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Old 10-22-2009, 09:04 PM   #1 (permalink)
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Ticking sound, what is it?

Hey guys, it's been a while since i've posted. I started a family and bought a "family car" and couldn't take it anymore, so two years later I sold my *cough*jetta*cough* and bought a 65 mustang. It has a 1968 302 (289 crank), Holley 600cfm, TRW forged flat top pistons and some variation of a Crane 260 cam with long tube headers. It was rebuilt in 1989 and has only 16,200 miles on the motor. When I test drove the car, it had a ticking sound on acceleration only and immediately quieted up when you let off the gas. The car started up bone quiet and idled smoothly. I have been driving it all week (40 miles a day) and the sound may be getting worse, or at least I'm listening for it more. You can now hear the tick at idle from the driver side of the motor toward the firewall. Oh, and the engine has 60psi oil pressure at freeways speeds and 35-40psi at idle.

It doesn't sound good to me, but I had a 66 mustang with a 351w in the past with long tube headers, and 3 times the header gasket blew out and caused the nastiest sounding metal on metal tick and it was just the gasket!

Anyhow, i'll be looking at the header gaskets this weekend but I just can't stand it anymore. I have recorded the sound using my phone close to the header pipes on the driver side. What do you guys think?

http://www.corecoding.com/sounds/tick.wav

Chris
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Last edited by fordracerguy; 10-22-2009 at 10:00 PM.
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Old 10-22-2009, 09:36 PM   #2 (permalink)
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Re: Ticking sound, what is it?

The clip didn't work for me but it does sound like a header leak from what you describe...
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Old 10-22-2009, 09:38 PM   #3 (permalink)
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Re: Ticking sound, what is it?

Yep, I think hedder too, even without the sound link.

Congrats on the new Stang!
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Old 10-22-2009, 10:01 PM   #4 (permalink)
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Re: Ticking sound, what is it?

Thanks guys! I just updated the sound file to a more compatable format. If you could try to click on it one more time (in the first post) I'd appreciate it! Remember, this is a recording right next to the header pipes.
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Old 10-22-2009, 10:17 PM   #5 (permalink)
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Re: Ticking sound, what is it?

OK, now you got two choices from my ear...

Weak lifter or adjustable lifter out of adjustment (check the lock nuts) or a leaky header gasket.

If it get's NOISIER on acceleration then you got a hedder leak...
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Old 10-22-2009, 10:18 PM   #6 (permalink)
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Re: Ticking sound, what is it?

I just listened to a bunch of "Rod Knock" videos on YouTube and the sound I have is 100% even with the revolution of the motor, not one time does it knock more or less. The videos on YouTube have very random knocking, and is much louder! I am feeling a bit better. This weekend will tell.

Oh and it does get louder with acceleration but still 100% in tune with the revolution of the motor.
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Old 10-23-2009, 07:50 AM   #7 (permalink)
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Re: Ticking sound, what is it?

That lends greater gravity to the exhaust leak.

Lifters do not tick louder with rpms, only faster. Leaks tick Louder with rpms, but it's harder to hear the volume increase due to the entire system getting louder at the same time.

Most rod knocks are inconsistent at lower rpm's.
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Old 10-23-2009, 10:07 AM   #8 (permalink)
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Re: Ticking sound, what is it?

Quote:
Originally Posted by fordracerguy View Post
I just listened to a bunch of "Rod Knock" videos on YouTube and the sound I have is 100% even with the revolution of the motor, not one time does it knock more or less. The videos on YouTube have very random knocking, and is much louder! I am feeling a bit better. This weekend will tell.

Oh and it does get louder with acceleration but still 100% in tune with the revolution of the motor.
One way to test for a header leak is to accelerate in low gear to about 30-35mph, then let off of the gas while in low gear. If you hear a sound that reminds you of a popcorn popper through the exhaust as the car slows down, you confirmed a header leak.

Rod-knock and exhaust leaks are at same rate as engine RPM. Lifter noises are at 1/2 engine speed.

