|
|
|
#16
|
|||
|
|||
Quote:
To me, a manual fits with your ride.
__________________
You can't always get what you want, but if you try sometime you just might find you get what you need. |
#17
|
||||
|
||||
Quote:
I've had the engine in and out so many times I actually think it's easier than trying to wrestle the transmission out by itself. Plus I've got some other work to do that will be easier with the engine out of the car. And moving out of the prime top-down driving months it's no big deal to be without the car for a bit.
__________________
Current Stable
|
#18
|
||||
|
||||
I don't disagree, but I think I'm going to get the current tranny rebuilt and collect the parts over time for a manual conversion at some point in the future.
__________________
Current Stable
|
#19
|
||||
|
||||
Continuing to research my issue and am now wondering if the Bowden Cable, or more accurately, the control pressure cable, is the source of my problems.
This post seems really close to what I'm experiencing Quote:
Quote:
The gears all work and the transmission functions pretty well as long as you start in the 3 position and manually go to D when the rpms are where you would expect the transmission to shift on its own. Under full throttle, it won't stay in 1st more than about 2 seconds and under low throttle it shifts at about 10-15mph. It doesn't seem to be a gear problem per se, but rather a control function. My latest test was to disconnect the bowden cable at the valve cover and there was no change in operation. This seems to point to a malfunction in the shift timing mechanism in the transmission. When I initially stated that the bowden cable is working properly, I should describe what that means - when I pull on the bowden cable there is pressure on the cable and releasing the cable returns it to its "rest" position. The adjustment is such that it starts to pull almost immediately off its stop, and at full throttle is fully extended. The question on the table now is - what does the bowden cable actually control internally, and is it possible that the plunger is stuck even though there is spring pressure from inside the transmission. Thoughts?
__________________
Current Stable
|
#20
|
||||
|
||||
Hmmm. I would experiment. Adjust the cable one way, drive see how it responds, and then adjust the other way. If you go quite a bit one way, you will eventually hold gears out pretty long.
At moderate to low throttle, I do know that my 300SD's shift from 1-2 around 7 mph or so. 2-3 is usually in the teens to mid twenties. 3-4 is 25-30 or so maybe.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#21
|
||||
|
||||
I would if I could. Whether I run with the Bowden tube connected or disconnected there is no difference....which is why I was asking, in so many words, whether its possible for the Bowden tube to operate without affecting the plunger or whether whatever the plunger does to be plugged, cracked, broken or otherwise inop. And the follow on question would be whether there is an easy way to fix this without a full rebuild.
__________________
Current Stable
|
#22
|
||||
|
||||
If you post up your transmission type - I need the last two XXs from 722.4XX I should be able to get you a list of the pressures and limits.
You can then attach a (hydraulic) pressure gauge to the test ports and then have a better idea of what is happening. I'm guessing you already have a vacuum gauge to measure that side of the system too?
__________________
1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits! |
#23
|
|||
|
|||
If only the bowden cable/plunger doesn't work properly, you will take-off in second gear (instead of first gear) and there will be normal upshifts, only at the lowest possible speed. You will be in fourth gear at around 30 mph. This applies to D. In 3 the upshift will be to 3rd gear only, at lower speed, around 20 mph. If you use L (or 2), the car should start in first and stay in first until the maximum speed of the first gear, then it should shift to second gear.
Now if is something is broken, the transmission can behave unexpectantly, i.e. not as described above. Inspecting the bowden cable can be done easily, it attaches itself on the passenger side of the transmission. By turning the plastic connector, you can pull the cable from the transmission. The cable should be attached by a hook to the plunger. Clean the area before this, you don't want dirt to enter the transmission. Are you only using the VCV or did you transfer the vacuum transducer too? |
#24
|
||||
|
||||
Somewhere out there, a google search will reveal it, is a ATSG manual for the 722.3 and 722.4 transmissions that might be of some use to you. They have a nice diagnostics section that you might want to take a look at.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#25
|
||||
|
||||
Quote:
I'm using the vacuum transducer as well
__________________
Current Stable
|
#26
|
||||
|
||||
The vacuum doesnt effect shift points, merely quality. If you unplug it you'll get nice firm hard kick-in-the-pants shifts.
__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out. Check here for compatibility, diagnostics, and availability! (4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!) 82 300SD 145k 89 420SEL 210k 89 560SEL 118k 90 300SE 262k RIP 5/25/2010 90 560SEL 154k 91 300D 2.5 Turbo. 241k 93 190E 3.0 235k 93 300E 195k |
#27
|
||||
|
||||
While continuing to troubleshoot, I'm concurrently doing the research on what to have rebuilt, if I end up needing to do that.
In addition to what rebuild kits like the one below contain, what else should I consider doing while I've got the transmission in the shop? I'm thinking of at least the B-2 piston. Brake bands? or are those inspect and replace as needed.
__________________
Current Stable
|
#28
|
||||
|
||||
722.416
__________________
Current Stable
|
#29
|
||||
|
||||
Here's the information I've got. I hope it helps
How's your German? If I remember correctly it isn't a problem for you right?
__________________
1992 W201 190E 1.8 171,000 km - Daily driver 1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone 1965 Land Rover Series 2a Station Wagon CIS recovery therapy! 1961 Volvo PV544 Bare metal rat rod-ish thing I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior Don't leave that there - I'll take it to bits! |
#30
|
||||
|
||||
Quote:
__________________
All Diesel Fleet 1985 R107 300SLD TURBODIESEL 2005 E320 CDI (daily) LOTS of parts for sale! EGR block kit http://www.peachparts.com/shopforum/diesel-discussion/355250-sale-egr-delete-block-off-plate-kit.html 1985 CA emissions 617 owners- You Need This! Sanden style A/C Compressor Mounting Kit for your 616/ 617 For Sale + Install Inst. Sanden Instalation Guide (post 11): http://www.peachparts.com/shopforum/diesel-discussion/367883-sanden-retrofit-installation-guide.html |
Bookmarks |
|
|