Installing Sard 550's O Rb25det

[bloodsword27]

heya installing the Sard 550's into my rb25det motor. purchased through justjap, theyre brand new. what seems to be the problem i that the new injectors are:

1- not as wide as the original ones, therefore slide in and out of the rail very easily

2- both top and bottom O-rings dont seem to be sealing up

3- the injector cap (the cap thing that holds the injectors in) dont fit back on if i sit the injector into the rail

am i doing something wrong? am i meant to change the O-rings or anything? is it possible the injectors given to me were wrong? bear in mind the RB25's are sidefeed injectors.

all help is much appreciated!

[BOZ22N]

You have to use std RB25DET injector o-rings from nissan. The sards do not come with the correct o-rings.

Good luck mate. If you are not sure make sure you get some one with a mechanical background to check you as side feeds can be very tricky.

[MBS206]

When I did my sards, I found my 870cc came with the right o-rings, and hence, fitted in VERY tightly.

As to the cap, I had to remove the little rubber bit in the cap end to make it fit on.

[bloodsword27]

well test fitted the standard O-ring that was on my stock injector and its very loose with about a 1-2mm gap between the injector and the O-ring. ..any alternatives to the Nissan ones? car goes in on friday morning for the tune! ugggg

[bloodsword27]

ok removed the rubber bits in the caps and fit looks ok. still need to seal off the upper region .....somehow......so new standard O-rings?

[STATUS]

ok removed the rubber bits in the caps and fit looks ok. still need to seal off the upper region .....somehow......so new standard O-rings?

No need those are just dampers for the std injectors.

[bloodsword27]

thanks for the confirmation URAS.

fark new O-rings are a rip from nissan...$5 each x 6....

injectors are in the rails now, fit is good, though not sure how tight to screw the allen key bolts down. are the collars meant to touch the rail? currently mine are 2-3mm's away from touching but theyre pretty damn tight already, sounds right?

[Luke_GTS-T]

thanks for the confirmation URAS.

fark new O-rings are a rip from nissan...$5 each x 6....

injectors are in the rails now, fit is good, though not sure how tight to screw the allen key bolts down. are the collars meant to touch the rail? currently mine are 2-3mm's away from touching but theyre pretty damn tight already, sounds right?

Yer my collars didnt clip on properly, touching the rail.. not sure if this is bad or not though.

Anyone have any info on this?

[Mark_McQ]

Sard sell an optional part which is a seperate collar that's required for some cars when using their injectors. You may need a set of those.

[Luke_GTS-T]

I already have the sard collars required for the injectors. Is that what your talking about? because they dont fit on properly...

[Dose Pipe Sutututu]

Sard sell an optional part which is a seperate collar that's required for some cars when using their injectors. You may need a set of those.

http://www.nengun.com/sard/injector-collar