Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: Dingo on October 02, 2005, 11:22:56 AM

Title: Auto box problemo
Post by: Dingo on October 02, 2005, 11:22:56 AM

Now I know absolutly nothing about autos or torque converters, so use layman terms in your replies.
 My TH400 on the CJ7 has started screeching. It drove back from CF fine, in fact I ragged her down Shrewsbury bypass out acclerating folk just to see the look on their faces, fun. Parked her up for 2 weeks, got her out washed her, then went for a spin the next day. It's fine when I put it into gear but when I get up to about 25-30 it starts screeching and it sounds just like when your fan belt is slipping.
 Have I got water in there? Does it need an oil change? Have I fuked it?
Help.

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Post by: Anonymous on October 02, 2005, 12:12:28 PM

I had this with an auto box once ...........sounds like the belts slipping, I would change the oil & clean the filter as you may have water in it ......am sure someone will jump on me if I am wrong......

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Post by: Anonymous on October 02, 2005, 06:54:46 PM

sounds like the torque convertor is slipping, firt thing is swap out the oil, sounds like it could be contaminated

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Post by: Dingo on October 02, 2005, 07:32:41 PM

Is the oil in the torque converter the same oil as in the box, ie if I drain the box does it also empty the converter? Can't see a drain plug, looks like I'll have to loosen the cover. Cheers.

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Post by: Bubba on October 02, 2005, 07:44:48 PM

you cant drain the converter just drain the box by taking the pan off and change the filter  dont wory if the old filter is coated with fur tis nomal big flecks of metal aint good have you made sure the leval is right and does the fluid smell scorched o and when did you last change the fluid o by the way the converter will suck the new fluid up when it is changed

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Post by: Anonymous on October 02, 2005, 08:23:29 PM

oh and you may need to check the level with the engine running and the box out of drive

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Post by: Bubba on October 02, 2005, 08:26:45 PM

that is the norm with all autos

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Post by: Anonymous on October 02, 2005, 08:27:37 PM

tell that to the garage that fooked the auto in my first XJ  

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Post by: Dingo on October 03, 2005, 03:11:47 AM

Thanks, I didn't know.

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Post by: BlueJay on October 04, 2005, 09:31:28 AM

Quote from: "offroading.net"

oh and you may need to check the level with the engine running and the box out of drive

I would imagine that it is rather difficult to check the fluid level when it is in drive

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Post by: Anonymous on October 04, 2005, 10:05:45 AM

When you having a go at it Dingo?

Good Luck

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Post by: chrisjones on October 04, 2005, 10:07:41 AM

I du'no - little sling, hang under the truck and get someone to drive it around the block! :lol:

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Post by: Mick O on October 04, 2005, 10:46:12 AM

Thats been done #-o

Maybe not a good idea then, unless you want to be up for next years Darwin award 8)  

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Post by: chrisjones on October 04, 2005, 12:01:47 PM

We could always strap Edna under there!

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Post by: Anonymous on October 04, 2005, 12:24:07 PM

Just use KD's bumper as a skid plate and slid along underneath.... I bet heat would take a while to travel through THAT much metal :)

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Post by: trent on October 04, 2005, 02:07:54 PM

Look what happened to Brian Harvey when he tried it

Title: auto box problemo
Post by: ROOTER on October 04, 2005, 10:22:44 PM

Dingo
hope things are moving on with your auto box.some converters did have a drain plug on em,take the inspection cover off underneath and turn the motor by hand and it should come into view if it has one.
If there's a need , I have got a th400 and converter out of a 79 cherokee, and its a gud un ! just let me know.

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Post by: Dingo on October 05, 2005, 12:27:13 AM

Thanks for all the replies. Haven't got round to draining the box yet, too fecking busy, hopefully this weekend.
 Thanks for the offer Rooter, did you have that on ebay a while back? Seem to remember one on there from Ormskirk. I get up round your area quite frequently, so it may be a possibility, see what I find first.

