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Car Forum / Mercedes-Benz Cars / September 2006300td turbo tranny probs
i just bought another td. 1984. turbo $500.00 nice car with a slipping tranny. no prob on highway, but need lots of rpm's before it 'grabs' don't know anything about tranny's, but seems like it just doesn't get 'pressure' without the r's, like a bad pump or something. once it's grabbed hold, can't even make it slip. fluid is good color. it'll even pull hard without slipping if rpm's are up arround 2k up. any hope for this trans w/o a major rebuild or replacement? hope, hope... the guy also told me the wagon tranny is different in that the 4th gear ratio is higher than that of a sedan? never heard that before.. -ol gar, back in my rv parked in front of my 'shop' ____ as mcbrue evicted me from his trailer under the bridge, down by the river.. with the new lexus hooked up to it. Website or Blog: http://coltonmotorexpress.blogspot.com/ 79 Georgie Boy 33' Motor Home [Full-timer] 77 300cd [restoration project] 81 300td turbo stick shift [my Tow Car] 81 300sd [road rrip car] 84 190e [son's driver] 84 300td turbo [bad tranny, but it was love at first sight] That is a leaking clutch pack seal... No way around... does it slip in between all gear? or it is slipping when you first accelerate? it seems to slip between gears also, but when 'hooked' into the gear, no slipage. tiger, what about the guy i bought it froms remarks that the wagon tranny is different from a sedan 300d turbo? -gary Website or Blog: http://coltonmotorexpress.blogspot.com/ 79 Georgie Boy 33' Motor Home [Full-timer] 77 300cd [restoration project] 81 300td turbo stick shift [my Tow Princess] in rv'r lingo a tow car is called a 'toad', just can't call my Mercedes a 'toad' -gar 81 300sd [road trip car] 84 190e [son's driver] -new- 84 300td turbo [bad tranny, but it was love at first sight] > That is a leaking clutch pack seal... No way around... does it slip in > between all gear? or it is slipping when you first accelerate? What is the current mileage on the car? As for the gear ratio, it would be in the rear end... not tranny. > That is a leaking clutch pack seal... No way around... does it slip > in between all gear? or it is slipping when you first accelerate? YMMV I had the same symptoms on a 300sd, and it turned out to be linkage adjustment. The slipping was all at acceleration. If I just let the car go at the minimal throttle, the "flarring" disappeared. The PO had apparently tried to adjust it and the lengths of the adjustable connecting rods were all wrong. The factory manual had all of the correct lengths in mm. the car is clock pushing 400k. who knows if it is original tranny, engine, or what. i thought the gear ratios of the auto tranny in the wagon and sedan sounded like a bit of bs. i am currently parked in sac stockton area and will check out a few p&p's for a good looking wrecked sedan. probably any turbo diesel tranny would work huh? ymmv, the linkage angle is encouraging, and this guy was a diy'r. will check out the linkage with the factory specs... sure do appreciaate this group... -gary Blog: http://coltonmotorexpress.blogspot.com/ 79 Georgie Boy 33' Motor Home [Full-timer] 77 300cd [restoration project] 81 300td turbo stick shift [my Tow Princess] in rv'r lingo a tow car is called a 'toad', just can't call my Mercedes a 'toad' -gar 81 300sd [road trip car] 84 190e [son's driver] -new2me- 84 300td turbo [bad tranny, but it was love at first sight] > > That is a leaking clutch pack seal... No way around... does it slip > > in between all gear? or it is slipping when you first accelerate? [quoted text clipped - 8 lines] > > The factory manual had all of the correct lengths in mm. After you check the linkage... I want you to unplug the vacuum hose to the tranny... plug up the hose and drive it. Shifitng will be harsh but I want to know if the tranny still slips... if yes, then you need rebuilt tranny. i checked the linkage, its ok. i pulled the vac and pluged it, no change in tranny. darn. btw reverse has always worked as it should. very positive. looks like i need a tranny huh. i think the pick n pulls are halp price end of this month. will get a 'new' one then.. about 40 bucks! it's my labor thats expensive!!! haha.. -gary Blog: http://coltonmotorexpress.blogspot.com/ 79 Georgie Boy 33' Motor Home [Full-timer] 77 300cd [restoration project] 81 300td turbo stick shift [my Tow Princess] in rv'r lingo a tow car is called a 'toad', just can't call my Mercedes a 'toad' -gar 81 300sd [road trip car] 84 190e [son's driver] -new2me- 84 300td turbo [bad tranny, but it was love at first sight] > After you check the linkage... I want you to unplug the vacuum hose to the > tranny... plug up the hose and drive it. Shifitng will be harsh but I want > to know if the tranny still slips... if yes, then you need rebuilt tranny. Be sure to shop... I just don't trust old tranny... Rebuilt tranny is around $1000. Wow... this is exactly what is wrong with my car - slipping only under acceleration (and really only from a stop). Can anyone share some hints on checking these linkages? I can do much to repair a car but have never summoned the courage to work on an automatic transmission. Are these linkages easy to find? What are the correct lengths? I appreciate any help that can be offered. > Wow... this is exactly what is wrong with my car - slipping only > under [quoted text clipped - 6 lines] > the > correct lengths? I appreciate any help that can be offered. The factory diesel shop manual has the correct lengths in millimeters. The linkages were (at least on my '83 SD) on the drivers side of the engine and connected the throttle with the injection pump, the altitude sensor and the transmission. I would not advise adjusting these without a through reading of the procedure, Additionally if the transmission fails to downshift in a timely manner (i.e kicks you in the a.s as you come to a stop) can also indicate maladjusted linkages or that little vacuum modulator on the top of the valve cover is bad. we are simply talking about the simple exterior linkage from the shifter to the tranny. i didn't actually measure mine as the tranny worked good for yeaars before this started. i simply checked it for wear at all the pivot points to see if something drastic had happened. it all looked nice and snug. i'm going looking for a 'new' used tranny this weekend. -gary Blog: http://coltonmotorexpress.blogspot.com/ 79 Georgie Boy 33' Motor Home [Full-timer] 77 300cd [restoration project] 81 300td turbo stick shift [my Tow Princess] in rv'r lingo a tow car is called a 'toad', just can't call my Mercedes a 'toad' -gar 81 300sd [road trip car] 84 190e [son's driver] -new2me- 84 300td turbo [bad tranny, but it was love at first sight] > Wow... this is exactly what is wrong with my car - slipping only under > acceleration (and really only from a stop). [quoted text clipped - 3 lines] > automatic transmission. Are these linkages easy to find? What are the > correct lengths? I appreciate any help that can be offered. |
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