Lotus Elan

Tachometer / Speedometer Thread Size

PostPost by: stugilmour » Sun Jun 22, 2014 3:57 am

Anyone got their Tach or Speedo out of the car? I lost one of the knurled mounting nuts, but already have the dash back in place and forgot to measure the threads. My car is a '69 Plus 2, but assuming the mounting studs are the same for all models.

Thx

Stu
Stu
1969 Plus 2 Federal LHD
User avatar
stugilmour
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1751
Joined: 03 Sep 2007
Location: Calgary Alberta Canada

PostPost by: alan71 » Sun Jun 22, 2014 11:25 am

I think it's 3BA.

Alan.
alan71
Second Gear
Second Gear
 
Posts: 222
Joined: 15 Jul 2007
Location: UK

PostPost by: stugilmour » Sun Jun 22, 2014 1:20 pm

Thanks Alan. Hopefully i have a spare somewhere. Stu
Stu
1969 Plus 2 Federal LHD
User avatar
stugilmour
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1751
Joined: 03 Sep 2007
Location: Calgary Alberta Canada

PostPost by: nigelrbfurness » Mon Jun 23, 2014 8:56 am

They are 3BA. At a pinch you can just run a tap down a 4BA nut and use a washer whilst you turn up a proper job :)
1970 S4SE/1760cc big valve/SA-AX block, L2s, 45DCOEs, 1978 Jensen GT, 1962 AH Sprite, Alfa-Romeo 159, 1966 Bristol Bus, 1947 AEC Regal bus.
nigelrbfurness
Third Gear
Third Gear
 
Posts: 396
Joined: 04 Apr 2008
Location: Dunmow, Essex, UK

PostPost by: Elan45 » Mon Jun 23, 2014 12:26 pm

Stu,

I'm sure BA taps and dies aren't any more plentiful in Alberta than they are in Ohio.

The nuts will be the same on MGs and Triumphs, actully just about any British car from that era. So if you know of a breakers with an old Morris Minor or Standard 10, the nut off that will solve your problem. Good luck. And if your donor car is a Standard 10, I need some steering pieces.

Roger
'67 Elan S3 SS DHC
'67 Elan FHC pre-airflow
'67 Elan S3 SE upgrade to 26R by Original owner
'58 Eleven S2 (ex-works)
'62 20/22 FJ (ex-Yamura)
'70 Elan +2S RHD
'61 20 FJ project
'76 Modus M1 F3
Elan45
Fourth Gear
Fourth Gear
 
Posts: 874
Joined: 23 Nov 2008
Location: Ohio, USA

PostPost by: stugilmour » Mon Jun 23, 2014 2:25 pm

Thanks Roger. I checked for a spare, and all I had was an incorrect sized nut from a refurbished gauge; different size for some reason. I have the gauge temporarily mounted with (I think) a 6-32 nut that 'sort of' fits.

Will ask my local Brit car specialists if they have one kicking about. With our climate here the breakers have long ago removed anything vaguely British in origin. :) At least I know trying our local bolt supplier or diving thru my junk box and taps is not going to be too profitable. :)

Cheers!

Stu
Stu
1969 Plus 2 Federal LHD
User avatar
stugilmour
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1751
Joined: 03 Sep 2007
Location: Calgary Alberta Canada

PostPost by: prezoom » Mon Jun 23, 2014 3:32 pm

Been there, done that with the knurled nuts for the tach and speedometer. Try Metric & Multistandard Components Corp., in Hawthorn, NY. 914 769 5020/800 431 2792, metricmcc.com. They have all sorts of taps, dies, bolts, etc., and appropriate wrenches for British threaded components.

Rob Walker
26-4889
Rob Walker
26-4889
50-0315N
1964 Sabra GT
1964 Elva Mk4T Coupe (awaiting restoration)
1965 Ford Falcon Ranchero, 302,AOD,9",rack and pinion,disc,etc,etc,etc
1954 Nash Healey LeMans Coupe

Owning a Lotus will get you off the couch
prezoom
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1249
Joined: 16 Mar 2009
Location: Escondido, California

PostPost by: billwill » Mon Jun 23, 2014 4:27 pm

Old British electronic equipment is likely to have BA nuts & bolts in it.
Bill Williams

36/6725 S3 Coupe OGU108E Yellow over Black.
billwill
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 4719
Joined: 19 Apr 2008
Location: London UK

PostPost by: pamitchell » Mon Jun 23, 2014 11:50 pm

I ordered 3BA instrument wheel nuts for this UK eBayer
http://www.ebay.com/usr/lotsofclassicbi ... 1543.l2754
Very pleased with the service and products provided over the years.
Phil
1968 S4/SE FHC 36-7936
pamitchell
Third Gear
Third Gear
 
Posts: 337
Joined: 11 Sep 2003
Location: San Jose CA.

Total Online:

Users browsing this forum: No registered users and 22 guests