Swapping Valve Springs In Truck

bullfrogjohnson

Big Girl!
Nov 20, 2006
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Locust, NC
Curious who has swapped valve springs in the truck? Does anyone make a tool like the source automotive tool for the 24v cummins? Does anyone know the spacing on the valves so I can make a tool?
 

bullfrogjohnson

Big Girl!
Nov 20, 2006
4,167
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39
Locust, NC
I want to make on like this but need the spacing and the diameter of the retainers.

9.jpg
 

jlawles2

Well-known member
Jan 28, 2010
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Danbury, TX
Why not make one that uses the rocker hold down bolt to compress the spring. You could probably get it made such that it clears the injector and uses the rocker retainer bolts to compress the valve springs. Using the glow plug hole and compressed air will keep the valves closed.

In the old days, one would use compressed air to hold the valve closed, and then use the rocker bolt and a "tool" with leverage from human muscle to compress the spring.
 

madmatt

New member
Apr 12, 2009
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Got this taken care of yet?? I'm curious to see what was fabbed up to do compress all four springs at once. I have the one for 24V Cummins and thought a similar design could be made to work on dmax's too. If you're still needing one though, I too have the Kent Moore that will do one at a time I'd be willing to loan you.