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rb20-calais
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rb20-calais Rising Star

rb20-calais

Posted
Posted

I am getting a bit pissed off with a few teething problems I am having that I shouldnt be having.

I had a missfire the other day so I went to the place who did my car and gave them the 'WTF?' they played with injector plugs and it was fixed "oh yeh we had no clips to hold your plugs to your injectors you will have to get some" ... that didnt impress me because what if at full boost an injector plug gets loose? there goes my engine.... err WTF?

Now I was driving home last night and I got a missfire again, I pulled over and fiddled with the plugs and noticed under revs that a mist (looked like steam but i guess its fuel?) was coming from between the front injector and the block and there was some liquid there, it stunk of petrol.

When I first sent the car to the workshop I had put the plugs in (GTR injectors, RB20) but I didnt bed them in properly so they leaked and had to be redone, the workshop also told me while tuning an injector leaked and had to be redone again. NB. Redone = put back in with new o-ring.

I cant drive the car to the workshop as I am scared it will catch on fire.

My questions are:

1) The mist that looks like steam coming out of the injector would be fuel or steam ?

2) Anyone know the part number of the orings or if they are the same as RB30 ones so i can get some tomorrow.

3) will i need to replace all the o-rings or just one injector.

3) hints on the best way to replace and install the new oring(s)

Any other advice is welcomed.

Thanks in advance,

Evan

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DoughBoy Veteran

DoughBoy

Posted
Posted

It's the o-ring. I had a split one (was crimped when putting in the injector) for about 2,000k's. Was dribbling fuel out the whole time, too lazy to change it.

With the top feed injectors you need to loosen the fuel rail (two bolts) and remove the offending injector to get to the o ring. You can do it yourself, although the workshop that's done all the work should replace it out of courtesy (hell they should have noticed it and fixed it when they had the car).

It's a bit of a pain the the ass with the standard intake manifold, as access is a bit restricted. There's nothing that hot on the intake side that would ignite the fuel, but having said that a spark from a loose earthing point could ignite it.

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