CLUNK IN DRIVE TRAIN WHEN SHIFTING

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
Post Reply
RFJ
Posts: 12
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 »

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: 753
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 »

Throw out bearing and or clutch plate sticking on spline?
KVO
Dec. '28 AA
vonheine
Posts: 77
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 »

AA-4811 output gear loose in the pocket of the short drive shaft? The universal joint whipping and banging against its housing?
RFJ
Posts: 12
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 »

Thanks for the ideas need too dig into this a little deeper.
KimVanOrder
Posts: 753
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 »

Sure your not hallucinating?? Taking your meds regularly? :lol:
KVO
Dec. '28 AA
RFJ
Posts: 12
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 »

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: 77
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 »

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
RFJ
Posts: 12
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 »

Clunk is gone replaced intermediate shaft and transmission output gear.Both had excessive wear.Thanks Bud and Steve,I think it probably will be good for another 90 years.
Post Reply