Author Topic: Engine/gearbox clearance figures  (Read 466 times)

Offline coater87

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Engine/gearbox clearance figures
« on: 20.10. 2015 11:56 »
Everything is moving along with the engine and gearbox rebuild.
What I'm looking for is a source of information for all the clearances. Everything from crankshaft endfloat, camshaft endfloat, bushing clearance, layshaft tolerance, etc. Etc.

 I have Bacons and that awful Haynes manual. Am I missing a book?

 Is there one source for all this important rebuild information?
Central Wisconsin in the U.S.

Online Greybeard

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Re: Engine/gearbox clearance figures
« Reply #1 on: 20.10. 2015 14:29 »
http://www.bsawiki.com is very useful

Online chaterlea25

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Re: Engine/gearbox clearance figures
« Reply #2 on: 20.10. 2015 20:52 »
HI
All the clearances are listed in the BSA service sheets
http://www.classicrider.dk/english/technic/ServiceSheets.php

HTH
John
1961 Super Rocket
1963 RGS (ongoing)

Offline coater87

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Re: Engine/gearbox clearance figures
« Reply #3 on: 20.10. 2015 21:38 »
 ACCCK *ex*

 I forgot about the service sheets.....I knew something was slipping my mind, but whatever it was had slipped my mind.

 Ok, enough of that.

 Thanks GB, I will have a perusal through the wiki also.

 No matter how many or what kind of motors you rebuild, there is always that little voice warning you that you are overlooking something. After the cases come back, the only things (I believe) I have left to do is remove any casting flash, chase a few holes, do the A65 anti drain valve conversion,
clean the cases 2 more times, and put it together.

 Lee
Central Wisconsin in the U.S.

Online chaterlea25

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Re: Engine/gearbox clearance figures
« Reply #4 on: 20.10. 2015 22:57 »
HI Lee,
I hope you havn't sent the cases for blasting without  blocking off the oil bleed from the
pressure release valve to the cam trough, theres a bleed hole from this to the cam gear
This oilway is virtually impossible to clean out without drilling out the pressed in blanking plugs *sad2*

HTH
John
1961 Super Rocket
1963 RGS (ongoing)

Offline coater87

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Re: Engine/gearbox clearance figures
« Reply #5 on: 21.10. 2015 00:33 »
 Nope,

 All that was marked (with red tape) and then sent to the blaster. He then blocked those passages with some type of metal looking "super tape" before work began (whatever that tape was, I had to peel/pry it off with a small screwdriver) I also included instructions to NOT concentrate blasting inside the cases, incidental blasting was fine.  I made a small metal plate and gasket that fit over the oil pump area, so that was protected.The cases are back, and on their way to a place called Morries for machining

 Vapor blasting inside the cases is a waste IMO, and can only lead to trouble. The only time I would even think about having them deliberately blast the inside was if I planned to use Glyptol. I personally am not sold on the idea, and dont use it.

 Lee

 
Central Wisconsin in the U.S.

Online chaterlea25

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Re: Engine/gearbox clearance figures
« Reply #6 on: 21.10. 2015 17:25 »
Hi Lee
 *smile* *smile* *smile* *good3* *good3*

John
1961 Super Rocket
1963 RGS (ongoing)