Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-26-2013, 06:27 PM   #1
A31Woody
Senior Member
 
A31Woody's Avatar
 
Join Date: Jan 2013
Location: Sunnyvale, CA
Posts: 136
Default Noise!

Ugh! I'm trying to track down two different noises.

The first is in the engine compartment. i *think* it's coming from the distributor because when I put pressure on the dist body it temporarily went away. Although... maybe it was just a coincidence...

Here is a video of my engine running, notice the clickly clack noise that speeds up with the engine rpm. https://www.youtube.com/watch?v=FWHwUmdgtL0

The second has me seriously puzzled. When I get over 15-20 mph I can hear what sounds like a metal on metal rub. It sounds a lot like a train wheel rolling down the track.
  • It only starts up once I get to a certain speed
  • Putting the car in neutral or pressing in the clutch has no effect
  • Running the rear end on jack stands, there is no noise... (I did not run it at full speed).
  • I can rock the rear wheels back and forth (slightly) when up on jack stands.
  • My Passenger rear wheel had more play. So I took off the drum to inspect and replace. There was no major evidence of rubbing on the backing plate.
This car sat for 25+ years until I got it running in '99. Since then it hasn't driven more than 25-50 miles a year. in '99 I repacked all wheel bearings and replaced brake pads, etc.

Any idea where to look? I'm thinking wheel bearings / hubs..
A31Woody is offline   Reply With Quote
Old 01-26-2013, 06:43 PM   #2
tudoor
Member
 
Join Date: Jul 2012
Location: New Hampshire
Posts: 62
Default Re: Noise!

Have you adjusted the valves? You can definitely hear some of them. That's where I would start.
tudoor is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-26-2013, 06:47 PM   #3
Joe K
Senior Member
 
Joe K's Avatar
 
Join Date: Jul 2010
Location: Cow Hampshire
Posts: 4,173
Default Re: Noise!

Quote:
Train wheel rolling down the track...Any idea where to look? I'm thinking wheel bearings / hubs..
Concur with that thought. But front or back? The fronts are a lot smaller - and unless the car driven extensively with very fat passengers, probably the heavier loaded. Pulling the front wheels/hubs is pretty easily done. You may have a cracked roller.

Joe K
Joe K is offline   Reply With Quote
Old 01-26-2013, 06:48 PM   #4
TinCup
Senior Member
 
TinCup's Avatar
 
Join Date: May 2010
Location: OKC / Tonkawa, Ok.
Posts: 1,977
Default Re: Noise!

Wow those are some loud valves. Definitely need to adjust those. Then you should be able to narrow it down. What is that on the intake manifold where the wiper line goes?
TinCup is offline   Reply With Quote
Old 01-26-2013, 07:06 PM   #5
A31Woody
Senior Member
 
A31Woody's Avatar
 
Join Date: Jan 2013
Location: Sunnyvale, CA
Posts: 136
Default Re: Noise!

Quote:
Originally Posted by TinCup View Post
Wow those are some loud valves. Definitely need to adjust those. Then you should be able to narrow it down. What is that on the intake manifold where the wiper line goes?
Adjusting the valves sounds a bit out of my league. I might have to find someone to help.

I was wondering if anyone was going to notice that. It's just a valve I threaded into the manifold until I track down where a vacuum leak is in my wiper / tubing.
A31Woody is offline   Reply With Quote
Old 01-26-2013, 07:14 PM   #6
A31Woody
Senior Member
 
A31Woody's Avatar
 
Join Date: Jan 2013
Location: Sunnyvale, CA
Posts: 136
Default Re: Noise!

Sponsored Links (Register now to hide all advertisements)
Quote:
Originally Posted by Joe K View Post
Concur with that thought. But front or back? The fronts are a lot smaller - and unless the car driven extensively with very fat passengers, probably the heavier loaded. Pulling the front wheels/hubs is pretty easily done. You may have a cracked roller.

Joe K
I'll pull the fronts and check next. Fun times!
A31Woody is offline   Reply With Quote
Old 01-26-2013, 07:46 PM   #7
A31Woody
Senior Member
 
A31Woody's Avatar
 
Join Date: Jan 2013
Location: Sunnyvale, CA
Posts: 136
Default Re: Noise!

