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Author Topic: Twin Engine Panther from England  (Read 46244 times)
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SUMO
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« Reply #255 on: December 01, 2012, 03:30:51 PM »

thank you. much appreciated. always good to hear from people that have done the twin engine thing rather than regurgitated Internet wisdom...

so you downgraded from the panther at some stage then to a Vincent  grin
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JimL
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« Reply #256 on: December 01, 2012, 04:48:07 PM »

Good idea to close and cover.  The inspectors will look at it as "where could a hand or foot get into, during a crash".  I got sent back from tech in 2009, because I hadnt covered the side of my countershaft area on my chain drive conversion.

Here is a pic of the area that was unacceptable.  I had to go to the grocery and buy a heavy cooking pan to pound into shape for a cover.  That was accepted with some additional suggestions.

http://www.landracing.com/forum/index.php/topic,4683.75.html

They also told me to cover the side of the bottom chain run area, near my footpeg, for the next year.  I never ran this chassis again after the 2 passes in 2009.  My next project followed their recommendations.

Hope this helps you be better prepared than I was.
JimL
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Kansas Bad Man
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« Reply #257 on: December 04, 2012, 11:37:36 AM »


Yeah, Sumo, I had to down grade due to the fact that it was difficult to find a Panther in running condition.


               #:^)#
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SUMO
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« Reply #258 on: December 05, 2012, 09:47:15 AM »


Yeah, Sumo, I had to down grade due to the fact that it was difficult to find a Panther in running condition.


               #:^)#

ill do you a favour - ill swap you a running panther complete bike for a vincent motor, i have a couple spare  grin
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Old Scrambler
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« Reply #259 on: December 05, 2012, 06:10:50 PM »

That would make the DEAL OF THE CENTURY rolleyes rolleyes
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2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2016 AMA Record - 750cc M-CG HONDA CB750 sohc - 130.7 mph
2016 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 137.7 mph
Chasis Builder / Tuner: Dave Murre
panic
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« Reply #260 on: December 06, 2012, 01:46:28 PM »

What affects the degree of offset between the front and rear engines?

IIRC someone running 2 big singles 50 years ago had a clutch between them (the reason escapes me), and he reported that the engines would re-phase themselves by slipping the clutch until they fired simultaneously.
« Last Edit: December 06, 2012, 01:48:26 PM by panic » Logged
grumm441
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« Reply #261 on: December 07, 2012, 05:02:13 PM »

I wonder if a fluid coupling like a torque convertor would  work
I'm guessing it would be much harder with singles and twins than with the current inline fours
G
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Chief Motorcycle Steward Dry Lakes Racers Australia Inc
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I build it, Goggles tries his hardest to break it
SUMO
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« Reply #262 on: April 02, 2013, 05:50:27 AM »


 things are moving onwards, albeit slowly

i have lost my job recently so its not progressing at speed but its getting there

converted a pair of mags to electronic ignition [thorspark units]




started to make some semblance of comfort



and the big thing: got the drivetrain buttoned up, just need to make a correct size idler pulley and im golden follows the most boring youtube vid in the world but it means a lot to me on this build  grin...

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Old Scrambler
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« Reply #263 on: April 02, 2013, 08:15:14 PM »

Sometimes no job means time in the garage grin

My builder, Dave M., hooks a variable-speed electric motor to my Triumph Cub motor with a v-belt to a temporary pulley on the crank............its very cool to watch everything in slow-mo cool cool cool cool
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2011 AMA Record - 250cc M-PG TRIUMPH Tiger Cub - 82.5 mph
2013 AMA Record - 250cc MPS-PG TRIUMPH Tiger Cub - 88.7 mph
2016 AMA Record - 750cc M-CG HONDA CB750 sohc - 130.7 mph
2016 AMA Record - 750cc MPS-CG HONDA CB750 sohc - 137.7 mph
Chasis Builder / Tuner: Dave Murre
rgdavid
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« Reply #264 on: January 31, 2014, 07:37:49 AM »

i don't beleive it, a panther speed bike,
speed and the make Panther are not usually linked together grin
my dad's got a panther, i grew up being taken about in the sidecar in the'70s,i can't remember dad not having the panther,
he's still got it, we love the bike allthough it hasnt been used for many a year and oneday we hope to restore it,
i'm sending the link to dad, this will make him happy,

I used to live not far from you at Berkhamsted herts,(i'm now in france),use to love the leighton buzzard road (starting from hemel) on my old rg500,
great to see someone do a project around this bike,
best of luck, great project, David  smiley
« Last Edit: January 31, 2014, 07:43:21 AM by rgdavid » Logged
Scottie J
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« Reply #265 on: January 31, 2014, 12:28:28 PM »

The Thorspark ignitions are great!  I have one on my '58 RE/Indian Trailblazer twin.  The only issue I had with mine was after about a month, the mounting screws that hold the trigger to the mounting plate came undone and caused a bad misfire.  Threw a little blue Loctite on both screws and no problems since.  Starts on the first kick almost every time.    smiley

Scottie
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