C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

L98 with "ticking" noise..

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Old Feb 12, 2002 | 06:59 PM
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Default L98 with "ticking" noise..

Does a L98 "tick" when ideling? Is it the injectors that make a "tick" sound. Or is something worng with my engine?
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Old Feb 12, 2002 | 07:01 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

where is the ticking coming from?
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Old Feb 12, 2002 | 07:03 PM
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Default Re: L98 with "ticking" noise.. (Glock'94)

If I put my ear up to the injectors, they do have a slight tick, but not very loud or noticable...
:cheers:
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Old Feb 12, 2002 | 07:03 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

A small amount of ticking in a L98 would normally be attributed to the injection system. Probably normal, unless this is something that just developed.
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Old Feb 12, 2002 | 07:06 PM
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Default Re: L98 with "ticking" noise.. (B R)

Put some Chevron Techron in your gas and that might quiet them down a bit.
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Old Feb 12, 2002 | 07:09 PM
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Default Re: L98 with "ticking" noise.. (Glock'94)

Somewhere around the valve cover area. Hard to tell.. I think it sounds more on the driver side, but that could be wrong. Its hard to point out exact the locatation. The speed of the "ticking" sounds follow RPM. Its not a mettalic sound, sounds more like a mecanical realy going on/off fast..


Regads :confused:
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Old Feb 12, 2002 | 07:11 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

I would just keep an eye on it. It could be a lifter starting to fail. If so, it will get louder.

You don' thave 1.6 RR's by chance do you?
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Old Feb 12, 2002 | 07:17 PM
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Default Re: L98 with "ticking" noise.. (Glock'94)

No 1.6 RR's.. I did just start the car up for the first time this year. Cant recal a ticking sound last summer. How can i check my lifters?
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Old Feb 12, 2002 | 07:24 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

could it be bad fuel, water in it? It has been staying in the tank for 7 monts..

regards
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Old Feb 12, 2002 | 07:29 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

I would definitely empty that tank... I would think a little ticking noise after sitting for that long would be normal. Just be sure to give it a good oil change right away.
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Old Feb 12, 2002 | 07:53 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

No 1.6 RR's.. I did just start the car up for the first time this year. Cant recal a ticking sound last summer. How can i check my lifters?
:confused: yeah is there some procedure on that :confused:

:cheers:
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Old Feb 12, 2002 | 07:53 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

No 1.6 RR's.. I did just start the car up for the first time this year. Cant recal a ticking sound last summer. How can i check my lifters?
:confused: yeah is there some procedure on that :confused:

:cheers:
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Old Feb 12, 2002 | 08:28 PM
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Default Re: L98 with "ticking" noise.. (devilfish)

I had the same problem. Does the noise quiet down after your engine warms up? I replaced my fuel injectors and roller rockers at the same time. After that, the sound disappeared. It could be either one. I can't tell you which one for sure.
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Old Feb 12, 2002 | 09:09 PM
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Default Re: L98 with "ticking" noise.. (NUckINg FuTS)

Change the oil and put a bottle of Techron in your gas and see if it comes back. I hope it isnt your valves clicking
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Old Feb 13, 2002 | 01:03 AM
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Default Re: L98 with "ticking" noise.. (Glock'94)

Mine ticks loud enough to hear a little even with the hood shut-- had it to a guy today who worked at a GM dealership for 15 years from 83--- and he said nothing even though she was ticking away-- ive been told its the injectors.
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Old Feb 13, 2002 | 01:44 AM
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Default Re: L98 with "ticking" noise.. (Jsailor24)

My injectors tick like &#$%&#$&! At idle I can hear the injectors over engine w/ no pre-cats from 20 feet. They are old '88 injectors so I don't worry. Sounds like lifter tick, but it's injectors on mine. I have a set of LT1 injectors I am going to get rebuilt, hopefully that will quiet the engine a bit, otherwise, true duals w/ no cats. :lol:
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Old Feb 13, 2002 | 05:59 AM
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Default Re: L98 with "ticking" noise.. (BobMachus)

yeah it sounds less when the engine is hot.
How bad could it be if it is one of my lifters? Is it hard to change ? Can I somehow check that it really is the lifters? Can i brake the engine if run my car like this?

Thanks for the help..
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Old Feb 13, 2002 | 08:20 AM
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Default Re: L98 with "ticking" noise.. (devilfish)

I also have a tick on my '92 and get this, It is coming from the CAT on the right side.
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Old Feb 13, 2002 | 04:59 PM
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Default Re: L98 with "ticking" noise.. (Kevin McGrade)

I have a tick also. Most noticable when cold. Did not think of the injector being that noisy. Need to get to listen closer to the noise. I was thinking of adjusting the rocker arms, because that is what it sounds like to me. A small exhaust leak would have a similar sound.

A side question, how long would you expect the timing chain to last? This a 90 with a stock L98 with roller lifters and 108k miles. Have been considering changing it for preventative maintenance. In the past I have seen a knocking sound coming from a loose timing chain.
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Old Feb 13, 2002 | 06:43 PM
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Default Re: L98 with "ticking" noise.. (Jsailor24)

Mine ticks loud enough to hear a little even with the hood shut-- had it to a guy today who worked at a GM dealership for 15 years from 83--- and he said nothing even though she was ticking away-- ive been told its the injectors.
My 91 injectors tick somewhat loud. Seems to be a GM standard. My LT-1 equipped 93 Z/28 did the same thing.
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