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jeffrey-j-paris(at)excite
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 Posted: Sun May 08, 2011 9:04 am Post subject: Question |
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Jabiru Guru's,
Quick question? Could a loose spark plug lead cause a overall drop of say 400-500-RPM at full throttle? Thanks for you time and consideration.
Jeff Paris
Jabiru Powered CH601XLB and Europa Classic
[quote][b]
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Sun May 08, 2011 9:36 am Post subject: Question |
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It doesn't seem to me that it would. After all, you have two separate
mags firing the engine, for redundancies' sake. Now if it were a
*coil* lead, that might be another story.
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062
Prince prop (64 x 30, P-tip)
Electroair direct-fire ignition system
Rotec TBI-40 injection (sleeved to 36mm)
Status: flying with "Ramcharger" intake manifold...1103 hrs (since
3-27-2006)
On May 8, 2011, at 11:31 AM, Jeffrey J Paris wrote:
| Quote: | Jabiru Guru's,
Quick question? Could a loose spark plug lead cause a overall drop
of say 400-500-RPM at full throttle? Thanks for you time and
consideration.
Jeff Paris
Jabiru Powered CH601XLB and Europa Classic
www.matronics.com/contribution _-
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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
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aerobiz1(at)gmail.com
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| Posted: Sun May 08, 2011 11:54 am Post subject: Question |
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Jeff,
Unlikely in my opinion, with dual ignition, and even then, the lead would need to be completely off.....
Martin
On Mon, May 9, 2011 at 1:31 AM, Jeffrey J Paris <jeffrey-j-paris(at)excite.com (jeffrey-j-paris(at)excite.com)> wrote:
[quote] Jabiru Guru's,
Quick question? Could a loose spark plug lead cause a overall drop of say 400-500-RPM at full throttle? Thanks for you time and consideration.
Jeff Paris
Jabiru Powered CH601XLB and Europa Classic
| Quote: |
ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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[b]
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leubanks(at)sunflower.com
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| Posted: Sun May 08, 2011 2:20 pm Post subject: Question |
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Sounds more like a fuel or air problem. Check to see if you have full volume on both at full throttle. Dirty air filter, collapsing air duct or partial plugged fuel filter or main jet could do this.
Larry
[quote] ---
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dons701
Joined: 22 May 2009
Posts: 80
Location: Hershey, PA
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| Posted: Mon May 09, 2011 12:11 pm Post subject: Re: Question |
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Sometimes you have to ask yourself what changed since the last time the engine ran to full RPM. Did it set for awhile? Or, did it run good just yesterday? Don B...
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Zenith 701 #76120
Jabiru 2200A #2456 95 hours
Sensenich Wood 64-PJ-36 Prop |
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MHerder
Joined: 11 Feb 2008
Posts: 143
Location: Fort Worth TX
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| Posted: Tue May 10, 2011 9:07 am Post subject: Re: Question |
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My 3300 was running about 2-300 rpms lower after I tilted my carb to better the mixture distribution. This was surprising to me to say the least.
I later found that the throttle was not moving all the way open because I rotated the carb far enought that the arm was getting stopped by the distributor cap. Moral to the story is that after EVERY change of somehting... no matter how small, operation of all components must be checked and double checked. Non issue in this case, but never take for granted that a small "tweak" or change could have unintended consequences.
All I did was rotate the carb a few degrees.
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Zodiac 601 HD
Jabiru 3300
Wood Sensinich 64x47
Finally Flying |
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don.honabach(at)pcperfect
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| Posted: Tue May 10, 2011 9:45 am Post subject: Question |
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Thanks for posting -- this was on my backburner to try (my temps are good, but I wanted to see if I could get to them to be better by 'balancing the carb').
Don
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MHerder
Joined: 11 Feb 2008
Posts: 143
Location: Fort Worth TX
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| Posted: Tue May 10, 2011 9:52 am Post subject: Re: Question |
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Please report back on that... It would make me feel better to know someone else did it too.
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Zodiac 601 HD
Jabiru 3300
Wood Sensinich 64x47
Finally Flying |
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bfisher6858(at)msn.com
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| Posted: Tue May 10, 2011 4:38 pm Post subject: Question |
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On May 10, 2011, at 10:43 AM, Don Honabach wrote:
[quote]
Thanks for posting -- this was on my backburner to try (my temps are good, but I wanted to see if I could get to them to be better by 'balancing the carb').
Don
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