Quote:
HH56 wrote:
Looks like a typical very complete kit and the only thing missing is the same that is not included on any kits -- the conical spring for the compensator valve and any rubber parts for the vacuum power piston. Hopefully you will not need either.
One thing to check carefully is the condition of the sealing surface in the hydraulic section of the pot metal casting. If the seal is new and the piston is new but there is corrosion or pits in the seal seat area of the casting, not much will be gained.
Not following at all the comment about the poppet valve and wider part in the reservoir end vs later units with a poppet in the pressure side.
I will make note of that first paragraph-- that the conical springs and "rubber parts" for the vacuum power piston need to be scavanged from the old unit.
Does anyone have pics of these that I can show my mechanic?
About the
"Poppet" I'm just referring to the cutaway drawing of a '55-'56 that shows a widened end on the MC side of the piston, which is not on the '54 and earlier design. In those, the end of the piston, if I recall correctly, is not widened like that.
Regarding the
"sealing surface" of the casting, this is exactly what Rich Hlady at Midwest Power Products recommends
"re-sleeved" with stainless if it is pitted. They do that, he said, on about 50 percent of the units they rebuild. Sorry if I did not make this clear in earlier posts, but I wasn't quite sure what part was "re-sleeved". Now we all know!
Thank you all for your input. I am ordering the complete kit, with piston ("plunger") boot and grease. BTW, I have never hear a mention of this grease being used in the vacuum section in a rebuild. Anyone know where this would be applied?
I'm ordering the kit and, for the record, I plan to have my mechanic carefully clean the relief port, make sure the gasket does not cover it, and see what happens.
Many thanks to all for your feedback.
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