|
|
Joined: Oct 2013
Posts: 22
Grease Monkey
|
OP
Grease Monkey
Joined: Oct 2013
Posts: 22 |
Hi, I'm having trouble with my 3100 pickup. It's a 1952 all stock with three speed column shift. The second gear keeps popping out when I drive. The lever falls down into neutral and I have to engage it again.
Anyone got an idea on what may cause this?
Nicholas Melin, Sweden
|
|
|
|
|
Joined: Jul 2014
Posts: 50
Shade Tree Mechanic
|
|
Shade Tree Mechanic
Joined: Jul 2014
Posts: 50 |
Howdy NicholasM..........If the gear pops under power, then the bushing on 2nd in the transmission is likely worn out, on the other hand, if it falls out when you are deaccelerating (foot off the gas pedal) then the 2nd gear detent spring is likely broken or worn out :)
Happiness is the trip, not the destination.
|
|
|
|
|
Joined: May 2002
Posts: 3,578
ChatMaster - 3,000
|
|
ChatMaster - 3,000
Joined: May 2002
Posts: 3,578 |
I have had the same problems for years,just falls into neutral from second when coasting..Tranny has been re-built 2 times and I do not think it is the rod adjustment,although could be wrong
|
|
|
|
|
Joined: Apr 2008
Posts: 1,194
ChatMaster - 1,000
|
|
ChatMaster - 1,000
Joined: Apr 2008
Posts: 1,194 |
Could be an alignment issue. It has been talked about in the past. The transmission input is not square with the crankshaft. The service manual talks about checking bellhousing alignment.
|
|
|
|
|
Joined: Oct 2013
Posts: 22
Grease Monkey
|
|
OP
Grease Monkey
Joined: Oct 2013
Posts: 22 |
Hi Terry, I havent kept statistics, but if I recall it correctly it is most often under acceleration and when driving at constant speed on second for example in a roundabout.
|
|
|
|
|
Joined: Oct 2013
Posts: 22
Grease Monkey
|
|
OP
Grease Monkey
Joined: Oct 2013
Posts: 22 |
Hi Don. OK, then I have to check the alignment. Not an all easy task ;-)
|
|
|
|
|
Joined: Jul 2014
Posts: 50
Shade Tree Mechanic
|
|
Shade Tree Mechanic
Joined: Jul 2014
Posts: 50 |
Howdy Nicholas...It sounds like the bearing(bushing) is wearing on 2nd. What happens then is that the gear doesn't stay lined up under load and will kick it out of gear. It doesn't really hurt the transmission, except it won't stay gear, but as it wears it'll bust knuckles if their in the way.
Happiness is the trip, not the destination.
|
|
|
|
|
Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
|
|
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
Could be as minor as the little energizing spring on 2nd gear is weak, rear or front bearing or sync. drum......or the roller bearings where the main drive gear and main shaft mate together.
Disassembly of the transmission would be necessary to determine for sure.
Gene Schneider
|
|
|
|
|
Joined: Jul 2009
Posts: 1,478
ChatMaster - 1,000
|
|
ChatMaster - 1,000
Joined: Jul 2009
Posts: 1,478 |
Dad had 6 Chevrolet trucks in his business during the 1950's. This problem did come up. They had to pull the transmission and tear it down to see what was the cause.
|
|
|
|
|
