Hammer of the Gods - B50SS Project

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Sun Mar 31, 2019 5:40 pm

Have you read this page about blueprinting the gearbox?
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Tue Apr 02, 2019 10:03 pm

I've read that page about 100 times. I have the camplate spring set up with slight clearance from the shift fork. The gears have all been trial fitted with the correct thrust washer and the box shifts well. Final fitting should be tomorrow.

Still have to bend the tab over.
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Proper thrust washer and new used gear.
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I don't understand this adjustment. I see it moves the quadrant spring. What is the setting for this?
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Thanks
Scott
Last edited by Rookster on Wed Apr 03, 2019 11:23 am, edited 1 time in total.

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Wed Apr 03, 2019 10:46 am

Rookster wrote:What is the setting for this?
Kind of sets the lever in a neutral position so that when the cam plate is held by the detent spring, the forks of the gearchange are neither trying to move the cam plate up nor down.
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Re: Hammer of the Gods - B50SS Project

Post by midgie » Wed Apr 03, 2019 1:28 pm

You need the lobe on the cam facing the gearchange quadrant, the slot will be upright. Dab a bit of paint on the top of the adjuster screw to show you its in the correct position and not 180 degrees out,adjustment should then be no more than 90 degrees either way from the vertical position.

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Wed Apr 03, 2019 9:57 pm

Thanks for the help. Here is the setting I found where the plungers in the quadrant were not bearing on the camplate. They are really close in 1st and 4th gear but not touching. I don't see how you can adjust this properly without looking at where the plungers are in the camplate. There is almost no extra space in 1st or 4th. Any slight movement of the screw either way and it is bearing on the camplate. There is ample space in 2nd and 3rd though.

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Thu Apr 04, 2019 8:58 am

Which cam plate do you have? The other thing that affects everything is the selector forks, they seem to be made with a very wide tolerance. Nova make new forks, but they must be made of gold and studded with diamonds.
With the inner timing cover off, the gear change shaft is not supported very well and any slop in the hole (in the inner timing cover) just exacerbates the situation. The cam should be held by the detent spring, the forks just move the cam, not locate it....I think...
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Thu Apr 04, 2019 11:40 am

Those selector forks are pricey. Everything seems to shift ok with the gears dry mounted in the case. I am using a PES camplate. I am going to put it all back together and see how it works. If it still has shifting issues then maybe I will spring for the Nova bits. Here is a pic of the camplate I am using.

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Scott

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Thu Apr 04, 2019 12:32 pm

Yep, that should be good...go for it!
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Sun Apr 21, 2019 9:19 pm

I got the gearbox and inner timing cover installed. I readjusted the quadrant spring and everything shifts nicely so far. I turned my attention to the clutch side. Like the gearbox it worked fine before I tore the engine apart so I didn't really address anything other than clean it up and install new friction plates. This time I'm leaving nothing to chance. The cush drive is getting new rubbers. Mine was a riveted affair.

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I drilled out the rivet heads on the front of the cush drive and drove the pins out of the back with a punch. The rubbers were in terrible shape.

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There was a coating of rubber all over the insides. I got everything cleaned up and will have to order some new rubber buttons and 4 rivets.

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Scott

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Re: Hammer of the Gods - B50SS Project

Post by beat » Mon Apr 22, 2019 8:30 pm

:thumb :thumb

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Sun May 26, 2019 9:22 pm

A small job. The Progressive rear shocks are a bit larger than the originals and the brake rod was rubbing on the shock. I had a new pivot turned up 1/4" longer.

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Scott

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Wed Jul 03, 2019 4:57 pm

The Gearbox and Primary have been put back together for some time but I haven't been able to test ride the bike yet this year. The reason is the gas tank has been off since winter. I decided I wanted it painted in the original black with red pinstripe scheme. I have had terrible luck with painters over the years so I decided I would do it my self.

I started by taping out the original pattern which was easy to do because the tank had score lines where the original stripes were. Then I sanded the tank with 400 grit on a small foam block. There was a slight dent on the top that was filled.

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The next step was to visit my local auto paint supplier to ask about primers and different paint options. They were relatively helpful and convinced me I need an etch primer on bare aluminum.

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The etch primer has to chemically bond with the next layer and they are sprayed within 30-45 minutes of each other. I chose a high build primer that I could block sand.

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For the final coat I chose a 2k single stage gloss black. I wanted single stage because I wanted the decals and pinstripe on top of the paint like original. I also wanted to be able to color sand in case of any runs or dirt in the paint.

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There was some orange peel and some dirt in the final coats. I started the color sanding process with 1500 grit then 2000 grit and will finish with 3000 grit. Then I have to buff and polish the paint.

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Stay tuned for the finished tank. I hope to complete it next week and finally get this bike out onto the road.

Scott

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Re: Hammer of the Gods - B50SS Project

Post by beat » Wed Jul 03, 2019 9:55 pm

:thumb :thumb :thumb

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Fri Jul 05, 2019 8:08 pm

I got impatient waiting for the 3000 grit Trizact paper to show up so I just decided to cut and polish after 2000 grit. I was happy with the finish so I added the pinstripes. I used 1 Shot enamel in Fire Red. I want to wait for the stripes to really harden up before I apply the BSA decal.

