rocker spindle & wiring

E

Evan

Full member
Location
Texas
Tried heating in oven @ 212 degress feranheit not 100 celcius. & made home made tool. Rocker spindle won't budge. Bending washer. The threads on the screws go in about 1/3 inch...Is that right? We have Harbor Freight. Should I look for a tool they may have?
& then I want to do something about the wiring on 8787. I was told before that the Lucus switch is for the lights. ? (pic 4) I have the schematic in Green Bk. Will send more pics...I will have a lot questions.
 

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For some reason they seem to be binding. Generally the spindles can be rotated with a wide blade screwdriver or similar when the head is warmed, to align them if necessary. Try giving the spindle a careful tap on the end to dislodge it before you fit the extractor, alternatively give the end of the extractor a careful tap. I have never needed to heat a head up hotter than I could hold it in my bare hands, just with a heat (paint stripper) gun for removing or fitting cams or spindles.
 
And as has been pointed out before, the cam must be in position with both lobes pointing down so that the rocker arms are loose. Turn the cam over for doing the other side - I use two levers onto the sprocket with a piece of aluminium to protect the edge of the head, make sure that the open valves cannot contact the bench at any time.
 
Heating to 212 degrees if not hot enough. The head gets hotter than this when the bike is running. Put it back in the oven at 400 degrees and the spindles should slide out without needing a puller.

On a number of bikes where the spindles have been removed cold in the past it scrapes off a little bit of aluminum each time and on these bikes the spindles come out easy. Same for the camshafts. On one of my 750's which had never been touched since it left the factory, It had to be very, very hot to get it apart. Did not need a puller, just a bolt screwed in to the spindle and they came out with no effort.
 
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