Waukesha Ricardo Heads require between one half and two thirds of the spark advance required with the old heads. DO NOT GIVE THEM MORE.
Place this stop on the spark control, or set spark lever so the driver can not use the same advance as with the old heads. A little care to this point will insure satisfaction.
Shellac gasket carefully to the face of the cylinder head before placing head on motor. Center the gasket carefully with relation to the bolt holes and let it dry thoroughly. Apply thin coat of grease to the bottom face of gasket after it has been shellacked to the cylinder head.
Clean carbon and dirt out of bottoms of holes for the cylinder head cap screws in the cylinder block. These holes are very shallow and the cylinder head screws are apt to strike the bottom of the holes. This prevents clamping the head firmly and will result in heating due to explosion pressure forcing hot gasses into the cooling water.
Note: This information is from a NOS tag that is attached to his NOS head in the original box that belongs to a friend of mine.
BTW, the head I purchased a week ago is on its way back to the guy I purchased it from. The head had a crack on top from the front to the back.
thanks for the interesting historical info
sorry to hear about the bad head..was this the "expensive" head I read about on another thread?
just did a little research...looks like this was the expensive one...BUMMER
At least the seller, Jeff Randolph, said he stands behind everything he sells and will make it right. No telling who will bear the cost of shipping. If Tim Morsher was right about the Rajo head that he looked at before Mr. Randolph bought the pile. (said it was cracked and/or repaired poorly), Mr. Randolph may have bought a "Pig in the Poke".
Very interesting info from that tag!
Thank you for posting it.
Howdy Larry, Would it be possible to share A photo of that original tag here for those of us who have a Ricardo head?
Larry, I second Jays request for a photo of the tag. I have never seen a tag, and it would be nice to have a picture of one to go with my head.
Larry, If you take a photo of the tag, could you also take some photos of the NOS head and the original box. My Waukesha Ricardo head is painted red with an orange tinge. It would be interesting to see what the original color is on the NOS head.
Jim: The owner has already put it away, but you are correct. The head was painted a kind of orange color, sorta like Rustoleum primer. The tag was red, and rather hard to read.