LT4 Ticking need ideas
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Read previous thread. Cause of previous failure? New less invasive idea remove oil filter and cut in half look for "bad stuff". If you have access to bore scope. remove spark plugs and injectors of cylinders in question and take a look. Drain plug hole
also
also
Last edited by Kevova; Sep 3, 2014 at 07:23 PM.
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
It's really hard to tell from a video on the internet. I recommend a stethescope, it will help you isoate and pinpoint where the sound is coming from. I had a lifter go bad, and the sound was similar, but the frequecy it became audible was around 3000 rpm, and was similar to yours. So, not sure if lifter is the thing.
I don't recall what trans your running, but that might be worth a look/listen as well. Pilot bearing, clutch fork, flywheel, these things can create noises as well and can be easily mistaken as engine noise in these cars.
I don't recall what trans your running, but that might be worth a look/listen as well. Pilot bearing, clutch fork, flywheel, these things can create noises as well and can be easily mistaken as engine noise in these cars.
Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
It's really hard to tell from a video on the internet. I recommend a stethescope, it will help you isoate and pinpoint where the sound is coming from. I had a lifter go bad, and the sound was similar, but the frequecy it became audible was around 3000 rpm, and was similar to yours. So, not sure if lifter is the thing.
I don't recall what trans your running, but that might be worth a look/listen as well. Pilot bearing, clutch fork, flywheel, these things can create noises as well and can be easily mistaken as engine noise in these cars.
I don't recall what trans your running, but that might be worth a look/listen as well. Pilot bearing, clutch fork, flywheel, these things can create noises as well and can be easily mistaken as engine noise in these cars.
Burning Brakes
Joined: Mar 2013
Posts: 1,131
Likes: 5
From: Illinois/Wisconsin Line
With the valve cover off push on # 6 & 8 intake and exhaust rockers while its running at idle with a 3 foot screwdriver and see what happens to the sound.
And is #6 or #8 rockers threaded down more than the others?
And is #6 or #8 rockers threaded down more than the others?
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
Anything is possible. I would think if the crank or rod was hitting a windage tray it would have been evident at intitial start up. This thing does have 500miles on it. But there is always a possibility.
I have an actual doctor stethoscope that I used to try to isolate the tick but couldn't isolate it.
I have an actual doctor stethoscope that I used to try to isolate the tick but couldn't isolate it.
Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
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Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
OK, got a auto stethoscope from AutoZone today and when got home went probing. Now I am really confused. I didn't seem to narrow down the tick in the head where I thought the tick was coming from. The thing that was most prominent to me was a vibration on the bottom in the center of the Canton Road Race oil pan. Could this be something in the bottom hitting the oil pan or a wind age tray?
Anyone ever experienced something like this?
Anyone ever experienced something like this?
Le Mans Master
Joined: Dec 2006
Posts: 5,139
Likes: 482
From: H-Town Texas
OK, got a auto stethoscope from AutoZone today and when got home went probing. Now I am really confused. I didn't seem to narrow down the tick in the head where I thought the tick was coming from. The thing that was most prominent to me was a vibration on the bottom in the center of the Canton Road Race oil pan. Could this be something in the bottom hitting the oil pan or a wind age tray?
Anyone ever experienced something like this?
Anyone ever experienced something like this?
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
Drifting
Joined: Oct 2005
Posts: 1,920
Likes: 51
From: Angier nc
Mine had a ticking noise and it turned out to be the crank walking in the block.Thrust bearing was toast and the motor was soon after.Not comparing an 85k mile motor to yours but it did happen to mine.
Melting Slicks
Joined: Nov 2005
Posts: 3,323
Likes: 142
From: Green Valley Arizona
I was going to suggest pulling the oil dip stick out with the engine running to eliminate it...but saw that you already took it back to the builder.
Be sure to let us know what the problem / solution is.
LT4 owners want to know.
Be sure to let us know what the problem / solution is.
LT4 owners want to know.
Thread Starter
Max G’s
Joined: Nov 2008
Posts: 2,751
Likes: 79
From: Monroe OH
NCM Sinkhole Donor
Well, just got a call a little while ago and luckily we are not looking at an engine tick. May be a weight from the flywheel or clutch. Keep you posted so if you ever hear this tick and eliminate things as I have you can have another direction to look. 