Blue Propshaft to Diff Bolts

[F355GTS]

Anybody know the Torque setting?

 

 

 

thanks

 

Mark

[Pete]

42 lbft (58Nm)

 

[F355GTS]

Thanks Pete

 

Mark

[Rob Walker]

Use new blue bolts plus Loctite.

[Chelspeed]

I thought the blue coating was some kind of solid loctite equivalent. Can't see Ford guys on the production line doing 500 bolts an hour with a 5ml bottle of loctite putting a drop on each bolt......

 

Do you really need to use loctite too? Or is this just can't do any harm so why not, belt and braces kind of thing?

[F355GTS]

I used new bolts but didn't use Loctite so here's hoping!

 

Mark

[Rob Walker]

You MUST use loctite, the blue coating only identifies that they are the specially hardened and tempered bolt. You will note that the bolt threads into the flange without any resistance there is no plastic locking film present therefore Loctite or similar is escential.

[KenEvans]

Absolutely! RTFM Mark Loctite is required ❗

[Tony C]

FWIW: If I remember correctly from my days as an aircraft mechanic, all Loctite is not equal.

On a recent wander around my local Halford's, I saw plenty of "Loctite", but non of the threadlock variety.

See here - I think this will be the prefered variety:

 

http://www.loctite-europe.com/PRODUCTS/262.htm

 

BECAUSE OF ITS LUBRICATING QUALITIES, THE TORQUE VALUE OF THE BOLTS MAY NEED TO BE REDUCED SLIGHTLY, I'LL TRY AND FIND OUT BY HOW MUCH. IF ANYONE KNOWS A VALUE, PLEASE LEAP-IN.

 

HERE YOU GO!

http://www.norbar.com/pdf_files/TorqueValueGuide.pdf

Looks like 42 lb ft x 0.7 gives 29.4 lb ft

Bigger reduction than I thought, but It's the same value on several sites I visited.

 

Also, the threads must be free of grease before assembly, but I'm sure the product will have all the advice required enclosed.

 

Halford's can't be ALL bad, they do staock "Hylomar", the queen of sealants.

Regards and Merry Christmas,

Tony

 

Edited by - Tony C on 22 Dec 2002 14:00:04

 

Edited by - Tony C on 22 Dec 2002 14:12:27 😬

 

Edited by - Tony C on 22 Dec 2002 14:32:33 😬 😬

 

Edited by - Tony C on 22 Dec 2002 14:34:31

[F355GTS]

Oh well back on the Axle stands again, another night under the car

 

Mark

[Rob Walker]

You know it makes sense Mark! If the prop comes undone it could seriously injur you or the driver

[Bilbo]

Hi All

 

Well 14 years on just the blue coating is fine so far ! Properly rust sealed by now

 

As Chelspeed said

 

I thought the blue coating was some kind of solid loctite equivalent

 

Still I doupt after all this time it will give me sleepless nights

 

'Can you hear me running' ......... OH YES and its music to my ears 😬 😬 😬

1988 200 bhp, 146 ft lbs, 1700cc Cosworth BD? on Weber's with Brooklands and Clamshell wings, Freestyle Motorsport suspension. Q 979 CGY