[Fot] Radiator Caps

[Tony Drews]

The working cap on my TR-4 has between 40 and 50 thou of height 
difference between the cap measurement and the radiator "well" 
measurement.  The cap measures 0.780 to 0.790 and the radiator measures 0.740".

- Tony

At 09:24 AM 6/3/2009, Barr, Scott wrote:
>I've replaced the cap with a new one, with all the parts in place.  It
>still runs water out of the overflow tube, so I think we may have
>another issue.
>
>I measured the distance from the top sealing seat to the lower sealing
>seat - approx. 0.750" -  and the distance on the new cap from the upper
>seal to the lower seal - approx. 0.800".  That difference (0.050")
>doesn't seem like enough of a difference to me.
>
>Any ideas as to how much the spring should be compressed to hold the
>pressure?
>
>Scott B.