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Auto Box blowing out fluid.

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  • jbuckl
    replied
    Wow that was quick! Good stuff!

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  • simonmetalback
    replied
    Quick up date. Wow what a difference so pleased with the out come. 52 mile trip home from Clives and enjoyed every mile through the Cotswolds and Oxfrodshire country side. Big thank you to Clive and Russel.
    Onto the next chapter I lost all braking on the way home, no brake fluid leaks so I guess its the Servo. Pump them twice and they are work fine for 5 mins. Going to rename the car the Christine.

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  • tvrgeek
    replied
    Just about every fitting and seal on my 35 leaks except the seal as I fixed that one.

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  • jbuckl
    replied
    Good call. Had one for a few years now & a 3.45:1 diff. Someone recently commented that it drove like a much more modern car. I was pretty impressed with the BW shifting quality though.
    Last edited by jbuckl; 21st May 2020, 00:34.

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  • simonmetalback
    replied
    So got the car up on my local garage and breather pipe is good no blockage and no trace of tmf. Unfortunately it looks like the input seal. I’ve decided to have the Tate & Lewis ZF 4 speed box fitted.
    Thank you for all your help and advice it’s much appreciated. Stay safe and I hope to see you all at a show this year.
    Simon

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  • simonmetalback
    replied
    Ok sorry for all the stupid questions. Took a photo of my transmission dipstick. As you can see it does not have the hot and cold marks on it so I take it its for hi and low. its 14 inches long I'm thinking it could be the wrong dipstick. Hopefully the TM fluid will be here Monday and I can get the car round to the garage to get it up on the ramps for a better look.
    Ill keep you all posted.
    Again thank you all for your input it's really apreciated.

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  • jbuckl
    replied
    Appears to be a type Ł35 if that’s correct, the procedure to change the front seal is easier than the type 65. The box comes off the converter housing from underneath. Requires careful reassembly as the converter drive lugs must pass through the new front seal without catching / damaging.

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  • simonmetalback
    replied
    Originally posted by jbuckl View Post
    It’s possible if that area has transmission oil in it, that the input shaft seal is the culprit. Don’t be too hasty in a diagnosis. Btw, is it a 35 or 65 ? 35 has large alloy sump.

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  • jbuckl
    replied
    It’s possible if that area has transmission oil in it, that the input shaft seal is the culprit. Don’t be too hasty in a diagnosis. Btw, is it a 35 or 65 ? 35 has large alloy sump.

    Leave a comment:


  • simonmetalback
    replied
    Ok so under the car is covered in fluid so no real idea where its coming from. I removed the plastic mesh vent under the bell housing and got my fingers in side and the bottom has fluid in it. Could this be from the main seal leaking under temp and pressure.
    Allso I could just see the ID plate on the box and it is blue and I could just make out the numbers I think were 383.
    Last edited by simonmetalback; 9th May 2020, 11:49.

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  • simonmetalback
    replied
    Originally posted by marshman View Post
    HI,

    Looking at the pictures you took when you first got the car you have a BW35 box. From what you describe it could be that the breather pipe has split or come away from the box. It is a bit awkward to get to but it is doable. It happened on mine and in the course of a 50 mile drive it dumped a lot of the fluid onto the exhaust - nice lot of white smoke behind! Only seemed to dump at higher speeds. When I got back the level was off of the bottom of the dipstick and the box was slipping on fast left hand bends!!

    If you follow the breather pipe down with your hand from the engine bay to the gearbox, it should come up near the dipstick tube and loop over the servo, you should be able to see/feel if it is connected or not. If it still looks like the original black rubber, chances are it could be cracked/split. Easy check to do - I always start with the easy no cost stuff first!!

    Once you have checked/fixed the breather then fill it back up with fluid. You can't properly check the level when cold. You need to run the engine, get it all warmed up, cycle through the gears if just topped up, then turn off and check the level immediately (within 30 secs to a minute).

    Roger
    Hi Roger

    many thanks for your input. Bit cheeky but could I call you for a chat please. If possible text me you’re number and I’ll call you back 07764767592. Thank you.
    regards Simon.

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  • marshman
    replied
    HI,

    Looking at the pictures you took when you first got the car you have a BW35 box. From what you describe it could be that the breather pipe has split or come away from the box. It is a bit awkward to get to but it is doable. It happened on mine and in the course of a 50 mile drive it dumped a lot of the fluid onto the exhaust - nice lot of white smoke behind! Only seemed to dump at higher speeds. When I got back the level was off of the bottom of the dipstick and the box was slipping on fast left hand bends!!

    If you follow the breather pipe down with your hand from the engine bay to the gearbox, it should come up near the dipstick tube and loop over the servo, you should be able to see/feel if it is connected or not. If it still looks like the original black rubber, chances are it could be cracked/split. Easy check to do - I always start with the easy no cost stuff first!!

    Once you have checked/fixed the breather then fill it back up with fluid. You can't properly check the level when cold. You need to run the engine, get it all warmed up, cycle through the gears if just topped up, then turn off and check the level immediately (within 30 secs to a minute).

    Roger

    Leave a comment:


  • simonmetalback
    replied
    Ok so I’ve done the level check as it says in the manual, no oil on the dip stick. My concerns are that my dip stick does not have hot and cold on it and is only 14” long. Is this normal or am I unlucky to have the wrong dip stick. Jacking it up next to see what box it is.

    Leave a comment:


  • simonmetalback
    replied
    Originally posted by Rackned View Post
    Staying on topic my box leaks oil when just stationary in the garage or after a run but it’s not consistent. Sometimes it doesn’t leak at all for months. The other day I had to turn the ignition on but not run the car, the following day There was far more oil on the floor, can anybody give me an indication as to why this is happening thanks
    This has happened to me as well, after yesterday I moved the car back and there was only a little in the drip trays. This is my first auto so I need all the help I can get.

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  • Rackned
    replied
    Staying on topic my box leaks oil when just stationary in the garage or after a run but it’s not consistent. Sometimes it doesn’t leak at all for months. The other day I had to turn the ignition on but not run the car, the following day There was far more oil on the floor, can anybody give me an indication as to why this is happening thanks

    Leave a comment:

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