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Laygear wanted for BN1 - (Read 1,906 Times)
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GAS705
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Post Icon Posted: Nov 2nd, 2011 at 06:20 am

Having decided earlier in the day NOT to sell my BN1, I was cruising back home from work when second started to make an 'orrible noise.

Investigations last night showed some missing teeth on the laygear. This is apparently quite common, I have just discovered. Smiley

Common the problem may be, but the solution is far from common!

Does anyone have a laygear for a March '53 BN1 lying around under their pile of rocking horse excrement?

Failing that, any good ideas that would save me the equivalent of a small family saloon in cash to fix it? Smiley

I'd like to stay reasonably original as the car is an ex-concours vehicle (well, it came third at the 50th!) Smiley

Help!!

Martin
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'53 BN1 Body Number 544 in Cambridge UK

Frankenhealey
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Post Icon Posted: Nov 2nd, 2011 at 08:01 am

See this thread http://healey.hyperboards.com/action/view_topic/topic_id/2396 he might still have it!!!

Quote:
I'd like to stay reasonably original as the car is an ex-concours vehicle (well, it came third at the 50th!)


Should you even be driving it then?

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frogeye61
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Post Icon Posted: Nov 2nd, 2011 at 08:57 am

Hi Not sure where you are but Hardy Engineering in Surry have quite a good selection of big healey gearbox bits
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GAS705
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Post Icon Posted: Nov 2nd, 2011 at 09:24 am

Nov 2nd, 2011 at 08:01 am, Frankenhealey wrote:
See this thread http://healey.hyperboards.com/action/view_topic/topic_id/2396 he might still have it!!!

Quote:
I'd like to stay reasonably original as the car is an ex-concours vehicle (well, it came third at the 50th!)


Should you even be driving it then?



Well, I did say it was ex-concours - at the same time I took it round Thruxton, up Prescott and has been autotesting at Kemble. It is still quite clean but I don't see the point of simply looking at it.

The part number on that thread doesn't match mine, and mine isn't the same as the others in the lists I have seen. Mine's 1B3694 - I wonder if my 'box is A90?

Martin

« Last Edited by GAS705 Nov 2nd, 2011 at 09:26 am »
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'53 BN1 Body Number 544 in Cambridge UK
twopazzo
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Post Icon Posted: Nov 3rd, 2011 at 08:55 am

I am not sure yet I just got to my shop let me look through my "pile of rocking horse excrement" (that's great!) and let me see what I have.

-Aaron
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GAS705
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Post Icon Posted: Nov 3rd, 2011 at 10:20 am

Nov 3rd, 2011 at 08:55 am, twopazzo wrote:
I am not sure yet I just got to my shop let me look through my "pile of rocking horse excrement" (that's great!) and let me see what I have.

-Aaron


That's great, keep me posted. My Laygear is part number 1B3694.

Martin
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'53 BN1 Body Number 544 in Cambridge UK
healeyhundred
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Post Icon Posted: Nov 3rd, 2011 at 10:23 am

Martin

If you put your location in your signature it'll help us know where you are, and perhaps keep Aaron's hands out of the rocking horse manure (I'm assuming you're nowhere near Pennyslvania, US).

Glad to hear you've decided to keep the car - let's hope you can get it fixed quickly. Big Healey Restorations might be worth googling as I get the impression he has a decent pile of bits'n'bobs.

James
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GAS705
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Post Icon Posted: Nov 3rd, 2011 at 10:30 am

Nov 3rd, 2011 at 10:23 am, healeyhundred wrote:
Martin

If you put your location in your signature it'll help us know where you are, and perhaps keep Aaron's hands out of the rocking horse manure (I'm assuming you're nowhere near Pennyslvania, US).

Glad to hear you've decided to keep the car - let's hope you can get it fixed quickly. Big Healey Restorations might be worth googling as I get the impression he has a decent pile of bits'n'bobs.

James


Aha, yes I suspect that knowing where I am may help. Not in this case, though, as I reckon that I am going to need to search far and wide for this!

I'm based in Cambridge in the UK but have a chum in Connecticut who will receive stuff for me and as I'm usually in the States 3 or 4 times a year, this isn't a problem.
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'53 BN1 Body Number 544 in Cambridge UK
Frankenhealey
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Post Icon Posted: Nov 3rd, 2011 at 10:33 am

I've just found a definitive guide and assuming it's correct then a BN1 laygear should either be a 1B3481 or commencing from chassis no. 160321 it should be 1B3693 but not 1B3694. There have been a few other people with your problem over the years but there does not seem to be a specific answer. It may be as you surmise; that you have an A90 layshaft.

I've just emailed the author of the gearset guide for permission to put it up here.

Ian
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GAS705
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Post Icon Posted: Nov 3rd, 2011 at 10:44 am

Nov 3rd, 2011 at 10:33 am, Frankenhealey wrote:
I've just found a definitive guide and assuming it's correct then a BN1 laygear should either be a 1B3481 or commencing from chassis no. 160321 it should be 1B3693 but not 1B3694. There have been a few other people with your problem over the years but there does not seem to be a specific answer. It may be as you surmise; that you have an A90 layshaft.

I've just emailed the author of the gearset guide for permission to put it up here.

Ian


OK, thanks for that.

A well-known Healey specialist in the UK has found a 1B3965. Another one has a 1B3693. That means that I can get a 1B3693 or a 1B3695 but not the 1B3694 in between. I also have NO idea what the difference is so no clue whether one of these "will do". Given the scarcity of the third gear that meshes with it, I want to be absolutely sure that it is suitable before I risk the rest of my geartrain by fitting a laygear with slightly different angles/teeth numbers.

Does anyone know the differences?

All I want is to get it back on the road, I've only just managed to get it running properly (Overdrive rebuild, carb replacement, 100M conversion and a dodgy coil) and now I can't use it at all!

« Last Edited by GAS705 Nov 3rd, 2011 at 10:46 am »
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Post Icon Posted: Nov 7th, 2011 at 10:06 am

I looked through all my laygears and could not find a 1B3694. Sorry but I do have almost any other part you could need.

Thanks
-Aaron
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Post Icon Posted: Nov 7th, 2011 at 10:56 am

Nov 7th, 2011 at 10:06 am, twopazzo wrote:
I looked through all my laygears and could not find a 1B3694. Sorry but I do have almost any other part you could need.

Thanks
-Aaron


OK, thanks for that. On the off-chance as I'm trying a different tack at the moment, do you have a 1B3693?

Martin
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'53 BN1 Body Number 544 in Cambridge UK
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Post Icon Posted: Nov 8th, 2011 at 08:43 am

I don't have one at my garage but let me look in the barn, no promises but I'll take a look.
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Post Icon Posted: Nov 9th, 2011 at 09:04 am

No dice Martin. Sorry

-Aaron
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Post Icon Posted: Nov 9th, 2011 at 09:07 am

Nov 9th, 2011 at 09:04 am, twopazzo wrote:
No dice Martin. Sorry

-Aaron


Ok, thanks for looking!

Martin
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