My 24 TT runs well at half throttle,when advancing the throttle the engine reves and
maintains present speed. New owner fixer enjoyer..
Most likely you need to adjust the clutch fingers.
There is an online Service Manual there >>> http://mtfci2002.readyhosting.com/manuals/Model_T_Service_Manual/mtsm.html
Go first to page 83 and then to 246.......
Bear in mind the index numbers refer to paragraphs, not pages.
Hi, Larry, and welcome to the Model T family. As Craig says, you need to open the top of the transmission and adjust the clutch. One of the first lessons you'll learn is never to drop anything into the transmission, because there is no lower cover to take off and get things out. So stuff rags around the open sides when you do anything in the tranny to catch things like cotter pins, screws, nuts, and tools.
I see you're in Kiefer. I'm originally from Hominy, just north of you in Osage County. I've now been in Fayetteville, AR for many years. If you get over this way, give me a holler and we'll kick some T tires.
Thanks Craig,Mike will adjust.
I retrived half washer with a magnet and half thru the drain. GREMLINS
Larry
Larry, to verify, or facilitate, any possible adjustment I cut a piece of aluminum to 13/16" wide and long enough to reach the clutch collar.
For your sake I hope there is something to adjust.
My clutch was slipping in my 26, turned out to be the clutch spring support had worn through the pin and the spring had come to rest on the 4th bearing cap.
Larry, before you pull the cotter pins on those screws for the clutch fingers tie some dental floss or thin wire or something through the loops on them. Then if you've got the rags tucked in on the sides and the floss through the cotter pins you're saving yourself from a lot of trouble if you drop one.
Thanks, I will adjust one day next week.
I've noticed that everyone is telling Larry that the first thing he has to do is to open up his transmission and adjust the internal clutches, but there are a couple issues that should be checked before "assuming" that the clutches need adjustment...
First: Check the free play of the low speed pedal. If there is no free-play in the linkage between the low speed pedal and the clutch lever, then the clutch lever is not being fully released and you have found your problem.
Second: Check your hand brake lever and make sure it is all the way forward when you are driving and that the clutch lever screw is not still contacting the cam on the hand brake lever shaft. I know it seems "obvious" to most long-time T hobbyists, but I have seen this issue on a couple cars with poorly made floorboards and other issues that keep the handbrake lever from moving far enough forward to allow the clutch lever to be fully released.
Adam -- That's good advice. I reckon some of us were jumping the gun a little bit. It's better to eliminate the simpler possibilities first.