Yes but why hasn't the bush worn itself. It is much softer material than the
shaft. I would suggest that the shaft has always been oval possibly even
predating Mark's installation and that the oil pump may not be the reason.
Still wise to check it out though. Good luck Mark.
John Martindale
29 Jane Circuit
TOORMINA NSW 2452
AUSTRALIA
phone: 61 2 66584767 (H)
61 2 66869075 (W)
mobile: 0403 049990
email: johnja...@optusnet.com.au
web: www.members.optusnet.com.au/johnjanet/Martindale.htm
----- Original Message -----
From: "Eric Kelsheimer" <erickelshei...@hughes.net>
To: "Mark Jones" <flyk...@wi.rr.com>; "KRnet" <kr...@mylist.net>
Sent: Saturday, December 02, 2006 3:03 AM
Subject: Re: KR> Ignition problems / Hiccup
> Mark Im glad to hear that your problem has been found!!!
> Looks
> like I hit the nail on the head with that one......:)
> ----- Original Message -----
> From: "Mark Jones" <flyk...@wi.rr.com>
> To: "KRnet" <kr...@mylist.net>; "Corvair Net" <corvaircr...@mylist.net>
> Sent: Friday, December 01, 2006 10:14 AM
> Subject: KR> Ignition problems / Hiccup
>
>
>> Well guys, the smoking gun on my ignition problems has been found. Last
>> weekend, at the request of William Wynne, I removed my distributor and
>> shipped it to him next day air for him to test my distributor on his
>> machine. What was found was that the shaft was worn extensively at the
>> upper bushing. It was actually oval shaped at that spot. The bushing
>> itself showed no signs of wear. This allowed the shaft to wobble as it
>> turned which would create the hiccup in my ignition when that sweet spot
>> appeared. This distributor had approximately 150 run time hours since I
>> built the engine with 134 of those being actual flight time hours. The
>> cause for this wear is speculated to be an inappropriately clearanced
>> high
>> volume oil pump which I installed on my engine. After having in-depth
>> conversations with William and William with Gus Warren, we have decided
>> that I will remove the rear distributor housing and also send that to
>> William for analysis. William and Gus feel that I have most likely worn
>>
>> the aluminum housing where the lower shaft rides, which will also allow
>> even more wobble of the shaft.
>>
>>
>>
>> Mark Jones (N886MJ)
>> Wales, WI
>> Visit my web site: www.flykr2s.com
>> E-mail: flyk...@wi.rr.com
>> _______________________________________
>> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
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>> please see other KRnet info at http://www.krnet.org/info.html
>>
>
>
>
> _______________________________________
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html