Frank
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Old 10-23-2009, 02:03 PM   #9 (permalink)
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Re: Ticking sound, what is it?

Quote:
Originally Posted by dadurweird View Post

Rod-knock and exhaust leaks are at same rate as engine RPM. Lifter noises are at 1/2 engine speed.

Frank

Yes, but, Rod knocks are intermittent. It all depends on oil flow to the wounded area.
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Old 10-23-2009, 07:55 PM   #10 (permalink)
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Re: Ticking sound, what is it?

Welcome back from the dark side. I thought the recording sounded more metallic like a lifter but it is hard to tell. You could also use a stethoscope, card board tube, Or a rod of some kind to hold up to your ear to maybe help eliminate a lifter sound. Card board tube is a good tool at times. When your done listening you can hold it up to your eye and spy on FE.
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Old 10-24-2009, 06:51 AM   #11 (permalink)
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Re: Ticking sound, what is it?

ok guys i have a tick tick tick and a hack hack hack and a wheeze wheeze wheeze and thats just me now heres what my 1964 ford galaxie xl convertible is doing ,,she started a tick tick tick but not until it warms up,,when its cold it sounds great.the oil idiot light inside the car starts to flicker ,,so couple of my buddies say change the oil sending unit well that might take care of the light flicker in some cases but wouldnt cause a tick,,one buddy says his car did the same thing so trust me hes says put a high volume oil pump and new screen in the ole 352 engine ,,i did and it sounded great and i thought i had it whooped and then it warmed up ,,tick tick tick with a idiot light flicker lots of work for nutting ,, so that brings me in here to the pros ,,,you guys .................could it be a lifter ? rod bearings? lets hear your opinion ..my wife says wouldnt be for my big nose id be all ears ..so im listening ...

i have a spare 352 engine sitting out back in a 65 galaxie if push comes to shove ill drop that in but im not getting any younger and brushing my tooth is a chore anymore ...

Last edited by ford dude; 10-24-2009 at 06:53 AM.
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Old 10-24-2009, 10:58 AM   #12 (permalink)
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Re: Ticking sound, what is it?

I think you got worn lifters and a bad set of CAM Bearings....
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Old 10-24-2009, 11:40 AM   #13 (permalink)
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Re: Ticking sound, what is it?

Quote:
Originally Posted by ford dude View Post
ok guys i have a tick tick tick and a hack hack hack and a wheeze wheeze wheeze and thats just me now heres what my 1964 ford galaxie xl convertible is doing ,,she started a tick tick tick but not until it warms up,,when its cold it sounds great.the oil idiot light inside the car starts to flicker ,,so couple of my buddies say change the oil sending unit well that might take care of the light flicker in some cases but wouldnt cause a tick,,one buddy says his car did the same thing so trust me hes says put a high volume oil pump and new screen in the ole 352 engine ,,i did and it sounded great and i thought i had it whooped and then it warmed up ,,tick tick tick with a idiot light flicker lots of work for nutting ,, so that brings me in here to the pros ,,,you guys .................could it be a lifter ? rod bearings? lets hear your opinion ..my wife says wouldnt be for my big nose id be all ears ..so im listening ...

i have a spare 352 engine sitting out back in a 65 galaxie if push comes to shove ill drop that in but im not getting any younger and brushing my tooth is a chore anymore ...
Do you have an oil pressure gauge besides the idiot light? If not, I would install an oil pressure gauge to see what your oil pressue reads at idle and throughout the rpm range.

If you installed a high volume oil pump and your oil pressure is such that your idiot light is flickering, reflected by the pressure gauge, you may have some major bearing issues.

Frank
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Old 10-24-2009, 12:36 PM   #14 (permalink)
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Re: Ticking sound, what is it?

agree hook up mechanical oil pressure gauge
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Old 10-24-2009, 03:03 PM   #15 (permalink)
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Re: Ticking sound, what is it?

I always thought, and correct me if I'm wrong, that you had to run a deep sump pan to install a high volume oil pump. Otherwise it would starve the pick up for oil?
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