Author Topic: 1951 BSA A7  (Read 4087 times)

Online trevinoz

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Re: 1951 BSA A7
« Reply #30 on: 04.03. 2014 20:46 »
No correction necessary, Richard.
Trev.

Offline anjimehra

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Re: 1951 BSA A7
« Reply #31 on: 01.04. 2014 04:08 »
Hi guys
Back on the bike after a break . Need to take a decision on thr RH con rod. What should I do with the hole? Seal it ? If not which way should it face? Thanx
Anji

Offline muskrat

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Re: 1951 BSA A7
« Reply #32 on: 01.04. 2014 08:05 »
I'd seal it Anji. Just as a precaution. Don't want any oil to escape before it gets to the left side. It may make no difference but I'd err on the side of if it does it would hurt.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline anjimehra

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Re: 1951 BSA A7
« Reply #33 on: 01.04. 2014 10:58 »
I'd seal it Anji. Just as a precaution. Don't want any oil to escape before it gets to the left side. It may make no difference but I'd err on the side of if it does it would hurt.
Cheers

Thanx Muskrat. Youve made up my mind !!. Will do as you say & start the assesembly
Anji

Offline anjimehra

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Re: 1951 BSA A7
« Reply #34 on: 02.04. 2014 08:47 »
Hi Muskrat

Will M Seal do for blocking the hole. Any suggestions ?
Thanks, Anji

Offline muskrat

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Re: 1951 BSA A7
« Reply #35 on: 02.04. 2014 10:00 »
G'day Anji.
I did a google on M Seal. I can't speak Indian but I got a laugh out of their 1 minute Utube ad. *lol*
In a perfect world I'd use a big end shell without the hole. I do remember buying a set with only the hole in 1 shell. Can't remember where from  *dunno*. Any of those 2 pack epoxy adhesives like that would work. What I would do is countersink the hole (big end shell side) about 1/16" deep. Warm the rod and try to push it down the little hole as far as I could before finishing it off just below flush.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline anjimehra

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Re: 1951 BSA A7
« Reply #36 on: 10.04. 2014 15:25 »
G'day Anji.
I did a google on M Seal. I can't speak Indian but I got a laugh out of their 1 minute Utube ad. *lol*
In a perfect world I'd use a big end shell without the hole. I do remember buying a set with only the hole in 1 shell. Can't remember where from  *dunno*. Any of those 2 pack epoxy adhesives like that would work. What I would do is countersink the hole (big end shell side) about 1/16" deep. Warm the rod and try to push it down the little hole as far as I could before finishing it off just below flush.
Cheers

This is how I finally didi it. Used a BA tap in the offending hole & screwed in an Al screw using threadlock, finally punching the Al in the con rod to lock the screw. Kep your fingers crossed ??
Iam not able to figure out what the brg shim drive side does ? It is item 81 in the attached illustration. What are the 2 slots for? Is this some sort of seal also ? Sorry to sound like a yokel but Iam foxed
Thanks
Anji

Offline muskrat

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Re: 1951 BSA A7
« Reply #37 on: 10.04. 2014 20:43 »
G'day Anji.
It's a type of oil slinger, it guides oil splash back through the bearing. It is a "must have" part or your primary will fill with engine oil.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline anjimehra

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Re: 1951 BSA A7
« Reply #38 on: 11.04. 2014 09:00 »
G'day Anji.
It's a type of oil slinger, it guides oil splash back through the bearing. It is a "must have" part or your primary will fill with engine oil.
Cheers

Thanks Muskrat. What should be the end float on the crank. Mine is around 15. Thou which appears way too much. I remember a fig of 5 thou on my Flash

Offline muskrat

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Re: 1951 BSA A7
« Reply #39 on: 11.04. 2014 13:06 »
1.5 - 3 thou", 5 is the max limit.
Cheers
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline anjimehra

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Re: 1951 BSA A7
« Reply #40 on: 11.04. 2014 17:07 »
1.5 - 3 thou", 5 is the max limit.
Cheers

Thanks again Muskrat. I think I owe you a few crates of beer so why dont you come to India on a bike ride & we can split a few cases of Indian Lager !!!!!
Anji

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Re: 1951 BSA A7
« Reply #41 on: 15.04. 2014 09:20 »
1.5 - 3 thou", 5 is the max limit.
Cheers

Thanks again Muskrat. I think I owe you a few crates of beer so why dont you come to India on a bike ride & we can split a few cases of Indian Lager !!!!!
Anji

Does it make a difference if the Main roller brg has a lesser no of rollers viz a viz the original. Personally Cant imagine it should

Offline muskrat

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Re: 1951 BSA A7
« Reply #42 on: 15.04. 2014 11:01 »
All I could say is less rollers = less strength.
Maybe 1 or 2 at the max might be OK
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7

Offline anjimehra

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Re: 1951 BSA A7
« Reply #43 on: 15.04. 2014 11:08 »
All I could say is less rollers = less strength.
Maybe 1 or 2 at the max might be OK

Hi Muskrat.
This is a japanese brg KOYO ( 206 ) which I have used succesfully in the past. Roller dia is slightly bigger & theres 1 less roller. As you say, shouldnt make a difference. Anyways, no choice as no other makes available.
Anji

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Re: 1951 BSA A7
« Reply #44 on: 25.04. 2014 08:51 »
Hi guys

Any simple way of removing the inner race of the main roller brg w/o damaging the cage. Dont have any special brg pullers ?
thanks
Anji