Ryan.G Posted June 26, 2012 Share Posted June 26, 2012 Gents, after reading the thread and how the owner has described it failed it does not sound like an over torque issue. Have done around 20 autos over 500ftlb on Syvecs which have been spot on. Sounds like line pressure has slowly dropped which could be a blocked filter, Faulty solenoid, faulty sensor or seal blown. Ryan Quote Link to comment Share on other sites More sharing options...
SteveR Posted June 26, 2012 Share Posted June 26, 2012 If the autobox is the same as the one on a Lexus GS300, then I have a used one off the car and ready to be collected. No issues whatsoever before it was taken off, drove fine in all gears inc reverse. Check the Trans code on the VIN plate. It's got a flange tail I'll check the VIN though, as Nic suggested - tomorrow. If it'll get the OP by for a few weeks whilst he saves up for a built box... My Lexus' VIN ends with "...A4343E"; does that fully identify the exact gearbox? Quote Link to comment Share on other sites More sharing options...
Geo Posted June 26, 2012 Share Posted June 26, 2012 I think before buying or doing anything drastic, pull the logs and let Ryan look at them, it could be something simple??? Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 I think before buying or doing anything drastic, pull the logs and let Ryan look at them, it could be something simple??? I will email him now... Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 My Lexus' VIN ends with "...A4343E"; does that fully identify the exact gearbox? Can anyone confirm these gearbox`s are the same before I buy it and do the swap. Thanks Quote Link to comment Share on other sites More sharing options...
Digsy Posted June 26, 2012 Share Posted June 26, 2012 Have you actually checked anything on the box apart from the colour of the fluid? I can't even see a post where you say you have checked the level? Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 Have you actually checked anything on the box apart from the colour of the fluid? I can't even see a post where you say you have checked the level? Yes the level and colour is ok. Its just blocking up after 20 seconds of running. I need to unblock it but this means something has to break or wear to block up in the first place. Quote Link to comment Share on other sites More sharing options...
Digsy Posted June 26, 2012 Share Posted June 26, 2012 And the filter in the sump is clear? Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 And the filter in the sump is clear? Ive not had it apart yet I was gunno do this today. It definitly dont sound clear tho as its blocking up. Quote Link to comment Share on other sites More sharing options...
Jamesy Posted June 26, 2012 Share Posted June 26, 2012 (edited) Sounds like Your box is fried dude unfortunately. Stock auto and single turbos is never a good combo you're always on borrowed time. Sounds like you may have melted the clutches in the box. Have you been doing a lot of brake boosting from stand still? My BL box let go this time last year on the strip at santa pod ... After that i could drive for about half a minute slowly then all gears would disappear. My advice would be go for a Titan built box if you want to keep it as an auto. Th400 is way too extreme unless its a drag only car - its only got 3 gears and would be awful on the street. Plus they need a lot of supporting mods to fit. If you go with a built auto id suggest getting 2 SRD autobox coolers fitted. I had them on my auto running 825bhp and 700ftlb and kept the temps down very well. Edited June 26, 2012 by Jamesy (see edit history) Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 Your box is fried dude unfortunately. Stock auto and single turbos is never a good combo you're always on borrowed time. Sounds like you may have melted the clutches in the box. Have you been doing a lot of brake boosting from stand still? My BL box let go this time last year on the strip at santa pod ... After that i could drive for about half a minute slowly then all gears would disappear. My advice would be go for a Titan built box if you want to keep it as an auto. Th400 is way too extreme unless its a drag only car - its only got 3 gears and would be awful on the street. Plus they need a lot of supporting mods to fit. Yeah exactly what I thought. I thought the TH400 would be a good idea as I can get these for nothing and I thought it was just a case of cutting the bellhousing off and adapting the a343 one on to it. I dont mind if its an auto or manual but I think a Titan box will still be the cheaper option than to go manual. For now im not going to bother cleaning the filter out as somethings definitly broke to block it up in the first place so im going to look out for a cheap low mileage auto and just run it at low boost until I can afford a built one. As for brake boosting if thats what its called I tried it once to see if it made a difference in launch but that was the day before and it didnt seem too bother it, but you never know... Do you know if steveR`s lexus box will fit as a replacement? Quote Link to comment Share on other sites More sharing options...
David P Posted June 26, 2012 Share Posted June 26, 2012 If it is an A340E with a J1 bell-housing, a line-pressure control-cable or a splined tail-shaft, it's the wrong one. If it's an A343E with a J3 bell-housing and a 4-stud flange tail, it's the right one. Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 Ok well it sounds like the right one, just how do I know if it has a J1 or J2 bell-housing? Also apart from the mechanical side of the swap what the electrical side like is it just a simple plug? Thanks for all your help guys... Quote Link to comment Share on other sites More sharing options...
