Valve tick or injector tick
Thread Starter
Racer
Joined: Sep 2003
Posts: 322
Likes: 0
From: Gap PA
Valve tick or injector tick
Just did valve seals on the 85, everything went well.
I used the factory manual method of adjusting the valves (adjust to zero lash then one turn, all while using the timing marks blah blah...). I got it all back together, fired it up and it ran right away with no miss or anything.
I do notice a bit of a tick though. Its about the same tick that I had before I had it apart. It almost seems like its the injector's ticking and not a valve noise. You can't hear it with the hood down in the car, very faintly when your outside the car with the hood down, and clear when the hood is up (to judge how loud it is).
When placing a finger on some of the injectors you can almost "feel" the tick leading me to believe it is them ticking and not a very slightly loose valve.
If I do check the valves again, should I start from scratch with the procedure or just give the adjuster nut small turn (1/8").
Just want some opinions...
P.S. It was nice to take it out for the first time this year though!
I used the factory manual method of adjusting the valves (adjust to zero lash then one turn, all while using the timing marks blah blah...). I got it all back together, fired it up and it ran right away with no miss or anything.
I do notice a bit of a tick though. Its about the same tick that I had before I had it apart. It almost seems like its the injector's ticking and not a valve noise. You can't hear it with the hood down in the car, very faintly when your outside the car with the hood down, and clear when the hood is up (to judge how loud it is).
When placing a finger on some of the injectors you can almost "feel" the tick leading me to believe it is them ticking and not a very slightly loose valve.
If I do check the valves again, should I start from scratch with the procedure or just give the adjuster nut small turn (1/8").
Just want some opinions...
P.S. It was nice to take it out for the first time this year though!
Last edited by 85RIT; Mar 21, 2008 at 04:23 PM.
Advanced
Joined: May 2007
Posts: 59
Likes: 0
From: Loves Park IL
Sounds like the injector's on my 87. On mine when you touch the injector you can "feel" the tick. Im guessing that your injector's are the same as mine and that your hearing the injector's.
BTW: It drives me nuts and every once in awhile I think I have valvetrain issues. I know I dont have issues but its annoying to hear ticking under the hood.
Good Luck!
BTW: It drives me nuts and every once in awhile I think I have valvetrain issues. I know I dont have issues but its annoying to hear ticking under the hood.
Good Luck!
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
If you don't have an automotive stethoscope, you can use a long screw driver or a wooden dowel as a substitute. Place it on an injector and put your ear to the other end of the dowel or screw driver. Move it from injector to injector. Soon you will be able to "read" the sounds. If it is only one or a couple of injectors or valves clicking, you should soon be able to decide of the noise is from the injectors or not. Since the noise is the same as before you took it apart, at least you know you didn't mess anything up. From reading your post, I get the feeling it is injectors and that you have nothing to be alarmed over.
RACE ON!!!
RACE ON!!!
Pro
Joined: May 2007
Posts: 638
Likes: 1
From: Robesonia Pa
If you don't have an automotive stethoscope, you can use a long screw driver or a wooden dowel as a substitute. Place it on an injector and put your ear to the other end of the dowel or screw driver. Move it from injector to injector. Soon you will be able to "read" the sounds. If it is only one or a couple of injectors or valves clicking, you should soon be able to decide of the noise is from the injectors or not. Since the noise is the same as before you took it apart, at least you know you didn't mess anything up. From reading your post, I get the feeling it is injectors and that you have nothing to be alarmed over.
RACE ON!!!
RACE ON!!!
I use this trick all the time. When you get to the source of the tick you will be able to tell. IMO the screwdriver works better than wood , but I'm sure that depends on how good your hearing is
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
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Racer
Joined: Sep 2007
Posts: 393
Likes: 0
From: Bartonville Illinois
Mechanics stethoscopes are really cheap anymore. Get one and listen to your engine at relative points from cylinder to cylinder. Touch all the injectors at about the same place and listen for differences.
You can also get digital volt meters very cheap these days. Buy one and learn how to check your cars components. Taking meter readings is about one of the easiest things you can do on a car and they can tell you a lot. Its not really hard to do.
When you get a meter I'm sure someone here will give you tips on using it.
You can also get digital volt meters very cheap these days. Buy one and learn how to check your cars components. Taking meter readings is about one of the easiest things you can do on a car and they can tell you a lot. Its not really hard to do.
When you get a meter I'm sure someone here will give you tips on using it.
