Author Topic: Bleeding transfer box control system  (Read 614 times)

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Offline scotrock

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Bleeding transfer box control system
« on: July 27, 2017, 09:58:07 AM »
Hi does anyone know if there is another way to bleed the hydraulic system other than through the bleed screw on the block as my one has total stuck and if I drill it out will them have to try and find a new screw which like everything else will be near to inpossable. Cheers

Offline TURBOHEAD

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Re: Bleeding transfer box control system
« Reply #1 on: July 27, 2017, 18:07:56 PM »
Hi scotrock

The bleed screw you mention is I believe a "Grub screw" near to the hydraulic sphere......so are you saying the screw slot is damaged or the screw refuses to budge.

You may find spraying penetrating oil on it then leaving it a while may loosen it up.......be warned the hydrolic system has high pressure and care should be taken.

I hope this is helpful.

Offline scotrock

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Re: Bleeding transfer box control system
« Reply #2 on: July 27, 2017, 19:17:27 PM »
Hi Turbohead, Thanks for your advise I will give that a go, The grub screw has a 3mm hex slot which rounded off so tried putting a torx bit into it that turn it a fraction which cause PAS fluid to spill out of the Res. But then the bit broke but did manage to get the tip out. I will put some WD40 on it tomorrow and leave it for abit and see what happens.  Cheers Rod

Offline TURBOHEAD

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Re: Bleeding transfer box control system
« Reply #3 on: July 28, 2017, 14:17:45 PM »
Hi scotrock

If you do manage to extract the screw it's going to be foooked .....I have a complete spare unit in the garage........I could just post the grub bleed screw to you or ........if you are unable to get the screw out you could buy my spare unit if you wanted.

Good luck anyway.

Offline TURBOHEAD

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Re: Bleeding transfer box control system
« Reply #4 on: July 28, 2017, 14:41:51 PM »
Scotrock

In your previous post called "Calibra 4x4"....tommygards said he had a  4x4 hydraulic accumulator and offered it to you I think it is only right and fair to contact him first re: his offer...if you decide to buy a replacement unit.

I hate treading on other members toes. :-\

Offline scotrock

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Re: Bleeding transfer box control system
« Reply #5 on: July 28, 2017, 16:41:47 PM »
Hi Turbohead, Thanks for the reply Tommy has sold his unit but I have tracked on down but am waiting to see what condition it is in. If it is not usable I will take you up on your offer. I think if I try to remove the screw It could end up damaging the seating face as I don,t know how long the screw is. I will be in touch one way or another and thanks for your help.   Rod. 

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SRe: Bleeding transfer box control system
« Reply #6 on: August 09, 2017, 15:29:04 PM »
Thanks for your reply scotrock :)

No rush.......the one Iv'e got is not going anywhere......you have first refusal.