Just poured some MMO down the distributor port in the head and it quieted down a bunch.
A31Woody is offline   Reply With Quote
Old 01-27-2013, 11:05 AM   #8
1931 flamingo
Senior Member
 
1931 flamingo's Avatar
 
Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,389
Default Re: Noise!

Ck for wobble, looseness in the dist shaft. The bushings in the dist may be bad.
Paul in CT
1931 flamingo is offline   Reply With Quote
Old 01-27-2013, 11:27 AM   #9
bogdonj
Senior Member
 
bogdonj's Avatar
 
Join Date: Aug 2010
Location: Walkerton, Ont. Canada
Posts: 623
Default Re: Noise!

Check the Bushings on the dist shaft. sound to me like the problem
__________________
_________________________________________
1931 Ford Model A Tudor
1930 Ford Model A Deluxe Roadster
1930 Ford Original Rolling Chassis- Restoring
bogdonj is offline   Reply With Quote
Old 01-27-2013, 11:32 AM   #10
Mitch//pa
BANNED
 
Join Date: May 2010
Location: Bucks County, PA
Posts: 11,454
Default Re: Noise!

noise problem #2
maybe noisy speedometer cable....
Mitch//pa is offline   Reply With Quote
Old 03-08-2013, 11:24 AM   #11
A31Woody
Senior Member
 
A31Woody's Avatar
 
Join Date: Jan 2013
Location: Sunnyvale, CA
Posts: 136
Default Re: Noise!

UPDATE on my search for the 15-20mph noise. Popped off the drivers front hub last night and one of the rollers on the inner (larger) bearing was broken. Hoping it's going to be as simple as replacing the bearings and races in that hub.
A31Woody is offline   Reply With Quote
Old 03-08-2013, 02:45 PM   #12
hardtimes
Senior Member
 
hardtimes's Avatar
 
Join Date: May 2010
Location: South California
Posts: 6,188
Default Re: Noise!

Quote:
Originally Posted by A31Woody View Post
UPDATE on my search for the 15-20mph noise. Popped off the drivers front hub last night and one of the rollers on the inner (larger) bearing was broken. Hoping it's going to be as simple as replacing the bearings and races in that hub.
Well, it depends on whether you 'caught' it soon enough! If you did, then it should be an easy swap for new. However, I'd be concerned as to ...WHY it happened, i.e.- cheap defective replacement part; not lubed proberly; not adjusted properly..WORN HUB, etc. I'd make sure that I checked the other side also. Q: how was the adjustment situation...when you took the BO side off? Too tight/too loose adjustment is bad business,eh! No regular PM is asking for it

Last edited by hardtimes; 03-08-2013 at 02:51 PM. Reason: ......
hardtimes is offline   Reply With Quote
Old 03-08-2013, 03:00 PM   #13
Tom Endy
Senior Member
 
Tom Endy's Avatar
 
Join Date: May 2010
Location: Southern California
Posts: 3,122
Default Re: Noise!

Noise coming from the distributor:

In addition to a worn out shaft and bushings, another cause could be the tip of the rotor striking one or more of the four electrical posts. Upper repo distributor caps are notorious for being of poor quality in the area of the four posts. There should be a gap between the tip of the rotor and each post between .025 and .035 (depending on personal choice). Repo caps should always be fitted to the distributor by filing the post or the tip of the rotor.

Tom Endy
Tom Endy is offline   Reply With Quote
Old 03-08-2013, 06:33 PM   #14
H. L. Chauvin
Senior Member
 
Join Date: May 2010
Posts: 4,179
Default Re: Noise!

Your description of your second noise at 15 - 20 mph sounds somewhat familiar to what I have.

Have a 1930 differential that for years, at about 23 to 26 mph it sounds like a boat propeller crossing over a mound of oyster shells, (i.e., encountering a submerged oyster bed or oyster reef); however, from 22 mph down, & from 26 mph upwards, it is quiet.

Never had a speedometer in this car but I knew when I was going about 25 mph.

This will be my next differential re-build project.
H. L. Chauvin is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 03:31 AM.