Prop to diff bolts size

Post by **Lukey** » Thu Jul 02, 2009 3:33 pm

Does anybody know the size of the bolts? Ta luke.

Post by **rayofleamington** » Thu Jul 02, 2009 8:45 pm

Bolt head should be 1/4" Whitworth (Same as 5/16" BS)
Thats about 13.3 mm in metric (non existent) or arounf 17/32 AF (not sure that exists either!)

So you'll probably be needing some Olde English tools for that.
The bolt itself has a plain section (non threaded) long enough to pass thorough the interface, and the diameter is a good fit to the holes. This makes them very good for the job...

However I've seen some of them replaced with M8 bolts (far from ideal)

Post by **mike.perry** » Thu Jul 02, 2009 9:42 pm

The propshaft bolts are normally fitted with spring washers or nylock nuts

Post by **Matt** » Thu Jul 02, 2009 10:28 pm

And (in theory) are high tensile

Post by **Lukey** » Thu Jul 02, 2009 11:04 pm

Thanks folks

. Is this in the spanner sizes thread? I swear I couldn't find it.

Post by **Lukey** » Fri Jul 03, 2009 9:20 pm

One more thing, do I absolutely need to remove the prop before I can take the engine and gearbox out in unison?

Post by **rayofleamington** » Fri Jul 03, 2009 9:56 pm

One more thing, do I absolutely need to remove the prop before I can take the engine and gearbox out in unison?

If you split engine and box before removing, then engine will come oput on its own. After that the box can come out into the engine bay without removing the prop.
However this is making life 50 times more hard than just removing the prop.

Also remember that when the prop comes out of the box, the gearbox oil will run out of the hole...

Is this in the spanner sizes thread?

No idea - I've never had to look in there! The internet wasn't around when I took myfirst minor apart... and compared to most owners I'm a youngster

Post by **HarryMango** » Fri Jul 03, 2009 10:40 pm

Lukey wrote:Thanks folks . Is this in the spanner sizes thread? I swear I couldn't find it.

Yes it is but listed as UJ bolt 1/4 whit spanner

Rog