CLUNK IN DRIVE TRAIN WHEN SHIFTING

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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RFJ
Posts: 7
Joined: October 28th, 2019, 5:07 am
Body Type: 82B EXPREESS BED 131
Model Year: 1930

CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by RFJ » November 3rd, 2019, 6:12 am

Hi I have a 1930 82b express bed truck ,everything has been rebuilt. I recently start using it daily and now have about 200 miles on truck. my trouble is a loud clunk when disengaging clutch. It sounds like something is hanging up then releasing. Any help would be greatly appreciated.
thanks

KimVanOrder
Posts: 593
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by KimVanOrder » November 3rd, 2019, 3:41 pm

Throw out bearing and or clutch plate sticking on spline?
KVO
Dec. '28 AA

vonheine
Posts: 76
Joined: September 30th, 2009, 8:02 pm
Body Type: none
Model Year: 1930
Location: Massachusetts

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by vonheine » November 3rd, 2019, 6:00 pm

AA-4811 output gear loose in the pocket of the short drive shaft? The universal joint whipping and banging against its housing?

RFJ
Posts: 7
Joined: October 28th, 2019, 5:07 am
Body Type: 82B EXPREESS BED 131
Model Year: 1930

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by RFJ » November 4th, 2019, 2:28 pm

Thanks for the ideas need too dig into this a little deeper.

KimVanOrder
Posts: 593
Joined: August 11th, 2013, 4:25 pm
Body Type: 82-A Platform
Model Year: 1928
Location: Hamilton, Mich.

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by KimVanOrder » November 4th, 2019, 3:13 pm

Sure your not hallucinating?? Taking your meds regularly? :lol:
KVO
Dec. '28 AA

RFJ
Posts: 7
Joined: October 28th, 2019, 5:07 am
Body Type: 82B EXPREESS BED 131
Model Year: 1930

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by RFJ » November 7th, 2019, 4:33 am

My first thought was clutch sticking, but it will make the same clunk after slowing down when you start to accelerate. Seems more like end play .

vonheine
Posts: 76
Joined: September 30th, 2009, 8:02 pm
Body Type: none
Model Year: 1930
Location: Massachusetts

Re: CLUNK IN DRIVE TRAIN WHEN SHIFTING

Post by vonheine » November 7th, 2019, 9:55 am

I agree. The sound is probably related to backlash. When the torque is gone it’s quiet , when the torque is back it clunks when the backlash is taken up

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