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EFV-8 Club Forum / General Ford Discussion / Clutch issue

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Discussion Topic: Clutch issue -- page: 1 2 3

len47merc

02-19-2017 @ 7:55 AM

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The Fort Wayne clutch installed ~7,000 miles ago in the '47 (59AB), which was buttery smooth for basically all of these miles, has developed a noticeable '1st & reverse' chatter reminiscent of the original clutch in the car. The car was just two weeks ago removed from winter storage on jack stands in the garage (last driven in a Christmas Parage before Thanksgiving) and the chatter mysteriously appeared on the first drive. No change in oil loss from the rear seal. And have not found it to get better or worse with higher or lower temps and/or humidity.

It's not so bad that I cannot live with it, but after these miles and years of smooth operation it is more than annoying & bothersome.

Thoughts on cause and possible simple correction measures (meaning short of pulling the engine again and installing a new clutch/pressure plate) are appreciated.

Steve

TomO

02-19-2017 @ 8:51 AM

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Check your front and rear motor mounts. They may have become soft from oil saturation or age. Make sure the mounts are secure.

Tom

carcrazy

02-19-2017 @ 8:57 AM

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Your rear shock absorber links may have been damaged or loosened. The rear axle has to be properly secured to the car to prevent clutch chatter with the torque tube driveline.

len47merc

02-19-2017 @ 12:27 PM

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Thanks guys. Rear shocks and links are strong and solid. Can't say the same for the front motor mounts - I could rotate the bottom bushing on both sides they were so loose, approximately 1/16" - 1/8" vertical play in both. I had checked them before the trip to Gettysburg last year and they were fine then. Weird they both were so loose now - installed new about 8,000 miles/3 years ago. Trying to figure this out - they were clean and no oil leaks anywhere to affect them, so why did they get so loose over an ~3 month storage period - ?

Rear mount was fine/tight.

Tom gets the prize today. Thanks to you both -

Steve

40cpe

02-19-2017 @ 12:30 PM

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And after you tightened the front mounts?

len47merc

02-19-2017 @ 12:56 PM

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40cpe - I think I know why you asked that question - now - but I have yet to tighten them. I actually removed the bolts to inspect them, but am questioning whether it may be normal to have that amount of play in the bottom bushings.

Top bushings were appropriately tightened. Have some research to do here and personal education.

Steve

40cpe

02-20-2017 @ 6:38 AM

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Yeah, I was wondering if tightening them solved the chatter. Please keep us posted.

ken ct.

02-20-2017 @ 7:02 AM

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Steve first time ive ever heard of this from a FW clutch. Have one in my 36 over 10 yrs now and smooth as silk as the day it went in. ???? ken ct.

TomO

02-20-2017 @ 8:12 AM

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Steve, do you have all the washers for the mounts? The lower cushion should not be free to move. I can only think of one reason that it would change and that is the lower bushing was not correctly seated when you tightened the bolt or that you are missing one of the washers.

https://www.bobdrake.com/FordItem.aspx?Item=B-6038-K

Tom

len47merc

02-20-2017 @ 8:19 AM

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Ken - I don't think it's the clutch and something else must be at play.

40cpe - I will reply here when I'm through with diagnosing and correcting any associative problems I may find, and will respond with the results of each 'correction' before proceeding to the next. Have yet to reassemble the motor mounts or drive the car.

Ok - (stupid) question of the day: Is the bottom motor mount bushing supposed to be appropriately compressed when properly installed or loose with approximately 1/16" - 1/8" inch of vertical travel?

Believe it or not, depending upon the supplier I've called with this question responses have run the gambit from 'yes', 'no', 'not sure' to 'no one's ever asked the question'.

The reason for asking is the shoulder on the shoulder bolt that holds the entire Dennis Carpenter mount together strikes home on the steel washer located above the top bushing and below the water pump mount flange. The opening in this top washer is of a smaller diameter than that of the shoulder of the mount bolt. Basically once that happens the 1 1/16" hex head of the bolt below the bottom bushing has no further available vertical travel, leaving the bottom bushing with the mentioned play. This renders the bottom bushing more of a loose bump stop than a compressed motor mount bushing. I never noticed this before but perhaps it is as 'supposed to be'?!?!?! (if so - really?)

Steve

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