|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
06-12-2019, 10:36 AM | #1 |
Member
Join Date: Jun 2017
Location: Bismarck, ND
Posts: 84
|
Help me identify engine noise?
My Tudor, after a good 30-45 minute drive at 40mph speeds, makes a rotational scraping noise (tzing-tzing-tzing) at low idle that I believe is coming from the lower engine area. If I shut the engine off and start it again, it goes away until driven the same way again. If I run the engine in higher idle, the noise goes away. Never makes this noise when cold. I've ruled out water pump, generator/alternator, clutch, etc.
My one theory is...could it be the oil pump? Could it be that after running for that length of time, that enough oil is atomized/in the dipper tray and the screen clogged enough that it could be starving for oil? I've not had the pan off recently, so I don't know what condition the pump screen is in. |
06-12-2019, 10:56 AM | #2 |
Senior Member
Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
|
Re: Help me identify engine noise?
Have you gone around with a broom handle or mechanics stethoscope to hone in on where the noise is coming from? If not get the engine to make that noise and see if it's loudest right down by the oil pump.
How did you rule out the water pump, generator and clutch? Did you run the engine with the belt off? Would be great if you could record the sound. |
Sponsored Links (Register now to hide all advertisements) |
|
06-12-2019, 11:13 AM | #3 |
Member
Join Date: Jun 2017
Location: Bismarck, ND
Posts: 84
|
Re: Help me identify engine noise?
Yes, I've run the engine without the belt. Since it stops when the engine does, running without the belt doesn't usually result in the noise. To chase this, I have run both generator and alternator, two different fan belts, steel fan and aluminum fan, and the water pump is an eighteen months old leakless. I've also spun each of these by hand and no issues. The noise is too low in the engine compartment for me to seriously consider the water pump.
|
06-12-2019, 12:11 PM | #4 |
Senior Member
Join Date: Aug 2018
Posts: 2,332
|
Re: Help me identify engine noise?
How about using your phone camera in video mode, short video/sound, post to u-tube, post a link here to the u-tube video.?
|
06-12-2019, 12:18 PM | #5 |
Senior Member
Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
|
Re: Help me identify engine noise?
Yup I would concur that you can definitely say that the noise is not accessory related. Can't think of anything down low that would make that noise sort of noise.
How did you determine that is isn't clutch related? |
06-12-2019, 01:02 PM | #6 |
Senior Member
Join Date: May 2010
Location: Pitt Meadows BC
Posts: 1,003
|
Re: Help me identify engine noise?
Sponsored Links (Register now to hide all advertisements)
|
06-12-2019, 01:10 PM | #7 |
Member
Join Date: Jun 2017
Location: Bismarck, ND
Posts: 84
|
Re: Help me identify engine noise?
I've never done anything with/to the starter. It's been in the car for at least twenty years.
Moving the clutch pedal all the way in or out does not affect the noise. I'll have to see if I can "prompt" the car to make the noise, and then post it somehow. |
06-12-2019, 02:27 PM | #8 |
Senior Member
Join Date: Apr 2011
Location: Davenport, Iowa
Posts: 2,112
|
Re: Help me identify engine noise?
Check your private messages.
Marshall |
06-12-2019, 07:39 PM | #9 |
Senior Member
Join Date: Jan 2019
Location: Florida Panhandle
Posts: 585
|
Re: Help me identify engine noise?
Might suck in some Marvel Mystery Oil just to eliminate any top end possibilities.
|
06-12-2019, 08:11 PM | #10 |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
|
Re: Help me identify engine noise?
"Might" be a vibration in the L/H hood side, or 79,231 other things----LOL
Bill Noisy
__________________
"THE ASSISTANT GURU OF STUFF" |
06-12-2019, 08:34 PM | #11 |
Senior Member
Join Date: Apr 2015
Location: NH
Posts: 182
|
Re: Help me identify engine noise?
Consider the distributor shaft may be thirsty. Mine was. Your description of noise sounds similar. Lube took care of it.
__________________
'30 Coupe |
06-12-2019, 09:32 PM | #12 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
|
Re: Help me identify engine noise?
Could it be the starter drive pinion moving forward and hitting the flywheel teeth?
Very unlikely, but never say never. |
06-12-2019, 09:36 PM | #13 |
Senior Member
Join Date: Aug 2018
Posts: 2,332
|
Re: Help me identify engine noise?
|
06-13-2019, 10:36 AM | #14 |
Senior Member
Join Date: Jun 2015
Location: Red Deer, Alberta
Posts: 5,046
|
Re: Help me identify engine noise?
I had a similar noise, it was the springs or the plate of the front motor mount where it sits on the crossmember. A little oil shut it right up.
__________________
If you don't hear a rumor by 10 AM, start one!. Got my education out behind the barn! |
06-13-2019, 12:05 PM | #15 |
Senior Member
Join Date: Sep 2010
Location: michigan
Posts: 1,126
|
Re: Help me identify engine noise?
Did you check the throw out bearing in the bell housing there is also a grease fitting that requires grease ,that noise maybe radiating through the bell housing hope this helps Joe !
|
06-14-2019, 07:18 AM | #16 |
Member
Join Date: Jun 2017
Location: Bismarck, ND
Posts: 84
|
Re: Help me identify engine noise?
Yes, I had considered the throwout bearing. It's been about 2K miles since I greased it, so it does need to be serviced. Maybe I need to shorten the interval on this one?
|
06-14-2019, 07:36 AM | #17 |
Senior Member
Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
|
Re: Help me identify engine noise?
The modern throw out bearings that are sold are sealed for life. Even if they weren't I don't think the method Ford came up with for getting grease up to the bearing is very effective.
|
06-14-2019, 08:00 AM | #18 |
Senior Member
Join Date: May 2010
Location: Jordan, MN
Posts: 1,411
|
Re: Help me identify engine noise?
Monto (post#11) may have properly suggested to oil your distributor. If your distributor is putting extra load on the oil pump drive gear, the loaded drive gear can cause the camshaft to walk forward and make a grinding noise as it bottoms against the plunger and spring.
This condition usually results in a thumping or knocking noise but maybe.... It is an easy test to add some oil. Hope you find the cause soon. Let us know what it is if you do. Good Day! |
06-14-2019, 08:33 AM | #19 |
Senior Member
Join Date: May 2010
Location: Fountain Valley, Calif.
Posts: 937
|
Re: Help me identify engine noise?
One other thing to check: if you have engine pans check to be sure that one of the mounting flanges hasn’t broken. Tom Endy alerted that to me when my A was making a funny noise, and that was the cause. He had experienced it before, usually with repro pans.
|
06-14-2019, 06:38 PM | #20 | |
Senior Member
Join Date: May 2010
Posts: 2,598
|
Re: Help me identify engine noise?
Quote:
To: Tom W, I have seen it happen 4 or 5 times on my car and customer's cars in 40,000 miles in the 60's when using A as daily driver and working at Restoration shops. I used to post about this problem and other oddball problems that I have seen in 55 years but after several "POOH POOHs" ... i quit posting about them altogether. Last edited by Benson; 08-16-2019 at 03:23 PM. |
|
|
|
Sponsored Links (Register now to hide all advertisements) |
|