bortaf
Posted a lot
Posts: 4,549
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Feb 10, 2014 21:02:01 GMT
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Hope my post didn't sound like i was "having a go" ? i tend to type it exactly as i think it forgetting you cant see i'm smiling not frowning as i say/type it The best thing about leaving the TC in the box is the box disengauges after a few mm so you don't have to roll the jack back as far before dropping it, i hate having heavy boxes balencing on a jack while you roll it back and forth, dropped a few in me time (boxes and clangers) Nah it's fine! I'm always happy to learn from the knowledgeable folk on here. It's my memory letting me down I think, as the manuals say to do it as you and Rich said (the right way... with TC off with the box), and I'd have followed the manual I'd have thought. Lol my memory is so bad i cant even remember if it's bad or not
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R.I.P photobucket
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Feb 10, 2014 21:32:27 GMT
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I have done a couple of boxes on w140 s classes and they aint so different from w124s The inacessible bolt at the top we got no problem on the v8 but was as you have discovered a complete pain in the sphincter on the s280 straight six and as suggested lots of 3/8 drive extention bars were required along with the patience of a saint Alot of the bellhousings are made to fit the full range of merc engines and have bulges to allow fitting of the starter to either side and one will have a blanking plate which you can remove to get at the torque converter flexplate bolts My local scrappy had a 722.5 in when i was in last week if you get stuck (carlisle ) they are a rare box so not easy to come by ,unfortunately they are also the weakest autobox merc made too
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Coo
Part of things
Posts: 30
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Cheers all for the help, I'm the other 'mechanic' lmao ! We'll have another go Wednesday night
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My local scrappy had a 722.5 in when i was in last week if you get stuck (carlisle ) they are a rare box so not easy to come by ,unfortunately they are also the weakest autobox merc made too Thanks for the tip off. It just so happens I have a coupe with a potentially weak 722.5 'box. Not sure Coo will be particularly chuffed to hear that though...
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Coo
Part of things
Posts: 30
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Feb 11, 2014 10:38:52 GMT
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MR Battles, you are nearer to Carlisle than me
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Feb 11, 2014 16:55:03 GMT
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The good news is they will take the box out for you ,the bad news is they don't post stuff . The stuff that took the time doing my w140 wasn't the actual changing the box that was curse word easy it was the exhaust bolts that hold the sections together and exhaust silencers cracking etc . When i am in the scrappies next i will check to make sue the box is still there . The number off the said box which i took when i was looking for one for myself
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Feb 12, 2014 23:01:12 GMT
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Hell's bells, it's out... By the time I got there after work, Coo already had the bolts back in and the TC bolts out and the kettle on and everything. dubmeister: Couldn't find the 722.5xx number anywhere on it, all we could see was this: It says 1 2695 3F3 Mercedes-Benz 12(something)271 24 01 Can anyone decode it? Is it even important? It's all wrapped and ready to go to be rebuilt. Huge thanks to everyone to chipped in with advice, hangovers are on me if you find yourself up here.
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Feb 12, 2014 23:07:29 GMT
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Number should be on the driver's side just above the oil pan on a long flat-ish smal embossed area Probably mucked up and hidden under dirt & oily dust...
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what he said ,i wouldnt worry about numbers too much as long as its 722.5 something if you need to put one in . if you go on benzworld.org there are links to rebuild manuals in pdf file you can download free for future reference
The number you are looking for should be just down from where that photo is pointing just above the joint for the sump
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Reading on the specialist sites the lack of reverse is often just a valve or even an electrical issue with the kickdown switch. With any luck yours is easily repairable. I'm sure you've Googled the same things as me though.
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Feb 14, 2014 14:34:43 GMT
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Reading on the specialist sites the lack of reverse is often just a valve or even an electrical issue with the kickdown switch. With any luck yours is easily repairable. I'm sure you've Googled the same things as me though. We found loads of guides to fix it, it was the removal guides that seemed to be thin on the ground. It's going to an auto specialist because, in all honesty, we know our limits. The auto specialist asked loads of questions about the box, they seem to know it well, and when I told them the symptoms they said it was definitely fixable and didn't think it would be an expensive one. They reckon it's a clutch, or a piston that moves (not sure if it moves a clutch?) needing free'd up or replaced. Shamefully, it's still in the boot of the coupe. Valentine's activities have gotten in the way of arranging a courier and whatnot.
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Feb 14, 2014 14:49:36 GMT
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Does sound like a sticky piston or broken spring in the valve body ,which you can change without taking the box out '
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Feb 14, 2014 15:18:57 GMT
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which you can change without taking the box out D'oh!
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Feb 14, 2014 15:23:35 GMT
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at least your having the box checked over and done properly rather than risking trying to repair something yourself only to find it wasn't that part at fault. or worse still damaging another section : )
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Feb 18, 2014 12:11:10 GMT
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Don't suppose anyone knows the weight of the 722.5 'box plus torque converter? Or can give an educated guess? I've had to put a job on Shipley to get it to Wolverhampton, the carrier I was going to use don't do one-off jobs anymore.
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Feb 18, 2014 15:13:44 GMT
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45 kilos ish would be my guess ,also round it up to curse word heavy when its on your chest lol
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Feb 18, 2014 22:57:17 GMT
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It's 60 to 70kg!
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Feb 19, 2014 14:23:56 GMT
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It's 60 to 70kg! So glad you said that, I was feeling like a total big jessie for moaning about it being heavy if it was only 45kg.
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Feb 19, 2014 22:24:32 GMT
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It was more the imbalance due to the converter that caught me out ,plus mine was completely dry with no fluid at 1kg a litre
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Feb 27, 2014 22:38:29 GMT
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A brief update... Penn Autos called today to report that the reverse piston and friction plates were obviously humped so will be replaced. There was a bit of a mix up when the 'box arrived there on a pallet, they were expecting the whole car so they could properly test and adjust it. Anyways, they're happy that the obvious problem matches the symptoms so I should hear from them again next week about it.
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