The Ford Barn

cvicky · 06-19-2023, 08:16 PM

272 started making what i thought was a manifold leek, so i poured tranny oil down the carb and the smoke exposed the leek at exhaust manifold wich is now fixed .
noise still there
i can rev engine 3500 rpm in neutral , NO NOISE then soon as i let clutch out and put motor under load noise appears and is obvious when acccellerating

fordor41 · 06-19-2023, 10:01 PM

spark knock? timing?

Daves55Sedan · 06-19-2023, 10:17 PM

It's probably not the engine. I would suspect one of the u-joints or transmission. Do you have the bottom flywheel cover installed on the bellhousing? It's not a good idea to drive without that because a rock can fly up in there and get kicked around by the flywheel.

ventport · 06-20-2023, 06:59 AM

How are the motor mounts? If under load and the motor rocks, it can open up an exhaust leak that is not there when not under load.

cvicky · 06-20-2023, 10:55 AM

it was at 12* i pulled it back to 6* still ticking

cvicky · 06-20-2023, 10:58 AM

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fly wheel cover has been off for 7 yrs
u joints seem ok
next is motor mounts ...

34pickup · 06-20-2023, 06:16 PM

I once had a tick on my 56 292 that finally turned out to be one of the rocker arm shaft mounting bolts loosened up allowing too much clearance on the rocker arm assembly. Listen at the valve cover to see if that can be eliminated.

Daves55Sedan · 06-20-2023, 08:28 PM

Quote:

Originally Posted by 34pickup

I once had a tick on my 56 292 that finally turned out to be one of the rocker arm shaft mounting bolts loosened up allowing too much clearance on the rocker arm assembly.

I would think you would hear it at idle speed also if either a loose rocker shaft mounting bolt or a woefully loose adjusted rocker arm. He said it makes no noise at idle.

cvicky · 06-20-2023, 09:30 PM

yes and i even blocked the wheels with emergency brake on and loaded the motor " no ticking" only while driving

cvicky · 06-21-2023, 09:08 AM

i'll check rocker shafts

Ole Don · 06-21-2023, 03:11 PM

Only when driving takes the noise to behind the flywheel. Those U joints may seem OK, but I would bet the price of a U joint that one is bad.

cvicky · 06-21-2023, 04:01 PM

ok ill yank the drive shaft
stay tunned

Daves55Sedan · 06-21-2023, 10:40 PM

Tell ya what. Leave that flywheel bottom cover off and drive down a few dusty roads. That flywheel acts as a fan blowing dust right at the starter drive. It'll be no time and your starter drive will be stuck in the disengaged position.

cadillac512 · 06-22-2023, 06:48 AM

Put car on jackstands under the rear axle. Run it in gear, accelerate while applying brakes to load the engine. Have a helper listen under hood (or elsewhere) to locate the noise.

Terry

cvicky · 06-22-2023, 08:32 AM

I’ll put cover on when I’m sure rear main is not leaking on my refreshed 272
Off to check u joints

cvicky · 06-22-2023, 11:56 AM

drive shaft is off
everything is free ,smooth and no slop so i greased it now reinstalling
so now its to run car on jack stands
or check rocker shaft and make sure its tight to the head ...

cvicky · 06-22-2023, 04:33 PM

drive shaft is ok
rocker shaft and valve lash is ok
i'll have to get help to run it on stands

Alaska Jim · 06-22-2023, 06:40 PM

Are you sure it is not "pinging", caused by poor fuel octane, or incorrect ignition timing? This only happens under the conditions you described.

cvicky · 06-22-2023, 08:56 PM

sounds like a manifold leak , i'll go at it again tommorow
i'm at 6* maybe pull a bit more timing out
i only use premium pump and i've put a few tanks recently

fordor41 · 06-22-2023, 10:18 PM

have a manual choke? if not set choke part way closed and retry. If you don't hear the noise it's running lean.

06-19-2023, 08:16 PM	#1
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	y block ticking 272 started making what i thought was a manifold leek, so i poured tranny oil down the carb and the smoke exposed the leek at exhaust manifold wich is now fixed . noise still there i can rev engine 3500 rpm in neutral , NO NOISE then soon as i let clutch out and put motor under load noise appears and is obvious when acccellerating

06-19-2023, 10:01 PM	#2
fordor41 Senior Member Join Date: Oct 2011 Location: elmira,ny Posts: 1,518	Re: y block ticking spark knock? timing?

