Lotus Elan

? thread size

PostPost by: rdssdi » Mon Sep 11, 2006 7:04 pm

What is the thread size of the knurled nut that secures the Smiths Tach?

I tried an 8-32 and it threads on partially but binds. A 10-32 and 10-24 are
too large and a 6-32 is too small.

I would like to secure the instrument voltage regulator at the bottom of the
post. I feel it would be grounded better than screwing it to the rear of the
wood dash.

Bob
1969 Elan +2
rdssdi
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1383
Joined: 30 Sep 2003

PostPost by: tvacc » Mon Sep 11, 2006 7:12 pm

Don't know the thread size..but I can tell you that I never found one that
fit. Must be a british standard size..



Tony Vaccaro



_____

From: ***@***.***lto:***@***.*** Behalf
Of ***@***.***
Sent: Monday, September 11, 2006 3:00 PM
To: ***@***.***
Subject: [LotusElan.net] ? thread size



What is the thread size of the knurled nut that secures the Smiths Tach?

I tried an 8-32 and it threads on partially but binds. A 10-32 and 10-24 are

too large and a 6-32 is too small.

I would like to secure the instrument voltage regulator at the bottom of the

post. I feel it would be grounded better than screwing it to the rear of the

wood dash.

Bob
1969 Elan +2
Tony Vaccaro
http://www.lotusowners.com
LOONY (Lotus Owners of New York)
Drive Fast Take Chances
71 Spyder Elan, ElanGTS, 93 Caterham, 05 Elise,
99 Elise190, 91 M100 Elan, 74 Europa, 72 Europa JPS #15
User avatar
tvacc
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1099
Joined: 24 Dec 2003
Location: Buffalo NY

PostPost by: rdssdi » Mon Sep 11, 2006 7:17 pm

I know that an 8-36 nut is made but not common. May be that size.

Bob
rdssdi
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1383
Joined: 30 Sep 2003

PostPost by: rdssdi » Mon Sep 11, 2006 7:42 pm

I will try an 8-32 tap into the nut and see if that frees it up. I spoke
with Nisonger and they said various thread sizes were used and without the
instrument in hand they could not identify the thread. Further, they indicated
that a "British" thread was used and it would be unlikely that I could find it
here.

Bob
rdssdi
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1383
Joined: 30 Sep 2003

PostPost by: elansprint71 » Mon Sep 11, 2006 8:26 pm

I can't be certain but it is most probably a B.A. (British Association)
thread, these were used on instruments and other applications where a
small thread was required. Very unlikely that you will come across this
in the USA.

Cheers,
Pete.

***@***.***e:

What is the thread size of the knurled nut that secures the Smiths Tach?

I tried an 8-32 and it threads on partially but binds. A 10-32 and
10-24 are
too large and a 6-32 is too small.

I would like to secure the instrument voltage regulator at the bottom
of the
post. I feel it would be grounded better than screwing it to the rear
of the
wood dash.

Bob
1969 Elan +2




User avatar
elansprint71
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 4022
Joined: 16 Sep 2003
Location: Cheshire, UK.

PostPost by: tvacc » Mon Sep 11, 2006 10:09 pm

Yes.like I said ..a British Standard thread. But.I never had any that were
different..all the same.



_____

From: ***@***.***lto:***@***.*** Behalf
Of ***@***.***
Sent: Monday, September 11, 2006 3:36 PM
To: ***@***.***
Subject: Re: [LotusElan.net] ? thread size



I will try an 8-32 tap into the nut and see if that frees it up. I spoke
with Nisonger and they said various thread sizes were used and without the
instrument in hand they could not identify the thread. Further, they
indicated
that a "British" thread was used and it would be unlikely that I could find
it
here.

Bob
Tony Vaccaro
http://www.lotusowners.com
LOONY (Lotus Owners of New York)
Drive Fast Take Chances
71 Spyder Elan, ElanGTS, 93 Caterham, 05 Elise,
99 Elise190, 91 M100 Elan, 74 Europa, 72 Europa JPS #15
User avatar
tvacc
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1099
Joined: 24 Dec 2003
Location: Buffalo NY

Total Online:

Users browsing this forum: No registered users and 3 guests