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Post Info TOPIC: Layrub bolt sizes.


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Layrub bolt sizes.


As per the title. Can anyone advise the sizes of the bolts that attach the layrub to the diff and prop shaft, please?



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Them are whitworth screws, Mike. Mine also have aerolock nuts. I'll get the size for you this morning, but they'll be the proverbial hen's teeth.

F

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Thanks, Frank. I rather assumed they'd be something obscure hence the question. Forgive me, but I also assumed you'd be the one with the answer biggrin



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everyone needs a Frank. If you have the sizes I might be able to get some as I my mate deals in fastenerssmile



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I was going to lift the back seat out yesterday, and measure one for you, but it's raining.

Given that BSF and Whitworth are both defined by thread diameter, either should do.

The bolt mics up as a half inch diameter and it's two and a half inches long, from under the head.

The locknuts are an early version of nyloc, called aeronuts I think.

So far so good, but if you've lost the half inch long shouldered spacers I can see why you are confused.

F



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Other Frank's are available.

 

F



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Thank you Frank.

I actually had the opportunity to measure up the layrub and diff flange today and those were the sizes I came up with. 1/2 x 2 1/2. It did beg the question, do I really need BSW? I guess the answer is no unless originality is my priority which it isn't.

I'll order some up from Namrick.

Probably the best Frank in the world.



-- Edited by mikerf on Thursday 15th of August 2019 10:11:49 PM

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anyone know of a reliable supply of Layrubs in today's market place?



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If you find a source for the Layrubs, and they only want a minimum quantity, I would be in for a couple.



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59' Peerless #213, 61' Warwick GT, 60' Healey BN7, 70' Lotus Europa, 88' M5...



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Layrub coupling:

Can't find my old spare one to take dims off, does anyone have one to hand or has the correct dims they can give me? Outer dia, PCD and dims between bolts would be a sterling start!

layrub dims (Large).jpg

 



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Bugger. Mine went in the car some time ago and I don't really fancy taking it out given the amount of threadlock I used.

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I dug out the diff that travelled to the Netherlands 35 years ago inside the Ph2 that I now own.

Bought that diff 17 years ago from the Dutch guy who took the car from the UK.

Anyway the dimensions:

Outer diameter 139.8mm  or 5 1/2"

PCD 88mm which is very close to 3 1/2"

Space between bolts is approx 62.5mm

The hole inside is 1"

If you need more dimensions let me know. 

20201124_220214.jpg



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Is this with a view to getting new ones made, Nigel? If it is, put me down for one. I'm using the original which isn't in too bad condition but it will probably need replacing at some point in the future.

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thanks Erik, space between bolts seems very small at 62.5mm? is that centres? although, PCD seems small as well...perhaps it just seemed bigger in memory (like a lot of things...)

Yes Mike I am trying to look into these (again!) and alternatives.

Have to say I'm running a UJ in its place and have found no difference wink but it is not a simple replacement option so I don't think the great unwashed would be interested.



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When I rebuilt my Warwick I did not use the drive shaft, layrub, or differential. I still have all of it if any body

is interested. Would be quite a bit to ship any where.

Also transmission cover, radiator shroud, steering linkages. 

Dean Tetterton

Richmond, Va. USA

 



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