No Oil Pressure light.

[chuck hahn]

When we turn the key on..not starting it at this point..just turn the key on the oil pressure light SHOULD come on. Though maybe it was a bad bulb..got new ones and changed them..nothing. Checked the wire that clips on the top. Seemed very well connected and no corrosion. Before tearing anything off i am guessing the switch is stuck with the plunger in the up ( open ) position. I did a search and didnt find any threads about servicing/rebuilding them.. any pointers?? This is a 78 GS 750 E by the way..

 

[Guest]

Take the wire off the oil sending unit and ground it anywhere and the light should come on. If it does it's the plunger or the block needs scuffed up to accept the ground.
If grounding it doesn't have the light come on you have a broken connection somewhere.

 

[chuck hahn]

By the BLOCK, are you referring to the circle rim where the oil is pumped up inside the recess? Or do you mean the case of the switch? I would think the bolts should effect a good ground to the unit..yes??

 

[Guest]

The plunger grounds to the upper case.

 

[chuck hahn]

Thanks Chefl..I will pass this along to Scot in the AM..can he also screw it out from the plastic nut like the schematic shows it assembled and use some parts cleaner to flush it out also? i dont exactly know whats in there so i am asking ....in case the grounding the wire like you said works??

 

[Guest]

If the light comes on by grounding take off the whole unit with the two 10mm bolts and clean the contact on the plunger and take sand paper to the case where it contacts.

 

[chuck hahn]

ok will pass it on...thanks again..good night Ireen.