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Rear Diff Cover Bolts


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9 replies to this topic

#1 Thrashed

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Posted 21 April 2017 - 01:28 PM

Hi all

Have looked through the Haynes manual and can not find the size for the torx bolts holding on the rear diff cover. Got a leak that needs stopping but no idea on size. I have tried every torx bit I have an none are right!

Also what are the torque setting for tightening them up.

Can anyone help

Thanks
Steve

#2 florin metal works

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Posted 21 April 2017 - 02:14 PM

You may find that they are a right pig to undo even after finding correct torx bit as the ally & steel have "grown"  together.  We ended up drilling out the butchered remains & replacing with s/steel hex head sets.



#3 Thrashed

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Posted 21 April 2017 - 02:30 PM

Sounds like this could be fun then! any idea the torx size. I have a t40 and that's too small and a t55 but that's too big. Guess it will be a t45 or 50? Would a bit of heat help work them lose.

The drain plug came off easy enough with just the right socket

#4 florin metal works

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Posted 21 April 2017 - 02:33 PM

Sorry, can't remember size required;  it was 7 years ago.



#5 Thrashed

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Posted 21 April 2017 - 02:38 PM

Thanks. Looks like I can buy a set of 7 from t20 to t55.

Fingers crossed it plays nice

#6 Longboarder

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Posted 21 April 2017 - 02:54 PM

T50. Give each one a good belt with a hammer to crack the galvanic corrosion.

 

Nigel


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#7 Thrashed

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Posted 21 April 2017 - 04:30 PM

Thanks for the replies. Yes T50 torx. Access was a bit tight but tap with hammer and a long bar and they all came off easy enough.

No gasket that I can see? Is this right or is the reason it leaks? If no gasket can I use some wynn rtv gasket maker?

#8 brumster

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Posted 21 April 2017 - 05:30 PM

No gasket, no. Two surfaces should (should, he says!) be clinically clean and flat before re-assembly. Carefully clean with a knife blade, being careful not to score the metal, then some fine grit sandpaper to clean it up. Brake cleaner, wipe it clean, then re-assemble. If you go for any sealer I would be very conservative with it's application, and try and keep it out of the inside of the casing.



#9 cb750

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Posted 21 April 2017 - 07:26 PM

We used to use Hylomar thinly applied to seal metal to metal surfaces

#10 Thrashed

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Posted 22 April 2017 - 05:56 PM

Thanks for all the tips guys. All worked a treat. Bolts came out easy enough, cleaned and went back together with a little Wynn's gasket maker and all seems to be leak free after having fluids in for 6 hours.