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Hans Kreuzen's 53 and 50-D1 project
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cocorico
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June 21, 2015 - 5:19 pm
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Hans, the first baffle (on my D3, anyway) is held in place by a bolt through the silencer body, the two lugs act to keep the baffle centralised in the tube. The second baffle sits on the threaded bar from the rear of the first and is held against the end fishtail by a nut right at the end of the whole assembly. If you need any pics / measurements, look on my rebuild thread.

Note - there are no rivets used anywhere.wink

The Bantam Club Forum - all the answers are in there. If not, Google may.

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Hans Kreuzen
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June 23, 2015 - 11:33 am
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cocorico said
Hans, the first baffle (on my D3, anyway) is held in place by a bolt through the silencer body, the two lugs act to keep the baffle centralised in the tube. The second baffle sits on the threaded bar from the rear of the first and is held against the end fishtail by a nut right at the end of the whole assembly. If you need any pics / measurements, look on my rebuild thread.

Note - there are no rivets used anywhere.wink

Thanks for the info cocorico, I'll work out a plan of attack and if all else fails, I can always just bolt the fish tail and baffles together using a threaded rod and than RIVET the fishtail on the end to the housing to keep it from flying out.

At least there would be two more rivets to countrofl

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Hans Kreuzen
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June 23, 2015 - 11:52 am
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I decided to use a Wipac large switch headlamp for my 1950 plunger, I found out that BSA fitted from June 1950 to October 1953.

I managed to buy a NOS large Wipac switch for $25AU (12 pounds) on eBay and it was still in the original boxwow

This is why I posted in the wanted section that I am looking for a early Wipac dip switch. (Anyonewhistle)

If I ever find another alloy early headlamp, I will change it over and use this one on my 1953 D1, at least this way I can get the 50 on the road with a headlamp.

Wipac-1951-large-wipac-1.JPG

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1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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BSAdave
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June 23, 2015 - 1:19 pm
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Another step Forward, It will soon be ripping up the highways.

I could agree with you, but then we would both be wrong

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Hans Kreuzen
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June 26, 2015 - 10:55 am
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Finally some good news, The crank from maddog leary arrived and my friend said it dialled up goodclap

As soon as my new compression plates arrive we can start to assemble the casings, at least I am going forward again, This bantam is definitely teaching me to be patientranting

Robs-crank-1.JPG

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1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Maddog Leary
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June 26, 2015 - 12:53 pm
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Phew! that's a relief.  I don't have all that fang dangled kit! lol..... But I'm glad it dialled in ok!.  

MD thumbs-up

Maddog - 56 Swingarm D3 Major -  Major Works in progress! Machine is fighting against me every which way!

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Hans Kreuzen
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July 17, 2015 - 10:51 am
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Guess what!!!, The crank I bought, douse not fit in the early casings, Totally my fold for not researching it enoughdoh

So back to square one again and I'll keep looking for a good early D1 crank,  

I did say that this bike is teaching me to be patientranting 

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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dimitris
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July 17, 2015 - 8:38 pm
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That sucks! Now is see why people prefer to do those jobs in Winter...doh
One problem brings another, waiting for parts, waiting, more waiting.... Very slow procedure..dunno

BSA D1, 125cc (1952)---BSA D10 Sport 175cc (1967)---Triumph Cub T20 (1960)

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Maddog Leary
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July 18, 2015 - 3:22 am
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dimitriscy said
That sucks! Now is see why people prefer to do those jobs in Winter...doh
One problem brings another, waiting for parts, waiting, more waiting.... Very slow procedure..dunno

Try being made redundant (without a payout) being 'older' and trying to get work....  Whilst watching and reading about you lot getting on, finding and getting those bits and parts needed and progressing with your beasties; seeing the parts online that I need slip through my fingers cos don't have the dosh to buy them!....  That's patience!!!!!!......   Lol

MD

Maddog - 56 Swingarm D3 Major -  Major Works in progress! Machine is fighting against me every which way!

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Hans Kreuzen
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August 27, 2015 - 10:55 am
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Hi All

Just a update on NO progress, except for a original Wipac lens and reflector that was given to me by a local club member, He decided to fit a 12 volt sealed unit on his Bantam in stead, I also installed a new high beam switch, the original electric triangle Wipac one was to expensive and hard to find.

August-2015-forum-1.JPGAugust-2015-forum-2.JPG

I am still waiting on my crank to get balanced, and gave the mechanic another early crank for parts.dunno

August-2015-forum-3.JPG

While I am waiting and learning to be patient, I build 3 engine stands out of scrap steel that was given to me by a mate, the 150cc engine in the picture needs a barrel and head to finish, the other engine casings are still rusted stuck together, I'll do a post on that stuck engine as soon as I buy a new hammer from cocorico.

