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Motorcycle Events, Rallies, Rides, etc... / Cross country Chase
« Last post by franknsr on June 23, 2019, 08:26:43 am »
Well, this sounds interesting. Bikes have to be 1930 to 1948 so there could be an X or a Henderson in the group.
Technical Resource Discussion / 1956 Jenny
« Last post by Berlin Bob on June 22, 2019, 08:34:39 am »
1956 Jenny

Have my Jenny up on the block ,all updates done with new tires : tranny,fan assist oil cooler,oil p/u tube,scavange busshing,stainless fasteners,Atlantic reline on tank .... # 1956 ..first Jenny off the line  has  8600 miles on her you
do the shipping .... 1000.  deposit thru paypal  balance due within  10 days ...also have it listed on Cycle Trader

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Motorcycle Events, Rallies, Rides, etc... / R.O.T. Rally 2019
« Last post by Tx-X-Man on June 14, 2019, 10:12:34 pm »
Any fellow Super X riders in Austin this weekend?
Technical Resource Discussion / EH Varsity Jacket NOS
« Last post by profwhb on June 09, 2019, 05:39:45 pm »
EH Varsity Jacket NOS

This is a size large EH Varsity Jacket which I purchased form a Dealership.  It has been living in a storage bag in a cedar chest since it did not fit me right.  It is new old stock and waiting for a new owner.  I got a great deal on it when purchased a few years ago and would like to just recover what I paid.   

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Technical Resource Discussion / Re: Starter Sprag drive issue
« Last post by blackheart on June 09, 2019, 07:49:58 am »

What I found was I caused this calamity.  When I retrofitted the car with the leaded bronze bushing I made the bushing the full width of the bore.

While I still had clearance when the engine was cold,  I believe when it got good and hot the aluminum case, expanding double that of the steel crank pushed the started gear on the crank hard up against the splined adapter.   This in turn caused rotation and I think the heat generated got things going south and with heat clearance got tighter and well we all know the story from there.   Ended up fusing the bronze main to the crank, it spun in the case again. When locked solid the starter gear spun the starter to destruction.  Sprage unit is fine.

I just failed to analyze the design and allow for crank endplay pkus differential expansion plus adequate running end play for the starter gear.  Never checked any of it.  I did note on the inside of the starter gear the factory painted on with paint pen -0.003" which i'm not sure was referring to but it was obvious they were checking something.   My bike at 307 should have the early crank and dampener, but it actually has the latter design which was probably put in as a test mule piece since this was a demonstration bike.  It was the 14th bike assembled.

Now for some further information.  On the spare engine I have,  #204, I had torn it down to preserve.  In doing so I noted it has the earlier crank and dampener. But I also,  for the first time note some peculiarities with the starter gear set up.  The machined boss on the outside of the case is larger than the boss on the starter sprage allowing it to bump up against either the bearing shell or crank.  The shell is set flush on the inside of the case and sub surface or inset on the outside to allow for adequate endplay.  I never could see this on 307 the first time as recall, the left side main smoked and had spun in the case. What I noted however,  was even though 204 had 27 miles on it as received the starter gear boss was scuffed a bit on the inside inner corner. This says it was in contact with the crankshaft journal. Not good.  Not saying it would survive but what is disturbing to me the factory allowance of gear to contact the crank. It should bear up against the case itself and never touch the crank or bearing shell. As designed it can contact the shell and bearing dependent upon which is closest based upon crank position and case expansion. 

I'm planning on pinning the stock bearing shells in 204 and reassembling. Then I will probably modify starter gear and bushing to accommodate all motion and not get bound up.

Makes me wonder if the original 307 main bearing failure wasn't caused by gear rotation when case got good and hot.
Technical Resource Discussion / Re: Starter Sprag drive issue
« Last post by wytfut on June 08, 2019, 05:17:33 pm »
Wow Rich...

Just got back from vacation..

I'm also very interested in what you find.
Keep us up to speed
Technical Resource Discussion / Re: Starter Sprag drive issue
« Last post by Donkey Hotey on June 06, 2019, 04:55:00 am »

I have no advice for you but Iíll be very interested in what you find. The starter clutch seemingly working correctly obviously goes against what happened to the starter.

On other bikes those clutches usually fail the other way: wonít spin the engine and make all kinds of awful noises as they slip & grab.
Technical Resource Discussion / Starter Sprag drive issue
« Last post by blackheart on June 02, 2019, 10:41:52 am »
Has anyone had issue with the starter drive locking up and/or malfunctioning?

My bike has been running well since the rebuild of lower end.  Recall my left side main bearing spun in case and smoked bearing over the course of more than 8000 miles.  I rebored case and used a high leaded bronze in lieu of factory bushing as I don't need to pin the bronze.

Monday I was going to run about 250 miles and 60 miles into the trip the bike loaded up, started dragging down, then locked up.  Turns out the starter motor basically exploded inside (commutator came apart). This tells me the starter drive locked to crank and spun starter at extremely high rpm.

Pulling starter the drive feels great,  spinning freely in one direction and locks in the other.  I will be pulling primary off and seeing if the drive gear on crank has a damaged bushing which is what had to fuse to crank.  Recall all this stuff is pressure fed from left side main bearing. What baffles me is this oil feed was shut off most of the time when the OEM bushing had spun in case, but things survived except for the OEM bushing.

I'll post updates.  Found a starter on Ebay luckily.   

Non-Technical Discussion / Re: Fate of the Yahoo message boards?
« Last post by wytfut on May 31, 2019, 08:15:58 am »
EH improvements and Graphics/photos I'm pretty sure were Simpsons creations. I believe his first name was John, and he hid mostly under his Wifes email address.
Good guy, as I had communicated a lot with him. Lives in florida, and had medical issues due to Vietnam?
He also built the red hot chilli pepper, ... which was tagented "redwood"

anyway..... hes been out of the picture many years.
Those 2 sites have any good Data that can be salvaged?

In the mean time, I'll do a generic facebook announcement. maybe we'll get somebody interested in helping...

Tomorrow I leave for our annual family trip to colorado, and there is no cell service availible where we go, just in case you don't hear from me in any extended period.....
Non-Technical Discussion / Re: Fate of the Yahoo message boards?
« Last post by Donkey Hotey on May 30, 2019, 09:20:47 pm »
Trying to keep this as public as possible, these are the non-club related Super X boards that I could find. When I say non-club, there were a few that were set up by regional owners as general chit-chat discussion areas, separate from the tech info in the others.

Man, it's hard to believe there were so many. Remember all the in-fighting back in those days?

I believe Jumper owned these:

These, I don't know:

I got a reply from Yahoo support and the process will begin shortly for the Resource Board. Apparently, it involves posting a public poll and voting by the members. Now if we can just get the privilege turned on to post polls.
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