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Post by: Bubba on October 05, 2005, 05:57:04 AM

if you need one closer to home i got one in the shed to but also no a good rebuilder aswell

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Post by: Dingo on October 24, 2005, 11:25:30 PM

Update, still haven't got round to this yet. I crawled under a week ago and it still had a good coat of Ribbo mud from CF, so I thinks take it down the yard and wash it off first. Turns key, nothing. Flat battery maybe, fits booster starter thing and nothing. So I'm fed up and lock the garage and go home.
 This weekend I've taken the starter off (bloody big lump), cleaned it up, stuck some jumper cables on it and it shot across the garage floor. So thats as far as I've got, it's going back on tomorrow night and it'd better start.
 All being well I'll clean the gearbox sump and drain the oil this weekend, where's the best place to get a new seal and filter kit for the th400? 4WD maybe or is there somewhere in the UK.

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Post by: Anonymous on October 25, 2005, 12:49:10 AM

Lighthouse???????

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Post by: Dingo on October 25, 2005, 11:02:28 PM

Right getting knarked now, put the starter back on tonight and still nothing, I'm just getting a loud clunk which sounds like the gear thingy coming out of the starter to engage the flywheel, but then it's not turning over. Any suggestions, not good with electrics.

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Post by: Bubba on October 26, 2005, 05:49:57 AM

remove the starter cable from the remote selonoid and clean the conectiones it the one on the iner wing with all the wires on it take them all of one at a time and clean them

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Post by: Dingo on October 26, 2005, 09:49:34 AM

Cheers Bubba I'll try that this evening, this is turning into tales from your workshop with difference, allsorts going wrong and I don't know what the feck I'm doing.
 Just got the jeepers Bible by Moses Ludel, makes good reading even if I don't understand it all.

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Post by: Bubba on October 26, 2005, 10:06:44 AM

very good book but better book is the jeep bible by granvile king very very very good if i was gonna writ me a book  itd be just like it

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Post by: Dingo on October 26, 2005, 10:34:04 PM

This is getting worse, cleaned solenoid connections and still no difference. It's the solenoid clicking loudly not the starter. Thinking I might have an earthing problem I started poking about and found some wires that were hot ,around the mass of wires that go through the bulkhead to the fuse box. It's starting to look like I might have get an auto sparky out. I'll have another poke around tomorrow night and see what I can find.

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Post by: Anonymous on October 26, 2005, 10:46:21 PM

if you got power at the solenoid & thats working but you got no starter, could be one of two things...either there is a break in the cable between starter & solenoid or there aint enough juice coming from battery...is the battery fully charged?...are the battery terminals clean & making a good connection?

I had the same problem with my CJ & it turned out to be a semi-flat battery, had enough juice to flick the solenoid but not enough to turn her over......pretty stupid, but we tend to overlook the obvious!

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Post by: Dingo on October 27, 2005, 11:28:25 PM

battery was first thing I thought of, tried a booster/starter on it and no different. Because of where it's parked I can't get near it with the xj and leads.
 Had a meter on the solinoid whilst my bro held the key on, I've got power from battery, ing and coil wires but nothing on the starter wire/terminal, could the solinoid be FUBAR?

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Post by: Bubba on October 28, 2005, 06:08:28 AM

maybe put ya jump leade on the pos on the battery turn ignition on touch the other end of lead on the terminal post if turns over and starts you sussed the selonoid

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Post by: Dingo on October 28, 2005, 12:44:12 PM

doh.Why didn't I think of that? try it tonight.

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Post by: Dingo on November 14, 2005, 10:10:23 PM

Thanks for all the help, Bubba's right the remote solinoid was the culprit. Shorted it and the engine turned, put another solinoid on off my mates MK1 escort, and she fired straight up. Missed the sound of that V8 lump.
 Anyway the torque converter is screaming like a bitch now, so I'd better get on with that. Bugger MOT's run out aswell.