Thanks Ron. A few minutes after I posted it dawned on me that there
wouldn't be a crank gear that divided by 2 with the 45 tooth cam gear. That
45 teeth being based on the "8 degrees" I found on the internet. That said,
42 teeth would make a slipped cam tooth even worse at 8.57 degrees. Most
offset keys, multi key gears, offset pins etc. only go about 4 degrees. So,
I would think those 4 degrees of variability would near the upper limit for
most cams.
I'm still putting my money on a slipping distributor gear exacerbated by a
heavy load from cold oil on start up.
----- Original Message -----
From: " Ron Fraser" <rfraser@bluefrog.com>
To: "'Thomas Witt'" <atwittsend@verizon.net>; <tigers@autox.team.net>
Sent: Monday, March 26, 2012 12:45 PM
Subject: RE: [Tigers] Timing deviates - advice needed
> Tom
>
> Cam gear - 42 teeth
> Crank gear - 21 teeth
>
> Cam to distributor gear - 15
> Distributor gear - 15
>
> Ron Fraser
>
> -----Original Message-----
> From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
> On Behalf Of Thomas Witt
> Sent: Monday, March 26, 2012 2:31 PM
> To: tigers@autox.team.net
> Subject: Re: [Tigers] Timing deviates - advice needed
>
>
>>>> How many slips of that can you have before you are snapping
>>>> valves?!<<<
>
> I had the same thought. You would think finding a tooth count on te SBF
> cam
> gear would be easy on the internet..., but all I could find was a
> reference
> to 8 degrees per tooth (which equates to 45 teeth). Still if he is
> resetting
>
> the timing, having the problem reoccur and resetting the timing again that
> would be 16 degrees at the cam - if teeth are slipping. At that point I
> don't think he would get it to 'run well again' like he has. It sure
> sounds
> like the distributor gear is spinning on the shaft. Given the load of cold
> oil at the pump spinning off the distributor it would give reason to it
> setting correctly and then shifting again on start up - later when cold.
> Tom
> _______________________________________________
>
> tigers@autox.team.net
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe:
> http://autox.team.net/mailman/options/tigers/rfraser@bluefrog.com
>
>
>
>
> -----
> No virus found in this message.
> Checked by AVG - www.avg.com
> Version: 2012.0.1913 / Virus Database: 2114/4895 - Release Date: 03/26/12
_______________________________________________
tigers@autox.team.net
Donate: http://www.team.net/donate.html
Archive: http://www.team.net/archive
Forums: http://www.team.net/forums
Unsubscribe:
http://autox.team.net/mailman/options/tigers/tigers-archive@autox.team.net
|