case 400 gase 251 valve springs

windhillfarmer · Mar 29, 2012

i was inspecting my valve train and the valve springs are soft feeling a can fully compress in my palm with one hand. i have a set of va 124 valve springs and they are 3 times as stiff. I was wondering if someone put something different not correct in my 400?

D G Wells · Mar 30, 2012

Windhillfarmer, I once saw some valve springs that had been too hot and they wouldn't close the valves, and the engine did not run good at all. Could be that your springs have been too hot. The correct spring tension is very important especially at high RPM. Maybe wrong springs have been installed some where along the way. Those are two possibilities.---Derrol in Texas---

John Saeli · Mar 31, 2012

The 124 used the same VT3232 spring for the int. & Exh. Valves. The 400B engine used the VT3232 Spring for the Int. only. The 400B used a G10004 Spring for the Exh.. Springs are cheap. I use a fitting that threads into the spark plug hole, so I can connect the air hose to it, & use compressed air to hold the valves closed, & the springs can be changed without removing the head.

shinnery · Apr 1, 2012

It you don't have air pressure available you can pull out the spark plugs and push a loooong rope down in the cylinder to fill it up and hold the valves up. Bryce
:roll:

case 400 gase 251 valve springs

windhillfarmer

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D G Wells

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John Saeli

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shinnery

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