small discrepancies!

Discuss the RB20, RB25 and RB26 series engines.
User avatar
USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
Contact:

Post

So i heard this wierd noise (VIBRATION) coming from the engine bay. So i took a look at it today and heard it coming from the cam shaft intake side. Number 1 cylinder. So, i ended up retorquing all the caps down and it went away. So i decided to check the sparkplugs and i found a bkr5e-11 in the #1 spot. So then i checked the rest and they are all bkr6e-11. I figure that is what was causing my lil backfire problem.

I'll post up in a few hours and let u guys know if everything is kosher. I also have notice that my oil pressure was directly affected by that vibration of the cam shaft.

wierd symptoms.


Joe
Posts: 6511
Joined: Sun Feb 09, 2003 8:29 pm
Location: Phoenix, AZ

Post

with NGK the lower the number the hotter the plug, so that could cause a misfire problem.

but that makes me nervous your cam caps were loose....

User avatar
USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
Contact:

Post

not sure if they were positively loose. I loosened em myself and then retorqued it. The vibration noise is still there but now it feels like it has moved. Like a valve, piston, rod. I'm having my mechanic comeover to check it out.

User avatar
USMCgetsome
Posts: 2030
Joined: Wed Apr 14, 2004 7:38 pm
Car: OWN S13.5 RB25DET/2003 G35
Contact:

Post

now i have a high squealing noise. I'm gonna redo the timing belt and check to see if the tensioner and idler pulleys are operational. Something isn't right. Maybe even a hard knockin on just that 1 cylinder.


Return to “RB20DET / RB25DET / RB26DETT Forum”