QUESTION.
Now the Otter switch is installed, the grommet was a bit smaller (in terms of depth into the radiator along the switch) than the previous one.
But it is in and appears solid.
Do you recommend any bonding or just let it be.
A.P. - Perth, Western Australia
ANSWER.
Now you have installed the Otter switch in your Lotus Elan Sprint, there is a temptation to introduce additional means of securing the switch.
As the switch is located directly opposite the top radiator hose inlet, its almost impossible to make use of any mechanical anchorage.
There are no recommendations to bond/glue the switch or grommet to the radiator top tank
From experience, the grommet being compressed/expanded by the switch bulb provides sufficient clamping pressure for the assembly to remain in position (and not pop out of the hole whilst under pressure).
All that is required is a periodic inspection to keep an eye on the condition of the rubber grommet
If there are any potential problems, then there are two tell-tale signs that suggest the grommet should be changed
1) Coolant weep stains originating from the grommet.
2) Slight hissing sound originating from grommet when the cooling system is up to temperature and under pressure.
It is recommend that a periodic check/inspection of the grommet be carried out when servicing your Elan Sprint.
Copyright © 2012 Lotus Marques
Now the Otter switch is installed, the grommet was a bit smaller (in terms of depth into the radiator along the switch) than the previous one.
But it is in and appears solid.
Do you recommend any bonding or just let it be.
A.P. - Perth, Western Australia
ANSWER.
Now you have installed the Otter switch in your Lotus Elan Sprint, there is a temptation to introduce additional means of securing the switch.
As the switch is located directly opposite the top radiator hose inlet, its almost impossible to make use of any mechanical anchorage.
There are no recommendations to bond/glue the switch or grommet to the radiator top tank
From experience, the grommet being compressed/expanded by the switch bulb provides sufficient clamping pressure for the assembly to remain in position (and not pop out of the hole whilst under pressure).
All that is required is a periodic inspection to keep an eye on the condition of the rubber grommet
If there are any potential problems, then there are two tell-tale signs that suggest the grommet should be changed
1) Coolant weep stains originating from the grommet.
2) Slight hissing sound originating from grommet when the cooling system is up to temperature and under pressure.
It is recommend that a periodic check/inspection of the grommet be carried out when servicing your Elan Sprint.
Copyright © 2012 Lotus Marques