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I also decided to use the NOS dual muffler set up that I acquired. Here it is for 2019. Now I really need to ride it.

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Scott

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Sat Aug 10, 2019 2:30 am

The bike runs great and the gearbox is shifting very nice. I've got some oil leaks coming from the rocker cover area. I changed the rocker spindle o-rings and re-torqued the cover. The center bolts that hold the compression release bracket and head steady had loosened. So I put some blue loctite and lock washers on those. I also decided to add a top end breather through the rocker cap. I am a huge fan of an fittings so I used a -6 an bulkhead and a 5/16 spigot. The breather pushes a lot of air out of the rocker area. I haven't got a chance to ride it with the breather on but hopefully it will reduce the pressure and limit the oil leaks up top.

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Re: Hammer of the Gods - B50SS Project

Post by beat » Sat Aug 10, 2019 8:21 pm

Rookster wrote:
Sat Aug 10, 2019 2:30 am
hopefully it will reduce the pressure and limit the oil leaks up top.
where do you go with this air ??

beat

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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Mon Aug 12, 2019 12:40 am

The hose runs up to the front downtube then it follows the frame down under the engine and ends down by the kickstand spring. I have a little breather filter on order for the end of the hose. Both the rocker cap breather and primary breather push quite a bit of air out of them. I was surprised how much air comes out of the rocker cap. I went for a nice long ride today and no oil leaked out of the rocker feed, rocker caps, rocker spindles or pushrod cover. I'm still getting a little bit from the rocker gasket. I will replace that over the winter.

Now if I could only vent the gearbox I wouldn't get a stream of oil crawling out of the clutch arm. My B50 likes to mark its territory. At least it will keep me busy when winter hits.

Scott

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Mon Aug 12, 2019 8:07 am

The piston flying up and down is not a pump (it sucks as hard as it blows), just pressure going up and down with and average pressure of zero, where is your pressure being generated to "pump" air out of the rockerbox and primary drive? Are you fitting extra breathers to get rid of "blow-by" past the rings? Maybe attention to the bore/rings would reduce the buildup of pressure, I wonder if you are fixing the symptom rather than the cause...
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Mon Aug 12, 2019 6:36 pm

The breather filter arrived today. Here is a pic of the end of the breather hose from the rocker cap.

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The top end breather just gives the air another path out rather than swirling around the rocker area and having to travel back down and out through the primary. I was surprised at the amount of air that made it up into the rocker area and out of the breather.

Scott

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Re: Hammer of the Gods - B50SS Project

Post by beat » Mon Aug 12, 2019 8:46 pm

nice bike and a nice filter....

:thumb

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Re: Hammer of the Gods - B50SS Project

Post by madsundaysurvivor » Thu Aug 29, 2019 8:05 am

Hello rookster,
If you use reed valve in crankcase breather ,possibly its function will be canceled when using free breather in rocker cap. Most of the air will flow through pushrod tunnel. When the race stroke goes up the air will enter through the filter to the pipe of the rockerbox. And the engine always will have constant pressure.
I'm sorry, I don't know if I explain myself well, even with a translator it is difficult for me
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Re: Hammer of the Gods - B50SS Project

Post by skippy » Thu Aug 29, 2019 11:47 pm

madsundaysurvivor wrote:
Thu Aug 29, 2019 8:05 am
If you use reed valve in crankcase breather ,possibly its function will be canceled when using free breather in rocker cap.
I will say definitely.
Doug
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Fri Aug 30, 2019 2:34 am

No reed valve on the primary breather. It has the original bell shaped breather filter on it.

Scott

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Fri Aug 30, 2019 8:25 am

Maybe join them up and put a valve in the end....
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Sat Oct 19, 2019 11:52 pm

I added a kill switch. It is a normally open switch. When pressed it earths the coil which stops it firing.

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Re: Hammer of the Gods - B50SS Project

Post by minetymenace » Sun Oct 20, 2019 6:17 pm

...Ideally Kill switches should be fail safe (i.e. normally closed), with your method releasing the kill switch will make it fire, so can be used for checking the ignition or make it back fire...
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Re: Hammer of the Gods - B50SS Project

Post by Rookster » Tue Oct 22, 2019 3:06 am

I went for a nice fall ride today. Leydecker Road in West Seneca, NY is a short curvy road that has a beautiful view of the gorge and 9 curves in under a mile. Then I got lost in Elma and East Aurora for about 2 hours. It was a great afternoon.

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The bridge over Blossom Creek in Elma, NY

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Leydecker Road in West Seneca, NY

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Old Shep, the hermit of Leydecker Road

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Old Shep with his tent and grindstone

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Re: Hammer of the Gods - B50SS Project

Post by koncretekid » Wed Oct 23, 2019 12:14 am

Great looking bike, great ride! I'm jealous - - I've been home in Nova Scotia for about 10 days, great riding weather, but I'm stuck helping my son, daughter-in-law, and their one-year old baby move from Toronto to Canning, N.S.(about 150 miles from my home near Yarmouth), and clean up a mess of fallen trees as a result of the Hurricane Dorian. But I can't regret the time we've been able to share with them.
Tom
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Re: Hammer of the Gods - B50SS Project

Post by beat » Wed Oct 23, 2019 9:14 pm

:grin: :grin: <069 <069 :thumb

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