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#41
12-01-2019, 04:50 AM
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Quote:
Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#42
12-01-2019, 05:02 AM
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 I'd like to hear it at regular speed.The beginning and end was not long enough for me to wrap my head around it.
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#43
12-01-2019, 05:28 AM
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__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#44
12-01-2019, 06:06 AM
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Not I'm really confused. I've been watching your threads for quite a while hoping you would solve it, but not wanting to muddy up the water with useless thoughts.
In the slow mo it sounds metallic. In the reg speed it sounds like an exhaust leak or a lifter tick to me. Seems too fast to be either. The fact that it seems to disappear at speed seems to point to an exhaust leak. Wish I were there with my stethoscope, I have one that was given to me by a nurse maybe 35 years ago, which I took off the metal chest listener thingy and spliced in a rubber hose extension of the same size tubing where I can stick it in there to listen to a spot and really pin point a particular spot without fear of getting it wrapped up in moving parts and causing damage to me or anything else. No metal end to transmit sound that way, only what the opening at the end brings in. It has been a tool that I simply cannot live without! How is your stethoscope equipped? Is it both ears and how pin point can you be with it? |
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#45
12-01-2019, 06:40 AM
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Quote:
Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#46
12-01-2019, 06:57 AM
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The difference between what you are using and what I have is like night and day!
Are you friendly with any health people? |
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#47
12-01-2019, 08:03 AM
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Just to make sure, your front main isn't like this thread?
http://forums.maxperformanceinc.com/...d.php?t=835223 
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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#48
12-01-2019, 08:17 AM
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Quote:
Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#49
12-01-2019, 08:50 AM
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Sam, is the tick coming from under one of the valve covers?
I just recalled that back in 68 a pals 421 was making a ticking sound we could not find for a while and in the end we found that one of the inner valve springs had busted!
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#50
12-01-2019, 09:10 AM
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The tick appears to come at every other crank revolution, makes me think it has to come from camshaft or above?
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#51
12-01-2019, 10:22 AM
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Yup. It’s every other crank revolution. That implied cam driven stuff like lifters, valvetrain, fuel pump. But also stuff related to power stroke on one cylinder like wrist pin, piston slap, rod knock. That’s why I did the distributor test.
Thing is, I have ruled almost all of this out. Noise definitely at the front. Valve covers quiet. Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod Last edited by glhs#116; 12-01-2019 at 10:28 AM. |
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#52
12-01-2019, 10:59 AM
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Fuel pump eccentric slap due to loose camshaft bolt?
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#53
12-01-2019, 11:03 AM
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Hi Sam,
Most likely something is worn that you were unable to measure . Possibly lifter bore, piston bore, wrist pins, etc. Car is running so keep on driving. Best Jeff
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Carburetor building & modification services Servicing the Pontiac community over 20 years |
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#54
12-01-2019, 11:16 AM
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Quote:
I was feeling more confident driving it when I was more suspicious of it being exhaust leak. The more I think of it as interference of some kind the less good I feel. Tempted to throw a new timing set on it. Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#55
12-02-2019, 04:00 AM
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I was just looking back at my last cam swap. How flush do the front galley plugs need to be? Could these contact the chain?
Closer Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod Last edited by glhs#116; 12-02-2019 at 04:47 AM. |
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#56
12-02-2019, 06:04 AM
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Are those cam retainer plate bolts OEM? Off the top of my head I didn't remember them having a head that high. Just a thought
And yep, it certainly would not hurt to have those plugs flush. From the factory they were usually slightly below the surface. Hey ... you just know you are going to end up pulling that cover off ... you're like me, I can't sleep when sh*t like this happens .... I'd be hearing that tick all night 
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#57
12-02-2019, 06:09 AM
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Quote:
Quote:
Quote:
But no. I have only one set of timing cover gaskets and I'm going to wait for the new timing set I ordered to arrive. Probably. Sam
__________________
-- Sam Agnew Where you come from is gone; where you thought you were going to, weren't never there; and where you are ain't no good unless you can get away from it. Ministry - Jesus Built My Hotrod |
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#58
12-02-2019, 07:11 AM
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The depth that those plugs are seated is fine Sam.
If they where contacting the chain you would not have a tic, but a scraping sound at first that would likely be gone or well subdued by now.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#59
12-02-2019, 11:10 AM
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Correct, it would sound like a "meat grinder" chewing up a hand full of hardened 3/8" washers if the timing chain were making contact with them!......Cliff
__________________
If you can read this, thank a teacher. If you can read this in English, thank a Veteran! https://cliffshighperformance.com/ 73 Ventura, SOLD 455, 3740lbs, 11.30's at 120mph, 1977 Pontiac Q-jet, HO intake, HEI, 10" converter, 3.42 gears, DOT's, 7.20's at 96mph and still WAY under the roll bar rule. Best ET to date 7.18 at 97MPH (1/8th mile), |
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#60
12-02-2019, 11:27 AM
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Was this a stock crank or stroker crank?
(didn't go back to read it all) 
__________________
John Wallace - johnta1 Pontiac Power RULES !!! www.wallaceracing.com Winner of Top Class at Pontiac Nationals, 2004 Cordova Winner of Quick 16 At Ames 2004 Pontiac Tripower Nats KRE's MR-1 - 1st 5 second Pontiac block ever! "Every man has a right to his own opinion, but no man has a right to be wrong in his facts." "People demand freedom of speech to make up for the freedom of thought which they avoid." – Socrates |
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