[Shotimes] timing sprockets not fitting crank

[Robert Bruce]

My sprocket was nice and snug, just like it should be.  Too loose and you
will later have GFCC (George Fourchy Crank Cancer).  As I recall, the key
fits either direction and the timing belt gear should be installed with the
timing mark facing away from the block.

Robert Bruce
92 w/ a mod or two 

 

-----Original Message-----
From: Ian Fisher [mailto:dataflash@yahoo.com] 
Sent: Saturday, September 03, 2005 8:42 PM
To: van Oss; TechSHO@topica.com; shotimes@autox.team.net
Subject: Re: [Shotimes] timing sprockets not fitting crank

Interesting. I didn't really get a good chance to
examine the entire key. I do know that it tapers up
away from the crank snout but is level across the top.
I'm not sure if that description is clear. I'll have
to snap a pic tomorrow.

I seem to recall that Leigh Smith's sprocket slid on
and off his crank snout very easily.  I want to say
that Bob Bruce's did as well. Neither would wobble
back and forth as the key kept it securely in place.

I'll look at it again tomorrow when I have daylight
and report back. Ditto on the timing cover screws; I
used them before when I needed to remove this
sprocket. It was so snug that I ended up bending them
too.  By the way, what exactly keeps the key in place
when the sprocket isn't attached? On that same line of
thought, the key isn't removed to install the sprocket
and then reinstalled, correct?

Ian
--- van Oss <vanOss@centurytel.net> wrote:

> Clearly, your crank is too big.
> VO
> 
> p.s. This pulley shouldn't *slide" on. You should
> expect to have to tap it 
> on and I'd use lubricant.  (Those who know me need
> no explanation.)  It's 
> supposed to be a tight fit, else prone to cancer. 
> As I look at the key, I 
> don't see one end being different from the other, so
> your concern about a 
> misplaced key baffles me.  I'd use a BFH and the
> same large socket you use 
> when removing the retaining nut at the outer end of
> a draive shaft.  To 
> facilitate removal of the timing-belt pulley, I have
> a piece of 1/8'' by 
> 1/2'' by 3'' steel, drilled with two holes spaced
> per the threaded holes in 
> the timing pulley.  A sequence of longer, then
> shorter spare screws do the 
> trick (from parting too many SHOs, usually timing
> covers).
> 
> VO
> 
> ----- Original Message ----- 
> I've got 3 timing belt sprockets and none seem to
> slide onto my crank.
> Ian
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