Injectors Tapping Loudly

[PHATR32]

hey fellas,

the injectors on my 89 gtr are tapping real loud, are they simply worn out or is it something else?

would a proper service quieten them down, or should i buy new ones?

steve

[sammus]

bump. my gtst's are quite loud too.

[PHATR32]

i know for sure its the injectors cause when i rev it up and let go off the accelerator quickly, the tapping stops for a sec. I assume the ecu cuts the fuel etc.

steve

[GTR 94]

are they standard injectors? and did they just start getting louder? usually the louder they are the better.

are you positive its your injectors?

[slimjim]

Yeah I thought the tapping in my GTR were the injectors, but turns out its the cams or something.

What you can do to be sure is get a screwdriver and press it against an injector and put your ear at the other end. If the tapping coming through the screwdriver is in time with the tapping you can hear standing by the car, its the injectors. Otherwise, hold the screwdriver on all the bits and pieces until you find the tapping that matches.

If that makes sense...

[PHATR32]

its defnietly the injectors, i allready done that screw driver thing the first moment i started the engine.

The car has been sitting there for about a year.

I just needed to know if it was a bad for the injectors?, are they worn out?, does the tapping mean they arnt working right? etc etc

anyone know for sure?

Steve

[BHDave]

I've found that the bigger single pintle injectors are a bit louder, but i would call it clicking rather than tapping (yes i'm a pedantic bastard).

my 550 rx injectors (both s5 in the rb20 and s6 in the 25) are considerably louder than the stockers.

[LBR33]

iv been told the clicking sound means they are clean

[Topaz]

The tapets are at the top of the engine and tapping tapets means theres no or not enough oil circulating around. Its not a major problem from what Ive heard

[Bl4cK32]

I've found that the bigger single pintle injectors are a bit louder, but i would call it clicking rather than tapping (yes i'm a pedantic bastard).

my 550 rx injectors (both s5 in the rb20 and s6 in the 25) are considerably louder than the stockers.

<{POST_SNAPBACK}>

After i had my engine rebuilt the only noise i could hear in the engine bay was my 550cc rx7 injectors tapping away as BHDave said.

Its nothing to worry about

[PHATR32]

yeah, its kinda hell loud and doesnt sound too good.

My mate n1 rb26 is hell quiet, but it is a few years younger and has 1/4 of the ks on it.

its more annoying than anything else.

steve