Lotus Elan

Gauge issues

PostPost by: disquek » Wed Jun 12, 2019 11:30 pm

When I got my car it had a replacement Smiths temp/pressure gauge in it.

That gauge quickly began to read low.

So I bought a new one from Nissinger.

That one never worked in the temperature side. It always read zero (or the bottom of the scale). After much debate with Nissonger it was replaced.

The replacement has been in the car a couple of weeks and less than 100 miles. It’s now reading low (120 when it’s really 180).

There is nothing unique here (other than the motor). I’ve checked that the bulb isn’t hitting anything. I’ve been so careful installing these things.

Is this a common issue?

Also, on this latest gauge, I think the pressure side is also an issue. It moves like a chronometric tach (jerky).
'70 S4 Elan - Cosworth BDP & Spyder Chassis
'62 S2 Super Seven Cosworth
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PostPost by: 1owner69Elan » Thu Jun 13, 2019 12:17 am

Did you install as original where the temperature capillary tube is clipped to the heater valve and coiled? This helps to keep stress off the capillary/ bulb juncture potentially causing a leak.
'69 Elan S4 SE
Street 181 BHP
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PostPost by: disquek » Thu Jun 13, 2019 12:40 pm

This Elan doesn’t have a twinc. It has a BDP. The capillary tube was neatly coiled and supported.

Kyle
'70 S4 Elan - Cosworth BDP & Spyder Chassis
'62 S2 Super Seven Cosworth
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