Help!! Let out clutch, POP, no go.... - Defender Source
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  #1  
Old May 3rd, 2012, 09:10 PM
wantone
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Rick Thompson
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Help!! Let out clutch, POP, no go....

94st w/r380 tranny. Been running like a top. 140k miles. Pulled out of neighborhood from a stand still in first, when let out clutch heard a pop, and then no go. No warning signs etc.. Was not rodding it when i let out clutch either. Clutch feels good & when i let it out i head a noise & i depress it noise stops. It is a faint whining/ grinding moise. I took off t cas plate on the underside, no shavings etc. Do you all think the input shaft splines stripped? If so, i guess i have to pull the tranny?.... I did a thread search & thats what i came up with. Gonna take pto cover off next. Thanks guys
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  #2  
Old May 3rd, 2012, 09:31 PM
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Does it move with the centre diff locked?
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Old May 3rd, 2012, 10:41 PM
wantone
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Yep, pressure from the clutch as usual. Nope. Doesnt move w/ diff locked in hi or low etc. what ia wierd is there was now warning such as knocking, whining etc & i dont drive it real hard & am careful to shift smooth to avoid banging the drivetrain due to all the normal slop in it. Drive shafts r all good
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Old May 3rd, 2012, 10:55 PM
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Any chance ot could be the shift linkage?
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  #5  
Old May 3rd, 2012, 11:32 PM
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I think you'll find sadness within the gearbox. Good news if it is indeed that the main shaft let go is that John has rebuilt R380s ready to ship out for about what it would cost you to have the thing repaired. Roughly 1500 on your doorstep.
Ashcroft transmission
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Old May 4th, 2012, 09:34 AM
wantone
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wow, about 1500 to the door from the uk and from a reputable source?! looks like thats the route to go if it all is toast, which what i fear.....

what if the splines on the t-case are gone as well? what does it take to fix that?
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Old May 4th, 2012, 10:54 AM
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I have a couple of rebuilt gearboxes if you can arrange shipping from spain? Only have 2 transfer boxes that are ready to go though.
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  #8  
Old May 4th, 2012, 12:51 PM
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Jeff you wish you had an oiler plate that's as bad ass as MY oiler plate. Mine has hypnotic swirly whirly curls....
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Old May 4th, 2012, 01:45 PM
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To drop the gearbox, is it easier to take the t case off first, then the gearbox, of in one whole piece? This will b a one man job.... But i got a shop w/ tools etc
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Old May 4th, 2012, 05:48 PM
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Dood you just couldn't handle it. Your head would explode.
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1966 109 5 door wagon 300Tdi "spermaceti fueled"
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1968 2A 88

All my troubles are Rover
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Old May 4th, 2012, 06:54 PM
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Ok drop it as one unit. Probably use a cherry picker to just lower it out? Any other tricks or things I need to know to pull it out & put it back in?
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Old May 4th, 2012, 07:11 PM
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Jeff, I know your type. You'll show yours to anyone who asks.
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Old May 5th, 2012, 05:35 PM
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Good idea on the hi lift tip Jeff, thanks! I put headers on recently so exhaust will b easy. Hope the rest does. When I put it back in, will lining up the input to the clutch require any tool?
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Old May 8th, 2012, 12:00 AM
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Well the splines on the output shaft & t case are stripped.... So i guess it is a call to ashcroft in the morning. I need the gearbox & cross drilled gear forvthe t case. Anything else?
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Old May 8th, 2012, 12:16 AM
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New clutch, new t-case input seal, new transmission mounts new slave cylinder, new flex line, and hard line and big nut (while you are in there type stuff).

If the transmission is otherwise fine, I would just replace the mainshaft as I am a cheap bastard.
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Old May 8th, 2012, 01:28 AM
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Where can u get the mainshaft? I might give it a shot. Or, should i stick an auto in it?
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  #17  
Old May 8th, 2012, 11:10 AM
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Quote:
Originally Posted by evilfij View Post
If the transmission is otherwise fine, I would just replace the mainshaft as I am a cheap bastard.
I'm not sure if you understand that replacing the mainshaft requires a COMPLETE disassembly of the gearbox...
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Old May 8th, 2012, 11:24 AM
wantone
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i understand i studied the pdf of the gearbox overhaul on this forum. is replacing the mainshaft pretty technical to re-place? meaning is it fairly difficult/easy to dissasemble and reassemble for someone fairly mechanically inclined? does it require a lot of special tools and adjustment to set necessary gaps/spacings/tolerances like in a differential?

thanks so much, i am considering giving it a go to re build it my self. i would really hate to have to order one from the uk, send back the core etc., if all i need is a new mainshaft, know what i mean?
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Old May 8th, 2012, 12:53 PM
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Quote:
Originally Posted by Red90 View Post
I'm not sure if you understand that replacing the mainshaft requires a COMPLETE disassembly of the gearbox...
I have redone an R380.

It is not terrible other than the big nut. No worse than any other manual transmission.

An auto would be cheaper than a rebuilt manual (I bet you can get all the parts other than the proper center consol for a few hundred).
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  #20  
Old May 8th, 2012, 12:56 PM
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i saw you posted about the big nut, that some standard size (what size again?) and impact gun with a rag in the gears works. other than that is it pretty much pressing bearings and gears on and using a gear puller to get them off?

so i need a main shaft and seals assuming bearings are all good.


thanks, i really appreciate the help! i have done pretty much everything on a vehicle except a tranny, so i think i am gonna give it a go


so i need to do some searching for the auto conversion. you use a tranny from a disco I dont you? and dont i need to fab a few mounts for it?
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