that came with the overhaul gasket set that fit better than the ones RC provided. Should'nt you be able to by some at Napa?

 

[drjonez]

anytime you replace injectors, you should probably replace the grommets + o-rings...

BTW- where ya been grimmy?

 

[dav_dman]

anytime you replace injectors, you should probably replace the grommets + o-rings...

BTW- where ya been grimmy?

where do you guys get them at?

 

[drjonez]

toyota.

 

[GrimJack]

BTW- where ya been grimmy?

Thanks Doc!

Last few months have been summer... I'm usually pretty inactive over the summer anyhow, I spend most of my free time driving, mountain bike riding, etc. Add in the fact that I switched jobs and we welcomed another baby boy into the family in May, and I've had less time than usual!

The Supra has been effectively off the road since May - although it was still insured and running until mid August, when I tore the engine out to install a new clutch, JE pistons, MAFT Pro, 550s, etc, etc. Since then I've been waiting on parts or on the injured list and just generally lazy.

 

[drjonez]

sounds like a great deal. wish i could spend more time riding...

congrats on the new addition! i'm a whopping 7 weeks in myself...

 

[chriso]

....back to the issue of the grommets...when I installed my RC 550's, I used brand new Toyota grommets and yes, I thought they felt a little looser than they did on the stock injectors. I used them anyway since I didn't have a source for anything specific from RC. I sprayed starting fluid down around each injector and it doesn't appear that I have any leaks.

 

[MKIIINA]

my lucas injectors (same as the rcs just rebadged) and we had the same issue. over 5000 miles of trouble free driving says i guess they are seated ok! i got my new gommets and o-rings from oriellys (and they had them in stock!)

 

[91T breezen']

Hey Dave;

Thanks for just answering my next question also!:bigthumb: I just bought RC' 550's from Selz202, and had heard about re-doing the grommets as well. The o-rings can be had from several different places, but from what everyone is/has said, you have to deal with Toyota for the grommets.:aigo:
Looking forwatd to seeing you at upcoming meets!:icon_bigg

 

[shaeff]

baby jonez!? contrats!

-shaeff