[66dream]

I picked up my 66 with 350 from the interior shop today and noticed a ticking sound from the engine (I thought hmm, I must have blown a collector or header gasket)
After getting it home it sounds like its comming from the right bank and sounds like one or more lifters.
How can I be sure?
Should I tear the intake off and check it out?
Weird beacuse the motor was running good (very quiet before I dropped it off at the shop)

Any suggestions? Please help.

 

[troutdog]

I bet it's your exhaust system. Probably an exhaust gasket leak. 10 times out of 10 you can't hear an intake leak or a lifter clogged. If you can't hear it under the car then it's probably an exhaust manifold gasket.
I'll get in the car, fire it up and be like,,, it's got a lifter tapping. Adjust the lifter and it'll still be tapping. It would be the exhaust gasket the whole time.

 

[troutdog]

10 times out of 10 you can't hear an intake leak. It's probably a lifter clogged.
I can't spell

 

[66dream]

how can I determin if it exaughst or lifter noise.
It sure sounds like metal tap outside the car. (lifter)

 

[ironhead]

I picked up my 66 with 350 from the interior shop today and noticed a ticking sound from the engine (I thought hmm, I must have blown a collector or header gasket)
After getting it home it sounds like its comming from the right bank and sounds like one or more lifters.
How can I be sure?
Should I tear the intake off and check it out?
Weird beacuse the motor was running good (very quiet before I dropped it off at the shop)

Any suggestions? Please help.

Sounds like typical Friday night stuff.Baby the car thru the week and get it into on cruise night.In this case..the trim shop boys did it for you.The hydraulic lifters will center themselves..they just found some residual gunk.Drop the oil and carry on.The valve train will settle down with the new oil and filter and part throttle.

 

[rags70ss]

Iron head is correct,,, I had a lifter noise I thought ,,It was a spark plug wilre loose....

 

[66dream]

I will try all suggestions but, I'm pretty sure it's lifter noise. It's definitly metal to metal tick not a sprk ticking sound.
If I drop the oil,is it better to refill with thinner weight oil or heavyer oil to snap the lifter out of i? I'm running 10w40 now.

 

[will02]

Pull a valve cover and take a look. I had a tick that EVERYBODY said was a lifter. Ended up a rocker had punched right through and clacked to beat heck. Glad I didn't try to drive it. $4 later, life was good! :yes:

 

[bdc1013]

pour in some marvel mystery oil...

it's good stuff

 

[66dream]

I just pulled the oil plug and going to let it drain over night.
I'll try changing oil 1st maybe pull the valve cover tomorrow also. marvel oil, hmmmmm might have to try that also

 

[bdc1013]

it stopped a ticking i had. i wasnt sure if it worked or not i changed the oil ut my 5 quarts of shell rotella in with half a quart in at the end

ran the sucker, then the next day when i started it, oil pressure was solid and i had no tick... pretty cool stuff

 

[SWHEATON]

Pull the plug wires off one at a time from the dist for that side of the motor.

If its an exhaust leak when the cyl thats leaking stops firing most if not all the ticking type noise will go away untill you re-attach the plug wire and it starts to fire again with ticking noise returning.

If you do this test and it doesnt seem to be an ex leak then try holding short piece of wood (1x3 or short broom handle) onto the valve cover on the side of the motor with the tick when its running.

The wood tranfers sound pretty good and you will be able to hear the ticking under the v/cover if its a loose rocker when you put your ear on the end of the wood with motor runnig. If you hear ticking readj the valves & check for bad cam by wathing rockers to see in one or 2 of same type(int or EX) are not moving tha same approx distance which woudl indicate a lobe wearing down.

I have used this wood trick may times over the yrs to find ticking rockers,bad mech fuel pumps,bad timing chains,bad water pumps,bad alt bearings,etc,it works for me.

 

[66dream]

Pull the plug wires off one at a time from the dist for that side of the motor.

If its an exhaust leak when the cyl thats leaking stops firing most if not all the ticking type noise will go away untill you re-attach the plug wire and it starts to fire again with ticking noise returning.

If you do this test and it doesnt seem to be an ex leak then try holding short piece of wood (1x3 or short broom handle) onto the valve cover on the side of the motor with the tick when its running.

The wood tranfers sound pretty good and you will be able to hear the ticking under the v/cover if its a loose rocker when you put your ear on the end of the wood with motor runnig. If you hear ticking readj the valves & check for bad cam by wathing rockers to see in one or 2 of same type(int or EX) are not moving tha same approx distance which woudl indicate a lobe wearing down.

I have used this wood trick may times over the yrs to find ticking rockers,bad mech fuel pumps,bad timing chains,bad water pumps,bad alt bearings,etc,it works for me.

Yes, I have seen the broom handle trick done by my dad. I used a stethascope yesterday on the valve cover and it definitly sounds like it's under the valve cover somewhere,but I cant seem to hear which one (maybe all of them. I'm going to pull the valve cover after breakfast)

 

[66dream]

Re: lifter ticking 350(update)

Cahnged oil added 1 quart of Marvel M oil ran for about 10 min (no change)
Pulled valve cover found all rockers to be moving approx the same amount and all oiling.
Took a wooden hammer handle and pressed hard on the rocker (lifter side) on each vavle. (found #6 cylinder exaughst rocker to quit down after holding the hammer handle down tightly. Then that lifter really started spurting out lots of oil.
Should I just readjust that rocker & take up the slack.
Does this mean my cam is wearing out?
By the way this is 355 that has about 15,000 since over haul.

 

[Billy177]

id pull the pushrod and check that if it's fine I would adjust and see if taht fixes it. Also does the oil you are use contain zinc?

 

[66dream]

id pull the pushrod and check that if it's fine I would adjust and see if taht fixes it. Also does the oil you are use contain zinc?

I'm not sure about the zinc. I have used castrol,pennsoil,valvoline in this motor. I allways thought a good brand name oil is fine to use.
I diidn't see anything about zinc on the bottle of pennsiol I just used.
Also, the pushrod,rocker,and pivot ball all looked fine. I reassembled and cranked down about 1/8 trun past contact and it seems to have fixed the ticking.
Amazing one rocker could cause all that noise.

 

[Billy177]

glad that it's fixed. Id run some rotella from now on because a lot of people are having cam failures because of the zinc removed from the oil

 

[66dream]

glad that it's fixed. Id run some rotella from now on because a lot of people are having cam failures because of the zinc removed from the oil

Are you saying that Rotella (like the truckers use Rotella T still has zinc in it?

 

[bdc1013]

yeah trucker oil is money in the bank.