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Old 02-23-2014, 12:11 AM   #31
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wel lthats good, but it still doesnt help my hard shifting into first and second and grinding reverse :/ I have found out something that could be PRETTY important! I found out the that it shifts PERFECTLY when the jeep is off, it's only hard when it's running, what does that tell you guys?

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Old 02-23-2014, 12:18 AM   #32
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Flintstone it! I have no experience
With this. Very curious. When I did my clutch I think it would have fit backwards. Has writing on it telling you how it goes. ( hard to see on a luk) Sorry no answers just curious.

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Old 02-23-2014, 12:27 AM   #33
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Quote:
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Flintstone it! I have no experience
With this. Very curious. When I did my clutch I think it would have fit backwards. Has writing on it telling you how it goes. ( hard to see on a luk) Sorry no answers just curious.
the more the merrier! Im just peeved because the mechanic is either stupid to think that nothing is wrong, or is hiding his mistake.
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Old 02-23-2014, 07:49 AM   #34
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Implies bad syncros

The syncros match the engaging gear rotational speeds so the teeth can mesh without grinding

If the jeep is stopped the output is not turning and if the engine is off the input is not turning so the speeds already match

As you drive with each different gear the ratio of front to back rotation has to change

Pushing in the clutch disconnects the input from the engine but only the scncro can bring the next gears input side up or down to the proper speed to match the output connected to and controlled by your speed of travel ( rear wheels)

At least in the TJ 5 speeds neither 1st or reverse have syncros so you avoid grind by doing two things

1 only engage 1st or reverse if stopped
And
2 first put tranny in 2nd with clutch in then with clutch still in shift into 1st or reverse

Since stopped tranny output is still then shifting into 2nd you use the 2nd gear syncro to stop input rotation so now as both input and output are stopped it can be shifted to 1 or reverse without grinding
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Old 02-23-2014, 11:18 PM   #35
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Im going to try a different test tomorrow where you actually jack up the back tires and press the clutch in and see if they spin, ill keep you all updated
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Old 02-26-2014, 09:41 AM   #36
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Quote:
Originally Posted by Digger84 View Post
Implies bad syncros

The syncros match the engaging gear rotational speeds so the teeth can mesh without grinding

If the jeep is stopped the output is not turning and if the engine is off the input is not turning so the speeds already match

As you drive with each different gear the ratio of front to back rotation has to change

Pushing in the clutch disconnects the input from the engine but only the scncro can bring the next gears input side up or down to the proper speed to match the output connected to and controlled by your speed of travel ( rear wheels)

At least in the TJ 5 speeds neither 1st or reverse have syncros so you avoid grind by doing two things

1 only engage 1st or reverse if stopped
And
2 first put tranny in 2nd with clutch in then with clutch still in shift into 1st or reverse

Since stopped tranny output is still then shifting into 2nd you use the 2nd gear syncro to stop input rotation so now as both input and output are stopped it can be shifted to 1 or reverse without grinding

Well first doesnt have any synros and thats the gear im having msot of my trouble in, the shifter doesnt want to go into gear, it feels like its catching on something before it finally pops in, the same with second. I tried that shifting to second first thing, but its also hard to get into second and even after doing that its still hard to shift into first gear.
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Old 02-26-2014, 09:46 AM   #37
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Update, I changed the tranny fluid, it didnt have any chunks of metal in there (to my relief), but it did have some metal flakes that were orange on one side and well silver on the other, there was only a small amount of these flakes, but is it anything to be worried about? also the fluid was a dark brown, cloudy, and the viscosity was VERY thin, like it was almost like the consistency of water. Changing the fluid still doesnt resolve my problem, and the guys at the shop (that did my engine swap) are basically telling me that it's all in my head. I'm bringing it into an actual tranny shop tomorrow to get it diagnosed. I jsut hope they dont try to stiff me and get me to buy something I don't need.
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Old 02-26-2014, 03:58 PM   #38
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Synchros are brass and they wear out but you don't have that problem because it worked fine before the engine swap. The metal is probably synchro material but a little bit in the fluid is normal.
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Old 02-26-2014, 05:01 PM   #39
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Just FYI, the Jeep transmissions do have synchronized 1st gears. Reverse is the only gear that isn't. If 1st gear wasn't syncro'd, you would have to come to a complete stop before shifting into 1st.....like the old days....there's probably only a few of us around here can remember that far back...!
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Old 02-26-2014, 05:13 PM   #40
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Yep I got that wrong but as my first car was a TR3 I treat all manuals as no 1st syncro and only shift to first at full stop with a quick trip to 2nd first

Guess I never put much wear on that 1 st syncro

Old habits that hurt nothing just tend to stay
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Old 02-26-2014, 05:37 PM   #41
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Quote:
Originally Posted by Digger84 View Post
Yep I got that wrong but as my first car was a TR3 I treat all manuals as no 1st syncro and only shift to first at full stop with a quick trip to 2nd first

Guess I never put much wear on that 1 st syncro

Old habits that hurt nothing just tend to stay
TR3 huh? That's funny, I used to like to autocross MGB's way way back. 1969 comes to mind. I do the same and am always at a stop when I go to first, and go through second on the way there.
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Old 02-26-2014, 05:52 PM   #42
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It was. A 1958 and the first production car with front disc brakes ( not power but front disc and rear drum)
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Old 06-22-2014, 02:00 AM   #43
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What ever happened with this? My TJ 4.0 manual is having the same problem, clutch works fine for the first 10 minutes of driving, but gets progressively worse. It gets to the point there is no way to get it in reverse without grinding gears and first is impossible. Worn syncros?
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Old 06-22-2014, 07:07 AM   #44
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Do rapid repeated pumps on clutch pedal make for sufficient clutch engagement to get into first once?
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Old 07-10-2014, 05:37 PM   #45
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It does not seem to make a difference. If I hold slight pressure on the shifter when slowing down it will usually find a point it will slide into first. But if I'm stopped in neutral, it's almost impossible to get into gear.
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Old 07-10-2014, 05:46 PM   #46
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It sounds like you have air in your hydraulics. Or perhaps your slave cylinder is failing. Does the clutch pedal itself feel weird? Does it have consistent pressure throughout the travel of the pedal? Does the clutch catch very close to the floorboard? The type of thing you both described sounds like the clutch is not fully disengaging.
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Old 07-16-2014, 03:32 PM   #47
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Hey guys, I just logged back in due to my recent endeavors. To answer your question, it was the throw out bearing.

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