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Author Topic: camshaft rotor removal 73 RD350  (Read 2177 times)

Offline DTW350

  • Posts: 21
camshaft rotor removal 73 RD350
« on: Feb 20, 2017, 19:06:52 »
Does anyone care to enlighten me on how to remove the rotor from an rd350 camshaft? I have the bolt securing to camshaft removed, however the rotor will not budge. Many have said it should just come off with ease but I have yet to see this occur. Do I need a puller?
« Last Edit: Feb 20, 2017, 19:11:08 by DTW350 »

Offline Shoeman

  • Posts: 96
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Re: camshaft rotor removal 73 RD350
« Reply #1 on: Feb 20, 2017, 19:37:23 »
Camshaft ???  It's a two stroke!    But seriously, you can use a bolt to do it.  One of the motor mount bolts does the trick if I recall. Thread it in while holding the crank still and it will pop off.  Or buy a special tool but you don't need to. 
I like cilp-ons, clubman's and superbike bars depending on the bike.  And rear-sets.

Offline DTW350

  • Posts: 21
Re: camshaft rotor removal 73 RD350
« Reply #2 on: Feb 20, 2017, 19:44:30 »
Ha!!! I did say camshaft!! Sorry, working on an auto as well. :o. At any rate, thanks, I see the threading in the rotor now. I appreciate the response.

Offline Sav0r

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Re: camshaft rotor removal 73 RD350
« Reply #3 on: Feb 20, 2017, 21:24:20 »
I think it's m10x1.5. If you hit it with and impact gun it will pop right off. Alternatively jam the primary with something and turn the bolt.
Sav0r the adventure.

Visit www.chrislivengood.net to get more information on my RD350 dubbed Mia Wallace as well as my other projects and snafus.

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Offline clem

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Re: camshaft rotor removal 73 RD350
« Reply #4 on: Feb 20, 2017, 22:03:34 »
I second Mr. Shoeman. Engine mount bolt. Do not use anything but a bolt or you will damage the coil on that there camshaft. ;)

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30

Offline DTW350

  • Posts: 21
Re: camshaft rotor removal 73 RD350
« Reply #5 on: Feb 21, 2017, 09:50:08 »
Ok, this morning I was able to remove the rotor from the crankshaft, as well as remove right side cover. Little back story, I purchased this a few weeks ago and the PO said it hadnt run in about 8 yrs. Before I started disassembly ,it had had good compression, clutch felt ok but my intention is to rebuild the bike to my liking and modify the look and aesthetics of the bike to a brat style. Upon pulling the heads off I noticed one piston had been replaced and the crank appears to have quite a bit of surface rust but moves without problems. With all that said, is it worth a complete teardown to completely go through and reseal and rebuild from zero, or is this surface rust crank just a minor issue. Note: there was not alot of oil in the crankcase, maybe a pint at best. What would you do in this situation?

Offline VonYinzer

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Re: camshaft rotor removal 73 RD350
« Reply #6 on: Feb 21, 2017, 10:50:58 »
Since you've come this far... Do a full bottom up rebuild. Replace ALL the seals and gaskets. A complete kit is under $100.

As far as the crank counterweights being rusty, as long as there isn't any severe pitting I'd just have them soda or vapor blasted. Afterwards, store them in oil so they don't rust again before installation.

You'll want to really inspect the cylinder walls and get an accurate bore measurement as well.
Like a river that don't know where it's flowin'
I took a wrong turn and just kept goin'

Offline DTW350

  • Posts: 21
Re: camshaft rotor removal 73 RD350
« Reply #7 on: Feb 21, 2017, 11:01:53 »
Right, I keep telling myself the same thing, Ive come this far...why not. Do you have a preferred source for a rebuild kit? Ive poked around a bit but nothing is sticking in my brain at the moment. Thanks.

Offline JSJamboree

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Re: camshaft rotor removal 73 RD350
« Reply #8 on: Feb 21, 2017, 11:45:23 »
Since you've come this far... Do a full bottom up rebuild. Replace ALL the seals and gaskets. A complete kit is under $100.


This isn't really an option... A 2stroke that hasn't been run in 8 years will have bad crank seals.. if you dont replace them as soon as you start riding you'll seize up your motor. I dont remember which brand I went with but I just nabbed them off ebay.  Tried to get something that was a brand though.

Offline clem

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Re: camshaft rotor removal 73 RD350
« Reply #9 on: Feb 21, 2017, 12:59:14 »
Check the side play and up and down on those connecting rods per the factory manual. I can send you a pdf of that manual if you need. Personally I would rebuild that crank. It is an area that once it is done you won't have to worry about it again unless you put an extreme amount of miles on it. At a minimum, if the rod play is in spec change the outer bearings on the crank and wire wheel the crank halves to get the rust and dirt off....second thought,  just have it rebuilt. There is no telling how bad the big end bearings are rusted and by the looks of that pic they are probably in bad shape. Peace of mind goes a long way.

Sent from my SAMSUNG-SM-G920A using DO THE TON mobile app

"After every war there are soldiers who refuse to surrender. To this day there are still thousands who cling to their 30+ year old motorcycles, thinking that the war is still on, refusing to concede that the four-strokes have won"

1972 DS7 http://www.dotheton.com/forum/index.php?topic=45886.msg505995#msg505995
1983 CB550sc bobber http://www.dotheton.com/forum/index.php?topic=30599.30