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Author Topic: post mortem on tunnies tranny  (Read 1316 times)

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sassanach

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post mortem on tunnies tranny
« on: 24 December 2007, 13:53:37 »

nothing wrong with it......................it was the TORQUE CONVERTER bent as a nine bob note
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Marks DTM Calib

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Re: post mortem on tunnies tranny
« Reply #1 on: 24 December 2007, 13:58:20 »

Quote
nothing wrong with it......................it was the TORQUE CONVERTER bent as a nine bob note

So some heavy handed bugger has damaged it during transmission fitting then......
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sassanach

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Re: post mortem on tunnies tranny
« Reply #2 on: 24 December 2007, 14:02:09 »

got it in one the tc was not engaged with the pump properly when it was fitted and enough force was applied to bend it.there are  corresponding marks on the pump face as i pointed out to tunnie at the time and a wear groove on the tc half way around the spigot.luckily i had a spare hanging around at the time
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sassanach

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Re: post mortem on tunnies tranny
« Reply #3 on: 24 December 2007, 14:04:10 »

all ive got to do now is put the tranny back together and ive got a good un
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Marks DTM Calib

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Re: post mortem on tunnies tranny
« Reply #4 on: 24 December 2007, 14:12:52 »

Hmmm....I know some try take a short cut by bolting the torque converter to the flex plate (6 bolts which are fitted one at a time through an opening for those not in the know) and then hope that it engages with the pump when the box is offered up....I guess this is the consiquence of taking that approach.

Its easy to imagine the force that the bellhousing bolts could apply.

Is the flex plate ok though?

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tunnie

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Re: post mortem on tunnies tranny
« Reply #5 on: 24 December 2007, 14:15:05 »

thanks again for helping me out, i got the problem sorted, and you got a working AR35  :y
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sassanach

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Re: post mortem on tunnies tranny
« Reply #6 on: 24 December 2007, 14:20:41 »

nothing obvious was noted, i always have a gander as you can see a lot of potential issues not visible when the box is attached. the irony is i only changed the tc as i was concerned that the wear groove would cause the seal to leak so i cured the problem by default.
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TheBoy

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Re: post mortem on tunnies tranny
« Reply #7 on: 24 December 2007, 14:58:31 »

Why would bolting to flexplate before fitting box save time?
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Marks DTM Calib

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Re: post mortem on tunnies tranny
« Reply #8 on: 24 December 2007, 15:05:43 »

Quote
Why would bolting to flexplate before fitting box save time?

Because, the 6 bolts are harder to fit once the bell housing is.....and if swapping the boxes it means you can realy cut corners and not bother to remove the torque converter at all.
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TheBoy

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Re: post mortem on tunnies tranny
« Reply #9 on: 24 December 2007, 15:09:00 »

Quote
Quote
Why would bolting to flexplate before fitting box save time?

Because, the 6 bolts are harder to fit once the bell housing is.....and if swapping the boxes it means you can realy cut corners and not bother to remove the torque converter at all.
Admittedly, tractors only have 3 bolts, but even so, its hardly any hassle....   ...and I've had my fair share of doing this due to engine changes....
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sassanach

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Re: post mortem on tunnies tranny
« Reply #10 on: 24 December 2007, 15:12:42 »

try doing it on a 4 pot its a complete b**tard,when you take the tc bolts out they can fall down behind the flex plate. not a problem on removal but a right royal pain if it happens on re-assembly
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JamesV6CDX

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Re: post mortem on tunnies tranny
« Reply #11 on: 24 December 2007, 17:24:47 »

I've done this job a few times - and I find it much easier to place the TC in the box, and then offer it up, bolting it to the flex plate when the bellhousing is offered up. Obviously you line up the TC and the plate so an initial bolt hole lines up, and from there it's fine and dandy - as long as you don't drop a bolt. If you do - then you could be popping the box back again!
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