A friend of mine (really) sent me this short video of an issue he's having with his 1931 Model A sedan. V8 type pressure plate. I don't know what kind of clutch disc he has. Mitch has the video and says he'll post it here for me. What's going on with this car?
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Well, if you slow it down, you can tell that it is not a throw-out bearing noise because the bearing is running a long time before the noise is heard. What I would do is warm up the car a bit, just so it is not stone cold, pull the starter and hand crank start it and listen again with the starter out. What it sounds like to me is the ring gear or the flywheel is rubbing on the starter bolt. But that can be determined by setting up a mag base and dial indicator against the flywheel/ring gear and checking for run out.
Slow it down to .5 and listen, you can barely hear the rubbing before the pedal is depressed, at least the engine noise is parallel to the sound when depressed.Last edited by DaWizard; 08-09-2017, 10:22 PM. -
I agree with Wiz's assessment about the ring gear walking off and or starter bolts. Another thing he might check is the crankshaft end play, pushing the clutch in can move the flywheel / ring gear closer to the starter bolts. This noise should be relatively easy to find with a little investigation and removal of parts. Take a good look at the V-8 pressure plate fingers, i have had the pivot pins walk out as on certain brands they were held in by tiny snap rings a poor design.
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Bruce is this a brand new install? was anything changed or worked on? a little back history may helpComment
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This engine with clutch, flywheel, PP and clutch disk has been in the car for about 8 years. Never a problem like this. Nothing has been changed since the install of a rebuilt engine etc. 8 years ago. I will see the owner today but not the car.Originally posted by Mitch View PostComment
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Bruce any update on the noise?Comment
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No update yet. Took the starter off and the noise persists. It's not a starter bolt hitting the flywheel/ring gear.Comment
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So the problem has been solved. The ring gear had worked it's way forward on the flywheel. A few solid taps with a good sized hammer fixed the issue and got the ring gear back where it belongs. The car had a 6 volt starter and a 12 volt system. Starter was changed to a 12 volt unit some time ago.Comment
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Hey glad it is fixed, and thanks for the update!Comment
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Had a similar noise with V8 clutch/pp on new build; it turned out to be one of the 3 fingers was out of adjustment as well as the 1" freeplay wasn't to spec causing the throwout bearing to chirp. Thanks Bruce for posting this, something to watch out for.Comment
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Last week I posted about the difficulties in getting Hugh’s coupe running. One of the problems was all of a sudden the starter would spin but not engage. I removed the starter to find the further most bolt and special retainer washer missing from the bendix. I should note the bolt was not broken off it looked like it had unthreaded but how if the locking tab was in place! Using a flashlight, a magnet...04-18-2021, 07:51 AM -
TRANSMISSION NOISE
FORD MODEL A
Symptom: Noise from transmission, effected by clutch pedal movement.
Clutch Throw Out Bearing Noise: high-pitched rubbing noise with only slight
pressure on clutch.
Pilot Bearing Noise: high-pitched noise when clutch is fully depressed.
Noise When Clutch Pedal Depressed:
-throw out bearing,...02-11-2018, 08:38 AM -
Original thread link
TRANSMISSION NOISE
FORD MODEL A
Symptom: Noise from transmission, effected by clutch pedal movement.
Clutch Throw Out Bearing Noise: high-pitched rubbing noise with only slight
pressure on clutch.
Pilot Bearing Noise: high-pitched noise when clutch is fully depressed.
Noise When Clutch...02-11-2018, 11:34 AM -
Over the years I have had two throwout bearings go on me, one with bad consequences because I tried to drive home rather than call AAA. This Saturday I will be helping an acquaintance diagnosis what he believes is a transmission noise that is getting worse. Below is a diagnostic/remedy process I now follow. Feel free to criticize, amend, etc.:
TRANSMISSION NOISE
FORD MODEL A...02-07-2018, 06:56 PM -
Just received call from Model A Fellow says when clutch is pushed in Loud noise like machine gun? Any Ideas?? also daily driver about 5000 miles per year.07-13-2020, 05:27 PM -
My clutch has been giving intermittant problems for a while now, and I suspect one of the little springs in the disk is loose. Sometimes when I disengage the clutch, there is a squealing noise, and if I let up the pedal and try again it is quiet. Yesterday it did that at the gas station, and while it was squealing, I could not get the transmission into gear. So in the next day or so I will pull...01-19-2021, 09:51 AM -
After 60 miles of shake-down drives, I am hearing clutch disc chatter with the trans. in nuetral. When I press the clutch pedal in to the point where the slack is taken up the chatter stops. After driving the car for a few miles the chatter is gone (maybe the grease on the new throw-our bearing thins after warming)?
1. All parts are new
2. Clutch disc was centered
3. Pressure plate...08-26-2018, 06:08 PM -
The inside of the flywheel is the most critical part. If the internal splines are worn to where they have divots from the teeth on the clutch pack rattleing, the clutch will not release well. Also, that flywheel looks from the photo to be the early flywheel with out the releaf for the starter drive, so an early starter would be necessary. The transmission gears look good, so that is a plus, and the...03-01-2018, 06:23 AM
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Yesterday, we did a drive of a bit over 120 miles and for the last few before we reached home, the clutch decided to not disengage fully. Gear changes were "crunchy" and engaging first gear at the lights, not so good. I have about 1 1/2" free play in the pedal. The lower lever is the fabricated type and in sound condition (original style replacements are not available for RHD cars)...12-12-2020, 05:35 PM -
I have the chance to buy this setup and it would have been originally in my truck. Question is, would this be as reliable of a clutch as the newer single disc ? Thanks, PatYou do not have permission to view this gallery.
This gallery has 3 photos.02-28-2018, 09:37 PM
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