injector ticking noise inside car
#1
injector ticking noise inside car
Hello,
I have an 1,6 NA engine. Installed the begi S3 turbokit with walbro fuel pump,OEM fuelrail and RX8 450cc denso injectors on a MS2
After installing this, I heard a annoying ticking. The noise is coming thru the floor on the passengers side. It drives me nuts...
I want to get rid of the noise inside the car
All injectors are working simultaneous and are producing the normal operating tick.
BUT: this tick is amplified by the fuel rail and follows the fuel lines. I can even hear the tick at the fuel filter which is also new.
What is the solution for this problem? other rail, fuel pressure damper, fuel pressure regulator?
thanks
I have an 1,6 NA engine. Installed the begi S3 turbokit with walbro fuel pump,OEM fuelrail and RX8 450cc denso injectors on a MS2
After installing this, I heard a annoying ticking. The noise is coming thru the floor on the passengers side. It drives me nuts...
I want to get rid of the noise inside the car
All injectors are working simultaneous and are producing the normal operating tick.
BUT: this tick is amplified by the fuel rail and follows the fuel lines. I can even hear the tick at the fuel filter which is also new.
What is the solution for this problem? other rail, fuel pressure damper, fuel pressure regulator?
thanks
#6
I know they make a typical ticking noise and this is the normal operating sound.
The problem is the loud ticking noise inside the car. I have compared this with 3 other cars with the same engine and injecors, also turbo modified. In the other cars, I've noticed the same tick noise, but barely hearable inside.
Mine is ticking loud inside (like a hydraulic lifter loud)
Again, engine is in perfect shape, no leaks, no HLA problems, oil new, rods ok
I can hear clearly the same tick at the injectors, fuel rail and even on the fuel lines under the car with my stethoscope.
So, I'm sure that I found the cause of the noise, but I don't know how to fix this
When you're listening in and around the engine bay, it's almost not hearable...
The problem is the loud ticking noise inside the car. I have compared this with 3 other cars with the same engine and injecors, also turbo modified. In the other cars, I've noticed the same tick noise, but barely hearable inside.
Mine is ticking loud inside (like a hydraulic lifter loud)
Again, engine is in perfect shape, no leaks, no HLA problems, oil new, rods ok
I can hear clearly the same tick at the injectors, fuel rail and even on the fuel lines under the car with my stethoscope.
So, I'm sure that I found the cause of the noise, but I don't know how to fix this
When you're listening in and around the engine bay, it's almost not hearable...
#7
If those injectors are that much louder than the other cars with the same injectors that youve heard, i doubt they will last much longer. They are noisy, but shouldnt be THAT noisy. I would say, replace them, OR the sound is coming from something else. I cant imagine a tick being loud enough to follow a fuel line back. OR... you have an opening in the firewall somewhere that the sound is coming through. Check the port behind the glovebox that goes through the firewall. There should be a rubber plug or something there
#8
Injectors are new, plug is installed
the injectors are not louder than the compared ones (which were also quite new). Only the sound inside is MUCH louder.
inside the car it sounds like a minor nock (like the begin of a bad rod bearing)
the injector tick is amplified and sounds thru the chassis, best hearable on the floor at the passengers site. (where the fuel lines are running under the car)
I know, this is almost unbelievable, but I can't describe it better than i did..
thanks for the reply
the injectors are not louder than the compared ones (which were also quite new). Only the sound inside is MUCH louder.
inside the car it sounds like a minor nock (like the begin of a bad rod bearing)
the injector tick is amplified and sounds thru the chassis, best hearable on the floor at the passengers site. (where the fuel lines are running under the car)
I know, this is almost unbelievable, but I can't describe it better than i did..
thanks for the reply
#11
after further diagnose it seems to be the Walbro fuel pump or the OEM FPR who can't handle the high pressure.
When I pinch of the fuel supply to the rail with a plier , the noise goes away.
The fuel pump is a walbro 255. I've installed the OEM fuel pump back and the noise was gone...
So fuel pressure is to high for OEM FPR? anybody wih the same experience? solutions?
thanks
When I pinch of the fuel supply to the rail with a plier , the noise goes away.
The fuel pump is a walbro 255. I've installed the OEM fuel pump back and the noise was gone...
So fuel pressure is to high for OEM FPR? anybody wih the same experience? solutions?
thanks
#13
While I am no expert, In this thread it appears to be common knowledge that the 255 is too much for the OEM FPR
#14
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It seems for some the 255 will overpower the stock FPR, others not so much. I have a 255 on my car and so far so good with the stock FPR, but i'm well aware it COULD be an issue and will be keeping my eye on things
#17
Would I choose the Walbro 190 or the 190HP for use with a MS2 without a fuel pressure raiser?
I have an OEM fuel pressure regulator in my spare parts box. But only want to install this one, after placing the more friendly fuel pump.
Fireindc, you solved my problem, THANKS!
I have an OEM fuel pressure regulator in my spare parts box. But only want to install this one, after placing the more friendly fuel pump.
Fireindc, you solved my problem, THANKS!
Last edited by miatadaxdriver; 02-20-2014 at 02:42 PM.
#18
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The regular 190 should be good if you are using MS and a stock FPR. The 190HP was only required for band-aid setups back in the day that required insane amounts of fuel pressure to effectively make small injectors flow more.