BSA A65 fork oil change and front end details discussed.
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- Опубліковано 20 сер 2024
- Surprisingly, there was oil in the forks, but nothing which looked particularly pleasant, so I changed the fork oil and here I discuss the process, as well as a few other front end related items and findings.
That “ fork oil” looked like it’s had water contamination,definitely on the left leg,I’ve recently acquired a bullet that seems to be in the same mechanical condition ,everything needs attention,unbelievable what some “ mechanics “ find acceptable,I reckon you’ve saved that machine from the scrapyard,
Aye, less like oil than an emulsion.
I've added the 21 front sprocket to my 70 A65T and can thoroughly recommend it. A little more relaxed at 60-65mph; but i found the biggest change was it allowed 2nd gear to be held longer so made the bike much more responsive on a twisty road. Didn't have a big hole to third either. I'm a big guy as well. The US bikes particularly were partly geared for 1/4 mile time, so one extra tooth helps on the open road. Hassle to change though thru the primary/clutch etc. Cheers!
Yes Paul , Had the same mayonnaise out of my old B40 , been stored since 1977 . Stripped the stanchions only to find they were rusty and pitted so replaced with new ones , new bushes and seals , used SAE 30 in them worked a treat after that !
I like to flush forks with paraffin to expunge as much of the old oil and wear particles as possible.
Milky! Bonus player!
No rebound dampning. 20W50 probably helps in this department.
BTW - Lovely A65. I have a 1964 Lightning rocket same colour and tank as yours Paul so I am biased.
G'day Paul,time for new seals I think, cheers mate, thought I had trouble with the sound coming through its my headphones on the blink the buggers are just new, bloody modern crap.
Thanks Paul.
According to my old Casio calculator, you should get 56mph at 4,000 revs if it was 50 previously. That should be calmer.
Very interested to learn that you use 20w50 oil in the forks Paul. I would have thought that would have been way too heavy. I usually default to ATF in conventional forks but there you go - we live and learn!
I always use ATF in my Triumph T140V too.
It all depends on the design and specified oil.
A 20W-50 oil is a 50 2wight oil that acts like a 20 weight oil at low temperatures. If it works, it should not harm a thing. I never though of using that in my original Bonneville forks. I cannot anymore try it due to the forks getting twisted in an accident, a friend wanted to ride it and hit a tree. Luckily he was not injured. The owner will think he has a new motorcycle once you are done with fixing the neglect.
I put 20/50 in my T140E forks to stiffen it up a bit after I added a second disc and caliper….
Lovely bit emulsified oil, needs a good flush eh, that is going to be one seriously sorted bike when you're done
I usually flush the forks a couple of times with diesel to clear all the sludge out.
It doesn't seem to damage the fork seals but I can't be sure.
Diesel engines have seals too.
Never thought of it that way.
👍
When stuff like that came out of my front end, penicillin provided the cure lol. These days I often find people have used ultra light 10w oil, or even thinner. May as well use WD40 for all the good it does.
Hi Paul I've been following your progress with interest. Lovely result and the owner should be rapt. Question: If you were to raise the final drive ratio, would you change the crankshaft sprocket or the gearbox sprocket? How much time is involved in swapping the gearbox sprocket?
Hi David, having had a call from the owner, I will soon be replacing the gearbox sprocket - watch this space for more fun soon!
How did you get on with undoing the top nuts? mine not budging!
The oil looked more like a milk shake 🥤🥤 more than oil Can I get a burger 🍔 with my shake 🤣🤣👍‼️ As Always patriotically inspired Diamond Dave ♦️♦️♦️‼️
Is it easier to put the fill caps back on with the bike in the air? i did my left leg on the ground (probably like a fool) and it took me two hours to force it back on, because the spring fought me. Am i just living up to my name?
One at a time is usually not too difficult, but removing both at once would be asking for it!
@@paulhenshaw4514 should the front wheel be in the air when you attempt to reinstall them?
Yes, if your forks have internal springs.
Have you any chips to go with that mayo?
Well, what a surprise.
A nasty emulsified mess that certainly did not resemble oil of any kind.
The reason that bike has lasted this long is because it was so unreliable it was stashed in the back of a shed or garage while it looks nice it was a pile of unreliable pile of British crap and to proof would be in the mileage from new please tell the how many miles it has done Paul 🤔
@mickducati1947
Ducati owners .......w ⚓s.
British crap - just like the British crap that helped win WW2, yes? Ducati are Italian and we know whose side they were on - not the winning one! I have no idea how many miles this BSA might have done in it's lifetime, as the clocks appear to also have been 'restored'.
@@paulhenshaw4514 Don't mention the war 🤣🤣🤣🤣
And of course those late sixties Ducatis were just absolute paragons of reliability as well eh?😂
Hey, you tell em Mick. Now that we now know that British bikes are crap, Why not tell everybody which bikes are not crap. I am intrigued. I run a 1973 Triumph 500 Daytona and i had to go right through the bike and it has been so reliable over the past 8 years that i am beginning to worry about it. Over to you Mick and let's hear what bikes are not crap. Cheers.