Lotus Elan

My Elan S2 light pods go down on quick acceleration

PostPost by: prezoom » Wed Feb 20, 2019 4:38 pm

I believe that the vacuum switch should only be tested by vacuum. The sliding rubber block is designed to seal under negative pressure and using pressure may/could/will force the block upwards against the flat metal spring, giving a false indication of a leak. The rest of the system can be tested by pressure.
Rob Walker
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
Coveted Fifth Gear
Coveted Fifth Gear
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