Bsa B31 Plunger Part 10

Part 10 of the restoration of my 1953 BSA B31 Plunger model

[@UPTHETOWN]

Love watching you work Brian. Thanks

[@500dbd34]

Cheers

[@smoggybiker5036]

Thanks Brian, excellent work as usual.

[@500dbd34]

Thank you

[@matijaravnik5411]

Sir, you are master. Thank you for uploading this astonishing work, and it is a huge help because I'm bringing back to life one myself.

[@500dbd34]

Thanks

[@richardortiz8704]

2021

[@nitram_nosnibor]

Again, absolutely wonderful to watch. The only thing wrong is that you make it look so easy 😁 I had the terrible task of decreasing and cleaning an engine over the weekend where the previous owner didn’t after fixing an oil leak. I loved seeing your lathe magic, can’t wait to get mine and do my own work. Thanks again for uploading this Brian 👍🏻

[@500dbd34]

Thanks again for the comment, brill.

[@EveAntony]

An absolute worth watching video. Really appreciating your technical knowledge. Awaiting for the next video. Love from India.

[@500dbd34]

Cheers, thanks for the comment.

[@bradfisher478]

Fantastic

[@johnpenny2328]

Superb work

[@500dbd34]

Thank you

[@nikhilraj4013]

Awesome 👌

[@500dbd34]

Thank you for the comment

[@nikhilraj4013]

Brian Alfonso waiting for next episode

[@singhkarm6520]

Nice

[@charlesmattina3787]

Thanks for the video Brian. Did you check the crank end float on this? Why or why not? I am doing my first motor rebuild now, it is a Ariel Nh355... very similar bottom end

[@500dbd34]

Hi, When I rebuilt this engine there was some end float but it disappeared when the shock absorber was fitted. The big and small end checked out OK but I did fit a new gudgeon pin. Good luck with you rebuild.

[@paulmeads802]

hi, great series of video's Brian. Tell me are the lock tabs on the oil pump standard or are they your own preference. Cheers

[@500dbd34]

Hi, thanks for the comment, the locking tabs are not BSA but you can get then on line. I found that if I overnighted the bolts on the pump it tightened up a bit. Cheers Brian

[@patrickluthi5273]

Hello Brian I have a problem with my b31 crank. Its about replacing the big end. I replaced the pin and the outer race in the conecting rod. Now my problem is that i can't put the conecting rod on my new roller bearings because it seems that the tollerances are to small. Have you ever had that problem? Do i need to reem the outer race out if this is even possible? Kind regards Patrick

[@500dbd34]

Sorry I can’t help you with this one, I used an engineer to do mine as I have had trouble with set up and balancing in the past. I hope to have another attempt soon . Good luck with yours. Cheers Brian

[@dedyprasrtyo2557]

Amazing.... How weight and diametere Franck Shaft of bsa motorcycle???

[@Dave.Wilson]

Nice and clean rebuild, hand's who hasn't broken a ring on one of those things. What is the sealer you used on the crank case, looked like body filler from here, but i'me sure it wasn't.

[@500dbd34]

Hi, thanks for the comment, the crank cases were vapour blasted, no filler anywhere. They come up like brand new as you can see. Cheers B

[@Dave.Wilson]

​@@500dbd34 I meant to say, what was the sealer you used between the crankcase halves, it looked like you were mixing s hardener in to it?

[@500dbd34]

@@Dave.Wilson Sorry, mis- understood your post. The jointing compound is ThreeBond 1215 which is silicone based, not twp pack but I do mix it up a bit. Thanks again B

[@Dave.Wilson]

@@500dbd34 thanks for that.

[@pambudibayu2697]

Dear Sir I any questions what is the size of distance collar long? inside diameter? outside diameter? what kind of material do you use for it? Thank's you very much Best regards

[@jert6185]

I love the videos you make. I have seen most of them and learned a lot. Keep up the good work and make more! I am looking to try to rebuild a '52 M21. Where do you buy most of your parts? Greetings from holland.

[@500dbd34]

Thanks for the comment, always appreciated. There are plenty of parts suppliers for these bikes, I start by searching the part numbers on ebay or google. If you join the ownerclub their magazine has lots of suppliers adverts. Good luck Cheers B

[@fire44x]

The big end is that a roller bearing reused?

[@500dbd34]

Yes, the big end checked out OK.

[@MartynStubbsTBS]

hello brian , I have a tight spot on my back wheel , new brake shoes , new wheel bearings and new sprocket , any idea what might be please ? new chain .

[@500dbd34]

Take the chain off and back off the brake and try again, sounds like an oval brake drum , unless it’s really bad I would be tempted to live with it as skimming the drum is best done on the wheel and can be expensive. If it was the front you would need to sort it though. Good luck B

[@MartynStubbsTBS]

@@500dbd34 thankyou

[@heinrichschaefer4107]

Form Bavaria👍😂👏

[@500dbd34]

Thanks

[@rajb5595]

How much the crank weight

[@500dbd34]

Sorry, no idea.

[@rajb5595]

@@500dbd34 thank u for the reply . I have one B31 . I love the way the low end torque comes into play , thanks for the weighty crank