Dimension for cam shaft timing gear puller

Dimension for cam shaft timing gear puller

Joined: September 8th, 2016, 7:46 pm

June 9th, 2017, 6:43 pm #1

Anyone knowing the outer threads needed to make a proper cam shaft timing gear puller for the early sixes in the start of the great 1930s? I am talking about the bakelite cog wheel. It show up internal threads just outside the cam shaft axle end.

I will not risk damaging the bakelite wheel.

Appreciate any response. Thanks!

Quote
Like
Share

Joined: October 29th, 2014, 2:42 am

June 10th, 2017, 3:37 am #2

Robert it may serve you best to find another camshaft gear these gears do fail and it would be better to find out now if it will fail. Take a drill and make a hole for a 3/8 tap. tap all the way through two of the spokes opposite each other and use a bolt puller the get the gear off the shaft. There is a chance you will damage the gear but with any other method you will damage the gear for sure. That is unless you have a floor press, then you chance damaging the threads in the cam shaft or the retainer.
Quote
Like
Share

Joined: September 8th, 2016, 7:46 pm

June 10th, 2017, 7:01 am #3

Your suggestion may be the best solution overall. Much easier to tap and pull, than making a custom threaded puller. My concern was that the bakelite wheel are not possible to replace...therefore trying not to damage it. I know of the general recommendation is to replace these. Until I am certain to have a replacement, I am taking well care of the one I have, even if it is old

Quote
Like
Share

Joined: October 20th, 2014, 2:53 am

June 10th, 2017, 4:06 pm #4

Robert it may serve you best to find another camshaft gear these gears do fail and it would be better to find out now if it will fail. Take a drill and make a hole for a 3/8 tap. tap all the way through two of the spokes opposite each other and use a bolt puller the get the gear off the shaft. There is a chance you will damage the gear but with any other method you will damage the gear for sure. That is unless you have a floor press, then you chance damaging the threads in the cam shaft or the retainer.
Agree with Ted! The gear does not need to be removed in order to remove the camshaft. Unless the cam needs replacing/regrinding I would not separate the gear from the cam.
Quote
Like
Share

Joined: September 8th, 2016, 7:46 pm

June 10th, 2017, 4:56 pm #5

I am not replacing the cam, but if a new gear is available, it may be sound to remove the old one. Until then, I can just keep it on the camshaft and remove camshaft as one unit
Quote
Like
Share

Joined: October 29th, 2014, 2:42 am

June 11th, 2017, 2:04 am #6

Your suggestion may be the best solution overall. Much easier to tap and pull, than making a custom threaded puller. My concern was that the bakelite wheel are not possible to replace...therefore trying not to damage it. I know of the general recommendation is to replace these. Until I am certain to have a replacement, I am taking well care of the one I have, even if it is old
I have more old ones and may even have a new old stock bakelite gear.
Quote
Like
Share