I also bought some leg shields from HowD1 (Rick) thumbs-upand I might need that 150cc engine to push me along, unless the wind is blowing the right way rofl

And that is all the news I have on my 1950 Plunger. 

Hans

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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BSAdave
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August 27, 2015 - 11:52 am
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Liking the engine stands,

I could agree with you, but then we would both be wrong

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cocorico
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August 27, 2015 - 12:21 pm
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Ooh - get you with your fancy, painted engine stands!

What size hammer are you looking for? Though I generally buy old axes and such, there are usually plenty of old hammer heads to be found.

 

IMG_1168-test1.JPG

Might help to split your cases?

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The Bantam Club Forum - all the answers are in there. If not, Google may.

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BSAdave
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August 27, 2015 - 12:28 pm
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That is a big chopper

I could agree with you, but then we would both be wrong

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Hans Kreuzen
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August 27, 2015 - 12:33 pm
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Wow, Remind me never to get on the wrong side of you, That axe is big enough to cut the Eiffel tower down rofl

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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cocorico
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August 27, 2015 - 2:12 pm
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It's OK - it was all I could do to hold it up, never mind swing it! About 4kg if I recall correctly, there must have been some big lads about to swing stuff like that all day.

Now these are MUCH easier to handle, and I've a nice little Hults Bruk hatchet nearly ready for use. (see, I too am a rivet counter in my own way). rofl

IMG_1632-test1.JPG

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The Bantam Club Forum - all the answers are in there. If not, Google may.

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Hans Kreuzen
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September 9, 2015 - 9:56 am
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Still waiting for my crank, So I have decided to go green and run the bantam on wind powered sails, Thank's to Howdy1, I now have extra wind power, That is, If the wind blows in the right direction rofl 

I just have to by some more dome nuts now.fishing_gif

Leg-shields-on-our-50-4.JPG

Thanks Rick, Cheers Hans

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1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Hans Kreuzen
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October 3, 2015 - 8:27 am
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Hi all

Finally some progress, I got my crank back from the mechanic and it balanced up O.K.

My friend and I fitted the new small end brass bush, drilled the oil holes and reamed the bush to fit the new piston and rod.

Crank-endplay-2.JPG

Next we trail fitted the crank into the new bearings  and after a bit of light sanding on the shaft we had a nice fit into the bearings.

All the gears are fitted and the gear selector has a new spring and ball.

Crank-endplay-sizes-5.JPG

With the casing trail bolted together we measured the end play for the shim's, This is where it got interesting, We have a heap of end play on the electric stator side.

I'll ask a few questions in the tech post's and see if anyone may have a answer for me, At least I am going forward with the restoration againthumbs-up

Crank-endplay-sizes-7.JPG

This is the distance spacer bush on the crank.

Won't be long now I hope and I'll be scooting down the road,roflfingers-crossed See ya'h, Hans

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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BSAdave
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October 3, 2015 - 10:48 am
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You are so close now, i can't help ypu with the end float but i'm sure some one will come along with the help you need.

I'm almost sure that my D1 crank had a washer on one end of it

I could agree with you, but then we would both be wrong

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Hans Kreuzen
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October 4, 2015 - 6:42 am
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BSAdave said
You are so close now, i can't help ypu with the end float but i'm sure some one will come along with the help you need.

I'm almost sure that my D1 crank had a washer on one end of it

Thanks Dave, Somebody may be able to answer my Questions, I posted the questions in the technical section.fingers-crossed

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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Hans Kreuzen
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October 25, 2015 - 7:58 am
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Hi All, Here is a update:

The engine is finally back together and apart from setting the timing is ready to go back into the frame, Hopefully next week, Been very busy working 10-12 hour day's, My friend and I have been assembling the engine after work and I have learned so much and really enjoyed it.

Some of the reasons for swearing during the build where, The new stator bush was to long and it had to be machined down, it also spun in the housing so we had to lock tight it in, The new Geni mag nut was to thick and hit the fly wheel, more machining, The end of the crank was mushroomed and stripped out for the cam to fit, heaps of filling on the crank end and also, we had to re-tap the cam screw hole to 4 MM. as it was stripped out.

All the casing/ housing locating dowel needed to be re made, And to top it off, the new 3 clutch plates I bought here in Oz needed to be filed to fit the cog, It was about 3 hours work of carefully filling the teeth to make it fit.

Clutch-plates-fitting-1.JPGClutch-plates-fitting-2.JPG

It won't be long now, Timing, Carby, Exhaust, Headlight to go.wave

PS: Should I use more 2T oil for running in (60 thou re- bore and new rings/piston) I am going to run 25 to 1 mix.

1950 D1 plunger for daily use, Concourse 1948 D1 rigid, Black 1953 D1 plunger nearly done and a 1949 rigid D1 survivor.

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