Lotus Elan

Road draft tube on S3

PostPost by: gjz30075 » Wed Nov 08, 2023 3:28 pm

Sort of following up on my continuing air box questions, my car 45/7286 has a road draft tube but
also has a rounded back plate with a nipple for a breather to go to the head. Which would be correct:
road draft tube or tube from back plate to head?

Or maybe both, assuming 'overlap' with parts?

This thread could be helpful but the pics are gone. Has anyone saved the pictures from this thread?
viewtopic.php?f=40&t=19248
Greg Z
45/0243K Sprint
45/7286 S3 SE DHC
User avatar
gjz30075
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3493
Joined: 12 Sep 2003
Location: Roswell, Georgia, USA

PostPost by: StressCraxx » Wed Nov 08, 2023 5:42 pm

It could have been either one, but most likely the breather tube to the road. The parts book indicates the tube to the airbox started with the Strombergs. I converted mine to the tube to airbox because I got tired of the fumes and vapor coming from under the car when sitting in traffic.

BTW, my chassis # is 7279.
There is no cure for Lotus, only treatment.
User avatar
StressCraxx
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1424
Joined: 26 Sep 2003
Location: San Francisco Bay Area, California

PostPost by: alan.barker » Wed Nov 08, 2023 7:31 pm

Vocab English or USA draft or draught.
But what's a Draught/Draft tube please.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3707
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: RichardHawkins » Wed Nov 08, 2023 7:44 pm

Alan,

My understanding is that a draft tube is a piece of pipe that vents crankcase fumes to atmosphere under the car. My car is an early S4 1968 and came with a draft tube.

Richard Hawkins
RichardHawkins
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1213
Joined: 05 Jul 2008
Location: Lincolnshire U.K.

PostPost by: StressCraxx » Wed Nov 08, 2023 7:46 pm

alan.barker wrote:Vocab English or USA draft or draught.
But what's a Draught/Draft tube please.
Alan


Hello Alan,
My humble skills with translating American caused me to think he was referring to the breather tube hole at the back of the head that had a rubber 90 deg elbow to a metal tube that allowed the crankcase fumes to escape out the bottom of the engine bay.
There is no cure for Lotus, only treatment.
User avatar
StressCraxx
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1424
Joined: 26 Sep 2003
Location: San Francisco Bay Area, California

PostPost by: gjz30075 » Wed Nov 08, 2023 7:55 pm

^^^ Correct.
Greg Z
45/0243K Sprint
45/7286 S3 SE DHC
User avatar
gjz30075
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3493
Joined: 12 Sep 2003
Location: Roswell, Georgia, USA

PostPost by: alan.barker » Wed Nov 08, 2023 8:18 pm

Ok so 2 different spellings possible.
For sure breathing in Engine vapours or Exhaust is not nice.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
alan.barker
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3707
Joined: 06 Dec 2008
Location: BRITTANY FRANCE

PostPost by: pharriso » Wed Nov 08, 2023 11:30 pm

Also referred to as a Road Oiler!
Phil Harrison
1972 Elan Sprint 0260K
User avatar
pharriso
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 3600
Joined: 15 Sep 2010
Location: Long Island NY, USA

PostPost by: prezoom » Thu Nov 09, 2023 3:02 pm

Chassis/subframe saver.
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: 1337
Joined: 16 Mar 2009
Location: Escondido, California

PostPost by: Quart Meg Miles » Fri Nov 10, 2023 3:34 pm

Has anyone designed a catch-can or bottle to collect the fluids from that tube?

Since rebuilding my engine with a proper rear crank seal I only have oil drips from the tube after a run, quite small but worth keeping off the floor.
Meg

26/4088 1965 S1½ Old and scruffy but in perfect working order; the car too.
________________Put your money where your mouse is, click on "Support LotusElan.net" below.
User avatar
Quart Meg Miles
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1278
Joined: 03 Oct 2012
Location: Barnham, W Sussex, UK

PostPost by: Foxie » Thu Dec 07, 2023 11:29 pm

Quart Meg Miles wrote:Has anyone designed a catch-can or bottle to collect the fluids from that tube?

Since rebuilding my engine with a proper rear crank seal I only have oil drips from the tube after a run, quite small but worth keeping off the floor.


Before I converted my Plus 2 to dry-sump, I took a 500 ml brake fluid bottle, stuffed it with pot scourers to catch the oil, cut a hole near the top to take a hose from a nipple which I tapped into the head breather opening. I emptied the bottle when it was full.

:)
68 Elan +2, 70 Elan +2s
User avatar
Foxie
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1631
Joined: 20 Sep 2003
Location: Wexford, Ireland

PostPost by: Quart Meg Miles » Thu Dec 07, 2023 11:57 pm

Foxie wrote:
Quart Meg Miles wrote:Has anyone designed a catch-can or bottle to collect the fluids from that tube?

Before I converted my Plus 2 to dry-sump, I took a 500 ml brake fluid bottle, stuffed it with pot scourers to catch the oil, cut a hole near the top to take a hose from a nipple which I tapped into the head breather opening. I emptied the bottle when it was full. :)

Thanks Foxie, I hadn't thought of replacing the original tube! I know the +2 has more space (and yours being LH drive doesn't have the brake cylinders on the carb side) but I'm wondering where your bottle vents to, is it up with the carbs or down below?
Meg

26/4088 1965 S1½ Old and scruffy but in perfect working order; the car too.
________________Put your money where your mouse is, click on "Support LotusElan.net" below.
User avatar
Quart Meg Miles
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1278
Joined: 03 Oct 2012
Location: Barnham, W Sussex, UK

PostPost by: Dellortofan » Sat Feb 24, 2024 8:51 pm

There are a lot of metal drinks bottles
for water nowadays with a screw top that look neat. The bracket off a racing bike holds it well. Till needed to get it off to empty oil...
Dellortofan
First Gear
First Gear
 
Posts: 26
Joined: 30 Jan 2024
Location: Uk

Total Online:

Users browsing this forum: No registered users and 10 guests