<VV> Spyder Temp-Press light diagnosis

[Hugo Miller]

Nine times out of ten (I'm talking about cars in general, not 
Corvair-specific) it will be a faulty switch rather than low pressure.
But I got caught out once with a Saab 9000, which I had lent to a 
friend. She said the oil light was reluctant to go out until you got the 
revs up. I checked the oil level and dismissed it as a faulty switch. 
But it wasn't. These engines have an unfortunate habit of blocking the 
oil feed pipe, as I discovered after she had wrecked the engine!

On 2019-12-01 21:55, Doug Mackintosh wrote:
> My next steps will be to drive it to see if it recurs, then see if
> disconnecting the oil pressure switch does the trick (which I expect
> it will), then either swap the switch or first check the actual
> pressure when the switch is tripped and go from there.
>
> Hugo Said:
> <<It's a gamble, but I would put my money on an oil pressure switch
>
> malfunction. If it recurs, pull the wire off the switch & see if it
>
> makes a difference. Or it may be a wire to either the oil pressure
>
> switch or temperature sender chafed through somewhere and going to
>
> ground intermittently. Doesn't sound as though you have an
> overheating
>
> problem, and I would be surprised if you have an oil pressure problem
>
> either. If it happens again & you can't find an obvious cause, I
> would
>
> next change the oil pressure switch.>>
>
> -- Doug Mackintosh Corsa member since 1996 Corsa/NC member since
> 1996, Virtual Vairs member Corvair owner 1969-1971 and 1996-on