Anyone know how to get this cheek apart
- Thread starter lunaseas
- Start date
It looks like that keeper plate is what holds the axle in lace. Looks like there was a screw in the little hole in the plate?.. The other end of the axle is probably in a blind hole so the pin cannot be pushed out from the back side.. I am afraid that it is the classic stainless pin in an aluminum casting that has married .. grabbing the keeper and twisting miight work.. some PB Blaster under the keeper might work along with some tapping.. Aluminum expands just a little more than stainless so heating the aluminum around the keeper carefully and putting ice on the keeper may break the bond..
kloudie just gave several great options..might I also suggest using a vise. The pin is most likely pressed in. to reverse that you can hammer with a drift pin or squeeze in a vise. this only works if there is access to the pin on both sides. If so, you'll need something slightly smaller than the pin head.. I like stainless ballbearings. I tape the bearing centered on the pin. Place in a vise with socket over the other end...crank away...
First thought is keeper plate is actually a fancy SS reverse threaded nut for the SS axel that must be kept stationary by the locking screw that is missing. Did you try to rotate the plate both clockwise and counterclockwise? a picture of the bottom of the block might generate other clues.
Did you try image search 'double cheek block with aluminum cheek' using a picture with the block sitting on a blank background such as a sheet of typing paper to identify the original mfg. to get replacement parts or disassembly instructions?
Did you try image search 'double cheek block with aluminum cheek' using a picture with the block sitting on a blank background such as a sheet of typing paper to identify the original mfg. to get replacement parts or disassembly instructions?
jssailem
SBO Weather and Forecasting Forum Jim & John
- Oct 22, 2014
- 22,286
I agree with @kloudie1 and @LloydB . With the screw removed you may be able to rotate the keeper plate . Looks like someone has tried to beat the cover plate. I would remove the screw and use a penetrating oil on the fitting as the probability of corrosion is high.
The SS threads maybe galled.
Are the sheaves rotating or are they frozen?
The SS threads maybe galled.
Stainless steel galling, or cold welding, is a form of severe adhesive wear. Although stainless steels show a tendency to gall under certain conditions, galling can occur with any material. This form of wear occurs as a result of excessive friction between two moving surfaces, which under particular conditions can disrupt the oxide layers and permit metal-to-metal contact.
Are the sheaves rotating or are they frozen?
Also . Corrosion. So heavy I used CLR and coke
To dislodge it
