Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
Posted: Sun Mar 31, 2013 7:00 pm Post subject: Clutch problem
This past Saturday we put my rebuilt engine to my 1953 M38A1 back in the Jeep. My engine rebuilder put a new clutch disc, pressure plate and pilot bushing in and I put in a new throw out bearing and support it rides on.
Problem is now the throw out bearing just barely contacts the pressure plate fingers when the clutch pedal is about an inch from the floor boards. The cable
Has about a 1/4" left to tighten up but will not get me a good pedal.
Am I missing something obvious or has someone experienced the same problem. I did read a 2011 thread where someone was adjusting the pressure plate to get the fingers out farther. I've never messed with adjusting a pressure plate in all the clutches I've done on non jeeps because they are set from the factory.
1-The throwout bearing and carrier is the same length as the old one.
2-Did you reinstall the clutch cross shaft with the long arm against the bell housing? _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
Posted: Sun Mar 31, 2013 7:50 pm Post subject:
The carrier and throw out looked the same but I did not put them side by side after I pressed it on the carrier. Now I am doubting myself. I think I can maybe check that again from the top inspection cover.
Clutch cross shaft? Is that the arm that hold the carrier? Clutch cable was in the arm and arm on the pivot point. We pulled the engine and left the tranny in the jeep so no linkage was disassembled or adjusted when we put the engine back in.
Perhaps I overlooked the correct first question I should have asked. Did the clutch release system function correctly before you worked on it?
Short arm on the left and long arm on the right.
Has the clutch release arm slipped off the fulcrum? Have you installed a longer then original clutch release cable? _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
That is a remote possibility and one that is always checked at time of installation by professional shops. To check it now requires removal. The items I have listed can be addressed without removal and that is why I am suggesting them first. _________________ Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
Posted: Mon Apr 01, 2013 5:43 am Post subject:
Because the engine did not run when I got the vehicle, the clutch pedal felt "normal" with the travel and where I could feel it making contact. All the linkages looked ok for wear and adjustment. I think at this point I have to go back to square one and pull the engine. This time it will be pictures of the suspected pressure plate while still mounted on the flywheel, pics of the throwout bearing on the fork and then remove both for bench pictures and to compare all the old parts with the new parts. On installation my motor mounts were shot so I need to order new ones and the only thing I have to unbolt is the exhaust pipe from the manifold.
I have removing the bellhousing bolts down to about 20 minutes so should have it out quickly.
Thanks for all the trouble shooting input and I will report back with more defined intel.
Joined: Feb 16, 2007 Posts: 206 Location: Gold Coast Australia
Posted: Mon Apr 08, 2013 3:02 am Post subject:
I would not be pulling the engine yet.
The cross shaft ears or levers should be close to vertical when everything is set up properly [this is not shown in the picture]. _________________ John GIBBINS
ASE Master Medium/Heavy Truck & Auto Technician 2002 USA
Licensed Motor Mechanic NSW # MVIC 49593 Current
YOU CAN'T TROUBLESHOOT WHAT YOU DON'T UNDERSTAND
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