Couple Of Rb20 Questions

[pipster11]

hey guys

got my 32 about 2 months ago and been ironing out a few problems it had

since fixing other things i have noticed that i have:

an injector that has a small leak and is dripping small amounts of fuel onto the inlet runner (cant see it dripping but can see a small pool of fuel sitting under the injector and smell the fuel

and

after you go for a spirited drive its not a fan of a steady idle, yes i have cleaned the aac a couple of times now and i thought it was gone (had timing problems including a broken cas bracket which is now fixed). Its a strange problem as the car runs fine all the time now but after i went for a burn yesterday and i pulled over to change the timing and let it idle which started becoming more and more erratic (low revs then high revs then lower then higher) and it eventualy went so low that it stalled itself. i adjusted the timing and drove home. when i got back i let it cool for a while and it started doing the same thing. 1 thing to note that i was rumaging around and found the cold start valve was completely blocked off and unblocked it (cold start has been working perfectly ever since)

1 last thing

its got an rb25 turbo on it which usually runs ~10psi but i noticed that in 3rd at ~6k rpm it was getting on for 13psi, could the thin walled silicone hose that goes from the hot pipe to the actuator cause this (expanding under pressure maybe)?

many thanks if anyone can shed some light on anything as its starting to get a bit annoying

Tom

[Psymon]

Your leaky injector is most likely the injector o ring. I had this problem for ages, changing the o rings fixed it.

[pipster11]

where did you get the o rings from?

and how did you know the size?

i cant really take them out cos i will have to drive the car to get them