Wisconsin VH4D Valve rotators
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Wisconsin VH4D Valve rotators
Have a wisconsin vh4d in and the exhaust valve rotators are shot due to the top end being flooded with water. New rotators for it are pricey and i see that the VH4 variant does not use the rotators which will require me to use the taller springs and keeper retainers. Anyone have a opinion about not using the rotators on this engine? Not sure if this engine is known for wanting to create hot spots and deposits on the valve. The valve and seat are stellite.
Re: Wisconsin VH4D Valve rotators
My partner is the regional Wisconsin expert. He may have the valve rotators. Would you like me to ask him?
jack vines
jack vines
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
Re: Wisconsin VH4D Valve rotators
Yes please do. If I don't need to use them that would be great but if it is better to than that would be good if he happens to have them. Thanks a bunch
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Re: Wisconsin VH4D Valve rotators
What size and height are the springs?
Might the rotators from a late BBC work?
Might the rotators from a late BBC work?
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Re: Wisconsin VH4D Valve rotators
Yes, because of the switch to unleaded fuels, the rotators were eliminated. You can change to later springs and retainers with no problems.
Jack Vines
Studebaker-Packard V8 Limited
Obsolete Engineering
Studebaker-Packard V8 Limited
Obsolete Engineering
Re: Wisconsin VH4D Valve rotators
They don't do anything as far as giving heat a place to go. They just let the valve rotate to keep the seating area of the face and valve clean of carbon and also keeps the valve from developing a hot spot by letting the face of the valve contact different areas of the seat. But as Packard stated with cleaner burning fuels today those problems are not as much of concern anymore.allencr267 wrote: ↑Wed May 24, 2023 9:39 am Aren't these of more benefit as a heat-sink then the rotation?
Re: Wisconsin VH4D Valve rotators
Could you make or have some rotator "eliminators" made? Think big block Chevy.