06-19-2023, 10:17 PM	#3
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: y block ticking It's probably not the engine. I would suspect one of the u-joints or transmission. Do you have the bottom flywheel cover installed on the bellhousing? It's not a good idea to drive without that because a rock can fly up in there and get kicked around by the flywheel.

06-20-2023, 06:59 AM	#4
ventport Member Join Date: Feb 2014 Location: St Paul MN Posts: 36	Re: y block ticking How are the motor mounts? If under load and the motor rocks, it can open up an exhaust leak that is not there when not under load.

06-20-2023, 10:55 AM	#5
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking it was at 12* i pulled it back to 6* still ticking

06-20-2023, 10:58 AM	#6
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking Sponsored Links (Register now to hide all advertisements) fly wheel cover has been off for 7 yrs u joints seem ok next is motor mounts ...

06-20-2023, 06:16 PM	#7
34pickup Senior Member Join Date: May 2010 Location: Huntsville Al Posts: 1,526	Re: y block ticking I once had a tick on my 56 292 that finally turned out to be one of the rocker arm shaft mounting bolts loosened up allowing too much clearance on the rocker arm assembly. Listen at the valve cover to see if that can be eliminated. __________________ Matt 24:36-41

06-20-2023, 09:30 PM	#9
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking yes and i even blocked the wheels with emergency brake on and loaded the motor " no ticking" only while driving

06-21-2023, 09:08 AM	#10
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking i'll check rocker shafts

06-21-2023, 03:11 PM	#11
Ole Don Senior Member Join Date: May 2010 Location: St. Michael, Minnesota Posts: 1,713	Re: y block ticking Only when driving takes the noise to behind the flywheel. Those U joints may seem OK, but I would bet the price of a U joint that one is bad.

06-21-2023, 04:01 PM	#12
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking ok ill yank the drive shaft stay tunned

06-21-2023, 10:40 PM	#13
Daves55Sedan Senior Member Join Date: May 2010 Location: Granite City, Illinois Posts: 3,008	Re: y block ticking Tell ya what. Leave that flywheel bottom cover off and drive down a few dusty roads. That flywheel acts as a fan blowing dust right at the starter drive. It'll be no time and your starter drive will be stuck in the disengaged position.

06-22-2023, 06:48 AM	#14
cadillac512 Senior Member Join Date: Apr 2019 Location: Kansas Posts: 921	Re: y block ticking Put car on jackstands under the rear axle. Run it in gear, accelerate while applying brakes to load the engine. Have a helper listen under hood (or elsewhere) to locate the noise. Terry __________________ "It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302

06-22-2023, 08:32 AM	#15
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking I’ll put cover on when I’m sure rear main is not leaking on my refreshed 272 Off to check u joints

06-22-2023, 11:56 AM	#16
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking drive shaft is off everything is free ,smooth and no slop so i greased it now reinstalling so now its to run car on jack stands or check rocker shaft and make sure its tight to the head ...

06-22-2023, 04:33 PM	#17
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking drive shaft is ok rocker shaft and valve lash is ok i'll have to get help to run it on stands

06-22-2023, 06:40 PM	#18
Alaska Jim Senior Member Join Date: May 2010 Location: Palmer, Alaska Posts: 1,575	Re: y block ticking Are you sure it is not "pinging", caused by poor fuel octane, or incorrect ignition timing? This only happens under the conditions you described.

06-22-2023, 08:56 PM	#19
cvicky Senior Member Join Date: Jul 2018 Location: Ottawa, Ont Canada Posts: 161	Re: y block ticking sounds like a manifold leak , i'll go at it again tommorow i'm at 6* maybe pull a bit more timing out i only use premium pump and i've put a few tanks recently

06-22-2023, 10:18 PM	#20
fordor41 Senior Member Join Date: Oct 2011 Location: elmira,ny Posts: 1,518	Re: y block ticking have a manual choke? if not set choke part way closed and retry. If you don't hear the noise it's running lean.