Injector o-ring bosses pushed out

[dyl33]

Hello, bad news ?

I installed injectors (1000cc top feed) 2-3 weeks ago, All seemed good.

Untill today I did a boost leak test and the injector oring bosses have pushed out....wtf

Before I go and pull it all apart, what do you guys think I've done wrong for this to happen.

Thanks ?

 

 

Edited September 27, 2020 by dyl33

[Ben C34]

It looks like the fact it could move up the rail is too high.

Need to reduce the length of the spacers, assuming there are spacers.

How much pressure did you apply for the leak test?

[dyl33]

Hmmm. It's sold as a rb25det 100% bolt-in kit by taarks.

Didnt use much pressure, reg was 15psi-25psi. But it never really built up pressure, just started to hear pssshhhh.

 

[dyl33]

@Ben C34 after further inspection i believe thiere is a problem. See pic.

There's a decent gap at the top which would allow it to move up, i think this is the problem. Or am i missing a spacer or somthing?

The injector kit only works with 3/4 height top feed.

I was sold the kit by Kudos motorsport with ev14 1/2 height injectors with height adaptors (short, 14mm) 

So im not sure if I've been given the wrong injectors or is there an issue the the injector o-ring bosses or somthing else.

 

 

 

[dyl33]

Pulled it apart there's this much up and down movement. Push up.

Pushed down.

Can i assume that's not suppose to be like that and I've been sold the wrong items.

Pic of spacer. Kit is made for rb25det under standard manifold fitment.

[Ben C34]

Definitely looks like this spacers are too long

[dyl33]

Well bugger, I'll have to take them back them. Strange as its a bolt on rb25det kit.

Thanks again.

[GTSBoy]

Just remove several mm of spacer.

[dyl33]

Thanks gtsboy worse case I'll do that, but dont really want to have to do that because i payed for a 100% bolt on kit not one thats needs spacers machined down. 

 

[robbo_rb180]

Nothing is bolt on, I've used many fuel rail kits and have to shave spacers down on them all. It's easy to do with a file. 

[dyl33]

Thanks robbo, yeah maybe I'll have to if there's no other way. but its strange there's a instruction manual to install this fuel rail kit. States 100% bolt on and mentions nothing about shaving spacers down. ?‍♂️?‍♂️

I'll find out more tomorrow hopefully.

Edited September 27, 2020 by dyl33

[Ben C34]

If you are in Adelaide  I have a lathe, 5 minute job.

[dyl33]

Thanks for the offer, unfortunately im on the gold coast. But luckily the company that makes the kit is 30mins away so I'll see what they say.

[hardsteppa]

I have the taarks kit and it all bolts in nicely - my spacers don't look like that though and i use the injectors that came with the kit, bosch 960cc

8 hours ago, dyl33 said:

@Ben C34 after further inspection i believe thiere is a problem. See pic.

There's a decent gap at the top which would allow it to move up, i think this is the problem. Or am i missing a spacer or somthing?

The injector kit only works with 3/4 height top feed.

I was sold the kit by Kudos motorsport with ev14 1/2 height injectors with height adaptors (short, 14mm) 

So im not sure if I've been given the wrong injectors or is there an issue the the injector o-ring bosses or somthing else.

 

 

 

 

[dyl33]

23 minutes ago, hardsteppa said:

I have the taarks kit and it all bolts in nicely - my spacers don't look like that though and i use the injectors that came with the kit, bosch 960cc

 

Thanks @hardsteppa yeah I reckon Kudos has made a mistake. It should work 100%. Are you able to get a pic of you spacers/rail?

Edited September 27, 2020 by dyl33

[hardsteppa]

sure, circled in red>>

[hardsteppa]

also i remember during the install; the bosses pushed in but then some popped back again again like yours is in your pic. Had to push them back in slowly (taarks note this in their instructions) for it to slide in and stay in; not any further issues other than that though. 

[dyl33]

All good got it sorted, just had the wrong height adaptor on it. Kudos being the great company they are sorted it out in 2 secs and gave me all new gaskets for having to pull it all apart.