The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Crossrodes on July 12, 2010, 06:42:36 PM

Title: Installing Camshaft Timing Sprocket
Post by: Crossrodes on July 12, 2010, 06:42:36 PM

The Clymers manual says to tap the sprocket back on after oiling the end of the camshaft and sprocket and by supporting the other end of the cam with a heavy hammer so as not to damage the housing.

I left the woodruff key in place to use if for alignment ( I have done this type of installation many times) but I have been working on it for a couple of hours now and have not got the sprocket seated yet.  Is there any special secret (like heating the sprocket) that others have used to get the sprocket installed?

Title: Re: Installing Camshaft Timing Sprocket
Post by: nhmaf on July 12, 2010, 10:10:58 PM

I think that Monte may have had to replace his sprocket on one of his bikes - he may chime in soon.   I don't know if I'd leave the woodruff key on there while trying to do it, but I admit I've very little experience on replacing this sprocket.   I'll have to check some of my other books but I don't see why it would hurt to put the sprocket in a warm oven (~250F) first - 'cept that you'd better be careful handling it while fixing it onto the shaft or burn your fingers.

Title: Re: Installing Camshaft Timing Sprocket
Post by: montmil on July 13, 2010, 07:24:34 AM

Sorry, guys, but I've not yet yanked a timing chain sprocket. I do recall my research turned up suggestions regarding heating the gear prior to a leather-gloved refit. Kitchen oven or propane torch seemed to be the consensus.

Monte

Title: Re: Installing Camshaft Timing Sprocket
Post by: Crossrodes on July 13, 2010, 06:39:53 PM

Well I've had no time today to play with the bike so hopefully tomorrow, while wifey is working, I'll heat up the oven.  I'll let you know how it works.

Title: Re: Installing Camshaft Timing Sprocket
Post by: montmil on July 14, 2010, 07:34:36 AM

Quote

...while wifey is working, I'll heat up the oven. I'll let you know how it works.

Oh, man, you're brave! Go buy a strong scented candle to burn while you're messing with your sweeties oven. Any oil on that gear and I'm thinking you're the one's maybe gonna get burned.
 
[smiley=behead.gif] This was me after I used the oven to help disassemble an old car master cylinder.

Monte

Title: Re: Installing Camshaft Timing Sprocket
Post by: Crossrodes on July 14, 2010, 03:03:43 PM

OK it worked.  I tried various temps and found that 25 minutes in a 325 degree oven worked.

Now I think I'll go out and buy some flowers... There's a burnt oil odour in the house.  All windows are open and the exhaust fan is on.  :o