Re: The Duchess Project: 1940 Super 8 Convertible Sedan
Posted by HH56 On 2014/2/2 11:20:11
Joe, you may remember my spacer was missing so I made one. Not sure it is correct since there were not many details or photos giving an accurate view or dimension. I made what I thought it would look like. Compared to yours, mine is bigger so whether yours is thin, mine is thick or each is right for the respective years is a question. Mine seems to work but the car has not been driven so it may prove to be an issue. The photo is what I have at the moment.
On your clutch, you should be able to check the wear of the clutch from the bottom. Since you have a new plate, a simple method would be to stack up a bunch of leaves from a feeler gauge to that thickness and then try and insert the stack between the flywheel and pressure plate & compare the new thickness to what is in the car. Not sure what the threshold for changing spec is but if the wear looks like the facing rivets are getting very close to metal then maybe a worthwhile project.
There are also some adjustable buttons on the pressure plate lever contact to throwout bearing which might have worn down or possibly loosened. That would cause a loss of motion or maybe incomplete release if other things were worn and tolerances are at the limit. No way to check those except to remove things and inspect. Any looseness or wear causing lost motion in the linkage could stack up and be the final straw. If the pressure plate has seen a lot of service then it too should be serviced or changed with the clutch disc.
There are numerous bulletins on shifting problems. Brian has them all organized in the 37-42 service index under transmission and overdrive. Reading thru might help shed light on a likely suspect. One in particular might be a good read. Check out the article on locking in gear in SL Vol 14 #21 and see if any of those symptoms or causes might apply.https://www.packardinfo.com/xoops/html/downloads/SC/SL-VOL14NO21.pdf
If nothing obvious pops up then a very careful examination of the entire linkage for looseness & missing or (if your car still has them), soft rubber bushings might be in order. The detent inside the trans is another source of problems so might be worth looking into.
Attach file:
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On your clutch, you should be able to check the wear of the clutch from the bottom. Since you have a new plate, a simple method would be to stack up a bunch of leaves from a feeler gauge to that thickness and then try and insert the stack between the flywheel and pressure plate & compare the new thickness to what is in the car. Not sure what the threshold for changing spec is but if the wear looks like the facing rivets are getting very close to metal then maybe a worthwhile project.
There are also some adjustable buttons on the pressure plate lever contact to throwout bearing which might have worn down or possibly loosened. That would cause a loss of motion or maybe incomplete release if other things were worn and tolerances are at the limit. No way to check those except to remove things and inspect. Any looseness or wear causing lost motion in the linkage could stack up and be the final straw. If the pressure plate has seen a lot of service then it too should be serviced or changed with the clutch disc.
There are numerous bulletins on shifting problems. Brian has them all organized in the 37-42 service index under transmission and overdrive. Reading thru might help shed light on a likely suspect. One in particular might be a good read. Check out the article on locking in gear in SL Vol 14 #21 and see if any of those symptoms or causes might apply.https://www.packardinfo.com/xoops/html/downloads/SC/SL-VOL14NO21.pdf
If nothing obvious pops up then a very careful examination of the entire linkage for looseness & missing or (if your car still has them), soft rubber bushings might be in order. The detent inside the trans is another source of problems so might be worth looking into.
Attach file:
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