David P Posted June 26, 2012 Share Posted June 26, 2012 (edited) Who said anything about a "J2"? I have already sent you these pics by pm. http://www.mkivsupra.net/vbb/showthread.php?233707-Project-Supracharger&p=3080115&viewfull=1#post3080115 Are you still "spoon fed"? Edited June 26, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 (edited) Who said anything about a "J2"? I have already sent you these pics by pm. http://www.mkivsupra.net/vbb/showthread.php?233707-Project-Supracharger&p=3080115&viewfull=1#post3080115 Are you still "spoon fed"? When it comes to supra tech I suppose I am being spoon fed Sorry dude i`ll read the whole thread... EDIT: Just see where the "J" is on the bell-housing so if steveR can confirm that the lexus g300 trans he has, has J1 or J3 on it? Edited June 26, 2012 by Kaan W (see edit history) Quote Link to comment Share on other sites More sharing options...
SteveR Posted June 26, 2012 Share Posted June 26, 2012 When it comes to supra tech I suppose I am being spoon fed Sorry dude i`ll read the whole thread... EDIT: Just see where the "J" is on the bell-housing so if steveR can confirm that the lexus g300 trans he has, has J1 or J3 on it? It says "J2", and had a 3-bolt output flange. Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 It says "J2", and had a 3-bolt output flange. DAMN! I need a J3 with a 4 bolt output flange. Never mind dude thanks anyway. Quote Link to comment Share on other sites More sharing options...
SteveR Posted June 26, 2012 Share Posted June 26, 2012 DAMN! I need a J3 with a 4 bolt output flange. Never mind dude thanks anyway. No probs. After reading the thread linked to above, I wonder what the differences are and if it could be converted to work (to my untrained eye my gearbox looks much more like the gearbox with the J3 housing than one with J1 housing); however I suspect it's not worth the bother if you can find a direct fit. Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 Well this looks like the problem guys - Pictures are not really good but you can see the black grime on the filter. After inspecting the transmission fluid I found some debris like thin springy fibres and the fluid was a bit browner than what it looked like when I wiped the dip stick. I decided to go ahead and remove the transmission and get another one. It wernt so bad at first removing everything except the top two bolts were a bit of a nightmare to get to. The only problem we had was the wire connectors we THOUGHT were all removed turned out to be a disaster. As we slid the transmission backwards and slowly started lowering it we realised there was still a fat old connecter still needed seperating! All of a sudden the box weighed 3 times as much and thats when things turned bad, trying to hold the thing on my shoulder the gear box slipped sideways wedging me to the side of the pit bursting open a halogen bulb with fluid pouring all over me. We had to find whatever we could using our legs to prop bits of wood up so we could have a damn rest for 5 seconds this thing really was getting heavy. After getting the box the right way up I managed to get the connecter free and it was off! :D:D As much as it sounds amusing now I thought I was gunno have to pull a swiss army knife out and start hacking away at this bit of loom. Well here it is anyway 3 hours and a dozen towels later - Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted June 26, 2012 Share Posted June 26, 2012 Was there any metallic debris in there? If not you might get away with a fluch and a new filter. This is what a proper fooked gearbox looks like, cheers Jamesy Quote Link to comment Share on other sites More sharing options...
Kaan W Posted June 26, 2012 Author Share Posted June 26, 2012 Was there any metallic debris in there? If not you might get away with a fluch and a new filter. This is what a proper fooked gearbox looks like, cheers Jamesy Wow, well the fluid lookes the same colour and there were black speckles all over the filter and a bit of sludge in the bottom of the oil pan but not that bad! Im gunno take it to an auto specialist tomorrow and see if he can play around with it or beef it up, if not I guess i`ll have to save for a Titan. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted June 26, 2012 Share Posted June 26, 2012 Oh and that box was a BoostLogic btw. Quote Link to comment Share on other sites More sharing options...
David P Posted June 26, 2012 Share Posted June 26, 2012 (edited) "It's worse than that it's dead Jim"! The filter gauze has clogged and the pump has sucked the gauze off and pulled that muck in. Game over red rover. Edited June 26, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
David P Posted June 26, 2012 Share Posted June 26, 2012 (edited) No probs. After reading the thread linked to above, I wonder what the differences are and if it could be converted to work (to my untrained eye my gearbox looks much more like the gearbox with the J3 housing than one with J1 housing); however I suspect it's not worth the bother if you can find a direct fit. I am interested to see some pics of this box, but don't want to hijack the thread, could you post them in thread linked below please. http://www.mkivsupra.net/vbb/showthread.php?270287-A340-A343-Hybrid Edited June 26, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
David P Posted June 26, 2012 Share Posted June 26, 2012 (edited) the top two bolts were a bit of a nightmare to get to. http://i1097.photobucket.com/albums/g351/kaan2lee/DSC02287.jpg With the fan shroud removed and a little care and attention here and there, the tail of the box can be lowered by tilting the engine enough to be able to use a ratchet on that long extension bar and one of those wobbly end sockets you have hanging on the wall. Simples Edited June 26, 2012 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
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